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diff --git a/docs/manual.html b/docs/manual.html deleted file mode 100644 index 6a40fc2..0000000 --- a/docs/manual.html +++ /dev/null @@ -1,205 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>pugixml 1.6</title> -<link rel="stylesheet" href="pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="manual.html" title="pugixml 1.6"> -<link rel="next" href="manual/install.html" title="Installation"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <b>Overview</b> | - <a href="manual/install.html">Installation</a> | - Document: - <a href="manual/dom.html">Object model</a> · <a href="manual/loading.html">Loading</a> · <a href="manual/access.html">Accessing</a> · <a href="manual/modify.html">Modifying</a> · <a href="manual/saving.html">Saving</a> | - <a href="manual/xpath.html">XPath</a> | - <a href="manual/apiref.html">API Reference</a> | - <a href="manual/toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"><a accesskey="n" href="manual/install.html"><img src="images/next.png" alt="Next"></a></div></td> -</tr></table> -<hr> -<div class="book"><div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.overview"></a><a class="link" href="manual.html#manual.overview" title="Overview"> Overview</a> -</h2></div></div></div> -<div class="toc"><dl class="toc"> -<dt><span class="section"><a href="manual.html#manual.overview.introduction"> Introduction</a></span></dt> -<dt><span class="section"><a href="manual.html#manual.overview.feedback"> Feedback</a></span></dt> -<dt><span class="section"><a href="manual.html#manual.overview.thanks"> Acknowledgments</a></span></dt> -<dt><span class="section"><a href="manual.html#manual.overview.license"> License</a></span></dt> -</dl></div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.overview.introduction"></a><a class="link" href="manual.html#manual.overview.introduction" title="Introduction"> Introduction</a> -</h3></div></div></div> -<p> - <a href="http://pugixml.org/" target="_top">pugixml</a> is a light-weight C++ XML - processing library. It consists of a DOM-like interface with rich traversal/modification - capabilities, an extremely fast XML parser which constructs the DOM tree - from an XML file/buffer, and an <a class="link" href="manual/xpath.html" title="XPath">XPath 1.0 implementation</a> - for complex data-driven tree queries. Full Unicode support is also available, - with <a class="link" href="manual/dom.html#manual.dom.unicode" title="Unicode interface">two Unicode interface variants</a> - and conversions between different Unicode encodings (which happen automatically - during parsing/saving). The library is <a class="link" href="manual/install.html#manual.install.portability" title="Portability">extremely - portable</a> and easy to integrate and use. pugixml is developed and maintained - since 2006 and has many users. All code is distributed under the <a class="link" href="manual.html#manual.overview.license" title="License">MIT - license</a>, making it completely free to use in both open-source and - proprietary applications. - </p> -<p> - pugixml enables very fast, convenient and memory-efficient XML document processing. - However, since pugixml has a DOM parser, it can't process XML documents that - do not fit in memory; also the parser is a non-validating one, so if you - need DTD or XML Schema validation, the library is not for you. - </p> -<p> - This is the complete manual for pugixml, which describes all features of - the library in detail. If you want to start writing code as quickly as possible, - you are advised to <a href="quickstart.html" target="_top">read the quick start guide - first</a>. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - No documentation is perfect, neither is this one. If you encounter a description - that is unclear, please file an issue as described in <a class="xref" href="manual.html#manual.overview.feedback" title="Feedback"> Feedback</a>. - Also if you can spare the time for a full proof-reading, including spelling - and grammar, that would be great! Please <a class="link" href="manual.html#email">send me - an e-mail</a>; as a token of appreciation, your name will be included - into the <a class="link" href="manual.html#manual.overview.thanks" title="Acknowledgments">corresponding section</a> - of this documentation. - </p></td></tr> -</table></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.overview.feedback"></a><a class="link" href="manual.html#manual.overview.feedback" title="Feedback"> Feedback</a> -</h3></div></div></div> -<p> - If you believe you've found a bug in pugixml (bugs include compilation problems - (errors/warnings), crashes, performance degradation and incorrect behavior), - please file an issue via <a href="https://github.com/zeux/pugixml/issues/new" target="_top">issue - submission form</a>. Be sure to include the relevant information so that - the bug can be reproduced: the version of pugixml, compiler version and target - architecture, the code that uses pugixml and exhibits the bug, etc. - </p> -<p> - Feature requests can be reported the same way as bugs, so if you're missing - some functionality in pugixml or if the API is rough in some places and you - can suggest an improvement, <a href="https://github.com/zeux/pugixml/issues/new" target="_top">file - an issue</a>. However please note that there are many factors when considering - API changes (compatibility with previous versions, API redundancy, etc.), - so generally features that can be implemented via a small function without - pugixml modification are not accepted. However, all rules have exceptions. - </p> -<p> - If you have a contribution to pugixml, such as build script for some build - system/IDE, or a well-designed set of helper functions, or a binding to some - language other than C++, please <a href="https://github.com/zeux/pugixml/issues/new" target="_top">file - an issue</a>. You can include the relevant patches as issue attachments. - Your contribution has to be distributed under the terms of a license that's - compatible with pugixml license; i.e. GPL/LGPL licensed code is not accepted. - </p> -<a name="email"></a><p> - If filing an issue is not possible due to privacy or other concerns, you - can contact pugixml author by e-mail directly: <a href="mailto:arseny.kapoulkine@gmail.com" target="_top">arseny.kapoulkine@gmail.com</a>. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.overview.thanks"></a><a class="link" href="manual.html#manual.overview.thanks" title="Acknowledgments"> Acknowledgments</a> -</h3></div></div></div> -<p> - pugixml could not be developed without the help from many people; some of - them are listed in this section. If you've played a part in pugixml development - and you can not find yourself on this list, I'm truly sorry; please <a class="link" href="manual.html#email">send me an e-mail</a> so I can fix this. - </p> -<p> - Thanks to <span class="bold"><strong>Kristen Wegner</strong></span> for pugxml parser, - which was used as a basis for pugixml. - </p> -<p> - Thanks to <span class="bold"><strong>Neville Franks</strong></span> for contributions - to pugxml parser. - </p> -<p> - Thanks to <span class="bold"><strong>Artyom Palvelev</strong></span> for suggesting - a lazy gap contraction approach. - </p> -<p> - Thanks to <span class="bold"><strong>Vyacheslav Egorov</strong></span> for documentation - proofreading. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.overview.license"></a><a class="link" href="manual.html#manual.overview.license" title="License"> License</a> -</h3></div></div></div> -<p> - The pugixml library is distributed under the MIT license: - </p> -<div class="blockquote"><blockquote class="blockquote"> -<p> - Copyright (c) 2006-2014 Arseny Kapoulkine - </p> -<p> - Permission is hereby granted, free of charge, to any person obtaining a - copy of this software and associated documentation files (the "Software"), - to deal in the Software without restriction, including without limitation - the rights to use, copy, modify, merge, publish, distribute, sublicense, - and/or sell copies of the Software, and to permit persons to whom the Software - is furnished to do so, subject to the following conditions: - </p> -<p> - The above copyright notice and this permission notice shall be included - in all copies or substantial portions of the Software. - </p> -<p> - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - IN THE SOFTWARE. - </p> -</blockquote></div> -<p> - This means that you can freely use pugixml in your applications, both open-source - and proprietary. If you use pugixml in a product, it is sufficient to add - an acknowledgment like this to the product distribution: - </p> -<div class="blockquote"><blockquote class="blockquote"><p> - This software is based on pugixml library (http://pugixml.org).<br> -pugixml - is Copyright (C) 2006-2014 Arseny Kapoulkine. - </p></blockquote></div> -</div> -</div></div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"><p><small>Last revised: March 20, 2015 at 07:16:25 GMT</small></p></td> -<td align="right"><div class="copyright-footer"></div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <b>Overview</b> | - <a href="manual/install.html">Installation</a> | - Document: - <a href="manual/dom.html">Object model</a> · <a href="manual/loading.html">Loading</a> · <a href="manual/access.html">Accessing</a> · <a href="manual/modify.html">Modifying</a> · <a href="manual/saving.html">Saving</a> | - <a href="manual/xpath.html">XPath</a> | - <a href="manual/apiref.html">API Reference</a> | - <a href="manual/toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"><a accesskey="n" href="manual/install.html"><img src="images/next.png" alt="Next"></a></div></td> -</tr></table> -</body> -</html> diff --git a/docs/manual/access.html b/docs/manual/access.html deleted file mode 100644 index d5015b5..0000000 --- a/docs/manual/access.html +++ /dev/null @@ -1,900 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>Accessing document data</title> -<link rel="stylesheet" href="../pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../manual.html" title="pugixml 1.6"> -<link rel="up" href="../manual.html" title="pugixml 1.6"> -<link rel="prev" href="loading.html" title="Loading document"> -<link rel="next" href="modify.html" title="Modifying document data"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <b>Accessing</b> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="loading.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="modify.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -<hr> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.access"></a><a class="link" href="access.html" title="Accessing document data"> Accessing document data</a> -</h2></div></div></div> -<div class="toc"><dl class="toc"> -<dt><span class="section"><a href="access.html#manual.access.basic"> Basic traversal functions</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.nodedata"> Getting node data</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.attrdata"> Getting attribute data</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.contents"> Contents-based traversal functions</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.rangefor"> Range-based for-loop support</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.iterators"> Traversing node/attribute lists - via iterators</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.walker"> Recursive traversal with xml_tree_walker</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.predicate"> Searching for nodes/attributes - with predicates</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.text"> Working with text contents</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.misc"> Miscellaneous functions</a></span></dt> -</dl></div> -<p> - pugixml features an extensive interface for getting various types of data from - the document and for traversing the document. This section provides documentation - for all such functions that do not modify the tree except for XPath-related - functions; see <a class="xref" href="xpath.html" title="XPath"> XPath</a> for XPath reference. As discussed in <a class="xref" href="dom.html#manual.dom.cpp" title="C++ interface"> C++ interface</a>, - there are two types of handles to tree data - <a class="link" href="dom.html#xml_node">xml_node</a> - and <a class="link" href="dom.html#xml_attribute">xml_attribute</a>. The handles have special - null (empty) values which propagate through various functions and thus are - useful for writing more concise code; see <a class="link" href="dom.html#node_null">this description</a> - for details. The documentation in this section will explicitly state the results - of all function in case of null inputs. - </p> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.access.basic"></a><a class="link" href="access.html#manual.access.basic" title="Basic traversal functions"> Basic traversal functions</a> -</h3></div></div></div> -<a name="xml_node::parent"></a><a name="xml_node::first_child"></a><a name="xml_node::last_child"></a><a name="xml_node::next_sibling"></a><a name="xml_node::previous_sibling"></a><a name="xml_node::first_attribute"></a><a name="xml_node::last_attribute"></a><a name="xml_attribute::next_attribute"></a><a name="xml_attribute::previous_attribute"></a><p> - The internal representation of the document is a tree, where each node has - a list of child nodes (the order of children corresponds to their order in - the XML representation), and additionally element nodes have a list of attributes, - which is also ordered. Several functions are provided in order to let you - get from one node in the tree to the other. These functions roughly correspond - to the internal representation, and thus are usually building blocks for - other methods of traversing (i.e. XPath traversals are based on these functions). - </p> -<pre class="programlisting"><span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">parent</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">first_child</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">last_child</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">next_sibling</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">previous_sibling</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> - -<span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">first_attribute</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">last_attribute</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">next_attribute</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">previous_attribute</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">parent</span></code> function returns the - node's parent; all non-null nodes except the document have non-null parent. - <code class="computeroutput"><span class="identifier">first_child</span></code> and <code class="computeroutput"><span class="identifier">last_child</span></code> return the first and last child - of the node, respectively; note that only document nodes and element nodes - can have non-empty child node list. If node has no children, both functions - return null nodes. <code class="computeroutput"><span class="identifier">next_sibling</span></code> - and <code class="computeroutput"><span class="identifier">previous_sibling</span></code> return - the node that's immediately to the right/left of this node in the children - list, respectively - for example, in <code class="computeroutput"><span class="special"><</span><span class="identifier">a</span><span class="special">/><</span><span class="identifier">b</span><span class="special">/><</span><span class="identifier">c</span><span class="special">/></span></code>, - calling <code class="computeroutput"><span class="identifier">next_sibling</span></code> for - a handle that points to <code class="computeroutput"><span class="special"><</span><span class="identifier">b</span><span class="special">/></span></code> - results in a handle pointing to <code class="computeroutput"><span class="special"><</span><span class="identifier">c</span><span class="special">/></span></code>, - and calling <code class="computeroutput"><span class="identifier">previous_sibling</span></code> - results in handle pointing to <code class="computeroutput"><span class="special"><</span><span class="identifier">a</span><span class="special">/></span></code>. - If node does not have next/previous sibling (this happens if it is the last/first - node in the list, respectively), the functions return null nodes. <code class="computeroutput"><span class="identifier">first_attribute</span></code>, <code class="computeroutput"><span class="identifier">last_attribute</span></code>, - <code class="computeroutput"><span class="identifier">next_attribute</span></code> and <code class="computeroutput"><span class="identifier">previous_attribute</span></code> functions behave similarly - to the corresponding child node functions and allow to iterate through attribute - list in the same way. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - Because of memory consumption reasons, attributes do not have a link to - their parent nodes. Thus there is no <code class="computeroutput"><span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">parent</span><span class="special">()</span></code> function. - </p></td></tr> -</table></div> -<p> - Calling any of the functions above on the null handle results in a null handle - - i.e. <code class="computeroutput"><span class="identifier">node</span><span class="special">.</span><span class="identifier">first_child</span><span class="special">().</span><span class="identifier">next_sibling</span><span class="special">()</span></code> - returns the second child of <code class="computeroutput"><span class="identifier">node</span></code>, - and null handle if <code class="computeroutput"><span class="identifier">node</span></code> is - null, has no children at all or if it has only one child node. - </p> -<p> - With these functions, you can iterate through all child nodes and display - all attributes like this (<a href="../samples/traverse_base.cpp" target="_top">samples/traverse_base.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">first_child</span><span class="special">();</span> <span class="identifier">tool</span><span class="special">;</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">())</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool:"</span><span class="special">;</span> - - <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_attribute</span> <span class="identifier">attr</span> <span class="special">=</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">first_attribute</span><span class="special">();</span> <span class="identifier">attr</span><span class="special">;</span> <span class="identifier">attr</span> <span class="special">=</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">next_attribute</span><span class="special">())</span> - <span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">" "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"="</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">();</span> - <span class="special">}</span> - - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.access.nodedata"></a><a class="link" href="access.html#manual.access.nodedata" title="Getting node data"> Getting node data</a> -</h3></div></div></div> -<a name="xml_node::name"></a><a name="xml_node::value"></a><p> - Apart from structural information (parent, child nodes, attributes), nodes - can have name and value, both of which are strings. Depending on node type, - name or value may be absent. <a class="link" href="dom.html#node_document">node_document</a> - nodes do not have a name or value, <a class="link" href="dom.html#node_element">node_element</a> - and <a class="link" href="dom.html#node_declaration">node_declaration</a> nodes always - have a name but never have a value, <a class="link" href="dom.html#node_pcdata">node_pcdata</a>, - <a class="link" href="dom.html#node_cdata">node_cdata</a>, <a class="link" href="dom.html#node_comment">node_comment</a> - and <a class="link" href="dom.html#node_doctype">node_doctype</a> nodes never have a name - but always have a value (it may be empty though), <a class="link" href="dom.html#node_pi">node_pi</a> - nodes always have a name and a value (again, value may be empty). In order - to get node's name or value, you can use the following functions: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">name</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">value</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - In case node does not have a name or value or if the node handle is null, - both functions return empty strings - they never return null pointers. - </p> -<a name="xml_node::child_value"></a><p> - It is common to store data as text contents of some node - i.e. <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">><</span><span class="identifier">description</span><span class="special">></span><span class="identifier">This</span> <span class="identifier">is</span> <span class="identifier">a</span> <span class="identifier">node</span><span class="special"></</span><span class="identifier">description</span><span class="special">></</span><span class="identifier">node</span><span class="special">></span></code>. - In this case, <code class="computeroutput"><span class="special"><</span><span class="identifier">description</span><span class="special">></span></code> node does not have a value, but instead - has a child of type <a class="link" href="dom.html#node_pcdata">node_pcdata</a> with value - <code class="computeroutput"><span class="string">"This is a node"</span></code>. pugixml - provides several helper functions to parse such data: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">child_value</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">child_value</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_text</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">text</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">child_value</span><span class="special">()</span></code> - returns the value of the first child with type <a class="link" href="dom.html#node_pcdata">node_pcdata</a> - or <a class="link" href="dom.html#node_cdata">node_cdata</a>; <code class="computeroutput"><span class="identifier">child_value</span><span class="special">(</span><span class="identifier">name</span><span class="special">)</span></code> - is a simple wrapper for <code class="computeroutput"><span class="identifier">child</span><span class="special">(</span><span class="identifier">name</span><span class="special">).</span><span class="identifier">child_value</span><span class="special">()</span></code>. - For the above example, calling <code class="computeroutput"><span class="identifier">node</span><span class="special">.</span><span class="identifier">child_value</span><span class="special">(</span><span class="string">"description"</span><span class="special">)</span></code> and <code class="computeroutput"><span class="identifier">description</span><span class="special">.</span><span class="identifier">child_value</span><span class="special">()</span></code> will both produce string <code class="computeroutput"><span class="string">"This is a node"</span></code>. If there is no - child with relevant type, or if the handle is null, <code class="computeroutput"><span class="identifier">child_value</span></code> - functions return empty string. - </p> -<p> - <code class="computeroutput"><span class="identifier">text</span><span class="special">()</span></code> - returns a special object that can be used for working with PCDATA contents - in more complex cases than just retrieving the value; it is described in - <a class="xref" href="access.html#manual.access.text" title="Working with text contents"> Working with text contents</a> sections. - </p> -<p> - There is an example of using some of these functions <a class="link" href="access.html#code_traverse_base_data">at - the end of the next section</a>. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.access.attrdata"></a><a class="link" href="access.html#manual.access.attrdata" title="Getting attribute data"> Getting attribute data</a> -</h3></div></div></div> -<a name="xml_attribute::name"></a><a name="xml_attribute::value"></a><p> - All attributes have name and value, both of which are strings (value may - be empty). There are two corresponding accessors, like for <code class="computeroutput"><span class="identifier">xml_node</span></code>: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">name</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">value</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - In case the attribute handle is null, both functions return empty strings - - they never return null pointers. - </p> -<a name="xml_attribute::as_string"></a><p> - If you need a non-empty string if the attribute handle is null (for example, - you need to get the option value from XML attribute, but if it is not specified, - you need it to default to <code class="computeroutput"><span class="string">"sorted"</span></code> - instead of <code class="computeroutput"><span class="string">""</span></code>), you - can use <code class="computeroutput"><span class="identifier">as_string</span></code> accessor: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">as_string</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">def</span> <span class="special">=</span> <span class="string">""</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - It returns <code class="computeroutput"><span class="identifier">def</span></code> argument if - the attribute handle is null. If you do not specify the argument, the function - is equivalent to <code class="computeroutput"><span class="identifier">value</span><span class="special">()</span></code>. - </p> -<a name="xml_attribute::as_int"></a><a name="xml_attribute::as_uint"></a><a name="xml_attribute::as_double"></a><a name="xml_attribute::as_float"></a><a name="xml_attribute::as_bool"></a><a name="xml_attribute::as_llong"></a><a name="xml_attribute::as_ullong"></a><p> - In many cases attribute values have types that are not strings - i.e. an - attribute may always contain values that should be treated as integers, despite - the fact that they are represented as strings in XML. pugixml provides several - accessors that convert attribute value to some other type: - </p> -<pre class="programlisting"><span class="keyword">int</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">as_int</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">as_uint</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">double</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">as_double</span><span class="special">(</span><span class="keyword">double</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">float</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">as_float</span><span class="special">(</span><span class="keyword">float</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">as_bool</span><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">def</span> <span class="special">=</span> <span class="keyword">false</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">as_llong</span><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">as_ullong</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">as_int</span></code>, <code class="computeroutput"><span class="identifier">as_uint</span></code>, - <code class="computeroutput"><span class="identifier">as_llong</span></code>, <code class="computeroutput"><span class="identifier">as_ullong</span></code>, - <code class="computeroutput"><span class="identifier">as_double</span></code> and <code class="computeroutput"><span class="identifier">as_float</span></code> convert attribute values to numbers. - If attribute handle is null or attribute value is empty, <code class="computeroutput"><span class="identifier">def</span></code> - argument is returned (which is 0 by default). Otherwise, all leading whitespace - characters are truncated, and the remaining string is parsed as an integer - number in either decimal or hexadecimal form (applicable to <code class="computeroutput"><span class="identifier">as_int</span></code>, <code class="computeroutput"><span class="identifier">as_uint</span></code>, - <code class="computeroutput"><span class="identifier">as_llong</span></code> and <code class="computeroutput"><span class="identifier">as_ullong</span></code>; hexadecimal format is used if - the number has <code class="computeroutput"><span class="number">0</span><span class="identifier">x</span></code> - or <code class="computeroutput"><span class="number">0</span><span class="identifier">X</span></code> - prefix) or as a floating point number in either decimal or scientific form - (<code class="computeroutput"><span class="identifier">as_double</span></code> or <code class="computeroutput"><span class="identifier">as_float</span></code>). Any extra characters are silently - discarded, i.e. <code class="computeroutput"><span class="identifier">as_int</span></code> will - return <code class="computeroutput"><span class="number">1</span></code> for string <code class="computeroutput"><span class="string">"1abc"</span></code>. - </p> -<p> - In case the input string contains a number that is out of the target numeric - range, the result is undefined. - </p> -<div class="caution"><table border="0" summary="Caution"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="../images/caution.png"></td> -<th align="left">Caution</th> -</tr> -<tr><td align="left" valign="top"><p> - Number conversion functions depend on current C locale as set with <code class="computeroutput"><span class="identifier">setlocale</span></code>, so may return unexpected results - if the locale is different from <code class="computeroutput"><span class="string">"C"</span></code>. - </p></td></tr> -</table></div> -<p> - <code class="computeroutput"><span class="identifier">as_bool</span></code> converts attribute - value to boolean as follows: if attribute handle is null, <code class="computeroutput"><span class="identifier">def</span></code> - argument is returned (which is <code class="computeroutput"><span class="keyword">false</span></code> - by default). If attribute value is empty, <code class="computeroutput"><span class="keyword">false</span></code> - is returned. Otherwise, <code class="computeroutput"><span class="keyword">true</span></code> - is returned if the first character is one of <code class="computeroutput"><span class="char">'1'</span><span class="special">,</span> <span class="char">'t'</span><span class="special">,</span> - <span class="char">'T'</span><span class="special">,</span> <span class="char">'y'</span><span class="special">,</span> <span class="char">'Y'</span></code>. - This means that strings like <code class="computeroutput"><span class="string">"true"</span></code> - and <code class="computeroutput"><span class="string">"yes"</span></code> are recognized - as <code class="computeroutput"><span class="keyword">true</span></code>, while strings like - <code class="computeroutput"><span class="string">"false"</span></code> and <code class="computeroutput"><span class="string">"no"</span></code> are recognized as <code class="computeroutput"><span class="keyword">false</span></code>. For more complex matching you'll have - to write your own function. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - <code class="computeroutput"><span class="identifier">as_llong</span></code> and <code class="computeroutput"><span class="identifier">as_ullong</span></code> are only available if your - platform has reliable support for the <code class="computeroutput"><span class="keyword">long</span> - <span class="keyword">long</span></code> type, including string conversions. - </p></td></tr> -</table></div> -<a name="code_traverse_base_data"></a><p> - This is an example of using these functions, along with node data retrieval - ones (<a href="../samples/traverse_base.cpp" target="_top">samples/traverse_base.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">);</span> <span class="identifier">tool</span><span class="special">;</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">))</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool "</span> <span class="special"><<</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">();</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">": AllowRemote "</span> <span class="special"><<</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"AllowRemote"</span><span class="special">).</span><span class="identifier">as_bool</span><span class="special">();</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", Timeout "</span> <span class="special"><<</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Timeout"</span><span class="special">).</span><span class="identifier">as_int</span><span class="special">();</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", Description '"</span> <span class="special"><<</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">child_value</span><span class="special">(</span><span class="string">"Description"</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"'\n"</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.access.contents"></a><a class="link" href="access.html#manual.access.contents" title="Contents-based traversal functions"> Contents-based traversal functions</a> -</h3></div></div></div> -<a name="xml_node::child"></a><a name="xml_node::attribute"></a><a name="xml_node::next_sibling_name"></a><a name="xml_node::previous_sibling_name"></a><p> - Since a lot of document traversal consists of finding the node/attribute - with the correct name, there are special functions for that purpose: - </p> -<pre class="programlisting"><span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">child</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">attribute</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">next_sibling</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">previous_sibling</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">child</span></code> and <code class="computeroutput"><span class="identifier">attribute</span></code> - return the first child/attribute with the specified name; <code class="computeroutput"><span class="identifier">next_sibling</span></code> - and <code class="computeroutput"><span class="identifier">previous_sibling</span></code> return - the first sibling in the corresponding direction with the specified name. - All string comparisons are case-sensitive. In case the node handle is null - or there is no node/attribute with the specified name, null handle is returned. - </p> -<p> - <code class="computeroutput"><span class="identifier">child</span></code> and <code class="computeroutput"><span class="identifier">next_sibling</span></code> - functions can be used together to loop through all child nodes with the desired - name like this: - </p> -<pre class="programlisting"><span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">);</span> <span class="identifier">tool</span><span class="special">;</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">))</span> -</pre> -<a name="xml_node::find_child_by_attribute"></a><p> - Occasionally the needed node is specified not by the unique name but instead - by the value of some attribute; for example, it is common to have node collections - with each node having a unique id: <code class="computeroutput"><span class="special"><</span><span class="identifier">group</span><span class="special">><</span><span class="identifier">item</span> <span class="identifier">id</span><span class="special">=</span><span class="string">"1"</span><span class="special">/></span> <span class="special"><</span><span class="identifier">item</span> <span class="identifier">id</span><span class="special">=</span><span class="string">"2"</span><span class="special">/></</span><span class="identifier">group</span><span class="special">></span></code>. There are two functions for finding - child nodes based on the attribute values: - </p> -<pre class="programlisting"><span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">find_child_by_attribute</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">attr_name</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">attr_value</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">find_child_by_attribute</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">attr_name</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">attr_value</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - The three-argument function returns the first child node with the specified - name which has an attribute with the specified name/value; the two-argument - function skips the name test for the node, which can be useful for searching - in heterogeneous collections. If the node handle is null or if no node is - found, null handle is returned. All string comparisons are case-sensitive. - </p> -<p> - In all of the above functions, all arguments have to be valid strings; passing - null pointers results in undefined behavior. - </p> -<p> - This is an example of using these functions (<a href="../samples/traverse_base.cpp" target="_top">samples/traverse_base.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool for *.dae generation: "</span> <span class="special"><<</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">find_child_by_attribute</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">,</span> <span class="string">"OutputFileMasks"</span><span class="special">,</span> <span class="string">"*.dae"</span><span class="special">).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"\n"</span><span class="special">;</span> - -<span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">);</span> <span class="identifier">tool</span><span class="special">;</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">))</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool "</span> <span class="special"><<</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"\n"</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.access.rangefor"></a><a class="link" href="access.html#manual.access.rangefor" title="Range-based for-loop support"> Range-based for-loop support</a> -</h3></div></div></div> -<a name="xml_node::children"></a><a name="xml_node::attributes"></a><p> - If your C++ compiler supports range-based for-loop (this is a C++11 feature, - at the time of writing it's supported by Microsoft Visual Studio 11 Beta, - GCC 4.6 and Clang 3.0), you can use it to enumerate nodes/attributes. Additional - helpers are provided to support this; note that they are also compatible - with <a href="http://www.boost.org/libs/foreach/" target="_top">Boost Foreach</a>, - and possibly other pre-C++11 foreach facilities. - </p> -<pre class="programlisting"><span class="emphasis"><em>implementation-defined type</em></span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">children</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="emphasis"><em>implementation-defined type</em></span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">children</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="emphasis"><em>implementation-defined type</em></span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">attributes</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">children</span></code> function allows - you to enumerate all child nodes; <code class="computeroutput"><span class="identifier">children</span></code> - function with <code class="computeroutput"><span class="identifier">name</span></code> argument - allows you to enumerate all child nodes with a specific name; <code class="computeroutput"><span class="identifier">attributes</span></code> function allows you to enumerate - all attributes of the node. Note that you can also use node object itself - in a range-based for construct, which is equivalent to using <code class="computeroutput"><span class="identifier">children</span><span class="special">()</span></code>. - </p> -<p> - This is an example of using these functions (<a href="../samples/traverse_rangefor.cpp" target="_top">samples/traverse_rangefor.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">tool</span><span class="special">:</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">children</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">))</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool:"</span><span class="special">;</span> - - <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_attribute</span> <span class="identifier">attr</span><span class="special">:</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">attributes</span><span class="special">())</span> - <span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">" "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"="</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">();</span> - <span class="special">}</span> - - <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">child</span><span class="special">:</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">children</span><span class="special">())</span> - <span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", child "</span> <span class="special"><<</span> <span class="identifier">child</span><span class="special">.</span><span class="identifier">name</span><span class="special">();</span> - <span class="special">}</span> - - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.access.iterators"></a><a class="link" href="access.html#manual.access.iterators" title="Traversing node/attribute lists via iterators"> Traversing node/attribute lists - via iterators</a> -</h3></div></div></div> -<a name="xml_node_iterator"></a><a name="xml_attribute_iterator"></a><a name="xml_node::begin"></a><a name="xml_node::end"></a><a name="xml_node::attributes_begin"></a><a name="xml_node::attributes_end"></a><p> - Child node lists and attribute lists are simply double-linked lists; while - you can use <code class="computeroutput"><span class="identifier">previous_sibling</span></code>/<code class="computeroutput"><span class="identifier">next_sibling</span></code> and other such functions for - iteration, pugixml additionally provides node and attribute iterators, so - that you can treat nodes as containers of other nodes or attributes: - </p> -<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">xml_node_iterator</span><span class="special">;</span> -<span class="keyword">class</span> <span class="identifier">xml_attribute_iterator</span><span class="special">;</span> - -<span class="keyword">typedef</span> <span class="identifier">xml_node_iterator</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">iterator</span><span class="special">;</span> -<span class="identifier">iterator</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">begin</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">iterator</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">end</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> - -<span class="keyword">typedef</span> <span class="identifier">xml_attribute_iterator</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">attribute_iterator</span><span class="special">;</span> -<span class="identifier">attribute_iterator</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">attributes_begin</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">attribute_iterator</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">attributes_end</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">begin</span></code> and <code class="computeroutput"><span class="identifier">attributes_begin</span></code> - return iterators that point to the first node/attribute, respectively; <code class="computeroutput"><span class="identifier">end</span></code> and <code class="computeroutput"><span class="identifier">attributes_end</span></code> - return past-the-end iterator for node/attribute list, respectively - this - iterator can't be dereferenced, but decrementing it results in an iterator - pointing to the last element in the list (except for empty lists, where decrementing - past-the-end iterator results in undefined behavior). Past-the-end iterator - is commonly used as a termination value for iteration loops (see sample below). - If you want to get an iterator that points to an existing handle, you can - construct the iterator with the handle as a single constructor argument, - like so: <code class="computeroutput"><span class="identifier">xml_node_iterator</span><span class="special">(</span><span class="identifier">node</span><span class="special">)</span></code>. - For <code class="computeroutput"><span class="identifier">xml_attribute_iterator</span></code>, - you'll have to provide both an attribute and its parent node. - </p> -<p> - <code class="computeroutput"><span class="identifier">begin</span></code> and <code class="computeroutput"><span class="identifier">end</span></code> - return equal iterators if called on null node; such iterators can't be dereferenced. - <code class="computeroutput"><span class="identifier">attributes_begin</span></code> and <code class="computeroutput"><span class="identifier">attributes_end</span></code> behave the same way. For - correct iterator usage this means that child node/attribute collections of - null nodes appear to be empty. - </p> -<p> - Both types of iterators have bidirectional iterator semantics (i.e. they - can be incremented and decremented, but efficient random access is not supported) - and support all usual iterator operations - comparison, dereference, etc. - The iterators are invalidated if the node/attribute objects they're pointing - to are removed from the tree; adding nodes/attributes does not invalidate - any iterators. - </p> -<p> - Here is an example of using iterators for document traversal (<a href="../samples/traverse_iter.cpp" target="_top">samples/traverse_iter.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node_iterator</span> <span class="identifier">it</span> <span class="special">=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span> <span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span> <span class="special">++</span><span class="identifier">it</span><span class="special">)</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool:"</span><span class="special">;</span> - - <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_attribute_iterator</span> <span class="identifier">ait</span> <span class="special">=</span> <span class="identifier">it</span><span class="special">-></span><span class="identifier">attributes_begin</span><span class="special">();</span> <span class="identifier">ait</span> <span class="special">!=</span> <span class="identifier">it</span><span class="special">-></span><span class="identifier">attributes_end</span><span class="special">();</span> <span class="special">++</span><span class="identifier">ait</span><span class="special">)</span> - <span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">" "</span> <span class="special"><<</span> <span class="identifier">ait</span><span class="special">-></span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"="</span> <span class="special"><<</span> <span class="identifier">ait</span><span class="special">-></span><span class="identifier">value</span><span class="special">();</span> - <span class="special">}</span> - - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -<div class="caution"><table border="0" summary="Caution"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="../images/caution.png"></td> -<th align="left">Caution</th> -</tr> -<tr><td align="left" valign="top"><p> - Node and attribute iterators are somewhere in the middle between const - and non-const iterators. While dereference operation yields a non-constant - reference to the object, so that you can use it for tree modification operations, - modifying this reference by assignment - i.e. passing iterators to a function - like <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">sort</span></code> - will not give expected results, - as assignment modifies local handle that's stored in the iterator. - </p></td></tr> -</table></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.access.walker"></a><a class="link" href="access.html#manual.access.walker" title="Recursive traversal with xml_tree_walker"> Recursive traversal with xml_tree_walker</a> -</h3></div></div></div> -<a name="xml_tree_walker"></a><p> - The methods described above allow traversal of immediate children of some - node; if you want to do a deep tree traversal, you'll have to do it via a - recursive function or some equivalent method. However, pugixml provides a - helper for depth-first traversal of a subtree. In order to use it, you have - to implement <code class="computeroutput"><span class="identifier">xml_tree_walker</span></code> - interface and to call <code class="computeroutput"><span class="identifier">traverse</span></code> - function: - </p> -<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">xml_tree_walker</span> -<span class="special">{</span> -<span class="keyword">public</span><span class="special">:</span> - <span class="keyword">virtual</span> <span class="keyword">bool</span> <span class="identifier">begin</span><span class="special">(</span><span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span> - <span class="keyword">virtual</span> <span class="keyword">bool</span> <span class="identifier">for_each</span><span class="special">(</span><span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">)</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> - <span class="keyword">virtual</span> <span class="keyword">bool</span> <span class="identifier">end</span><span class="special">(</span><span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span> - - <span class="keyword">int</span> <span class="identifier">depth</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="special">};</span> - -<span class="keyword">bool</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">traverse</span><span class="special">(</span><span class="identifier">xml_tree_walker</span><span class="special">&</span> <span class="identifier">walker</span><span class="special">);</span> -</pre> -<a name="xml_tree_walker::begin"></a><a name="xml_tree_walker::for_each"></a><a name="xml_tree_walker::end"></a><a name="xml_node::traverse"></a><p> - The traversal is launched by calling <code class="computeroutput"><span class="identifier">traverse</span></code> - function on traversal root and proceeds as follows: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - First, <code class="computeroutput"><span class="identifier">begin</span></code> function - is called with traversal root as its argument. - </li> -<li class="listitem"> - Then, <code class="computeroutput"><span class="identifier">for_each</span></code> function - is called for all nodes in the traversal subtree in depth first order, - excluding the traversal root. Node is passed as an argument. - </li> -<li class="listitem"> - Finally, <code class="computeroutput"><span class="identifier">end</span></code> function - is called with traversal root as its argument. - </li> -</ul></div> -<p> - If <code class="computeroutput"><span class="identifier">begin</span></code>, <code class="computeroutput"><span class="identifier">end</span></code> - or any of the <code class="computeroutput"><span class="identifier">for_each</span></code> calls - return <code class="computeroutput"><span class="keyword">false</span></code>, the traversal - is terminated and <code class="computeroutput"><span class="keyword">false</span></code> is returned - as the traversal result; otherwise, the traversal results in <code class="computeroutput"><span class="keyword">true</span></code>. Note that you don't have to override - <code class="computeroutput"><span class="identifier">begin</span></code> or <code class="computeroutput"><span class="identifier">end</span></code> - functions; their default implementations return <code class="computeroutput"><span class="keyword">true</span></code>. - </p> -<a name="xml_tree_walker::depth"></a><p> - You can get the node's depth relative to the traversal root at any point - by calling <code class="computeroutput"><span class="identifier">depth</span></code> function. - It returns <code class="computeroutput"><span class="special">-</span><span class="number">1</span></code> - if called from <code class="computeroutput"><span class="identifier">begin</span></code>/<code class="computeroutput"><span class="identifier">end</span></code>, and returns 0-based depth if called - from <code class="computeroutput"><span class="identifier">for_each</span></code> - depth is - 0 for all children of the traversal root, 1 for all grandchildren and so - on. - </p> -<p> - This is an example of traversing tree hierarchy with xml_tree_walker (<a href="../samples/traverse_walker.cpp" target="_top">samples/traverse_walker.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">simple_walker</span><span class="special">:</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_tree_walker</span> -<span class="special">{</span> - <span class="keyword">virtual</span> <span class="keyword">bool</span> <span class="identifier">for_each</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">)</span> - <span class="special">{</span> - <span class="keyword">for</span> <span class="special">(</span><span class="keyword">int</span> <span class="identifier">i</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> <span class="identifier">i</span> <span class="special"><</span> <span class="identifier">depth</span><span class="special">();</span> <span class="special">++</span><span class="identifier">i</span><span class="special">)</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">" "</span><span class="special">;</span> <span class="comment">// indentation -</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">node_types</span><span class="special">[</span><span class="identifier">node</span><span class="special">.</span><span class="identifier">type</span><span class="special">()]</span> <span class="special"><<</span> <span class="string">": name='"</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"', value='"</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"'\n"</span><span class="special">;</span> - - <span class="keyword">return</span> <span class="keyword">true</span><span class="special">;</span> <span class="comment">// continue traversal -</span> <span class="special">}</span> -<span class="special">};</span> -</pre> -<p> - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">simple_walker</span> <span class="identifier">walker</span><span class="special">;</span> -<span class="identifier">doc</span><span class="special">.</span><span class="identifier">traverse</span><span class="special">(</span><span class="identifier">walker</span><span class="special">);</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.access.predicate"></a><a class="link" href="access.html#manual.access.predicate" title="Searching for nodes/attributes with predicates"> Searching for nodes/attributes - with predicates</a> -</h3></div></div></div> -<a name="xml_node::find_attribute"></a><a name="xml_node::find_child"></a><a name="xml_node::find_node"></a><p> - While there are existing functions for getting a node/attribute with known - contents, they are often not sufficient for simple queries. As an alternative - for manual iteration through nodes/attributes until the needed one is found, - you can make a predicate and call one of <code class="computeroutput"><span class="identifier">find_</span></code> - functions: - </p> -<pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Predicate</span><span class="special">></span> <span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">find_attribute</span><span class="special">(</span><span class="identifier">Predicate</span> <span class="identifier">pred</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Predicate</span><span class="special">></span> <span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">find_child</span><span class="special">(</span><span class="identifier">Predicate</span> <span class="identifier">pred</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Predicate</span><span class="special">></span> <span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">find_node</span><span class="special">(</span><span class="identifier">Predicate</span> <span class="identifier">pred</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - The predicate should be either a plain function or a function object which - accepts one argument of type <code class="computeroutput"><span class="identifier">xml_attribute</span></code> - (for <code class="computeroutput"><span class="identifier">find_attribute</span></code>) or - <code class="computeroutput"><span class="identifier">xml_node</span></code> (for <code class="computeroutput"><span class="identifier">find_child</span></code> and <code class="computeroutput"><span class="identifier">find_node</span></code>), - and returns <code class="computeroutput"><span class="keyword">bool</span></code>. The predicate - is never called with null handle as an argument. - </p> -<p> - <code class="computeroutput"><span class="identifier">find_attribute</span></code> function iterates - through all attributes of the specified node, and returns the first attribute - for which the predicate returned <code class="computeroutput"><span class="keyword">true</span></code>. - If the predicate returned <code class="computeroutput"><span class="keyword">false</span></code> - for all attributes or if there were no attributes (including the case where - the node is null), null attribute is returned. - </p> -<p> - <code class="computeroutput"><span class="identifier">find_child</span></code> function iterates - through all child nodes of the specified node, and returns the first node - for which the predicate returned <code class="computeroutput"><span class="keyword">true</span></code>. - If the predicate returned <code class="computeroutput"><span class="keyword">false</span></code> - for all nodes or if there were no child nodes (including the case where the - node is null), null node is returned. - </p> -<p> - <code class="computeroutput"><span class="identifier">find_node</span></code> function performs - a depth-first traversal through the subtree of the specified node (excluding - the node itself), and returns the first node for which the predicate returned - <code class="computeroutput"><span class="keyword">true</span></code>. If the predicate returned - <code class="computeroutput"><span class="keyword">false</span></code> for all nodes or if subtree - was empty, null node is returned. - </p> -<p> - This is an example of using predicate-based functions (<a href="../samples/traverse_predicate.cpp" target="_top">samples/traverse_predicate.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">small_timeout</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span><span class="special">)</span> -<span class="special">{</span> - <span class="keyword">return</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Timeout"</span><span class="special">).</span><span class="identifier">as_int</span><span class="special">()</span> <span class="special"><</span> <span class="number">20</span><span class="special">;</span> -<span class="special">}</span> - -<span class="keyword">struct</span> <span class="identifier">allow_remote_predicate</span> -<span class="special">{</span> - <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_attribute</span> <span class="identifier">attr</span><span class="special">)</span> <span class="keyword">const</span> - <span class="special">{</span> - <span class="keyword">return</span> <span class="identifier">strcmp</span><span class="special">(</span><span class="identifier">attr</span><span class="special">.</span><span class="identifier">name</span><span class="special">(),</span> <span class="string">"AllowRemote"</span><span class="special">)</span> <span class="special">==</span> <span class="number">0</span><span class="special">;</span> - <span class="special">}</span> - - <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span><span class="special">)</span> <span class="keyword">const</span> - <span class="special">{</span> - <span class="keyword">return</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"AllowRemote"</span><span class="special">).</span><span class="identifier">as_bool</span><span class="special">();</span> - <span class="special">}</span> -<span class="special">};</span> -</pre> -<p> - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// Find child via predicate (looks for direct children only) -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">find_child</span><span class="special">(</span><span class="identifier">allow_remote_predicate</span><span class="special">()).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// Find node via predicate (looks for all descendants in depth-first order) -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">find_node</span><span class="special">(</span><span class="identifier">allow_remote_predicate</span><span class="special">()).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// Find attribute via predicate -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">last_child</span><span class="special">().</span><span class="identifier">find_attribute</span><span class="special">(</span><span class="identifier">allow_remote_predicate</span><span class="special">()).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// We can use simple functions instead of function objects -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">find_child</span><span class="special">(</span><span class="identifier">small_timeout</span><span class="special">).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.access.text"></a><a class="link" href="access.html#manual.access.text" title="Working with text contents"> Working with text contents</a> -</h3></div></div></div> -<a name="xml_text"></a><p> - It is common to store data as text contents of some node - i.e. <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">><</span><span class="identifier">description</span><span class="special">></span><span class="identifier">This</span> <span class="identifier">is</span> <span class="identifier">a</span> <span class="identifier">node</span><span class="special"></</span><span class="identifier">description</span><span class="special">></</span><span class="identifier">node</span><span class="special">></span></code>. - In this case, <code class="computeroutput"><span class="special"><</span><span class="identifier">description</span><span class="special">></span></code> node does not have a value, but instead - has a child of type <a class="link" href="dom.html#node_pcdata">node_pcdata</a> with value - <code class="computeroutput"><span class="string">"This is a node"</span></code>. pugixml - provides a special class, <code class="computeroutput"><span class="identifier">xml_text</span></code>, - to work with such data. Working with text objects to modify data is described - in <a class="link" href="modify.html#manual.modify.text" title="Working with text contents">the documentation for modifying document - data</a>; this section describes the access interface of <code class="computeroutput"><span class="identifier">xml_text</span></code>. - </p> -<a name="xml_node::text"></a><p> - You can get the text object from a node by using <code class="computeroutput"><span class="identifier">text</span><span class="special">()</span></code> method: - </p> -<pre class="programlisting"><span class="identifier">xml_text</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">text</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - If the node has a type <code class="computeroutput"><span class="identifier">node_pcdata</span></code> - or <code class="computeroutput"><span class="identifier">node_cdata</span></code>, then the node - itself is used to return data; otherwise, a first child node of type <code class="computeroutput"><span class="identifier">node_pcdata</span></code> or <code class="computeroutput"><span class="identifier">node_cdata</span></code> - is used. - </p> -<a name="xml_text::empty"></a><a name="xml_text::unspecified_bool_type"></a><p> - You can check if the text object is bound to a valid PCDATA/CDATA node by - using it as a boolean value, i.e. <code class="computeroutput"><span class="keyword">if</span> - <span class="special">(</span><span class="identifier">text</span><span class="special">)</span> <span class="special">{</span> <span class="special">...</span> - <span class="special">}</span></code> or <code class="computeroutput"><span class="keyword">if</span> - <span class="special">(!</span><span class="identifier">text</span><span class="special">)</span> <span class="special">{</span> <span class="special">...</span> - <span class="special">}</span></code>. Alternatively you can check it - by using the <code class="computeroutput"><span class="identifier">empty</span><span class="special">()</span></code> - method: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">empty</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<a name="xml_text::get"></a><p> - Given a text object, you can get the contents (i.e. the value of PCDATA/CDATA - node) by using the following function: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">get</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - In case text object is empty, the function returns an empty string - it never - returns a null pointer. - </p> -<a name="xml_text::as_string"></a><a name="xml_text::as_int"></a><a name="xml_text::as_uint"></a><a name="xml_text::as_double"></a><a name="xml_text::as_float"></a><a name="xml_text::as_bool"></a><a name="xml_text::as_llong"></a><a name="xml_text::as_ullong"></a><p> - If you need a non-empty string if the text object is empty, or if the text - contents is actually a number or a boolean that is stored as a string, you - can use the following accessors: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">as_string</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">def</span> <span class="special">=</span> <span class="string">""</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">int</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">as_int</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">as_uint</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">double</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">as_double</span><span class="special">(</span><span class="keyword">double</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">float</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">as_float</span><span class="special">(</span><span class="keyword">float</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">bool</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">as_bool</span><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">def</span> <span class="special">=</span> <span class="keyword">false</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">as_llong</span><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">as_ullong</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">def</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - All of the above functions have the same semantics as similar <code class="computeroutput"><span class="identifier">xml_attribute</span></code> members: they return the - default argument if the text object is empty, they convert the text contents - to a target type using the same rules and restrictions. You can <a class="link" href="access.html#xml_attribute::as_int">refer - to documentation for the attribute functions</a> for details. - </p> -<a name="xml_text::data"></a><p> - <code class="computeroutput"><span class="identifier">xml_text</span></code> is essentially a - helper class that operates on <code class="computeroutput"><span class="identifier">xml_node</span></code> - values. It is bound to a node of type <a class="link" href="dom.html#node_pcdata">node_pcdata</a> - or <a class="link" href="dom.html#node_cdata">node_cdata</a>. You can use the following - function to retrieve this node: - </p> -<pre class="programlisting"><span class="identifier">xml_node</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">data</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - Essentially, assuming <code class="computeroutput"><span class="identifier">text</span></code> - is an <code class="computeroutput"><span class="identifier">xml_text</span></code> object, calling - <code class="computeroutput"><span class="identifier">text</span><span class="special">.</span><span class="identifier">get</span><span class="special">()</span></code> is - equivalent to calling <code class="computeroutput"><span class="identifier">text</span><span class="special">.</span><span class="identifier">data</span><span class="special">().</span><span class="identifier">value</span><span class="special">()</span></code>. - </p> -<p> - This is an example of using <code class="computeroutput"><span class="identifier">xml_text</span></code> - object (<a href="../samples/text.cpp" target="_top">samples/text.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Project name: "</span> <span class="special"><<</span> <span class="identifier">project</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"name"</span><span class="special">).</span><span class="identifier">text</span><span class="special">().</span><span class="identifier">get</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Project version: "</span> <span class="special"><<</span> <span class="identifier">project</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"version"</span><span class="special">).</span><span class="identifier">text</span><span class="special">().</span><span class="identifier">as_double</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Project visibility: "</span> <span class="special"><<</span> <span class="special">(</span><span class="identifier">project</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"public"</span><span class="special">).</span><span class="identifier">text</span><span class="special">().</span><span class="identifier">as_bool</span><span class="special">(/*</span> <span class="identifier">def</span><span class="special">=</span> <span class="special">*/</span> <span class="keyword">true</span><span class="special">)</span> <span class="special">?</span> <span class="string">"public"</span> <span class="special">:</span> <span class="string">"private"</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Project description: "</span> <span class="special"><<</span> <span class="identifier">project</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"description"</span><span class="special">).</span><span class="identifier">text</span><span class="special">().</span><span class="identifier">get</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.access.misc"></a><a class="link" href="access.html#manual.access.misc" title="Miscellaneous functions"> Miscellaneous functions</a> -</h3></div></div></div> -<a name="xml_node::root"></a><p> - If you need to get the document root of some node, you can use the following - function: - </p> -<pre class="programlisting"><span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">root</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - This function returns the node with type <a class="link" href="dom.html#node_document">node_document</a>, - which is the root node of the document the node belongs to (unless the node - is null, in which case null node is returned). - </p> -<a name="xml_node::path"></a><a name="xml_node::first_element_by_path"></a><p> - While pugixml supports complex XPath expressions, sometimes a simple path - handling facility is needed. There are two functions, for getting node path - and for converting path to a node: - </p> -<pre class="programlisting"><span class="identifier">string_t</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">path</span><span class="special">(</span><span class="identifier">char_t</span> <span class="identifier">delimiter</span> <span class="special">=</span> <span class="char">'/'</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">first_element_by_path</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">path</span><span class="special">,</span> <span class="identifier">char_t</span> <span class="identifier">delimiter</span> <span class="special">=</span> <span class="char">'/'</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - Node paths consist of node names, separated with a delimiter (which is <code class="computeroutput"><span class="special">/</span></code> by default); also paths can contain self - (<code class="computeroutput"><span class="special">.</span></code>) and parent (<code class="computeroutput"><span class="special">..</span></code>) pseudo-names, so that this is a valid - path: <code class="computeroutput"><span class="string">"../../foo/./bar"</span></code>. - <code class="computeroutput"><span class="identifier">path</span></code> returns the path to - the node from the document root, <code class="computeroutput"><span class="identifier">first_element_by_path</span></code> - looks for a node represented by a given path; a path can be an absolute one - (absolute paths start with the delimiter), in which case the rest of the - path is treated as document root relative, and relative to the given node. - For example, in the following document: <code class="computeroutput"><span class="special"><</span><span class="identifier">a</span><span class="special">><</span><span class="identifier">b</span><span class="special">><</span><span class="identifier">c</span><span class="special">/></</span><span class="identifier">b</span><span class="special">></</span><span class="identifier">a</span><span class="special">></span></code>, - node <code class="computeroutput"><span class="special"><</span><span class="identifier">c</span><span class="special">/></span></code> has path <code class="computeroutput"><span class="string">"a/b/c"</span></code>; - calling <code class="computeroutput"><span class="identifier">first_element_by_path</span></code> - for document with path <code class="computeroutput"><span class="string">"a/b"</span></code> - results in node <code class="computeroutput"><span class="special"><</span><span class="identifier">b</span><span class="special">/></span></code>; calling <code class="computeroutput"><span class="identifier">first_element_by_path</span></code> - for node <code class="computeroutput"><span class="special"><</span><span class="identifier">a</span><span class="special">/></span></code> with path <code class="computeroutput"><span class="string">"../a/./b/../."</span></code> - results in node <code class="computeroutput"><span class="special"><</span><span class="identifier">a</span><span class="special">/></span></code>; calling <code class="computeroutput"><span class="identifier">first_element_by_path</span></code> - with path <code class="computeroutput"><span class="string">"/a"</span></code> results - in node <code class="computeroutput"><span class="special"><</span><span class="identifier">a</span><span class="special">/></span></code> for any node. - </p> -<p> - In case path component is ambiguous (if there are two nodes with given name), - the first one is selected; paths are not guaranteed to uniquely identify - nodes in a document. If any component of a path is not found, the result - of <code class="computeroutput"><span class="identifier">first_element_by_path</span></code> - is null node; also <code class="computeroutput"><span class="identifier">first_element_by_path</span></code> - returns null node for null nodes, in which case the path does not matter. - <code class="computeroutput"><span class="identifier">path</span></code> returns an empty string - for null nodes. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - <code class="computeroutput"><span class="identifier">path</span></code> function returns the - result as STL string, and thus is not available if <a class="link" href="install.html#PUGIXML_NO_STL">PUGIXML_NO_STL</a> - is defined. - </p></td></tr> -</table></div> -<a name="xml_node::offset_debug"></a><p> - pugixml does not record row/column information for nodes upon parsing for - efficiency reasons. However, if the node has not changed in a significant - way since parsing (the name/value are not changed, and the node itself is - the original one, i.e. it was not deleted from the tree and re-added later), - it is possible to get the offset from the beginning of XML buffer: - </p> -<pre class="programlisting"><span class="identifier">ptrdiff_t</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">offset_debug</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - If the offset is not available (this happens if the node is null, was not - originally parsed from a stream, or has changed in a significant way), the - function returns -1. Otherwise it returns the offset to node's data from - the beginning of XML buffer in <a class="link" href="dom.html#char_t">pugi::char_t</a> - units. For more information on parsing offsets, see <a class="link" href="loading.html#xml_parse_result::offset">parsing - error handling documentation</a>. - </p> -</div> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2014 Arseny Kapoulkine<p> - Distributed under the MIT License - </p> -</div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <b>Accessing</b> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="loading.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="modify.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -</body> -</html> diff --git a/docs/manual/apiref.html b/docs/manual/apiref.html deleted file mode 100644 index 04f8990..0000000 --- a/docs/manual/apiref.html +++ /dev/null @@ -1,1678 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>API Reference</title> -<link rel="stylesheet" href="../pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../manual.html" title="pugixml 1.6"> -<link rel="up" href="../manual.html" title="pugixml 1.6"> -<link rel="prev" href="changes.html" title="Changelog"> -<link rel="next" href="toc.html" title="Table of Contents"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <b>API Reference</b> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="changes.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="toc.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -<hr> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.apiref"></a><a class="link" href="apiref.html" title="API Reference"> API Reference</a> -</h2></div></div></div> -<p> - This is the reference for all macros, types, enumerations, classes and functions - in pugixml. Each symbol is a link that leads to the relevant section of the - manual. - </p> -<p> - Macros: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_WCHAR_MODE">PUGIXML_WCHAR_MODE</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_NO_XPATH">PUGIXML_NO_XPATH</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_NO_STL">PUGIXML_NO_STL</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_NO_EXCEPTIONS">PUGIXML_NO_EXCEPTIONS</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_API">PUGIXML_API</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_CLASS">PUGIXML_CLASS</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_FUNCTION">PUGIXML_FUNCTION</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_MEMORY_PAGE_SIZE">PUGIXML_MEMORY_PAGE_SIZE</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_MEMORY_OUTPUT_STACK">PUGIXML_MEMORY_OUTPUT_STACK</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_MEMORY_XPATH_PAGE_SIZE">PUGIXML_MEMORY_XPATH_PAGE_SIZE</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_HEADER_ONLY">PUGIXML_HEADER_ONLY</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="preprocessor">#define</span> </code><a class="link" href="install.html#PUGIXML_HAS_LONG_LONG">PUGIXML_HAS_LONG_LONG</a> - </li> -</ul></div> -<p> - Types: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">typedef</span> </code><span class="emphasis"><em>configuration-defined - type</em></span><code class="computeroutput"> </code><a class="link" href="dom.html#char_t">char_t</a><code class="computeroutput"><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">typedef</span> </code><span class="emphasis"><em>configuration-defined - type</em></span><code class="computeroutput"> </code><a class="link" href="dom.html#string_t">string_t</a><code class="computeroutput"><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">typedef</span> <span class="keyword">void</span><span class="special">*</span> <span class="special">(*</span></code><a class="link" href="dom.html#allocation_function">allocation_function</a><code class="computeroutput"><span class="special">)(</span><span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">typedef</span> <span class="keyword">void</span> - <span class="special">(*</span></code><a class="link" href="dom.html#deallocation_function">deallocation_function</a><code class="computeroutput"><span class="special">)(</span><span class="keyword">void</span><span class="special">*</span> - <span class="identifier">ptr</span><span class="special">);</span></code> - </li> -</ul></div> -<p> - Enumerations: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">enum</span> </code><a class="link" href="dom.html#xml_node_type">xml_node_type</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="dom.html#node_null">node_null</a> - </li> -<li class="listitem"> - <a class="link" href="dom.html#node_document">node_document</a> - </li> -<li class="listitem"> - <a class="link" href="dom.html#node_element">node_element</a> - </li> -<li class="listitem"> - <a class="link" href="dom.html#node_pcdata">node_pcdata</a> - </li> -<li class="listitem"> - <a class="link" href="dom.html#node_cdata">node_cdata</a> - </li> -<li class="listitem"> - <a class="link" href="dom.html#node_comment">node_comment</a> - </li> -<li class="listitem"> - <a class="link" href="dom.html#node_pi">node_pi</a> - </li> -<li class="listitem"> - <a class="link" href="dom.html#node_declaration">node_declaration</a> - </li> -<li class="listitem"> - <a class="link" href="dom.html#node_doctype">node_doctype</a> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">enum</span> </code><a class="link" href="loading.html#xml_parse_status">xml_parse_status</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="loading.html#status_ok">status_ok</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_file_not_found">status_file_not_found</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_io_error">status_io_error</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_out_of_memory">status_out_of_memory</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_internal_error">status_internal_error</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_unrecognized_tag">status_unrecognized_tag</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_bad_pi">status_bad_pi</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_bad_comment">status_bad_comment</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_bad_cdata">status_bad_cdata</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_bad_doctype">status_bad_doctype</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_bad_pcdata">status_bad_pcdata</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_bad_start_element">status_bad_start_element</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_bad_attribute">status_bad_attribute</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_bad_end_element">status_bad_end_element</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_end_element_mismatch">status_end_element_mismatch</a> - </li> -<li class="listitem"> - <a class="link" href="modify.html#status_append_invalid_root">status_append_invalid_root</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#status_no_document_element">status_no_document_element</a> - <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">enum</span> </code><a class="link" href="loading.html#xml_encoding">xml_encoding</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="loading.html#encoding_auto">encoding_auto</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#encoding_utf8">encoding_utf8</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#encoding_utf16_le">encoding_utf16_le</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#encoding_utf16_be">encoding_utf16_be</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#encoding_utf16">encoding_utf16</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#encoding_utf32_le">encoding_utf32_le</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#encoding_utf32_be">encoding_utf32_be</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#encoding_utf32">encoding_utf32</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#encoding_wchar">encoding_wchar</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#encoding_latin1">encoding_latin1</a> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">enum</span> </code><a class="link" href="xpath.html#xpath_value_type">xpath_value_type</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="xpath.html#xpath_type_none">xpath_type_none</a> - </li> -<li class="listitem"> - <a class="link" href="xpath.html#xpath_type_node_set">xpath_type_node_set</a> - </li> -<li class="listitem"> - <a class="link" href="xpath.html#xpath_type_number">xpath_type_number</a> - </li> -<li class="listitem"> - <a class="link" href="xpath.html#xpath_type_string">xpath_type_string</a> - </li> -<li class="listitem"> - <a class="link" href="xpath.html#xpath_type_boolean">xpath_type_boolean</a> - </li> -</ul></div> - </li> -</ul></div> -<p> - Constants: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Formatting options bit flags: - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="saving.html#format_default">format_default</a> - </li> -<li class="listitem"> - <a class="link" href="saving.html#format_indent">format_indent</a> - </li> -<li class="listitem"> - <a class="link" href="saving.html#format_no_declaration">format_no_declaration</a> - </li> -<li class="listitem"> - <a class="link" href="saving.html#format_no_escapes">format_no_escapes</a> - </li> -<li class="listitem"> - <a class="link" href="saving.html#format_raw">format_raw</a> - </li> -<li class="listitem"> - <a class="link" href="saving.html#format_save_file_text">format_save_file_text</a> - </li> -<li class="listitem"> - <a class="link" href="saving.html#format_write_bom">format_write_bom</a> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - Parsing options bit flags: - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="loading.html#parse_cdata">parse_cdata</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_comments">parse_comments</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_declaration">parse_declaration</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_default">parse_default</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_doctype">parse_doctype</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_eol">parse_eol</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_escapes">parse_escapes</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_fragment">parse_fragment</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_full">parse_full</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_minimal">parse_minimal</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_pi">parse_pi</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_trim_pcdata">parse_trim_pcdata</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_ws_pcdata">parse_ws_pcdata</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_ws_pcdata_single">parse_ws_pcdata_single</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_wconv_attribute">parse_wconv_attribute</a> - </li> -<li class="listitem"> - <a class="link" href="loading.html#parse_wnorm_attribute">parse_wnorm_attribute</a> - </li> -</ul></div> - </li> -</ul></div> -<p> - Classes: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="dom.html#xml_attribute">xml_attribute</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="dom.html#xml_attribute::ctor">xml_attribute</a><code class="computeroutput"><span class="special">();</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_attribute::empty">empty</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">operator</span> </code><a class="link" href="dom.html#xml_attribute::unspecified_bool_type">unspecified_bool_type</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_attribute::comparison">operator==</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_attribute::comparison">operator!=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_attribute::comparison">operator<</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_attribute::comparison">operator></a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_attribute::comparison">operator<=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_attribute::comparison">operator>=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">size_t</span> </code><a class="link" href="dom.html#xml_attribute::hash_value">hash_value</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="access.html#xml_attribute::next_attribute">next_attribute</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="access.html#xml_attribute::previous_attribute">previous_attribute</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="access.html#xml_attribute::name">name</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="access.html#xml_attribute::value">value</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="access.html#xml_attribute::as_string">as_string</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">def</span> <span class="special">=</span> - <span class="string">""</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">int</span> </code><a class="link" href="access.html#xml_attribute::as_int">as_int</a><code class="computeroutput"><span class="special">(</span><span class="keyword">int</span> <span class="identifier">def</span> <span class="special">=</span> - <span class="number">0</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">unsigned</span> <span class="keyword">int</span> - </code><a class="link" href="access.html#xml_attribute::as_uint">as_uint</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">def</span> - <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">double</span> </code><a class="link" href="access.html#xml_attribute::as_double">as_double</a><code class="computeroutput"><span class="special">(</span><span class="keyword">double</span> - <span class="identifier">def</span> <span class="special">=</span> - <span class="number">0</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">float</span> </code><a class="link" href="access.html#xml_attribute::as_float">as_float</a><code class="computeroutput"><span class="special">(</span><span class="keyword">float</span> <span class="identifier">def</span> <span class="special">=</span> - <span class="number">0</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="access.html#xml_attribute::as_bool">as_bool</a><code class="computeroutput"><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">def</span> <span class="special">=</span> - <span class="keyword">false</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">long</span> <span class="keyword">long</span> - </code><a class="link" href="access.html#xml_attribute::as_llong">as_llong</a><code class="computeroutput"><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">def</span> - <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">unsigned</span> <span class="keyword">long</span> - <span class="keyword">long</span> </code><a class="link" href="access.html#xml_attribute::as_ullong">as_ullong</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">long</span> <span class="keyword">long</span> - <span class="identifier">def</span> <span class="special">=</span> - <span class="number">0</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_attribute::set_name">set_name</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_attribute::set_value">set_value</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_attribute::set_value">set_value</a><code class="computeroutput"><span class="special">(</span><span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_attribute::set_value">set_value</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_attribute::set_value">set_value</a><code class="computeroutput"><span class="special">(</span><span class="keyword">double</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_attribute::set_value">set_value</a><code class="computeroutput"><span class="special">(</span><span class="keyword">float</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_attribute::set_value">set_value</a><code class="computeroutput"><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_attribute::set_value">set_value</a><code class="computeroutput"><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_attribute::set_value">set_value</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">long</span> <span class="keyword">long</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_attribute::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_attribute::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_attribute::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_attribute::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">double</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_attribute::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">float</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_attribute::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_attribute::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_attribute::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="identifier">unsnigned</span> - <span class="keyword">long</span> <span class="keyword">long</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="dom.html#xml_node">xml_node</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="dom.html#xml_node::ctor">xml_node</a><code class="computeroutput"><span class="special">();</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_node::empty">empty</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">operator</span> </code><a class="link" href="dom.html#xml_node::unspecified_bool_type">unspecified_bool_type</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_node::comparison">operator==</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_node::comparison">operator!=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_node::comparison">operator<</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_node::comparison">operator></a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_node::comparison">operator<=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="dom.html#xml_node::comparison">operator>=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">r</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">size_t</span> </code><a class="link" href="dom.html#xml_node::hash_value">hash_value</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node_type</span> </code><a class="link" href="dom.html#xml_node::type">type</a><code class="computeroutput"><span class="special">()</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="access.html#xml_node::name">name</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="access.html#xml_node::value">value</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::parent">parent</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::first_child">first_child</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::last_child">last_child</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::next_sibling">next_sibling</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::previous_sibling">previous_sibling</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="access.html#xml_node::first_attribute">first_attribute</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="access.html#xml_node::last_attribute">last_attribute</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <span class="emphasis"><em>implementation-defined type</em></span> <a class="link" href="access.html#xml_node::children">children</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <span class="emphasis"><em>implementation-defined type</em></span> <a class="link" href="access.html#xml_node::children">children</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <span class="emphasis"><em>implementation-defined type</em></span> <a class="link" href="access.html#xml_node::attributes">attributes</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::child">child</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="access.html#xml_node::attribute">attribute</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::next_sibling_name">next_sibling</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::previous_sibling_name">previous_sibling</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::find_child_by_attribute">find_child_by_attribute</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">attr_name</span><span class="special">,</span> <span class="keyword">const</span> - <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">attr_value</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::find_child_by_attribute">find_child_by_attribute</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">attr_name</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">attr_value</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="access.html#xml_node::child_value">child_value</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="access.html#xml_node::child_value">child_value</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_text</span> </code><a class="link" href="access.html#xml_node::text">text</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">typedef</span> <span class="identifier">xml_node_iterator</span> - </code><a class="link" href="access.html#xml_node_iterator">iterator</a><code class="computeroutput"><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">iterator</span> </code><a class="link" href="access.html#xml_node::begin">begin</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">iterator</span> </code><a class="link" href="access.html#xml_node::end">end</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">typedef</span> <span class="identifier">xml_attribute_iterator</span> - </code><a class="link" href="access.html#xml_attribute_iterator">attribute_iterator</a><code class="computeroutput"><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">attribute_iterator</span> </code><a class="link" href="access.html#xml_node::attributes_begin">attributes_begin</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">attribute_iterator</span> </code><a class="link" href="access.html#xml_node::attributes_end">attributes_end</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="access.html#xml_node::traverse">traverse</a><code class="computeroutput"><span class="special">(</span><span class="identifier">xml_tree_walker</span><span class="special">&</span> <span class="identifier">walker</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Predicate</span><span class="special">></span> <span class="identifier">xml_attribute</span> - </code><a class="link" href="access.html#xml_node::find_attribute">find_attribute</a><code class="computeroutput"><span class="special">(</span><span class="identifier">Predicate</span> - <span class="identifier">pred</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Predicate</span><span class="special">></span> <span class="identifier">xml_node</span> - </code><a class="link" href="access.html#xml_node::find_child">find_child</a><code class="computeroutput"><span class="special">(</span><span class="identifier">Predicate</span> - <span class="identifier">pred</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Predicate</span><span class="special">></span> <span class="identifier">xml_node</span> - </code><a class="link" href="access.html#xml_node::find_node">find_node</a><code class="computeroutput"><span class="special">(</span><span class="identifier">Predicate</span> - <span class="identifier">pred</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">string_t</span> </code><a class="link" href="access.html#xml_node::path">path</a><code class="computeroutput"><span class="special">(</span><span class="identifier">char_t</span> - <span class="identifier">delimiter</span> <span class="special">=</span> - <span class="char">'/'</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::first_element_by_path">xml_node::first_element_by_path</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">path</span><span class="special">,</span> - <span class="identifier">char_t</span> <span class="identifier">delimiter</span> - <span class="special">=</span> <span class="char">'/'</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_node::root">root</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">ptrdiff_t</span> </code><a class="link" href="access.html#xml_node::offset_debug">offset_debug</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_node::set_name">set_name</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_node::set_value">set_value</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="modify.html#xml_node::append_attribute">append_attribute</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="modify.html#xml_node::prepend_attribute">prepend_attribute</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="modify.html#xml_node::insert_attribute_after">insert_attribute_after</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">attr</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="modify.html#xml_node::insert_attribute_before">insert_attribute_before</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">attr</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::append_child">append_child</a><code class="computeroutput"><span class="special">(</span><span class="identifier">xml_node_type</span> - <span class="identifier">type</span> <span class="special">=</span> - <span class="identifier">node_element</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::prepend_child">prepend_child</a><code class="computeroutput"><span class="special">(</span><span class="identifier">xml_node_type</span> - <span class="identifier">type</span> <span class="special">=</span> - <span class="identifier">node_element</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::insert_child_after">insert_child_after</a><code class="computeroutput"><span class="special">(</span><span class="identifier">xml_node_type</span> - <span class="identifier">type</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::insert_child_before">insert_child_before</a><code class="computeroutput"><span class="special">(</span><span class="identifier">xml_node_type</span> - <span class="identifier">type</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::append_child">append_child</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::prepend_child">prepend_child</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::insert_child_after">insert_child_after</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::insert_child_before">insert_child_before</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="modify.html#xml_node::append_copy">append_copy</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">proto</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="modify.html#xml_node::prepend_copy">prepend_copy</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> - <span class="identifier">proto</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="modify.html#xml_node::insert_copy_after">insert_copy_after</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> - <span class="identifier">proto</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">attr</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="modify.html#xml_node::insert_copy_before">insert_copy_before</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> - <span class="identifier">proto</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">attr</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::append_copy">append_copy</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">proto</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::prepend_copy">prepend_copy</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">proto</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::insert_copy_after">insert_copy_after</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">proto</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::insert_copy_before">insert_copy_before</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">proto</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::append_move">append_move</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">moved</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::prepend_move">prepend_move</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">moved</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::insert_move_after">insert_move_after</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">moved</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="modify.html#xml_node::insert_move_before">insert_move_before</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">moved</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_node::remove_attribute">remove_attribute</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> - <span class="identifier">a</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_node::remove_attribute">remove_attribute</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_node::remove_child">remove_child</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">n</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_node::remove_child">remove_child</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_parse_result</span> </code><a class="link" href="modify.html#xml_node::append_buffer">append_buffer</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="keyword">void</span><span class="special">*</span> <span class="identifier">contents</span><span class="special">,</span> - <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">,</span> <span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">options</span> - <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> - <span class="identifier">encoding</span> <span class="special">=</span> - <span class="identifier">encoding_auto</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">void</span> </code><a class="link" href="saving.html#xml_node::print">print</a><code class="computeroutput"><span class="special">(</span><span class="identifier">xml_writer</span><span class="special">&</span> <span class="identifier">writer</span><span class="special">,</span> <span class="keyword">const</span> - <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">indent</span> <span class="special">=</span> - <span class="string">"\t"</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">flags</span> <span class="special">=</span> - <span class="identifier">format_default</span><span class="special">,</span> - <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> - <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">,</span> <span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">depth</span> - <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">void</span> </code><a class="link" href="saving.html#xml_node::print_stream">print</a><code class="computeroutput"><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span><span class="special">&</span> <span class="identifier">os</span><span class="special">,</span> <span class="keyword">const</span> - <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">indent</span> <span class="special">=</span> - <span class="string">"\t"</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">flags</span> <span class="special">=</span> - <span class="identifier">format_default</span><span class="special">,</span> - <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> - <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">,</span> <span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">depth</span> - <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">void</span> </code><a class="link" href="saving.html#xml_node::print_stream">print</a><code class="computeroutput"><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wostream</span><span class="special">&</span> <span class="identifier">os</span><span class="special">,</span> <span class="keyword">const</span> - <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">indent</span> <span class="special">=</span> - <span class="string">"\t"</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">flags</span> <span class="special">=</span> - <span class="identifier">format_default</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">depth</span> <span class="special">=</span> - <span class="number">0</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_node</span> </code><a class="link" href="xpath.html#xml_node::select_node">select_node</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">query</span><span class="special">,</span> <span class="identifier">xpath_variable_set</span><span class="special">*</span> <span class="identifier">variables</span> - <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_node</span> </code><a class="link" href="xpath.html#xml_node::select_node_precomp">select_node</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_query</span><span class="special">&</span> - <span class="identifier">query</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_node_set</span> </code><a class="link" href="xpath.html#xml_node::select_nodes">select_nodes</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">query</span><span class="special">,</span> - <span class="identifier">xpath_variable_set</span><span class="special">*</span> - <span class="identifier">variables</span> <span class="special">=</span> - <span class="number">0</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_node_set</span> </code><a class="link" href="xpath.html#xml_node::select_nodes_precomp">select_nodes</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_query</span><span class="special">&</span> - <span class="identifier">query</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="dom.html#xml_document">xml_document</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="dom.html#xml_document::ctor">xml_document</a><code class="computeroutput"><span class="special">();</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="special">~</span></code><a class="link" href="dom.html#xml_document::dtor">xml_document</a><code class="computeroutput"><span class="special">();</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">void</span> </code><a class="link" href="dom.html#xml_document::reset">reset</a><code class="computeroutput"><span class="special">();</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">void</span> </code><a class="link" href="dom.html#xml_document::reset">reset</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_document</span><span class="special">&</span> - <span class="identifier">proto</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_parse_result</span> </code><a class="link" href="loading.html#xml_document::load_stream">load</a><code class="computeroutput"><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">istream</span><span class="special">&</span> - <span class="identifier">stream</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">options</span> <span class="special">=</span> - <span class="identifier">parse_default</span><span class="special">,</span> - <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> - <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_parse_result</span> </code><a class="link" href="loading.html#xml_document::load_stream">load</a><code class="computeroutput"><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wistream</span><span class="special">&</span> - <span class="identifier">stream</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">options</span> <span class="special">=</span> - <span class="identifier">parse_default</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_parse_result</span> </code><a class="link" href="loading.html#xml_document::load_string">load_string</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">contents</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">options</span> <span class="special">=</span> - <span class="identifier">parse_default</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_parse_result</span> </code><a class="link" href="loading.html#xml_document::load_file">load_file</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">path</span><span class="special">,</span> <span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">options</span> - <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> - <span class="identifier">encoding</span> <span class="special">=</span> - <span class="identifier">encoding_auto</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_parse_result</span> </code><a class="link" href="loading.html#xml_document::load_file_wide">load_file</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="keyword">wchar_t</span><span class="special">*</span> - <span class="identifier">path</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">options</span> <span class="special">=</span> - <span class="identifier">parse_default</span><span class="special">,</span> - <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> - <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_parse_result</span> </code><a class="link" href="loading.html#xml_document::load_buffer">load_buffer</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="keyword">void</span><span class="special">*</span> <span class="identifier">contents</span><span class="special">,</span> - <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">,</span> <span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">options</span> - <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> - <span class="identifier">encoding</span> <span class="special">=</span> - <span class="identifier">encoding_auto</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_parse_result</span> </code><a class="link" href="loading.html#xml_document::load_buffer_inplace">load_buffer_inplace</a><code class="computeroutput"><span class="special">(</span><span class="keyword">void</span><span class="special">*</span> <span class="identifier">contents</span><span class="special">,</span> <span class="identifier">size_t</span> - <span class="identifier">size</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">options</span> <span class="special">=</span> - <span class="identifier">parse_default</span><span class="special">,</span> - <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> - <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_parse_result</span> </code><a class="link" href="loading.html#xml_document::load_buffer_inplace_own">load_buffer_inplace_own</a><code class="computeroutput"><span class="special">(</span><span class="keyword">void</span><span class="special">*</span> <span class="identifier">contents</span><span class="special">,</span> <span class="identifier">size_t</span> - <span class="identifier">size</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">options</span> <span class="special">=</span> - <span class="identifier">parse_default</span><span class="special">,</span> - <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> - <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="saving.html#xml_document::save_file">save_file</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">path</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">indent</span> - <span class="special">=</span> <span class="string">"\t"</span><span class="special">,</span> <span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">flags</span> - <span class="special">=</span> <span class="identifier">format_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> - <span class="identifier">encoding</span> <span class="special">=</span> - <span class="identifier">encoding_auto</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="saving.html#xml_document::save_file_wide">save_file</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="keyword">wchar_t</span><span class="special">*</span> - <span class="identifier">path</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">indent</span> - <span class="special">=</span> <span class="string">"\t"</span><span class="special">,</span> <span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">flags</span> - <span class="special">=</span> <span class="identifier">format_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> - <span class="identifier">encoding</span> <span class="special">=</span> - <span class="identifier">encoding_auto</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">void</span> </code><a class="link" href="saving.html#xml_document::save_stream">save</a><code class="computeroutput"><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span><span class="special">&</span> <span class="identifier">stream</span><span class="special">,</span> <span class="keyword">const</span> - <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">indent</span> <span class="special">=</span> - <span class="string">"\t"</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">flags</span> <span class="special">=</span> - <span class="identifier">format_default</span><span class="special">,</span> - <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> - <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">void</span> </code><a class="link" href="saving.html#xml_document::save_stream">save</a><code class="computeroutput"><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wostream</span><span class="special">&</span> <span class="identifier">stream</span><span class="special">,</span> <span class="keyword">const</span> - <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">indent</span> <span class="special">=</span> - <span class="string">"\t"</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">flags</span> <span class="special">=</span> - <span class="identifier">format_default</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">void</span> </code><a class="link" href="saving.html#xml_document::save">save</a><code class="computeroutput"><span class="special">(</span><span class="identifier">xml_writer</span><span class="special">&</span> <span class="identifier">writer</span><span class="special">,</span> <span class="keyword">const</span> - <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">indent</span> <span class="special">=</span> - <span class="string">"\t"</span><span class="special">,</span> - <span class="keyword">unsigned</span> <span class="keyword">int</span> - <span class="identifier">flags</span> <span class="special">=</span> - <span class="identifier">format_default</span><span class="special">,</span> - <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> - <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="dom.html#xml_document::document_element">document_element</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">struct</span> </code><a class="link" href="loading.html#xml_parse_result">xml_parse_result</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_parse_status</span> </code><a class="link" href="loading.html#xml_parse_result::status">status</a><code class="computeroutput"><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">ptrdiff_t</span> </code><a class="link" href="loading.html#xml_parse_result::offset">offset</a><code class="computeroutput"><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_encoding</span> </code><a class="link" href="loading.html#xml_parse_result::encoding">encoding</a><code class="computeroutput"><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">operator</span> </code><a class="link" href="loading.html#xml_parse_result::bool">bool</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> </code><a class="link" href="loading.html#xml_parse_result::description">description</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="access.html#xml_node_iterator">xml_node_iterator</a> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="access.html#xml_attribute_iterator">xml_attribute_iterator</a> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="access.html#xml_tree_walker">xml_tree_walker</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">virtual</span> <span class="keyword">bool</span> - </code><a class="link" href="access.html#xml_tree_walker::begin">begin</a><code class="computeroutput"><span class="special">(</span><span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">virtual</span> <span class="keyword">bool</span> - </code><a class="link" href="access.html#xml_tree_walker::for_each">for_each</a><code class="computeroutput"><span class="special">(</span><span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">)</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">virtual</span> <span class="keyword">bool</span> - </code><a class="link" href="access.html#xml_tree_walker::end">end</a><code class="computeroutput"><span class="special">(</span><span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">int</span> </code><a class="link" href="access.html#xml_tree_walker::depth">depth</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="access.html#xml_text">xml_text</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="access.html#xml_text::empty">empty</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">operator</span> </code><a class="link" href="access.html#xml_text::unspecified_bool_type">xml_text::unspecified_bool_type</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="access.html#xml_text::get">xml_text::get</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="access.html#xml_text::as_string">as_string</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">def</span> <span class="special">=</span> - <span class="string">""</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">int</span> </code><a class="link" href="access.html#xml_text::as_int">as_int</a><code class="computeroutput"><span class="special">(</span><span class="keyword">int</span> <span class="identifier">def</span> <span class="special">=</span> - <span class="number">0</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">unsigned</span> <span class="keyword">int</span> - </code><a class="link" href="access.html#xml_text::as_uint">as_uint</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">def</span> - <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">double</span> </code><a class="link" href="access.html#xml_text::as_double">as_double</a><code class="computeroutput"><span class="special">(</span><span class="keyword">double</span> - <span class="identifier">def</span> <span class="special">=</span> - <span class="number">0</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">float</span> </code><a class="link" href="access.html#xml_text::as_float">as_float</a><code class="computeroutput"><span class="special">(</span><span class="keyword">float</span> <span class="identifier">def</span> <span class="special">=</span> - <span class="number">0</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="access.html#xml_text::as_bool">as_bool</a><code class="computeroutput"><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">def</span> <span class="special">=</span> - <span class="keyword">false</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">long</span> <span class="keyword">long</span> - </code><a class="link" href="access.html#xml_text::as_llong">as_llong</a><code class="computeroutput"><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">def</span> - <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">unsigned</span> <span class="keyword">long</span> - <span class="keyword">long</span> </code><a class="link" href="access.html#xml_text::as_ullong">as_ullong</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">long</span> <span class="keyword">long</span> - <span class="identifier">def</span> <span class="special">=</span> - <span class="number">0</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_text::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_text::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_text::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_text::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">double</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_text::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">float</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_text::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_text::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="modify.html#xml_text::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">long</span> <span class="keyword">long</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_text</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_text::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_text</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_text::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_text</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_text::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_text</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_text::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">double</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_text</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_text::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">float</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_text</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_text::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_text</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_text::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_text</span><span class="special">&</span> - </code><a class="link" href="modify.html#xml_text::assign">operator=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">unsigned</span> - <span class="keyword">long</span> <span class="keyword">long</span> - <span class="identifier">rhs</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="access.html#xml_text::data">data</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="saving.html#xml_writer">xml_writer</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"> - <code class="computeroutput"><span class="keyword">virtual</span> <span class="keyword">void</span> - </code><a class="link" href="saving.html#xml_writer::write">write</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="keyword">void</span><span class="special">*</span> <span class="identifier">data</span><span class="special">,</span> - <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">)</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span></code> - <br><br> - - </li></ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="saving.html#xml_writer_file">xml_writer_file</a><code class="computeroutput"><span class="special">:</span> <span class="keyword">public</span> <span class="identifier">xml_writer</span></code> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"> - <a class="link" href="saving.html#xml_writer_file">xml_writer_file</a><code class="computeroutput"><span class="special">(</span><span class="keyword">void</span><span class="special">*</span> <span class="identifier">file</span><span class="special">);</span></code> <br><br> - - </li></ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="saving.html#xml_writer_stream">xml_writer_stream</a><code class="computeroutput"><span class="special">:</span> <span class="keyword">public</span> <span class="identifier">xml_writer</span></code> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="saving.html#xml_writer_stream">xml_writer_stream</a><code class="computeroutput"><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span><span class="special">&</span> <span class="identifier">stream</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <a class="link" href="saving.html#xml_writer_stream">xml_writer_stream</a><code class="computeroutput"><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wostream</span><span class="special">&</span> <span class="identifier">stream</span><span class="special">);</span></code> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">struct</span> </code><a class="link" href="xpath.html#xpath_parse_result">xpath_parse_result</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> </code><a class="link" href="xpath.html#xpath_parse_result::error">error</a><code class="computeroutput"><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">ptrdiff_t</span> </code><a class="link" href="xpath.html#xpath_parse_result::offset">offset</a><code class="computeroutput"><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">operator</span> </code><a class="link" href="xpath.html#xpath_parse_result::bool">bool</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> </code><a class="link" href="xpath.html#xpath_parse_result::description">description</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="xpath.html#xpath_query">xpath_query</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">explicit</span> </code><a class="link" href="xpath.html#xpath_query::ctor">xpath_query</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">query</span><span class="special">,</span> - <span class="identifier">xpath_variable_set</span><span class="special">*</span> - <span class="identifier">variables</span> <span class="special">=</span> - <span class="number">0</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_query::evaluate_boolean">evaluate_boolean</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> - <span class="identifier">n</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">double</span> </code><a class="link" href="xpath.html#xpath_query::evaluate_number">evaluate_number</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> - <span class="identifier">n</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">string_t</span> </code><a class="link" href="xpath.html#xpath_query::evaluate_string">evaluate_string</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> - <span class="identifier">n</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">size_t</span> </code><a class="link" href="xpath.html#xpath_query::evaluate_string_buffer">evaluate_string</a><code class="computeroutput"><span class="special">(</span><span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">buffer</span><span class="special">,</span> <span class="identifier">size_t</span> - <span class="identifier">capacity</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_node_set</span> </code><a class="link" href="xpath.html#xpath_query::evaluate_node_set">evaluate_node_set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> - <span class="identifier">n</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_node</span> </code><a class="link" href="xpath.html#xpath_query::evaluate_node">evaluate_node</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> - <span class="identifier">n</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_value_type</span> </code><a class="link" href="xpath.html#xpath_query::return_type">return_type</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">xpath_parse_result</span><span class="special">&</span> </code><a class="link" href="xpath.html#xpath_query::result">result</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">operator</span> </code><a class="link" href="xpath.html#xpath_query::unspecified_bool_type">unspecified_bool_type</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="xpath.html#xpath_exception">xpath_exception</a><code class="computeroutput"><span class="special">:</span> <span class="keyword">public</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">exception</span></code> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">virtual</span> <span class="keyword">const</span> - <span class="keyword">char</span><span class="special">*</span> - </code><a class="link" href="xpath.html#xpath_exception::what">what</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span> - <span class="keyword">throw</span><span class="special">();</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">xpath_parse_result</span><span class="special">&</span> </code><a class="link" href="xpath.html#xpath_exception::result">result</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="xpath.html#xpath_node">xpath_node</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="xpath.html#xpath_node::ctor">xpath_node</a><code class="computeroutput"><span class="special">();</span></code> - </li> -<li class="listitem"> - <a class="link" href="xpath.html#xpath_node::ctor">xpath_node</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <a class="link" href="xpath.html#xpath_node::ctor">xpath_node</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">attribute</span><span class="special">,</span> <span class="keyword">const</span> - <span class="identifier">xml_node</span><span class="special">&</span> - <span class="identifier">parent</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="xpath.html#xpath_node::node">node</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_attribute</span> </code><a class="link" href="xpath.html#xpath_node::attribute">attribute</a><code class="computeroutput"><span class="special">()</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xml_node</span> </code><a class="link" href="xpath.html#xpath_node::parent">parent</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">operator</span> </code><a class="link" href="xpath.html#xpath_node::unspecified_bool_type">unspecified_bool_type</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_node::comparison">operator==</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> - <span class="identifier">n</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_node::comparison">operator!=</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> - <span class="identifier">n</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="xpath.html#xpath_node_set">xpath_node_set</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <a class="link" href="xpath.html#xpath_node_set::ctor">xpath_node_set</a><code class="computeroutput"><span class="special">();</span></code> - </li> -<li class="listitem"> - <a class="link" href="xpath.html#xpath_node_set::ctor">xpath_node_set</a><code class="computeroutput"><span class="special">(</span><span class="identifier">const_iterator</span> - <span class="identifier">begin</span><span class="special">,</span> - <span class="identifier">const_iterator</span> <span class="identifier">end</span><span class="special">,</span> <span class="identifier">type_t</span> - <span class="identifier">type</span> <span class="special">=</span> - <span class="identifier">type_unsorted</span><span class="special">);</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">typedef</span> <span class="keyword">const</span> - <span class="identifier">xpath_node</span><span class="special">*</span> - </code><a class="link" href="xpath.html#xpath_node_set::const_iterator">const_iterator</a><code class="computeroutput"><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">const_iterator</span> </code><a class="link" href="xpath.html#xpath_node_set::begin">begin</a><code class="computeroutput"><span class="special">()</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">const_iterator</span> </code><a class="link" href="xpath.html#xpath_node_set::end">end</a><code class="computeroutput"><span class="special">()</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> </code><a class="link" href="xpath.html#xpath_node_set::index">operator[]</a><code class="computeroutput"><span class="special">(</span><span class="identifier">size_t</span> - <span class="identifier">index</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">size_t</span> </code><a class="link" href="xpath.html#xpath_node_set::size">size</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_node_set::empty">empty</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_node</span> </code><a class="link" href="xpath.html#xpath_node_set::first">first</a><code class="computeroutput"><span class="special">()</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">enum</span> <span class="identifier">type_t</span> - <span class="special">{</span></code><a class="link" href="xpath.html#xpath_node_set::type_unsorted">type_unsorted</a>, - <a class="link" href="xpath.html#xpath_node_set::type_sorted">type_sorted</a>, - <a class="link" href="xpath.html#xpath_node_set::type_sorted_reverse">type_sorted_reverse</a><code class="computeroutput"><span class="special">};</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">type_t</span> </code><a class="link" href="xpath.html#xpath_node_set::type">type</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">void</span> </code><a class="link" href="xpath.html#xpath_node_set::sort">sort</a><code class="computeroutput"><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">reverse</span> <span class="special">=</span> - <span class="keyword">false</span><span class="special">);</span></code> - <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="xpath.html#xpath_variable">xpath_variable</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="xpath.html#xpath_variable::name">name</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_value_type</span> </code><a class="link" href="xpath.html#xpath_variable::type">type</a><code class="computeroutput"><span class="special">()</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_variable::get_boolean">get_boolean</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">double</span> </code><a class="link" href="xpath.html#xpath_variable::get_number">get_number</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> </code><a class="link" href="xpath.html#xpath_variable::get_string">get_string</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">xpath_node_set</span><span class="special">&</span> </code><a class="link" href="xpath.html#xpath_variable::get_node_set">get_node_set</a><code class="computeroutput"><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_variable::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">value</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_variable::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">double</span> - <span class="identifier">value</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_variable::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">value</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_variable::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node_set</span><span class="special">&</span> - <span class="identifier">value</span><span class="special">);</span></code> - <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">class</span> </code><a class="link" href="xpath.html#xpath_variable_set">xpath_variable_set</a> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_variable</span><span class="special">*</span> - </code><a class="link" href="xpath.html#xpath_variable_set::add">add</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">,</span> - <span class="identifier">xpath_value_type</span> <span class="identifier">type</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_variable_set::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">,</span> - <span class="keyword">bool</span> <span class="identifier">value</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_variable_set::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">,</span> - <span class="keyword">double</span> <span class="identifier">value</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_variable_set::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">value</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">bool</span> </code><a class="link" href="xpath.html#xpath_variable_set::set">set</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">,</span> - <span class="keyword">const</span> <span class="identifier">xpath_node_set</span><span class="special">&</span> <span class="identifier">value</span><span class="special">);</span></code> <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">xpath_variable</span><span class="special">*</span> - </code><a class="link" href="xpath.html#xpath_variable_set::get">get</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">xpath_variable</span><span class="special">*</span> </code><a class="link" href="xpath.html#xpath_variable_set::get">get</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> - <span class="identifier">name</span><span class="special">)</span> - <span class="keyword">const</span><span class="special">;</span></code> - <br><br> - - </li> -</ul></div> - </li> -</ul></div> -<p> - Functions: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> </code><a class="link" href="dom.html#as_utf8">as_utf8</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="keyword">wchar_t</span><span class="special">*</span> <span class="identifier">str</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> </code><a class="link" href="dom.html#as_utf8">as_utf8</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring</span><span class="special">&</span> - <span class="identifier">str</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring</span> </code><a class="link" href="dom.html#as_wide">as_wide</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">str</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring</span> </code><a class="link" href="dom.html#as_wide">as_wide</a><code class="computeroutput"><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&</span> - <span class="identifier">str</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="keyword">void</span> </code><a class="link" href="dom.html#set_memory_management_functions">set_memory_management_functions</a><code class="computeroutput"><span class="special">(</span><span class="identifier">allocation_function</span> - <span class="identifier">allocate</span><span class="special">,</span> - <span class="identifier">deallocation_function</span> <span class="identifier">deallocate</span><span class="special">);</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">allocation_function</span> </code><a class="link" href="dom.html#get_memory_allocation_function">get_memory_allocation_function</a><code class="computeroutput"><span class="special">();</span></code> - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">deallocation_function</span> </code><a class="link" href="dom.html#get_memory_deallocation_function">get_memory_deallocation_function</a><code class="computeroutput"><span class="special">();</span></code> - </li> -</ul></div> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2014 Arseny Kapoulkine<p> - Distributed under the MIT License - </p> -</div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <b>API Reference</b> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="changes.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="toc.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -</body> -</html> diff --git a/docs/manual/changes.html b/docs/manual/changes.html deleted file mode 100644 index ec2c206..0000000 --- a/docs/manual/changes.html +++ /dev/null @@ -1,1106 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>Changelog</title> -<link rel="stylesheet" href="../pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../manual.html" title="pugixml 1.6"> -<link rel="up" href="../manual.html" title="pugixml 1.6"> -<link rel="prev" href="xpath.html" title="XPath"> -<link rel="next" href="apiref.html" title="API Reference"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="xpath.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="apiref.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -<hr> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.changes"></a><a class="link" href="changes.html" title="Changelog"> Changelog</a> -</h2></div></div></div> -<a name="manual.changes.15_04_2015___version_1_6"></a><h6> - <a class="link" href="changes.html#manual.changes.15_04_2015___version_1_6">15.04.2015 - version - 1.6</a> - </h6> -<p> - Maintenance release. Changes: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Specification changes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Attribute/text values now use more digits when printing floating - point numbers to guarantee round-tripping. - </li> -<li class="listitem"> - Text nodes no longer get extra surrounding whitespace when pretty-printing - nodes with mixed contents - </li> -</ol></div> - </li> -<li class="listitem"> - Bug fixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed translate and normalize-space XPath functions to no longer - return internal NUL characters - </li> -<li class="listitem"> - Fixed buffer overrun on malformed comments inside DOCTYPE sections - </li> -<li class="listitem"> - DOCTYPE parsing can no longer run out of stack space on malformed - inputs (XML parsing is now using bounded stack space) - </li> -<li class="listitem"> - Adjusted processing instruction output to avoid malformed documents - if the PI value contains "?>" - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.27_11_2014___version_1_5"></a><h6> - <a class="link" href="changes.html#manual.changes.27_11_2014___version_1_5">27.11.2014 - version - 1.5</a> - </h6> -<p> - Major release, featuring a lot of performance improvements and some new features. - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Specification changes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - xml_document::load(const char_t*) was renamed to load_string; the - old method is still available and will be deprecated in a future - release - </li> -<li class="listitem"> - xml_node::select_single_node was renamed to select_node; the old - method is still available and will be deprecated in a future release. - </li> -</ol></div> - </li> -<li class="listitem"> - New features: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Added xml_node::append_move and other functions for moving nodes - within a document - </li> -<li class="listitem"> - Added xpath_query::evaluate_node for evaluating queries with a single - node as a result - </li> -</ol></div> - </li> -<li class="listitem"> - Performance improvements: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Optimized XML parsing (10-40% faster with clang/gcc, up to 10% faster - with MSVC) - </li> -<li class="listitem"> - Optimized memory consumption when copying nodes in the same document - (string contents is now shared) - </li> -<li class="listitem"> - Optimized node copying (10% faster for cross-document copies, 3x - faster for inter-document copies; also it now consumes a constant - amount of stack space) - </li> -<li class="listitem"> - Optimized node output (60% faster; also it now consumes a constant - amount of stack space) - </li> -<li class="listitem"> - Optimized XPath allocation (query evaluation now results in fewer - temporary allocations) - </li> -<li class="listitem"> - Optimized XPath sorting (node set sorting is 2-3x faster in some - cases) - </li> -<li class="listitem"> - Optimized XPath evaluation (XPathMark suite is 100x faster; some - commonly used queries are 3-4x faster) - </li> -</ol></div> - </li> -<li class="listitem"> - Compatibility improvements: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed xml_node::offset_debug for corner cases - </li> -<li class="listitem"> - Fixed undefined behavior while calling memcpy in some cases - </li> -<li class="listitem"> - Fixed MSVC 2015 compilation warnings - </li> -<li class="listitem"> - Fixed contrib/foreach.hpp for Boost 1.56.0 - </li> -</ol></div> - </li> -<li class="listitem"> - Bug fixes - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Adjusted comment output to avoid malformed documents if the comment - value contains "--" - </li> -<li class="listitem"> - Fix XPath sorting for documents that were constructed using append_buffer - </li> -<li class="listitem"> - Fix load_file for wide-character paths with non-ASCII characters - in MinGW with C++11 mode enabled - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.27_02_2014___version_1_4"></a><h6> - <a class="link" href="changes.html#manual.changes.27_02_2014___version_1_4">27.02.2014 - version - 1.4</a> - </h6> -<p> - Major release, featuring various new features, bug fixes and compatibility - improvements. - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Specification changes: - <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> - Documents without element nodes are now rejected with status_no_document_element - error, unless parse_fragment option is used - </li></ol></div> - </li> -<li class="listitem"> - New features: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Added XML fragment parsing (parse_fragment flag) - </li> -<li class="listitem"> - Added PCDATA whitespace trimming (parse_trim_pcdata flag) - </li> -<li class="listitem"> - Added long long support for xml_attribute and xml_text (as_llong, - as_ullong and set_value/set overloads) - </li> -<li class="listitem"> - Added hexadecimal integer parsing support for as_int/as_uint/as_llong/as_ullong - </li> -<li class="listitem"> - Added xml_node::append_buffer to improve performance of assembling - documents from fragments - </li> -<li class="listitem"> - xml_named_node_iterator is now bidirectional - </li> -<li class="listitem"> - Reduced XPath stack consumption during compilation and evaluation - (useful for embedded systems) - </li> -</ol></div> - </li> -<li class="listitem"> - Compatibility improvements: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Improved support for platforms without wchar_t support - </li> -<li class="listitem"> - Fixed several false positives in clang static analysis - </li> -<li class="listitem"> - Fixed several compilation warnings for various GCC versions - </li> -</ol></div> - </li> -<li class="listitem"> - Bug fixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed undefined pointer arithmetic in XPath implementation - </li> -<li class="listitem"> - Fixed non-seekable iostream support for certain stream types, i.e. - boost file_source with pipe input - </li> -<li class="listitem"> - Fixed xpath_query::return_type() for some expressions - </li> -<li class="listitem"> - Fixed dllexport issues with xml_named_node_iterator - </li> -<li class="listitem"> - Fixed find_child_by_attribute assertion for attributes with null - name/value - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.1_05_2012___version_1_2"></a><h6> - <a class="link" href="changes.html#manual.changes.1_05_2012___version_1_2">1.05.2012 - version - 1.2</a> - </h6> -<p> - Major release, featuring header-only mode, various interface enhancements (i.e. - PCDATA manipulation and C++11 iteration), many other features and compatibility - improvements. - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - New features: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Added xml_text helper class for working with PCDATA/CDATA contents - of an element node - </li> -<li class="listitem"> - Added optional header-only mode (controlled by PUGIXML_HEADER_ONLY - define) - </li> -<li class="listitem"> - Added xml_node::children() and xml_node::attributes() for C++11 ranged - for loop or BOOST_FOREACH - </li> -<li class="listitem"> - Added support for Latin-1 (ISO-8859-1) encoding conversion during - loading and saving - </li> -<li class="listitem"> - Added custom default values for xml_attribute::as_* (they are returned if the attribute - does not exist) - </li> -<li class="listitem"> - Added parse_ws_pcdata_single flag for preserving whitespace-only - PCDATA in case it's the only child - </li> -<li class="listitem"> - Added format_save_file_text for xml_document::save_file to open files - as text instead of binary (changes newlines on Windows) - </li> -<li class="listitem"> - Added format_no_escapes flag to disable special symbol escaping (complements - ~parse_escapes) - </li> -<li class="listitem"> - Added support for loading document from streams that do not support - seeking - </li> -<li class="listitem"> - Added PUGIXML_MEMORY_* constants for tweaking allocation behavior (useful for embedded - systems) - </li> -<li class="listitem"> - Added PUGIXML_VERSION preprocessor define - </li> -</ol></div> - </li> -<li class="listitem"> - Compatibility improvements: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Parser does not require setjmp support (improves compatibility with - some embedded platforms, enables clr:pure compilation) - </li> -<li class="listitem"> - STL forward declarations are no longer used (fixes SunCC/RWSTL compilation, - fixes clang compilation in C++11 mode) - </li> -<li class="listitem"> - Fixed AirPlay SDK, Android, Windows Mobile (WinCE) and C++/CLI compilation - </li> -<li class="listitem"> - Fixed several compilation warnings for various GCC versions, Intel - C++ compiler and Clang - </li> -</ol></div> - </li> -<li class="listitem"> - Bug fixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed unsafe bool conversion to avoid problems on C++/CLI - </li> -<li class="listitem"> - Iterator dereference operator is const now (fixes Boost filter_iterator - support) - </li> -<li class="listitem"> - xml_document::save_file now checks for file I/O errors during saving - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.1_11_2010___version_1_0"></a><h6> - <a class="link" href="changes.html#manual.changes.1_11_2010___version_1_0">1.11.2010 - version - 1.0</a> - </h6> -<p> - Major release, featuring many XPath enhancements, wide character filename support, - miscellaneous performance improvements, bug fixes and more. - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - XPath: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - XPath implementation is moved to pugixml.cpp (which is the only source - file now); use PUGIXML_NO_XPATH if you want to disable XPath to reduce - code size - </li> -<li class="listitem"> - XPath is now supported without exceptions (PUGIXML_NO_EXCEPTIONS); - the error handling mechanism depends on the presence of exception - support - </li> -<li class="listitem"> - XPath is now supported without STL (PUGIXML_NO_STL) - </li> -<li class="listitem"> - Introduced variable support - </li> -<li class="listitem"> - Introduced new xpath_query::evaluate_string, which works without - STL - </li> -<li class="listitem"> - Introduced new xpath_node_set constructor (from an iterator range) - </li> -<li class="listitem"> - Evaluation function now accept attribute context nodes - </li> -<li class="listitem"> - All internal allocations use custom allocation functions - </li> -<li class="listitem"> - Improved error reporting; now a last parsed offset is returned together - with the parsing error - </li> -</ol></div> - </li> -<li class="listitem"> - Bug fixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed memory leak for loading from streams with stream exceptions - turned on - </li> -<li class="listitem"> - Fixed custom deallocation function calling with null pointer in one - case - </li> -<li class="listitem"> - Fixed missing attributes for iterator category functions; all functions/classes - can now be DLL-exported - </li> -<li class="listitem"> - Worked around Digital Mars compiler bug, which lead to minor read - overfetches in several functions - </li> -<li class="listitem"> - load_file now works with 2+ Gb files in MSVC/MinGW - </li> -<li class="listitem"> - XPath: fixed memory leaks for incorrect queries - </li> -<li class="listitem"> - XPath: fixed xpath_node() attribute constructor with empty attribute - argument - </li> -<li class="listitem"> - XPath: fixed lang() function for non-ASCII arguments - </li> -</ol></div> - </li> -<li class="listitem"> - Specification changes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - CDATA nodes containing ]]> are printed as several nodes; while - this changes the internal structure, this is the only way to escape - CDATA contents - </li> -<li class="listitem"> - Memory allocation errors during parsing now preserve last parsed - offset (to give an idea about parsing progress) - </li> -<li class="listitem"> - If an element node has the only child, and it is of CDATA type, then - the extra indentation is omitted (previously this behavior only held - for PCDATA children) - </li> -</ol></div> - </li> -<li class="listitem"> - Additional functionality: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Added xml_parse_result default constructor - </li> -<li class="listitem"> - Added xml_document::load_file and xml_document::save_file with wide - character paths - </li> -<li class="listitem"> - Added as_utf8 and as_wide overloads for std::wstring/std::string - arguments - </li> -<li class="listitem"> - Added DOCTYPE node type (node_doctype) and a special parse flag, - parse_doctype, to add such nodes to the document during parsing - </li> -<li class="listitem"> - Added parse_full parse flag mask, which extends parse_default with - all node type parsing flags except parse_ws_pcdata - </li> -<li class="listitem"> - Added xml_node::hash_value() and xml_attribute::hash_value() functions - for use in hash-based containers - </li> -<li class="listitem"> - Added internal_object() and additional constructor for both xml_node - and xml_attribute for easier marshalling (useful for language bindings) - </li> -<li class="listitem"> - Added xml_document::document_element() function - </li> -<li class="listitem"> - Added xml_node::prepend_attribute, xml_node::prepend_child and xml_node::prepend_copy - functions - </li> -<li class="listitem"> - Added xml_node::append_child, xml_node::prepend_child, xml_node::insert_child_before - and xml_node::insert_child_after overloads for element nodes (with - name instead of type) - </li> -<li class="listitem"> - Added xml_document::reset() function - </li> -</ol></div> - </li> -<li class="listitem"> - Performance improvements: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - xml_node::root() and xml_node::offset_debug() are now O(1) instead - of O(logN) - </li> -<li class="listitem"> - Minor parsing optimizations - </li> -<li class="listitem"> - Minor memory optimization for strings in DOM tree (set_name/set_value) - </li> -<li class="listitem"> - Memory optimization for string memory reclaiming in DOM tree (set_name/set_value - now reallocate the buffer if memory waste is too big) - </li> -<li class="listitem"> - XPath: optimized document order sorting - </li> -<li class="listitem"> - XPath: optimized child/attribute axis step - </li> -<li class="listitem"> - XPath: optimized number-to-string conversions in MSVC - </li> -<li class="listitem"> - XPath: optimized concat for many arguments - </li> -<li class="listitem"> - XPath: optimized evaluation allocation mechanism: constant and document - strings are not heap-allocated - </li> -<li class="listitem"> - XPath: optimized evaluation allocation mechanism: all temporaries' - allocations use fast stack-like allocator - </li> -</ol></div> - </li> -<li class="listitem"> - Compatibility: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Removed wildcard functions (xml_node::child_w, xml_node::attribute_w, - etc.) - </li> -<li class="listitem"> - Removed xml_node::all_elements_by_name - </li> -<li class="listitem"> - Removed xpath_type_t enumeration; use xpath_value_type instead - </li> -<li class="listitem"> - Removed format_write_bom_utf8 enumeration; use format_write_bom instead - </li> -<li class="listitem"> - Removed xml_document::precompute_document_order, xml_attribute::document_order - and xml_node::document_order functions; document order sort optimization - is now automatic - </li> -<li class="listitem"> - Removed xml_document::parse functions and transfer_ownership struct; - use xml_document::load_buffer_inplace and xml_document::load_buffer_inplace_own - instead - </li> -<li class="listitem"> - Removed as_utf16 function; use as_wide instead - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.1_07_2010___version_0_9"></a><h6> - <a class="link" href="changes.html#manual.changes.1_07_2010___version_0_9">1.07.2010 - version - 0.9</a> - </h6> -<p> - Major release, featuring extended and improved Unicode support, miscellaneous - performance improvements, bug fixes and more. - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Major Unicode improvements: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Introduced encoding support (automatic/manual encoding detection - on load, manual encoding selection on save, conversion from/to UTF8, - UTF16 LE/BE, UTF32 LE/BE) - </li> -<li class="listitem"> - Introduced wchar_t mode (you can set PUGIXML_WCHAR_MODE define to - switch pugixml internal encoding from UTF8 to wchar_t; all functions - are switched to their Unicode variants) - </li> -<li class="listitem"> - Load/save functions now support wide streams - </li> -</ol></div> - </li> -<li class="listitem"> - Bug fixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed document corruption on failed parsing bug - </li> -<li class="listitem"> - XPath string <-> number conversion improvements (increased - precision, fixed crash for huge numbers) - </li> -<li class="listitem"> - Improved DOCTYPE parsing: now parser recognizes all well-formed DOCTYPE - declarations - </li> -<li class="listitem"> - Fixed xml_attribute::as_uint() for large numbers (i.e. 2^32-1) - </li> -<li class="listitem"> - Fixed xml_node::first_element_by_path for path components that are - prefixes of node names, but are not exactly equal to them. - </li> -</ol></div> - </li> -<li class="listitem"> - Specification changes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - parse() API changed to load_buffer/load_buffer_inplace/load_buffer_inplace_own; - load_buffer APIs do not require zero-terminated strings. - </li> -<li class="listitem"> - Renamed as_utf16 to as_wide - </li> -<li class="listitem"> - Changed xml_node::offset_debug return type and xml_parse_result::offset - type to ptrdiff_t - </li> -<li class="listitem"> - Nodes/attributes with empty names are now printed as :anonymous - </li> -</ol></div> - </li> -<li class="listitem"> - Performance improvements: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Optimized document parsing and saving - </li> -<li class="listitem"> - Changed internal memory management: internal allocator is used for - both metadata and name/value data; allocated pages are deleted if - all allocations from them are deleted - </li> -<li class="listitem"> - Optimized memory consumption: sizeof(xml_node_struct) reduced from - 40 bytes to 32 bytes on x86 - </li> -<li class="listitem"> - Optimized debug mode parsing/saving by order of magnitude - </li> -</ol></div> - </li> -<li class="listitem"> - Miscellaneous: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - All STL includes except <exception> in pugixml.hpp are replaced - with forward declarations - </li> -<li class="listitem"> - xml_node::remove_child and xml_node::remove_attribute now return - the operation result - </li> -</ol></div> - </li> -<li class="listitem"> - Compatibility: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - parse() and as_utf16 are left for compatibility (these functions - are deprecated and will be removed in version 1.0) - </li> -<li class="listitem"> - Wildcard functions, document_order/precompute_document_order functions, - all_elements_by_name function and format_write_bom_utf8 flag are - deprecated and will be removed in version 1.0 - </li> -<li class="listitem"> - xpath_type_t enumeration was renamed to xpath_value_type; xpath_type_t - is deprecated and will be removed in version 1.0 - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.8_11_2009___version_0_5"></a><h6> - <a class="link" href="changes.html#manual.changes.8_11_2009___version_0_5">8.11.2009 - version - 0.5</a> - </h6> -<p> - Major bugfix release. Changes: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - XPath bugfixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed translate(), lang() and concat() functions (infinite loops/crashes) - </li> -<li class="listitem"> - Fixed compilation of queries with empty literal strings ("") - </li> -<li class="listitem"> - Fixed axis tests: they never add empty nodes/attributes to the resulting - node set now - </li> -<li class="listitem"> - Fixed string-value evaluation for node-set (the result excluded some - text descendants) - </li> -<li class="listitem"> - Fixed self:: axis (it behaved like ancestor-or-self::) - </li> -<li class="listitem"> - Fixed following:: and preceding:: axes (they included descendent - and ancestor nodes, respectively) - </li> -<li class="listitem"> - Minor fix for namespace-uri() function (namespace declaration scope - includes the parent element of namespace declaration attribute) - </li> -<li class="listitem"> - Some incorrect queries are no longer parsed now (i.e. foo: *) - </li> -<li class="listitem"> - Fixed text()/etc. node test parsing bug (i.e. foo[text()] failed - to compile) - </li> -<li class="listitem"> - Fixed root step (/) - it now selects empty node set if query is evaluated - on empty node - </li> -<li class="listitem"> - Fixed string to number conversion ("123 " converted to - NaN, "123 .456" converted to 123.456 - now the results - are 123 and NaN, respectively) - </li> -<li class="listitem"> - Node set copying now preserves sorted type; leads to better performance - on some queries - </li> -</ol></div> - </li> -<li class="listitem"> - Miscellaneous bugfixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed xml_node::offset_debug for PI nodes - </li> -<li class="listitem"> - Added empty attribute checks to xml_node::remove_attribute - </li> -<li class="listitem"> - Fixed node_pi and node_declaration copying - </li> -<li class="listitem"> - Const-correctness fixes - </li> -</ol></div> - </li> -<li class="listitem"> - Specification changes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - xpath_node::select_nodes() and related functions now throw exception - if expression return type is not node set (instead of assertion) - </li> -<li class="listitem"> - xml_node::traverse() now sets depth to -1 for both begin() and end() - callbacks (was 0 at begin() and -1 at end()) - </li> -<li class="listitem"> - In case of non-raw node printing a newline is output after PCDATA - inside nodes if the PCDATA has siblings - </li> -<li class="listitem"> - UTF8 -> wchar_t conversion now considers 5-byte UTF8-like sequences - as invalid - </li> -</ol></div> - </li> -<li class="listitem"> - New features: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Added xpath_node_set::operator[] for index-based iteration - </li> -<li class="listitem"> - Added xpath_query::return_type() - </li> -<li class="listitem"> - Added getter accessors for memory-management functions - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.17_09_2009___version_0_42"></a><h6> - <a class="link" href="changes.html#manual.changes.17_09_2009___version_0_42">17.09.2009 - version - 0.42</a> - </h6> -<p> - Maintenance release. Changes: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Bug fixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed deallocation in case of custom allocation functions or if delete[] - / free are incompatible - </li> -<li class="listitem"> - XPath parser fixed for incorrect queries (i.e. incorrect XPath queries - should now always fail to compile) - </li> -<li class="listitem"> - Const-correctness fixes for find_child_by_attribute - </li> -<li class="listitem"> - Improved compatibility (miscellaneous warning fixes, fixed cstring - include dependency for GCC) - </li> -<li class="listitem"> - Fixed iterator begin/end and print function to work correctly for - empty nodes - </li> -</ol></div> - </li> -<li class="listitem"> - New features: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Added PUGIXML_API/PUGIXML_CLASS/PUGIXML_FUNCTION configuration macros - to control class/function attributes - </li> -<li class="listitem"> - Added xml_attribute::set_value overloads for different types - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.8_02_2009___version_0_41"></a><h6> - <a class="link" href="changes.html#manual.changes.8_02_2009___version_0_41">8.02.2009 - version - 0.41</a> - </h6> -<p> - Maintenance release. Changes: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - Bug fixes: - <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> - Fixed bug with node printing (occasionally some content was not written - to output stream) - </li></ol></div> - </li></ul></div> -<a name="manual.changes.18_01_2009___version_0_4"></a><h6> - <a class="link" href="changes.html#manual.changes.18_01_2009___version_0_4">18.01.2009 - version - 0.4</a> - </h6> -<p> - Changes: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Bug fixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Documentation fix in samples for parse() with manual lifetime control - </li> -<li class="listitem"> - Fixed document order sorting in XPath (it caused wrong order of nodes - after xpath_node_set::sort and wrong results of some XPath queries) - </li> -</ol></div> - </li> -<li class="listitem"> - Node printing changes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Single quotes are no longer escaped when printing nodes - </li> -<li class="listitem"> - Symbols in second half of ASCII table are no longer escaped when - printing nodes; because of this, format_utf8 flag is deleted as it's - no longer needed and format_write_bom is renamed to format_write_bom_utf8. - </li> -<li class="listitem"> - Reworked node printing - now it works via xml_writer interface; implementations - for FILE* and std::ostream are available. As a side-effect, xml_document::save_file - now works without STL. - </li> -</ol></div> - </li> -<li class="listitem"> - New features: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Added unsigned integer support for attributes (xml_attribute::as_uint, - xml_attribute::operator=) - </li> -<li class="listitem"> - Now document declaration (<?xml ...?>) is parsed as node with - type node_declaration when parse_declaration flag is specified (access - to encoding/version is performed as if they were attributes, i.e. - doc.child("xml").attribute("version").as_float()); - corresponding flags for node printing were also added - </li> -<li class="listitem"> - Added support for custom memory management (see set_memory_management_functions - for details) - </li> -<li class="listitem"> - Implemented node/attribute copying (see xml_node::insert_copy_* and - xml_node::append_copy for details) - </li> -<li class="listitem"> - Added find_child_by_attribute and find_child_by_attribute_w to simplify - parsing code in some cases (i.e. COLLADA files) - </li> -<li class="listitem"> - Added file offset information querying for debugging purposes (now - you're able to determine exact location of any xml_node in parsed - file, see xml_node::offset_debug for details) - </li> -<li class="listitem"> - Improved error handling for parsing - now load(), load_file() and - parse() return xml_parse_result, which contains error code and last - parsed offset; this does not break old interface as xml_parse_result - can be implicitly casted to bool. - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.31_10_2007___version_0_34"></a><h6> - <a class="link" href="changes.html#manual.changes.31_10_2007___version_0_34">31.10.2007 - version - 0.34</a> - </h6> -<p> - Maintenance release. Changes: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Bug fixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed bug with loading from text-mode iostreams - </li> -<li class="listitem"> - Fixed leak when transfer_ownership is true and parsing is failing - </li> -<li class="listitem"> - Fixed bug in saving (\r and \n are now escaped in attribute values) - </li> -<li class="listitem"> - Renamed free() to destroy() - some macro conflicts were reported - </li> -</ol></div> - </li> -<li class="listitem"> - New features: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Improved compatibility (supported Digital Mars C++, MSVC 6, CodeWarrior - 8, PGI C++, Comeau, supported PS3 and XBox360) - </li> -<li class="listitem"> - PUGIXML_NO_EXCEPTION flag for platforms without exception handling - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.21_02_2007___version_0_3"></a><h6> - <a class="link" href="changes.html#manual.changes.21_02_2007___version_0_3">21.02.2007 - version - 0.3</a> - </h6> -<p> - Refactored, reworked and improved version. Changes: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Interface: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Added XPath - </li> -<li class="listitem"> - Added tree modification functions - </li> -<li class="listitem"> - Added no STL compilation mode - </li> -<li class="listitem"> - Added saving document to file - </li> -<li class="listitem"> - Refactored parsing flags - </li> -<li class="listitem"> - Removed xml_parser class in favor of xml_document - </li> -<li class="listitem"> - Added transfer ownership parsing mode - </li> -<li class="listitem"> - Modified the way xml_tree_walker works - </li> -<li class="listitem"> - Iterators are now non-constant - </li> -</ol></div> - </li> -<li class="listitem"> - Implementation: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Support of several compilers and platforms - </li> -<li class="listitem"> - Refactored and sped up parsing core - </li> -<li class="listitem"> - Improved standard compliancy - </li> -<li class="listitem"> - Added XPath implementation - </li> -<li class="listitem"> - Fixed several bugs - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.6_11_2006___version_0_2"></a><h6> - <a class="link" href="changes.html#manual.changes.6_11_2006___version_0_2">6.11.2006 - version - 0.2</a> - </h6> -<p> - First public release. Changes: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Bug fixes: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Fixed child_value() (for empty nodes) - </li> -<li class="listitem"> - Fixed xml_parser_impl warning at W4 - </li> -</ol></div> - </li> -<li class="listitem"> - New features: - <div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - Introduced child_value(name) and child_value_w(name) - </li> -<li class="listitem"> - parse_eol_pcdata and parse_eol_attribute flags + parse_minimal optimizations - </li> -<li class="listitem"> - Optimizations of strconv_t - </li> -</ol></div> - </li> -</ul></div> -<a name="manual.changes.15_07_2006___version_0_1"></a><h6> - <a class="link" href="changes.html#manual.changes.15_07_2006___version_0_1">15.07.2006 - version - 0.1</a> - </h6> -<p> - First private release for testing purposes - </p> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2014 Arseny Kapoulkine<p> - Distributed under the MIT License - </p> -</div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="xpath.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="apiref.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -</body> -</html> diff --git a/docs/manual/dom.html b/docs/manual/dom.html deleted file mode 100644 index 854ec84..0000000 --- a/docs/manual/dom.html +++ /dev/null @@ -1,732 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>Document object model</title> -<link rel="stylesheet" href="../pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../manual.html" title="pugixml 1.6"> -<link rel="up" href="../manual.html" title="pugixml 1.6"> -<link rel="prev" href="install.html" title="Installation"> -<link rel="next" href="loading.html" title="Loading document"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <b>Object model</b> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="install.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="loading.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -<hr> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.dom"></a><a class="link" href="dom.html" title="Document object model"> Document object model</a> -</h2></div></div></div> -<div class="toc"><dl class="toc"> -<dt><span class="section"><a href="dom.html#manual.dom.tree"> Tree structure</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.cpp"> C++ interface</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.unicode"> Unicode interface</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.thread"> Thread-safety guarantees</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.exception"> Exception guarantees</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.memory"> Memory management</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="dom.html#manual.dom.memory.custom"> Custom memory allocation/deallocation - functions</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.memory.tuning"> Memory consumption tuning</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.memory.internals"> Document memory management - internals</a></span></dt> -</dl></dd> -</dl></div> -<p> - pugixml stores XML data in DOM-like way: the entire XML document (both document - structure and element data) is stored in memory as a tree. The tree can be - loaded from a character stream (file, string, C++ I/O stream), then traversed - with the special API or XPath expressions. The whole tree is mutable: both - node structure and node/attribute data can be changed at any time. Finally, - the result of document transformations can be saved to a character stream (file, - C++ I/O stream or custom transport). - </p> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.dom.tree"></a><a class="link" href="dom.html#manual.dom.tree" title="Tree structure"> Tree structure</a> -</h3></div></div></div> -<p> - The XML document is represented with a tree data structure. The root of the - tree is the document itself, which corresponds to C++ type <a class="link" href="dom.html#xml_document">xml_document</a>. - Document has one or more child nodes, which correspond to C++ type <a class="link" href="dom.html#xml_node">xml_node</a>. Nodes have different types; depending - on a type, a node can have a collection of child nodes, a collection of attributes, - which correspond to C++ type <a class="link" href="dom.html#xml_attribute">xml_attribute</a>, - and some additional data (i.e. name). - </p> -<a name="xml_node_type"></a><p> - The tree nodes can be of one of the following types (which together form - the enumeration <code class="computeroutput"><span class="identifier">xml_node_type</span></code>): - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Document node (<a name="node_document"></a><code class="literal">node_document</code>) - this - is the root of the tree, which consists of several child nodes. This - node corresponds to <a class="link" href="dom.html#xml_document">xml_document</a> - class; note that <a class="link" href="dom.html#xml_document">xml_document</a> is - a sub-class of <a class="link" href="dom.html#xml_node">xml_node</a>, so the entire - node interface is also available. However, document node is special in - several ways, which are covered below. There can be only one document - node in the tree; document node does not have any XML representation. - <br><br> - - </li> -<li class="listitem"> - Element/tag node (<a name="node_element"></a><code class="literal">node_element</code>) - this - is the most common type of node, which represents XML elements. Element - nodes have a name, a collection of attributes and a collection of child - nodes (both of which may be empty). The attribute is a simple name/value - pair. The example XML representation of element nodes is as follows: - </li> -</ul></div> -<pre class="programlisting"><span class="special"><</span><span class="identifier">node</span> <span class="identifier">attr</span><span class="special">=</span><span class="string">"value"</span><span class="special">><</span><span class="identifier">child</span><span class="special">/></</span><span class="identifier">node</span><span class="special">></span> -</pre> -<div class="blockquote"><blockquote class="blockquote"><p> - There are two element nodes here: one has name <code class="computeroutput"><span class="string">"node"</span></code>, - single attribute <code class="computeroutput"><span class="string">"attr"</span></code> - and single child <code class="computeroutput"><span class="string">"child"</span></code>, - another has name <code class="computeroutput"><span class="string">"child"</span></code> - and does not have any attributes or child nodes. - </p></blockquote></div> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - Plain character data nodes (<a name="node_pcdata"></a><code class="literal">node_pcdata</code>) - represent plain text in XML. PCDATA nodes have a value, but do not have - a name or children/attributes. Note that <span class="bold"><strong>plain - character data is not a part of the element node but instead has its - own node</strong></span>; an element node can have several child PCDATA nodes. - The example XML representation of text nodes is as follows: - </li></ul></div> -<pre class="programlisting"><span class="special"><</span><span class="identifier">node</span><span class="special">></span> <span class="identifier">text1</span> <span class="special"><</span><span class="identifier">child</span><span class="special">/></span> <span class="identifier">text2</span> <span class="special"></</span><span class="identifier">node</span><span class="special">></span> -</pre> -<div class="blockquote"><blockquote class="blockquote"><p> - Here <code class="computeroutput"><span class="string">"node"</span></code> element - has three children, two of which are PCDATA nodes with values <code class="computeroutput"><span class="string">" text1 "</span></code> and <code class="computeroutput"><span class="string">" - text2 "</span></code>. - </p></blockquote></div> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - Character data nodes (<a name="node_cdata"></a><code class="literal">node_cdata</code>) represent - text in XML that is quoted in a special way. CDATA nodes do not differ - from PCDATA nodes except in XML representation - the above text example - looks like this with CDATA: - </li></ul></div> -<pre class="programlisting"><span class="special"><</span><span class="identifier">node</span><span class="special">></span> <span class="special"><![</span><span class="identifier">CDATA</span><span class="special">[[</span><span class="identifier">text1</span><span class="special">]]></span> <span class="special"><</span><span class="identifier">child</span><span class="special">/></span> <span class="special"><![</span><span class="identifier">CDATA</span><span class="special">[[</span><span class="identifier">text2</span><span class="special">]]></span> <span class="special"></</span><span class="identifier">node</span><span class="special">></span> -</pre> -<div class="blockquote"><blockquote class="blockquote"><p> - CDATA nodes make it easy to include non-escaped <, & and > characters - in plain text. CDATA value can not contain the character sequence ]]>, - since it is used to determine the end of node contents. - </p></blockquote></div> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - Comment nodes (<a name="node_comment"></a><code class="literal">node_comment</code>) represent - comments in XML. Comment nodes have a value, but do not have a name or - children/attributes. The example XML representation of a comment node - is as follows: - </li></ul></div> -<pre class="programlisting"><span class="special"><!--</span> <span class="identifier">comment</span> <span class="identifier">text</span> <span class="special">--></span> -</pre> -<div class="blockquote"><blockquote class="blockquote"><p> - Here the comment node has value <code class="computeroutput"><span class="string">"comment - text"</span></code>. By default comment nodes are treated as non-essential - part of XML markup and are not loaded during XML parsing. You can override - this behavior with <a class="link" href="loading.html#parse_comments">parse_comments</a> - flag. - </p></blockquote></div> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - Processing instruction node (<a name="node_pi"></a><code class="literal">node_pi</code>) represent - processing instructions (PI) in XML. PI nodes have a name and an optional - value, but do not have children/attributes. The example XML representation - of a PI node is as follows: - </li></ul></div> -<pre class="programlisting"><span class="special"><?</span><span class="identifier">name</span> <span class="identifier">value</span><span class="special">?></span> -</pre> -<div class="blockquote"><blockquote class="blockquote"><p> - Here the name (also called PI target) is <code class="computeroutput"><span class="string">"name"</span></code>, - and the value is <code class="computeroutput"><span class="string">"value"</span></code>. - By default PI nodes are treated as non-essential part of XML markup and - are not loaded during XML parsing. You can override this behavior with - <a class="link" href="loading.html#parse_pi">parse_pi</a> flag. - </p></blockquote></div> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - Declaration node (<a name="node_declaration"></a><code class="literal">node_declaration</code>) - represents document declarations in XML. Declaration nodes have a name - (<code class="computeroutput"><span class="string">"xml"</span></code>) and an - optional collection of attributes, but do not have value or children. - There can be only one declaration node in a document; moreover, it should - be the topmost node (its parent should be the document). The example - XML representation of a declaration node is as follows: - </li></ul></div> -<pre class="programlisting"><span class="special"><?</span><span class="identifier">xml</span> <span class="identifier">version</span><span class="special">=</span><span class="string">"1.0"</span><span class="special">?></span> -</pre> -<div class="blockquote"><blockquote class="blockquote"><p> - Here the node has name <code class="computeroutput"><span class="string">"xml"</span></code> - and a single attribute with name <code class="computeroutput"><span class="string">"version"</span></code> - and value <code class="computeroutput"><span class="string">"1.0"</span></code>. - By default declaration nodes are treated as non-essential part of XML markup - and are not loaded during XML parsing. You can override this behavior with - <a class="link" href="loading.html#parse_declaration">parse_declaration</a> flag. Also, - by default a dummy declaration is output when XML document is saved unless - there is already a declaration in the document; you can disable this with - <a class="link" href="saving.html#format_no_declaration">format_no_declaration</a> flag. - </p></blockquote></div> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - Document type declaration node (<a name="node_doctype"></a><code class="literal">node_doctype</code>) - represents document type declarations in XML. Document type declaration - nodes have a value, which corresponds to the entire document type contents; - no additional nodes are created for inner elements like <code class="computeroutput"><span class="special"><!</span><span class="identifier">ENTITY</span><span class="special">></span></code>. There can be only one document type - declaration node in a document; moreover, it should be the topmost node - (its parent should be the document). The example XML representation of - a document type declaration node is as follows: - </li></ul></div> -<pre class="programlisting"><span class="special"><!</span><span class="identifier">DOCTYPE</span> <span class="identifier">greeting</span> <span class="special">[</span> <span class="special"><!</span><span class="identifier">ELEMENT</span> <span class="identifier">greeting</span> <span class="special">(</span><span class="preprocessor">#PCDATA</span><span class="special">)></span> <span class="special">]></span> -</pre> -<div class="blockquote"><blockquote class="blockquote"><p> - Here the node has value <code class="computeroutput"><span class="string">"greeting [ <!ELEMENT - greeting (#PCDATA)> ]"</span></code>. By default document type - declaration nodes are treated as non-essential part of XML markup and are - not loaded during XML parsing. You can override this behavior with <a class="link" href="loading.html#parse_doctype">parse_doctype</a> flag. - </p></blockquote></div> -<p> - Finally, here is a complete example of XML document and the corresponding - tree representation (<a href="../samples/tree.xml" target="_top">samples/tree.xml</a>): - </p> -<div class="informaltable"><table class="table"> -<colgroup> -<col> -<col> -</colgroup> -<tbody><tr> -<td> - <p> - -</p> -<pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="special"><?</span><span class="identifier">xml</span> <span class="identifier">version</span><span class="special">=</span><span class="string">"1.0"</span><span class="special">?></span> -<span class="special"><</span><span class="identifier">mesh</span> <span class="identifier">name</span><span class="special">=</span><span class="string">"mesh_root"</span><span class="special">></span> - <span class="special"><!--</span> <span class="identifier">here</span> <span class="identifier">is</span> <span class="identifier">a</span> <span class="identifier">mesh</span> <span class="identifier">node</span> <span class="special">--></span> - <span class="identifier">some</span> <span class="identifier">text</span> - <span class="special"><![</span><span class="identifier">CDATA</span><span class="special">[</span><span class="identifier">someothertext</span><span class="special">]]></span> - <span class="identifier">some</span> <span class="identifier">more</span> <span class="identifier">text</span> - <span class="special"><</span><span class="identifier">node</span> <span class="identifier">attr1</span><span class="special">=</span><span class="string">"value1"</span> <span class="identifier">attr2</span><span class="special">=</span><span class="string">"value2"</span> <span class="special">/></span> - <span class="special"><</span><span class="identifier">node</span> <span class="identifier">attr1</span><span class="special">=</span><span class="string">"value2"</span><span class="special">></span> - <span class="special"><</span><span class="identifier">innernode</span><span class="special">/></span> - <span class="special"></</span><span class="identifier">node</span><span class="special">></span> -<span class="special"></</span><span class="identifier">mesh</span><span class="special">></span> -<span class="special"><?</span><span class="identifier">include</span> <span class="identifier">somedata</span><span class="special">?></span> -</pre> -<p> - </p> - </td> -<td> - <p> - <a href="../images/dom_tree.png" target="_top"><span class="inlinemediaobject"><img src="../images/dom_tree_thumb.png" alt="dom_tree_thumb"></span></a> - </p> - </td> -</tr></tbody> -</table></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.dom.cpp"></a><a class="link" href="dom.html#manual.dom.cpp" title="C++ interface"> C++ interface</a> -</h3></div></div></div> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - All pugixml classes and functions are located in the <code class="computeroutput"><span class="identifier">pugi</span></code> - namespace; you have to either use explicit name qualification (i.e. <code class="computeroutput"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span></code>), or to gain access to relevant - symbols via <code class="computeroutput"><span class="keyword">using</span></code> directive - (i.e. <code class="computeroutput"><span class="keyword">using</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span><span class="special">;</span></code> or <code class="computeroutput"><span class="keyword">using</span> - <span class="keyword">namespace</span> <span class="identifier">pugi</span><span class="special">;</span></code>). The namespace will be omitted from all - declarations in this documentation hereafter; all code examples will use - fully qualified names. - </p></td></tr> -</table></div> -<p> - Despite the fact that there are several node types, there are only three - C++ classes representing the tree (<code class="computeroutput"><span class="identifier">xml_document</span></code>, - <code class="computeroutput"><span class="identifier">xml_node</span></code>, <code class="computeroutput"><span class="identifier">xml_attribute</span></code>); - some operations on <code class="computeroutput"><span class="identifier">xml_node</span></code> - are only valid for certain node types. The classes are described below. - </p> -<a name="xml_document"></a><a name="xml_document::document_element"></a><p> - <code class="computeroutput"><span class="identifier">xml_document</span></code> is the owner - of the entire document structure; it is a non-copyable class. The interface - of <code class="computeroutput"><span class="identifier">xml_document</span></code> consists - of loading functions (see <a class="xref" href="loading.html" title="Loading document"> Loading document</a>), saving functions (see <a class="xref" href="saving.html" title="Saving document"> Saving document</a>) - and the entire interface of <code class="computeroutput"><span class="identifier">xml_node</span></code>, - which allows for document inspection and/or modification. Note that while - <code class="computeroutput"><span class="identifier">xml_document</span></code> is a sub-class - of <code class="computeroutput"><span class="identifier">xml_node</span></code>, <code class="computeroutput"><span class="identifier">xml_node</span></code> is not a polymorphic type; the - inheritance is present only to simplify usage. Alternatively you can use - the <code class="computeroutput"><span class="identifier">document_element</span></code> function - to get the element node that's the immediate child of the document. - </p> -<a name="xml_document::ctor"></a><a name="xml_document::dtor"></a><a name="xml_document::reset"></a><p> - Default constructor of <code class="computeroutput"><span class="identifier">xml_document</span></code> - initializes the document to the tree with only a root node (document node). - You can then populate it with data using either tree modification functions - or loading functions; all loading functions destroy the previous tree with - all occupied memory, which puts existing node/attribute handles for this - document to invalid state. If you want to destroy the previous tree, you - can use the <code class="computeroutput"><span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">reset</span></code> - function; it destroys the tree and replaces it with either an empty one or - a copy of the specified document. Destructor of <code class="computeroutput"><span class="identifier">xml_document</span></code> - also destroys the tree, thus the lifetime of the document object should exceed - the lifetimes of any node/attribute handles that point to the tree. - </p> -<div class="caution"><table border="0" summary="Caution"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="../images/caution.png"></td> -<th align="left">Caution</th> -</tr> -<tr><td align="left" valign="top"><p> - While technically node/attribute handles can be alive when the tree they're - referring to is destroyed, calling any member function for these handles - results in undefined behavior. Thus it is recommended to make sure that - the document is destroyed only after all references to its nodes/attributes - are destroyed. - </p></td></tr> -</table></div> -<a name="xml_node"></a><a name="xml_node::type"></a><p> - <code class="computeroutput"><span class="identifier">xml_node</span></code> is the handle to - document node; it can point to any node in the document, including the document - node itself. There is a common interface for nodes of all types; the actual - <a class="link" href="dom.html#xml_node_type">node type</a> can be queried via the <code class="computeroutput"><span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">type</span><span class="special">()</span></code> - method. Note that <code class="computeroutput"><span class="identifier">xml_node</span></code> - is only a handle to the actual node, not the node itself - you can have several - <code class="computeroutput"><span class="identifier">xml_node</span></code> handles pointing - to the same underlying object. Destroying <code class="computeroutput"><span class="identifier">xml_node</span></code> - handle does not destroy the node and does not remove it from the tree. The - size of <code class="computeroutput"><span class="identifier">xml_node</span></code> is equal - to that of a pointer, so it is nothing more than a lightweight wrapper around - a pointer; you can safely pass or return <code class="computeroutput"><span class="identifier">xml_node</span></code> - objects by value without additional overhead. - </p> -<a name="node_null"></a><p> - There is a special value of <code class="computeroutput"><span class="identifier">xml_node</span></code> - type, known as null node or empty node (such nodes have type <code class="computeroutput"><span class="identifier">node_null</span></code>). It does not correspond to any - node in any document, and thus resembles null pointer. However, all operations - are defined on empty nodes; generally the operations don't do anything and - return empty nodes/attributes or empty strings as their result (see documentation - for specific functions for more detailed information). This is useful for - chaining calls; i.e. you can get the grandparent of a node like so: <code class="computeroutput"><span class="identifier">node</span><span class="special">.</span><span class="identifier">parent</span><span class="special">().</span><span class="identifier">parent</span><span class="special">()</span></code>; if a node is a null node or it does not - have a parent, the first <code class="computeroutput"><span class="identifier">parent</span><span class="special">()</span></code> call returns null node; the second <code class="computeroutput"><span class="identifier">parent</span><span class="special">()</span></code> - call then also returns null node, which makes error handling easier. - </p> -<a name="xml_attribute"></a><p> - <code class="computeroutput"><span class="identifier">xml_attribute</span></code> is the handle - to an XML attribute; it has the same semantics as <code class="computeroutput"><span class="identifier">xml_node</span></code>, - i.e. there can be several <code class="computeroutput"><span class="identifier">xml_attribute</span></code> - handles pointing to the same underlying object and there is a special null - attribute value, which propagates to function results. - </p> -<a name="xml_attribute::ctor"></a><a name="xml_node::ctor"></a><p> - Both <code class="computeroutput"><span class="identifier">xml_node</span></code> and <code class="computeroutput"><span class="identifier">xml_attribute</span></code> have the default constructor - which initializes them to null objects. - </p> -<a name="xml_attribute::comparison"></a><a name="xml_node::comparison"></a><p> - <code class="computeroutput"><span class="identifier">xml_node</span></code> and <code class="computeroutput"><span class="identifier">xml_attribute</span></code> try to behave like pointers, - that is, they can be compared with other objects of the same type, making - it possible to use them as keys in associative containers. All handles to - the same underlying object are equal, and any two handles to different underlying - objects are not equal. Null handles only compare as equal to themselves. - The result of relational comparison can not be reliably determined from the - order of nodes in file or in any other way. Do not use relational comparison - operators except for search optimization (i.e. associative container keys). - </p> -<a name="xml_attribute::hash_value"></a><a name="xml_node::hash_value"></a><p> - If you want to use <code class="computeroutput"><span class="identifier">xml_node</span></code> - or <code class="computeroutput"><span class="identifier">xml_attribute</span></code> objects - as keys in hash-based associative containers, you can use the <code class="computeroutput"><span class="identifier">hash_value</span></code> member functions. They return - the hash values that are guaranteed to be the same for all handles to the - same underlying object. The hash value for null handles is 0. - </p> -<a name="xml_attribute::unspecified_bool_type"></a><a name="xml_node::unspecified_bool_type"></a><a name="xml_attribute::empty"></a><a name="xml_node::empty"></a><p> - Finally handles can be implicitly cast to boolean-like objects, so that you - can test if the node/attribute is empty with the following code: <code class="computeroutput"><span class="keyword">if</span> <span class="special">(</span><span class="identifier">node</span><span class="special">)</span> <span class="special">{</span> <span class="special">...</span> - <span class="special">}</span></code> or <code class="computeroutput"><span class="keyword">if</span> - <span class="special">(!</span><span class="identifier">node</span><span class="special">)</span> <span class="special">{</span> <span class="special">...</span> - <span class="special">}</span> <span class="keyword">else</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span></code>. - Alternatively you can check if a given <code class="computeroutput"><span class="identifier">xml_node</span></code>/<code class="computeroutput"><span class="identifier">xml_attribute</span></code> handle is null by calling - the following methods: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">empty</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">bool</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">empty</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - Nodes and attributes do not exist without a document tree, so you can't create - them without adding them to some document. Once underlying node/attribute - objects are destroyed, the handles to those objects become invalid. While - this means that destruction of the entire tree invalidates all node/attribute - handles, it also means that destroying a subtree (by calling <a class="link" href="modify.html#xml_node::remove_child">xml_node::remove_child</a>) - or removing an attribute invalidates the corresponding handles. There is - no way to check handle validity; you have to ensure correctness through external - mechanisms. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.dom.unicode"></a><a class="link" href="dom.html#manual.dom.unicode" title="Unicode interface"> Unicode interface</a> -</h3></div></div></div> -<p> - There are two choices of interface and internal representation when configuring - pugixml: you can either choose the UTF-8 (also called char) interface or - UTF-16/32 (also called wchar_t) one. The choice is controlled via <a class="link" href="install.html#PUGIXML_WCHAR_MODE">PUGIXML_WCHAR_MODE</a> - define; you can set it via <code class="filename">pugiconfig.hpp</code> or via preprocessor options, as - discussed in <a class="xref" href="install.html#manual.install.building.config" title="Additional configuration options"> Additional configuration - options</a>. If this define is set, the wchar_t - interface is used; otherwise (by default) the char interface is used. The - exact wide character encoding is assumed to be either UTF-16 or UTF-32 and - is determined based on the size of <code class="computeroutput"><span class="keyword">wchar_t</span></code> - type. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - If the size of <code class="computeroutput"><span class="keyword">wchar_t</span></code> is - 2, pugixml assumes UTF-16 encoding instead of UCS-2, which means that some - characters are represented as two code points. - </p></td></tr> -</table></div> -<p> - All tree functions that work with strings work with either C-style null terminated - strings or STL strings of the selected character type. For example, node - name accessors look like this in char mode: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">name</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">bool</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">set_name</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">value</span><span class="special">);</span> -</pre> -<p> - and like this in wchar_t mode: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="keyword">wchar_t</span><span class="special">*</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">name</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">bool</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">set_name</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">wchar_t</span><span class="special">*</span> <span class="identifier">value</span><span class="special">);</span> -</pre> -<a name="char_t"></a><a name="string_t"></a><p> - There is a special type, <code class="computeroutput"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">char_t</span></code>, - that is defined as the character type and depends on the library configuration; - it will be also used in the documentation hereafter. There is also a type - <code class="computeroutput"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">string_t</span></code>, which is defined as the STL string - of the character type; it corresponds to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code> - in char mode and to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring</span></code> in wchar_t mode. - </p> -<p> - In addition to the interface, the internal implementation changes to store - XML data as <code class="computeroutput"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">char_t</span></code>; this means that these two modes - have different memory usage characteristics. The conversion to <code class="computeroutput"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">char_t</span></code> upon document loading and from - <code class="computeroutput"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">char_t</span></code> upon document saving happen automatically, - which also carries minor performance penalty. The general advice however - is to select the character mode based on usage scenario, i.e. if UTF-8 is - inconvenient to process and most of your XML data is non-ASCII, wchar_t mode - is probably a better choice. - </p> -<a name="as_utf8"></a><a name="as_wide"></a><p> - There are cases when you'll have to convert string data between UTF-8 and - wchar_t encodings; the following helper functions are provided for such purposes: - </p> -<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">as_utf8</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">wchar_t</span><span class="special">*</span> <span class="identifier">str</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring</span> <span class="identifier">as_wide</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">str</span><span class="special">);</span> -</pre> -<p> - Both functions accept a null-terminated string as an argument <code class="computeroutput"><span class="identifier">str</span></code>, and return the converted string. - <code class="computeroutput"><span class="identifier">as_utf8</span></code> performs conversion - from UTF-16/32 to UTF-8; <code class="computeroutput"><span class="identifier">as_wide</span></code> - performs conversion from UTF-8 to UTF-16/32. Invalid UTF sequences are silently - discarded upon conversion. <code class="computeroutput"><span class="identifier">str</span></code> - has to be a valid string; passing null pointer results in undefined behavior. - There are also two overloads with the same semantics which accept a string - as an argument: - </p> -<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">as_utf8</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring</span><span class="special">&</span> <span class="identifier">str</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring</span> <span class="identifier">as_wide</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&</span> <span class="identifier">str</span><span class="special">);</span> -</pre> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"> -<p> - Most examples in this documentation assume char interface and therefore - will not compile with <a class="link" href="install.html#PUGIXML_WCHAR_MODE">PUGIXML_WCHAR_MODE</a>. - This is done to simplify the documentation; usually the only changes you'll - have to make is to pass <code class="computeroutput"><span class="keyword">wchar_t</span></code> - string literals, i.e. instead of - </p> -<p> - <code class="computeroutput"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span> - <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"bookstore"</span><span class="special">).</span><span class="identifier">find_child_by_attribute</span><span class="special">(</span><span class="string">"book"</span><span class="special">,</span> <span class="string">"id"</span><span class="special">,</span> <span class="string">"12345"</span><span class="special">);</span></code> - </p> -<p> - you'll have to do - </p> -<p> - <code class="computeroutput"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span> - <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="identifier">L</span><span class="string">"bookstore"</span><span class="special">).</span><span class="identifier">find_child_by_attribute</span><span class="special">(</span><span class="identifier">L</span><span class="string">"book"</span><span class="special">,</span> <span class="identifier">L</span><span class="string">"id"</span><span class="special">,</span> <span class="identifier">L</span><span class="string">"12345"</span><span class="special">);</span></code> - </p> -</td></tr> -</table></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.dom.thread"></a><a class="link" href="dom.html#manual.dom.thread" title="Thread-safety guarantees"> Thread-safety guarantees</a> -</h3></div></div></div> -<p> - Almost all functions in pugixml have the following thread-safety guarantees: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - it is safe to call free (non-member) functions from multiple threads - </li> -<li class="listitem"> - it is safe to perform concurrent read-only accesses to the same tree - (all constant member functions do not modify the tree) - </li> -<li class="listitem"> - it is safe to perform concurrent read/write accesses, if there is only - one read or write access to the single tree at a time - </li> -</ul></div> -<p> - Concurrent modification and traversing of a single tree requires synchronization, - for example via reader-writer lock. Modification includes altering document - structure and altering individual node/attribute data, i.e. changing names/values. - </p> -<p> - The only exception is <a class="link" href="dom.html#set_memory_management_functions">set_memory_management_functions</a>; - it modifies global variables and as such is not thread-safe. Its usage policy - has more restrictions, see <a class="xref" href="dom.html#manual.dom.memory.custom" title="Custom memory allocation/deallocation functions"> Custom memory allocation/deallocation - functions</a>. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.dom.exception"></a><a class="link" href="dom.html#manual.dom.exception" title="Exception guarantees"> Exception guarantees</a> -</h3></div></div></div> -<p> - With the exception of XPath, pugixml itself does not throw any exceptions. - Additionally, most pugixml functions have a no-throw exception guarantee. - </p> -<p> - This is not applicable to functions that operate on STL strings or IOstreams; - such functions have either strong guarantee (functions that operate on strings) - or basic guarantee (functions that operate on streams). Also functions that - call user-defined callbacks (i.e. <a class="link" href="access.html#xml_node::traverse">xml_node::traverse</a> - or <a class="link" href="access.html#xml_node::find_node">xml_node::find_node</a>) do not - provide any exception guarantees beyond the ones provided by the callback. - </p> -<p> - If exception handling is not disabled with <a class="link" href="install.html#PUGIXML_NO_EXCEPTIONS">PUGIXML_NO_EXCEPTIONS</a> - define, XPath functions may throw <a class="link" href="xpath.html#xpath_exception">xpath_exception</a> - on parsing errors; also, XPath functions may throw <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">bad_alloc</span></code> - in low memory conditions. Still, XPath functions provide strong exception - guarantee. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.dom.memory"></a><a class="link" href="dom.html#manual.dom.memory" title="Memory management"> Memory management</a> -</h3></div></div></div> -<p> - pugixml requests the memory needed for document storage in big chunks, and - allocates document data inside those chunks. This section discusses replacing - functions used for chunk allocation and internal memory management implementation. - </p> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.dom.memory.custom"></a><a class="link" href="dom.html#manual.dom.memory.custom" title="Custom memory allocation/deallocation functions"> Custom memory allocation/deallocation - functions</a> -</h4></div></div></div> -<a name="allocation_function"></a><a name="deallocation_function"></a><p> - All memory for tree structure, tree data and XPath objects is allocated - via globally specified functions, which default to malloc/free. You can - set your own allocation functions with set_memory_management function. - The function interfaces are the same as that of malloc/free: - </p> -<pre class="programlisting"><span class="keyword">typedef</span> <span class="keyword">void</span><span class="special">*</span> <span class="special">(*</span><span class="identifier">allocation_function</span><span class="special">)(</span><span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">);</span> -<span class="keyword">typedef</span> <span class="keyword">void</span> <span class="special">(*</span><span class="identifier">deallocation_function</span><span class="special">)(</span><span class="keyword">void</span><span class="special">*</span> <span class="identifier">ptr</span><span class="special">);</span> -</pre> -<a name="set_memory_management_functions"></a><a name="get_memory_allocation_function"></a><a name="get_memory_deallocation_function"></a><p> - You can use the following accessor functions to change or get current memory - management functions: - </p> -<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">set_memory_management_functions</span><span class="special">(</span><span class="identifier">allocation_function</span> <span class="identifier">allocate</span><span class="special">,</span> <span class="identifier">deallocation_function</span> <span class="identifier">deallocate</span><span class="special">);</span> -<span class="identifier">allocation_function</span> <span class="identifier">get_memory_allocation_function</span><span class="special">();</span> -<span class="identifier">deallocation_function</span> <span class="identifier">get_memory_deallocation_function</span><span class="special">();</span> -</pre> -<p> - Allocation function is called with the size (in bytes) as an argument and - should return a pointer to a memory block with alignment that is suitable - for storage of primitive types (usually a maximum of <code class="computeroutput"><span class="keyword">void</span><span class="special">*</span></code> and <code class="computeroutput"><span class="keyword">double</span></code> - types alignment is sufficient) and size that is greater than or equal to - the requested one. If the allocation fails, the function has to return - null pointer (throwing an exception from allocation function results in - undefined behavior). - </p> -<p> - Deallocation function is called with the pointer that was returned by some - call to allocation function; it is never called with a null pointer. If - memory management functions are not thread-safe, library thread safety - is not guaranteed. - </p> -<p> - This is a simple example of custom memory management (<a href="../samples/custom_memory_management.cpp" target="_top">samples/custom_memory_management.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">void</span><span class="special">*</span> <span class="identifier">custom_allocate</span><span class="special">(</span><span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">)</span> -<span class="special">{</span> - <span class="keyword">return</span> <span class="keyword">new</span> <span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">nothrow</span><span class="special">)</span> <span class="keyword">char</span><span class="special">[</span><span class="identifier">size</span><span class="special">];</span> -<span class="special">}</span> - -<span class="keyword">void</span> <span class="identifier">custom_deallocate</span><span class="special">(</span><span class="keyword">void</span><span class="special">*</span> <span class="identifier">ptr</span><span class="special">)</span> -<span class="special">{</span> - <span class="keyword">delete</span><span class="special">[]</span> <span class="keyword">static_cast</span><span class="special"><</span><span class="keyword">char</span><span class="special">*>(</span><span class="identifier">ptr</span><span class="special">);</span> -<span class="special">}</span> -</pre> -<p> - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">set_memory_management_functions</span><span class="special">(</span><span class="identifier">custom_allocate</span><span class="special">,</span> <span class="identifier">custom_deallocate</span><span class="special">);</span> -</pre> -<p> - </p> -<p> - When setting new memory management functions, care must be taken to make - sure that there are no live pugixml objects. Otherwise when the objects - are destroyed, the new deallocation function will be called with the memory - obtained by the old allocation function, resulting in undefined behavior. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.dom.memory.tuning"></a><a class="link" href="dom.html#manual.dom.memory.tuning" title="Memory consumption tuning"> Memory consumption tuning</a> -</h4></div></div></div> -<p> - There are several important buffering optimizations in pugixml that rely - on predefined constants. These constants have default values that were - tuned for common usage patterns; for some applications, changing these - constants might improve memory consumption or increase performance. Changing - these constants is not recommended unless their default values result in - visible problems. - </p> -<p> - These constants can be tuned via configuration defines, as discussed in - <a class="xref" href="install.html#manual.install.building.config" title="Additional configuration options"> Additional configuration - options</a>; it is recommended to set them in <code class="filename">pugiconfig.hpp</code>. - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">PUGIXML_MEMORY_PAGE_SIZE</span></code> - controls the page size for document memory allocation. Memory for node/attribute - objects is allocated in pages of the specified size. The default size - is 32 Kb; for some applications the size is too large (i.e. embedded - systems with little heap space or applications that keep lots of XML - documents in memory). A minimum size of 1 Kb is recommended. <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">PUGIXML_MEMORY_OUTPUT_STACK</span></code> - controls the cumulative stack space required to output the node. Any - output operation (i.e. saving a subtree to file) uses an internal buffering - scheme for performance reasons. The default size is 10 Kb; if you're - using node output from threads with little stack space, decreasing - this value can prevent stack overflows. A minimum size of 1 Kb is recommended. - <br><br> - - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">PUGIXML_MEMORY_XPATH_PAGE_SIZE</span></code> - controls the page size for XPath memory allocation. Memory for XPath - query objects as well as internal memory for XPath evaluation is allocated - in pages of the specified size. The default size is 4 Kb; if you have - a lot of resident XPath query objects, you might need to decrease the - size to improve memory consumption. A minimum size of 256 bytes is - recommended. - </li> -</ul></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.dom.memory.internals"></a><a class="link" href="dom.html#manual.dom.memory.internals" title="Document memory management internals"> Document memory management - internals</a> -</h4></div></div></div> -<p> - Constructing a document object using the default constructor does not result - in any allocations; document node is stored inside the <a class="link" href="dom.html#xml_document">xml_document</a> - object. - </p> -<p> - When the document is loaded from file/buffer, unless an inplace loading - function is used (see <a class="xref" href="loading.html#manual.loading.memory" title="Loading document from memory"> Loading document from memory</a>), a complete copy of character - stream is made; all names/values of nodes and attributes are allocated - in this buffer. This buffer is allocated via a single large allocation - and is only freed when document memory is reclaimed (i.e. if the <a class="link" href="dom.html#xml_document">xml_document</a> object is destroyed or if another - document is loaded in the same object). Also when loading from file or - stream, an additional large allocation may be performed if encoding conversion - is required; a temporary buffer is allocated, and it is freed before load - function returns. - </p> -<p> - All additional memory, such as memory for document structure (node/attribute - objects) and memory for node/attribute names/values is allocated in pages - on the order of 32 kilobytes; actual objects are allocated inside the pages - using a memory management scheme optimized for fast allocation/deallocation - of many small objects. Because of the scheme specifics, the pages are only - destroyed if all objects inside them are destroyed; also, generally destroying - an object does not mean that subsequent object creation will reuse the - same memory. This means that it is possible to devise a usage scheme which - will lead to higher memory usage than expected; one example is adding a - lot of nodes, and them removing all even numbered ones; not a single page - is reclaimed in the process. However this is an example specifically crafted - to produce unsatisfying behavior; in all practical usage scenarios the - memory consumption is less than that of a general-purpose allocator because - allocation meta-data is very small in size. - </p> -</div> -</div> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2014 Arseny Kapoulkine<p> - Distributed under the MIT License - </p> -</div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <b>Object model</b> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="install.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="loading.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -</body> -</html> diff --git a/docs/manual/install.html b/docs/manual/install.html deleted file mode 100644 index 334bf2e..0000000 --- a/docs/manual/install.html +++ /dev/null @@ -1,517 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>Installation</title> -<link rel="stylesheet" href="../pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../manual.html" title="pugixml 1.6"> -<link rel="up" href="../manual.html" title="pugixml 1.6"> -<link rel="prev" href="../manual.html" title="pugixml 1.6"> -<link rel="next" href="dom.html" title="Document object model"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <b>Installation</b> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="../manual.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="dom.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -<hr> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.install"></a><a class="link" href="install.html" title="Installation"> Installation</a> -</h2></div></div></div> -<div class="toc"><dl class="toc"> -<dt><span class="section"><a href="install.html#manual.install.getting"> Getting pugixml</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="install.html#manual.install.getting.source"> Source distributions</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.getting.git"> Git repository</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.getting.subversion"> Subversion repository</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="install.html#manual.install.building"> Building pugixml</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="install.html#manual.install.building.embed"> Building pugixml as - a part of another static library/executable</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.building.static"> Building pugixml as - a standalone static library</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.building.shared"> Building pugixml as - a standalone shared library</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.building.header"> Using pugixml in header-only - mode</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.building.config"> Additional configuration - options</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="install.html#manual.install.portability"> Portability</a></span></dt> -</dl></div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.install.getting"></a><a class="link" href="install.html#manual.install.getting" title="Getting pugixml"> Getting pugixml</a> -</h3></div></div></div> -<p> - pugixml is distributed in source form. You can either download a source distribution - or clone the Git repository. - </p> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.install.getting.source"></a><a class="link" href="install.html#manual.install.getting.source" title="Source distributions"> Source distributions</a> -</h4></div></div></div> -<p> - You can download the latest source distribution via one of the following - links: - </p> -<pre class="programlisting"><a href="https://github.com/zeux/pugixml/releases/download/v1.6/pugixml-1.6.zip" target="_top">https://github.com/zeux/pugixml/releases/download/v1.6/pugixml-1.6.zip</a> -<a href="https://github.com/zeux/pugixml/releases/download/v1.6/pugixml-1.6.tar.gz" target="_top">https://github.com/zeux/pugixml/releases/download/v1.6/pugixml-1.6.tar.gz</a> -</pre> -<p> - The distribution contains library source, documentation (the manual you're - reading now and the quick start guide) and some code examples. After downloading - the distribution, install pugixml by extracting all files from the compressed - archive. The files have different line endings depending on the archive - format - <code class="filename">.zip</code> archive has Windows line endings, <code class="filename">.tar.gz</code> archive has Unix - line endings. Otherwise the files in both archives are identical. - </p> -<p> - If you need an older version, you can download it from the <a href="https://github.com/zeux/pugixml/releases" target="_top">version - archive</a>. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.install.getting.git"></a><a class="link" href="install.html#manual.install.getting.git" title="Git repository"> Git repository</a> -</h4></div></div></div> -<p> - The Git repository is located at <a href="https://github.com/zeux/pugixml/" target="_top">https://github.com/zeux/pugixml/</a>. - There is a Git tag "v{version}" for each version; also there - is the "latest" tag, which always points to the latest stable - release. - </p> -<p> - For example, to checkout the current version, you can use this command: - </p> -<pre class="programlisting">git clone https://github.com/zeux/pugixml -cd pugixml -git checkout v1.6 -</pre> -<p> - The repository contains library source, documentation, code examples and - full unit test suite. - </p> -<p> - Use latest version tag if you want to automatically get new versions. Use - other tags if you want to switch to new versions only explicitly. Also - please note that the master branch contains the work-in-progress version - of the code; while this means that you can get new features and bug fixes - from master without waiting for a new release, this also means that occasionally - the code can be broken in some configurations. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.install.getting.subversion"></a><a class="link" href="install.html#manual.install.getting.subversion" title="Subversion repository"> Subversion repository</a> -</h4></div></div></div> -<p> - You can access the Git repository via Subversion using <a href="https://github.com/zeux/pugixml" target="_top">https://github.com/zeux/pugixml</a> - URL. For example, to checkout the current version, you can use this command: - </p> -<pre class="programlisting">svn checkout https://github.com/zeux/pugixml/tags/v1.6 pugixml</pre> -</div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.install.building"></a><a class="link" href="install.html#manual.install.building" title="Building pugixml"> Building pugixml</a> -</h3></div></div></div> -<p> - pugixml is distributed in source form without any pre-built binaries; you - have to build them yourself. - </p> -<p> - The complete pugixml source consists of three files - one source file, <code class="filename">pugixml.cpp</code>, - and two header files, <code class="filename">pugixml.hpp</code> and <code class="filename">pugiconfig.hpp</code>. <code class="filename">pugixml.hpp</code> is the primary - header which you need to include in order to use pugixml classes/functions; - <code class="filename">pugiconfig.hpp</code> is a supplementary configuration file (see <a class="xref" href="install.html#manual.install.building.config" title="Additional configuration options"> Additional configuration - options</a>). - The rest of this guide assumes that <code class="filename">pugixml.hpp</code> is either in the current directory - or in one of include directories of your projects, so that <code class="computeroutput"><span class="preprocessor">#include</span> <span class="string">"pugixml.hpp"</span></code> - can find the header; however you can also use relative path (i.e. <code class="computeroutput"><span class="preprocessor">#include</span> <span class="string">"../libs/pugixml/src/pugixml.hpp"</span></code>) - or include directory-relative path (i.e. <code class="computeroutput"><span class="preprocessor">#include</span> - <span class="special"><</span><span class="identifier">xml</span><span class="special">/</span><span class="identifier">thirdparty</span><span class="special">/</span><span class="identifier">pugixml</span><span class="special">/</span><span class="identifier">src</span><span class="special">/</span><span class="identifier">pugixml</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>). - </p> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.install.building.embed"></a><a class="link" href="install.html#manual.install.building.embed" title="Building pugixml as a part of another static library/executable"> Building pugixml as - a part of another static library/executable</a> -</h4></div></div></div> -<p> - The easiest way to build pugixml is to compile the source file, <code class="filename">pugixml.cpp</code>, - along with the existing library/executable. This process depends on the - method of building your application; for example, if you're using Microsoft - Visual Studio<a href="#ftn.trademarks" class="footnote" name="trademarks"><sup class="footnote">[1]</sup></a>, Apple Xcode, Code::Blocks or any other IDE, just add <code class="filename">pugixml.cpp</code> to - one of your projects. - </p> -<p> - If you're using Microsoft Visual Studio and the project has precompiled - headers turned on, you'll see the following error messages: - </p> -<pre class="programlisting">pugixml.cpp(3477) : fatal error C1010: unexpected end of file while looking for precompiled header. Did you forget to add '#include "stdafx.h"' to your source?</pre> -<p> - The correct way to resolve this is to disable precompiled headers for <code class="filename">pugixml.cpp</code>; - you have to set "Create/Use Precompiled Header" option (Properties - dialog -> C/C++ -> Precompiled Headers -> Create/Use Precompiled - Header) to "Not Using Precompiled Headers". You'll have to do - it for all project configurations/platforms (you can select Configuration - "All Configurations" and Platform "All Platforms" before - editing the option): - </p> -<div class="informaltable"><table class="table"> -<colgroup><col></colgroup> -<tbody><tr><td> - <p> - <a href="../images/vs2005_pch1.png" target="_top"><span class="inlinemediaobject"><img src="../images/vs2005_pch1_thumb.png" alt="vs2005_pch1_thumb"></span></a> <span class="inlinemediaobject"><img src="../images/next.png" alt="next"></span> <a href="../images/vs2005_pch2.png" target="_top"><span class="inlinemediaobject"><img src="../images/vs2005_pch2_thumb.png" alt="vs2005_pch2_thumb"></span></a> <span class="inlinemediaobject"><img src="../images/next.png" alt="next"></span> <a href="../images/vs2005_pch3.png" target="_top"><span class="inlinemediaobject"><img src="../images/vs2005_pch3_thumb.png" alt="vs2005_pch3_thumb"></span></a> <span class="inlinemediaobject"><img src="../images/next.png" alt="next"></span> <a href="../images/vs2005_pch4.png" target="_top"><span class="inlinemediaobject"><img src="../images/vs2005_pch4_thumb.png" alt="vs2005_pch4_thumb"></span></a> - </p> - </td></tr></tbody> -</table></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.install.building.static"></a><a class="link" href="install.html#manual.install.building.static" title="Building pugixml as a standalone static library"> Building pugixml as - a standalone static library</a> -</h4></div></div></div> -<p> - It's possible to compile pugixml as a standalone static library. This process - depends on the method of building your application; pugixml distribution - comes with project files for several popular IDEs/build systems. There - are project files for Apple XCode3, Code::Blocks, Codelite, Microsoft Visual - Studio 2005, 2008, 2010, and configuration scripts for CMake and premake4. - You're welcome to submit project files/build scripts for other software; - see <a class="xref" href="../manual.html#manual.overview.feedback" title="Feedback"> Feedback</a>. - </p> -<p> - There are two projects for each version of Microsoft Visual Studio: one - for dynamically linked CRT, which has a name like <code class="filename">pugixml_vs2008.vcproj</code>, - and another one for statically linked CRT, which has a name like <code class="filename">pugixml_vs2008_static.vcproj</code>. - You should select the version that matches the CRT used in your application; - the default option for new projects created by Microsoft Visual Studio - is dynamically linked CRT, so unless you changed the defaults, you should - use the version with dynamic CRT (i.e. <code class="filename">pugixml_vs2008.vcproj</code> for Microsoft - Visual Studio 2008). - </p> -<p> - In addition to adding pugixml project to your workspace, you'll have to - make sure that your application links with pugixml library. If you're using - Microsoft Visual Studio 2005/2008, you can add a dependency from your application - project to pugixml one. If you're using Microsoft Visual Studio 2010, you'll - have to add a reference to your application project instead. For other - IDEs/systems, consult the relevant documentation. - </p> -<div class="informaltable"><table class="table"> -<colgroup> -<col> -<col> -</colgroup> -<thead><tr> -<th> - <p> - Microsoft Visual Studio 2005/2008 - </p> - </th> -<th> - <p> - Microsoft Visual Studio 2010 - </p> - </th> -</tr></thead> -<tbody><tr> -<td> - <p> - <a href="../images/vs2005_link1.png" target="_top"><span class="inlinemediaobject"><img src="../images/vs2005_link1_thumb.png" alt="vs2005_link1_thumb"></span></a> <span class="inlinemediaobject"><img src="../images/next.png" alt="next"></span> <a href="../images/vs2005_link2.png" target="_top"><span class="inlinemediaobject"><img src="../images/vs2005_link2_thumb.png" alt="vs2005_link2_thumb"></span></a> - </p> - </td> -<td> - <p> - <a href="../images/vs2010_link1.png" target="_top"><span class="inlinemediaobject"><img src="../images/vs2010_link1_thumb.png" alt="vs2010_link1_thumb"></span></a> <span class="inlinemediaobject"><img src="../images/next.png" alt="next"></span> <a href="../images/vs2010_link2.png" target="_top"><span class="inlinemediaobject"><img src="../images/vs2010_link2_thumb.png" alt="vs2010_link2_thumb"></span></a> - </p> - </td> -</tr></tbody> -</table></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.install.building.shared"></a><a class="link" href="install.html#manual.install.building.shared" title="Building pugixml as a standalone shared library"> Building pugixml as - a standalone shared library</a> -</h4></div></div></div> -<p> - It's possible to compile pugixml as a standalone shared library. The process - is usually similar to the static library approach; however, no preconfigured - projects/scripts are included into pugixml distribution, so you'll have - to do it yourself. Generally, if you're using GCC-based toolchain, the - process does not differ from building any other library as DLL (adding - -shared to compilation flags should suffice); if you're using MSVC-based - toolchain, you'll have to explicitly mark exported symbols with a declspec - attribute. You can do it by defining <a class="link" href="install.html#PUGIXML_API">PUGIXML_API</a> - macro, i.e. via <code class="filename">pugiconfig.hpp</code>: - </p> -<pre class="programlisting"><span class="preprocessor">#ifdef</span> <span class="identifier">_DLL</span> -<span class="preprocessor">#define</span> <span class="identifier">PUGIXML_API</span> <span class="identifier">__declspec</span><span class="special">(</span><span class="identifier">dllexport</span><span class="special">)</span> -<span class="preprocessor">#else</span> -<span class="preprocessor">#define</span> <span class="identifier">PUGIXML_API</span> <span class="identifier">__declspec</span><span class="special">(</span><span class="identifier">dllimport</span><span class="special">)</span> -<span class="preprocessor">#endif</span> -</pre> -<div class="caution"><table border="0" summary="Caution"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="../images/caution.png"></td> -<th align="left">Caution</th> -</tr> -<tr><td align="left" valign="top"><p> - If you're using STL-related functions, you should use the shared runtime - library to ensure that a single heap is used for STL allocations in your - application and in pugixml; in MSVC, this means selecting the 'Multithreaded - DLL' or 'Multithreaded Debug DLL' to 'Runtime library' property (/MD - or /MDd linker switch). You should also make sure that your runtime library - choice is consistent between different projects. - </p></td></tr> -</table></div> -</div> -<a name="PUGIXML_HEADER_ONLY"></a><div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.install.building.header"></a><a class="link" href="install.html#manual.install.building.header" title="Using pugixml in header-only mode"> Using pugixml in header-only - mode</a> -</h4></div></div></div> -<p> - It's possible to use pugixml in header-only mode. This means that all source - code for pugixml will be included in every translation unit that includes - <code class="filename">pugixml.hpp</code>. This is how most of Boost and STL libraries work. - </p> -<p> - Note that there are advantages and drawbacks of this approach. Header mode - may improve tree traversal/modification performance (because many simple - functions will be inlined), if your compiler toolchain does not support - link-time optimization, or if you have it turned off (with link-time optimization - the performance should be similar to non-header mode). However, since compiler - now has to compile pugixml source once for each translation unit that includes - it, compilation times may increase noticeably. If you want to use pugixml - in header mode but do not need XPath support, you can consider disabling - it by using <a class="link" href="install.html#PUGIXML_NO_XPATH">PUGIXML_NO_XPATH</a> define - to improve compilation time. - </p> -<p> - Enabling header-only mode is a two-step process: - </p> -<div class="orderedlist"><ol class="orderedlist" type="1"> -<li class="listitem"> - You have to define <code class="computeroutput"><span class="identifier">PUGIXML_HEADER_ONLY</span></code> - </li> -<li class="listitem"> - You have to include <code class="filename">pugixml.cpp</code> whenever you include pugixml.hpp - </li> -</ol></div> -<p> - Both of these are best done via <code class="filename">pugiconfig.hpp</code> like this: - </p> -<pre class="programlisting"><span class="preprocessor">#define</span> <span class="identifier">PUGIXML_HEADER_ONLY</span> -<span class="preprocessor">#include</span> <span class="string">"pugixml.cpp"</span> -</pre> -<p> - Note that it is safe to compile <code class="filename">pugixml.cpp</code> if <code class="computeroutput"><span class="identifier">PUGIXML_HEADER_ONLY</span></code> - is defined - so if you want to i.e. use header-only mode only in Release - configuration, you can include pugixml.cpp in your project (see <a class="xref" href="install.html#manual.install.building.embed" title="Building pugixml as a part of another static library/executable"> Building pugixml as - a part of another static library/executable</a>), - and conditionally enable header-only mode in <code class="filename">pugiconfig.hpp</code>, i.e.: - </p> -<pre class="programlisting"><span class="preprocessor">#ifndef</span> <span class="identifier">_DEBUG</span> - <span class="preprocessor">#define</span> <span class="identifier">PUGIXML_HEADER_ONLY</span> - <span class="preprocessor">#include</span> <span class="string">"pugixml.cpp"</span> -<span class="preprocessor">#endif</span> -</pre> -</div> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="manual.install.building.config"></a><a class="link" href="install.html#manual.install.building.config" title="Additional configuration options"> Additional configuration - options</a> -</h4></div></div></div> -<p> - pugixml uses several defines to control the compilation process. There - are two ways to define them: either put the needed definitions to <code class="filename">pugiconfig.hpp</code> (it - has some examples that are commented out) or provide them via compiler - command-line. Consistency is important: the definitions should match in - all source files that include <code class="filename">pugixml.hpp</code> (including pugixml sources) throughout - the application. Adding defines to <code class="filename">pugiconfig.hpp</code> lets you guarantee this, - unless your macro definition is wrapped in preprocessor <code class="computeroutput"><span class="preprocessor">#if</span></code>/<code class="computeroutput"><span class="preprocessor">#ifdef</span></code> directive and this directive - is not consistent. <code class="filename">pugiconfig.hpp</code> will never contain anything but comments, - which means that when upgrading to a new version, you can safely leave - your modified version intact. - </p> -<p> - <a name="PUGIXML_WCHAR_MODE"></a><code class="literal">PUGIXML_WCHAR_MODE</code> define toggles - between UTF-8 style interface (the in-memory text encoding is assumed to - be UTF-8, most functions use <code class="computeroutput"><span class="keyword">char</span></code> - as character type) and UTF-16/32 style interface (the in-memory text encoding - is assumed to be UTF-16/32, depending on <code class="computeroutput"><span class="keyword">wchar_t</span></code> - size, most functions use <code class="computeroutput"><span class="keyword">wchar_t</span></code> - as character type). See <a class="xref" href="dom.html#manual.dom.unicode" title="Unicode interface"> Unicode interface</a> for more details. - </p> -<p> - <a name="PUGIXML_NO_XPATH"></a><code class="literal">PUGIXML_NO_XPATH</code> define disables XPath. - Both XPath interfaces and XPath implementation are excluded from compilation. - This option is provided in case you do not need XPath functionality and - need to save code space. - </p> -<p> - <a name="PUGIXML_NO_STL"></a><code class="literal">PUGIXML_NO_STL</code> define disables use of - STL in pugixml. The functions that operate on STL types are no longer present - (i.e. load/save via iostream) if this macro is defined. This option is - provided in case your target platform does not have a standard-compliant - STL implementation. - </p> -<p> - <a name="PUGIXML_NO_EXCEPTIONS"></a><code class="literal">PUGIXML_NO_EXCEPTIONS</code> define disables - use of exceptions in pugixml. This option is provided in case your target - platform does not have exception handling capabilities. - </p> -<p> - <a name="PUGIXML_API"></a><code class="literal">PUGIXML_API</code>, <a name="PUGIXML_CLASS"></a><code class="literal">PUGIXML_CLASS</code> - and <a name="PUGIXML_FUNCTION"></a><code class="literal">PUGIXML_FUNCTION</code> defines let you - specify custom attributes (i.e. declspec or calling conventions) for pugixml - classes and non-member functions. In absence of <code class="computeroutput"><span class="identifier">PUGIXML_CLASS</span></code> - or <code class="computeroutput"><span class="identifier">PUGIXML_FUNCTION</span></code> definitions, - <code class="computeroutput"><span class="identifier">PUGIXML_API</span></code> definition - is used instead. For example, to specify fixed calling convention, you - can define <code class="computeroutput"><span class="identifier">PUGIXML_FUNCTION</span></code> - to i.e. <code class="computeroutput"><span class="identifier">__fastcall</span></code>. Another - example is DLL import/export attributes in MSVC (see <a class="xref" href="install.html#manual.install.building.shared" title="Building pugixml as a standalone shared library"> Building pugixml as - a standalone shared library</a>). - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - In that example <code class="computeroutput"><span class="identifier">PUGIXML_API</span></code> - is inconsistent between several source files; this is an exception to - the consistency rule. - </p></td></tr> -</table></div> -<p> - <a name="PUGIXML_MEMORY_PAGE_SIZE"></a><code class="literal">PUGIXML_MEMORY_PAGE_SIZE</code>, <a name="PUGIXML_MEMORY_OUTPUT_STACK"></a><code class="literal">PUGIXML_MEMORY_OUTPUT_STACK</code> - and <a name="PUGIXML_MEMORY_XPATH_PAGE_SIZE"></a><code class="literal">PUGIXML_MEMORY_XPATH_PAGE_SIZE</code> - can be used to customize certain important sizes to optimize memory usage - for the application-specific patterns. For details see <a class="xref" href="dom.html#manual.dom.memory.tuning" title="Memory consumption tuning"> Memory consumption tuning</a>. - </p> -<p> - <a name="PUGIXML_HAS_LONG_LONG"></a><code class="literal">PUGIXML_HAS_LONG_LONG</code> define enables - support for <code class="computeroutput"><span class="keyword">long</span> <span class="keyword">long</span></code> - type in pugixml. This define is automatically enabled if your platform - is known to have <code class="computeroutput"><span class="keyword">long</span> <span class="keyword">long</span></code> - support (i.e. has C++-11 support or uses a reasonably modern version of - a known compiler); if pugixml does not recognize that your platform supports - <code class="computeroutput"><span class="keyword">long</span> <span class="keyword">long</span></code> - but in fact it does, you can enable the define manually. - </p> -</div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.install.portability"></a><a class="link" href="install.html#manual.install.portability" title="Portability"> Portability</a> -</h3></div></div></div> -<p> - pugixml is written in standard-compliant C++ with some compiler-specific - workarounds where appropriate. pugixml is compatible with the C++11 standard, - but does not require C++11 support. Each version is tested with a unit test - suite (with code coverage about 99%) on the following platforms: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Microsoft Windows: - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - Borland C++ Compiler 5.82 - </li> -<li class="listitem"> - Digital Mars C++ Compiler 8.51 - </li> -<li class="listitem"> - Intel C++ Compiler 8.0, 9.0 x86/x64, 10.0 x86/x64, 11.0 x86/x64 - </li> -<li class="listitem"> - Metrowerks CodeWarrior 8.0 - </li> -<li class="listitem"> - Microsoft Visual C++ 6.0, 7.0 (2002), 7.1 (2003), 8.0 (2005) x86/x64, - 9.0 (2008) x86/x64, 10.0 (2010) x86/x64, 11.0 (2011) x86/x64/ARM, - 12.0 (2013) x86/x64/ARM and some CLR versions - </li> -<li class="listitem"> - MinGW (GCC) 3.4, 4.4, 4.5, 4.6 x64 - </li> -</ul></div> - </li> -<li class="listitem"> - Linux (GCC 4.4.3 x86/x64, GCC 4.8.1 x64, Clang 3.2 x64) - </li> -<li class="listitem"> - FreeBSD (GCC 4.2.1 x86/x64) - </li> -<li class="listitem"> - Apple MacOSX (GCC 4.0.1 x86/x64/PowerPC) - </li> -<li class="listitem"> - Sun Solaris (sunCC x86/x64) - </li> -<li class="listitem"> - Microsoft Xbox 360 - </li> -<li class="listitem"> - Nintendo Wii (Metrowerks CodeWarrior 4.1) - </li> -<li class="listitem"> - Sony Playstation Portable (GCC 3.4.2) - </li> -<li class="listitem"> - Sony Playstation 3 (GCC 4.1.1, SNC 310.1) - </li> -<li class="listitem"> - Various portable platforms (Android NDK, BlackBerry NDK, Samsung bada, - Windows CE) - </li> -</ul></div> -</div> -<div class="footnotes"> -<br><hr style="width:100; text-align:left;margin-left: 0"> -<div id="ftn.trademarks" class="footnote"><p><a href="#trademarks" class="para"><sup class="para">[1] </sup></a>All trademarks used are properties of their respective - owners.</p></div> -</div> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2014 Arseny Kapoulkine<p> - Distributed under the MIT License - </p> -</div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <b>Installation</b> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="../manual.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="dom.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -</body> -</html> diff --git a/docs/manual/loading.html b/docs/manual/loading.html deleted file mode 100644 index 1d45868..0000000 --- a/docs/manual/loading.html +++ /dev/null @@ -1,914 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>Loading document</title> -<link rel="stylesheet" href="../pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../manual.html" title="pugixml 1.6"> -<link rel="up" href="../manual.html" title="pugixml 1.6"> -<link rel="prev" href="dom.html" title="Document object model"> -<link rel="next" href="access.html" title="Accessing document data"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <b>Loading</b> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="dom.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="access.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -<hr> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.loading"></a><a class="link" href="loading.html" title="Loading document"> Loading document</a> -</h2></div></div></div> -<div class="toc"><dl class="toc"> -<dt><span class="section"><a href="loading.html#manual.loading.file"> Loading document from file</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.memory"> Loading document from memory</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.stream"> Loading document from C++ IOstreams</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.errors"> Handling parsing errors</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.options"> Parsing options</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.encoding"> Encodings</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.w3c"> Conformance to W3C specification</a></span></dt> -</dl></div> -<p> - pugixml provides several functions for loading XML data from various places - - files, C++ iostreams, memory buffers. All functions use an extremely fast - non-validating parser. This parser is not fully W3C conformant - it can load - any valid XML document, but does not perform some well-formedness checks. While - considerable effort is made to reject invalid XML documents, some validation - is not performed for performance reasons. Also some XML transformations (i.e. - EOL handling or attribute value normalization) can impact parsing speed and - thus can be disabled. However for vast majority of XML documents there is no - performance difference between different parsing options. Parsing options also - control whether certain XML nodes are parsed; see <a class="xref" href="loading.html#manual.loading.options" title="Parsing options"> Parsing options</a> for - more information. - </p> -<p> - XML data is always converted to internal character format (see <a class="xref" href="dom.html#manual.dom.unicode" title="Unicode interface"> Unicode interface</a>) - before parsing. pugixml supports all popular Unicode encodings (UTF-8, UTF-16 - (big and little endian), UTF-32 (big and little endian); UCS-2 is naturally - supported since it's a strict subset of UTF-16) and handles all encoding conversions - automatically. Unless explicit encoding is specified, loading functions perform - automatic encoding detection based on first few characters of XML data, so - in almost all cases you do not have to specify document encoding. Encoding - conversion is described in more detail in <a class="xref" href="loading.html#manual.loading.encoding" title="Encodings"> Encodings</a>. - </p> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.loading.file"></a><a class="link" href="loading.html#manual.loading.file" title="Loading document from file"> Loading document from file</a> -</h3></div></div></div> -<a name="xml_document::load_file"></a><a name="xml_document::load_file_wide"></a><p> - The most common source of XML data is files; pugixml provides dedicated functions - for loading an XML document from file: - </p> -<pre class="programlisting"><span class="identifier">xml_parse_result</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load_file</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">path</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">options</span> <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span> -<span class="identifier">xml_parse_result</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load_file</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">wchar_t</span><span class="special">*</span> <span class="identifier">path</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">options</span> <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span> -</pre> -<p> - These functions accept the file path as its first argument, and also two - optional arguments, which specify parsing options (see <a class="xref" href="loading.html#manual.loading.options" title="Parsing options"> Parsing options</a>) - and input data encoding (see <a class="xref" href="loading.html#manual.loading.encoding" title="Encodings"> Encodings</a>). The path has the target - operating system format, so it can be a relative or absolute one, it should - have the delimiters of the target system, it should have the exact case if - the target file system is case-sensitive, etc. - </p> -<p> - File path is passed to the system file opening function as is in case of - the first function (which accepts <code class="computeroutput"><span class="keyword">const</span> - <span class="keyword">char</span><span class="special">*</span> <span class="identifier">path</span></code>); the second function either uses - a special file opening function if it is provided by the runtime library - or converts the path to UTF-8 and uses the system file opening function. - </p> -<p> - <code class="computeroutput"><span class="identifier">load_file</span></code> destroys the existing - document tree and then tries to load the new tree from the specified file. - The result of the operation is returned in an <a class="link" href="loading.html#xml_parse_result">xml_parse_result</a> - object; this object contains the operation status and the related information - (i.e. last successfully parsed position in the input file, if parsing fails). - See <a class="xref" href="loading.html#manual.loading.errors" title="Handling parsing errors"> Handling parsing errors</a> for error handling details. - </p> -<p> - This is an example of loading XML document from file (<a href="../samples/load_file.cpp" target="_top">samples/load_file.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span> <span class="identifier">doc</span><span class="special">;</span> - -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_file</span><span class="special">(</span><span class="string">"tree.xml"</span><span class="special">);</span> - -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Load result: "</span> <span class="special"><<</span> <span class="identifier">result</span><span class="special">.</span><span class="identifier">description</span><span class="special">()</span> <span class="special"><<</span> <span class="string">", mesh name: "</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"mesh"</span><span class="special">).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"name"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.loading.memory"></a><a class="link" href="loading.html#manual.loading.memory" title="Loading document from memory"> Loading document from memory</a> -</h3></div></div></div> -<a name="xml_document::load_buffer"></a><a name="xml_document::load_buffer_inplace"></a><a name="xml_document::load_buffer_inplace_own"></a><p> - Sometimes XML data should be loaded from some other source than a file, i.e. - HTTP URL; also you may want to load XML data from file using non-standard - functions, i.e. to use your virtual file system facilities or to load XML - from gzip-compressed files. All these scenarios require loading document - from memory. First you should prepare a contiguous memory block with all - XML data; then you have to invoke one of buffer loading functions. These - functions will handle the necessary encoding conversions, if any, and then - will parse the data into the corresponding XML tree. There are several buffer - loading functions, which differ in the behavior and thus in performance/memory - usage: - </p> -<pre class="programlisting"><span class="identifier">xml_parse_result</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load_buffer</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">void</span><span class="special">*</span> <span class="identifier">contents</span><span class="special">,</span> <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">options</span> <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span> -<span class="identifier">xml_parse_result</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load_buffer_inplace</span><span class="special">(</span><span class="keyword">void</span><span class="special">*</span> <span class="identifier">contents</span><span class="special">,</span> <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">options</span> <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span> -<span class="identifier">xml_parse_result</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load_buffer_inplace_own</span><span class="special">(</span><span class="keyword">void</span><span class="special">*</span> <span class="identifier">contents</span><span class="special">,</span> <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">options</span> <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span> -</pre> -<p> - All functions accept the buffer which is represented by a pointer to XML - data, <code class="computeroutput"><span class="identifier">contents</span></code>, and data - size in bytes. Also there are two optional arguments, which specify parsing - options (see <a class="xref" href="loading.html#manual.loading.options" title="Parsing options"> Parsing options</a>) and input data encoding (see <a class="xref" href="loading.html#manual.loading.encoding" title="Encodings"> Encodings</a>). - The buffer does not have to be zero-terminated. - </p> -<p> - <code class="computeroutput"><span class="identifier">load_buffer</span></code> function works - with immutable buffer - it does not ever modify the buffer. Because of this - restriction it has to create a private buffer and copy XML data to it before - parsing (applying encoding conversions if necessary). This copy operation - carries a performance penalty, so inplace functions are provided - <code class="computeroutput"><span class="identifier">load_buffer_inplace</span></code> and <code class="computeroutput"><span class="identifier">load_buffer_inplace_own</span></code> - store the document data in the buffer, modifying it in the process. In order - for the document to stay valid, you have to make sure that the buffer's lifetime - exceeds that of the tree if you're using inplace functions. In addition to - that, <code class="computeroutput"><span class="identifier">load_buffer_inplace</span></code> - does not assume ownership of the buffer, so you'll have to destroy it yourself; - <code class="computeroutput"><span class="identifier">load_buffer_inplace_own</span></code> assumes - ownership of the buffer and destroys it once it is not needed. This means - that if you're using <code class="computeroutput"><span class="identifier">load_buffer_inplace_own</span></code>, - you have to allocate memory with pugixml allocation function (you can get - it via <a class="link" href="dom.html#get_memory_allocation_function">get_memory_allocation_function</a>). - </p> -<p> - The best way from the performance/memory point of view is to load document - using <code class="computeroutput"><span class="identifier">load_buffer_inplace_own</span></code>; - this function has maximum control of the buffer with XML data so it is able - to avoid redundant copies and reduce peak memory usage while parsing. This - is the recommended function if you have to load the document from memory - and performance is critical. - </p> -<a name="xml_document::load_string"></a><p> - There is also a simple helper function for cases when you want to load the - XML document from null-terminated character string: - </p> -<pre class="programlisting"><span class="identifier">xml_parse_result</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load_string</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">contents</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">options</span> <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">);</span> -</pre> -<p> - It is equivalent to calling <code class="computeroutput"><span class="identifier">load_buffer</span></code> - with <code class="computeroutput"><span class="identifier">size</span></code> being either <code class="computeroutput"><span class="identifier">strlen</span><span class="special">(</span><span class="identifier">contents</span><span class="special">)</span></code> - or <code class="computeroutput"><span class="identifier">wcslen</span><span class="special">(</span><span class="identifier">contents</span><span class="special">)</span> <span class="special">*</span> <span class="keyword">sizeof</span><span class="special">(</span><span class="keyword">wchar_t</span><span class="special">)</span></code>, - depending on the character type. This function assumes native encoding for - input data, so it does not do any encoding conversion. In general, this function - is fine for loading small documents from string literals, but has more overhead - and less functionality than the buffer loading functions. - </p> -<p> - This is an example of loading XML document from memory using different functions - (<a href="../samples/load_memory.cpp" target="_top">samples/load_memory.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">const</span> <span class="keyword">char</span> <span class="identifier">source</span><span class="special">[]</span> <span class="special">=</span> <span class="string">"<mesh name='sphere'><bounds>0 0 1 1</bounds></mesh>"</span><span class="special">;</span> -<span class="identifier">size_t</span> <span class="identifier">size</span> <span class="special">=</span> <span class="keyword">sizeof</span><span class="special">(</span><span class="identifier">source</span><span class="special">);</span> -</pre> -<p> - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// You can use load_buffer to load document from immutable memory block: -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_buffer</span><span class="special">(</span><span class="identifier">source</span><span class="special">,</span> <span class="identifier">size</span><span class="special">);</span> -</pre> -<p> - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// You can use load_buffer_inplace to load document from mutable memory block; the block's lifetime must exceed that of document -</span><span class="keyword">char</span><span class="special">*</span> <span class="identifier">buffer</span> <span class="special">=</span> <span class="keyword">new</span> <span class="keyword">char</span><span class="special">[</span><span class="identifier">size</span><span class="special">];</span> -<span class="identifier">memcpy</span><span class="special">(</span><span class="identifier">buffer</span><span class="special">,</span> <span class="identifier">source</span><span class="special">,</span> <span class="identifier">size</span><span class="special">);</span> - -<span class="comment">// The block can be allocated by any method; the block is modified during parsing -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_buffer_inplace</span><span class="special">(</span><span class="identifier">buffer</span><span class="special">,</span> <span class="identifier">size</span><span class="special">);</span> - -<span class="comment">// You have to destroy the block yourself after the document is no longer used -</span><span class="keyword">delete</span><span class="special">[]</span> <span class="identifier">buffer</span><span class="special">;</span> -</pre> -<p> - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// You can use load_buffer_inplace_own to load document from mutable memory block and to pass the ownership of this block -</span><span class="comment">// The block has to be allocated via pugixml allocation function - using i.e. operator new here is incorrect -</span><span class="keyword">char</span><span class="special">*</span> <span class="identifier">buffer</span> <span class="special">=</span> <span class="keyword">static_cast</span><span class="special"><</span><span class="keyword">char</span><span class="special">*>(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">get_memory_allocation_function</span><span class="special">()(</span><span class="identifier">size</span><span class="special">));</span> -<span class="identifier">memcpy</span><span class="special">(</span><span class="identifier">buffer</span><span class="special">,</span> <span class="identifier">source</span><span class="special">,</span> <span class="identifier">size</span><span class="special">);</span> - -<span class="comment">// The block will be deleted by the document -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_buffer_inplace_own</span><span class="special">(</span><span class="identifier">buffer</span><span class="special">,</span> <span class="identifier">size</span><span class="special">);</span> -</pre> -<p> - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// You can use load to load document from null-terminated strings, for example literals: -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_string</span><span class="special">(</span><span class="string">"<mesh name='sphere'><bounds>0 0 1 1</bounds></mesh>"</span><span class="special">);</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.loading.stream"></a><a class="link" href="loading.html#manual.loading.stream" title="Loading document from C++ IOstreams"> Loading document from C++ IOstreams</a> -</h3></div></div></div> -<a name="xml_document::load_stream"></a><p> - To enhance interoperability, pugixml provides functions for loading document - from any object which implements C++ <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">istream</span></code> - interface. This allows you to load documents from any standard C++ stream - (i.e. file stream) or any third-party compliant implementation (i.e. Boost - Iostreams). There are two functions, one works with narrow character streams, - another handles wide character ones: - </p> -<pre class="programlisting"><span class="identifier">xml_parse_result</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">istream</span><span class="special">&</span> <span class="identifier">stream</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">options</span> <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span> -<span class="identifier">xml_parse_result</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wistream</span><span class="special">&</span> <span class="identifier">stream</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">options</span> <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">);</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">load</span></code> with <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">istream</span></code> - argument loads the document from stream from the current read position to - the end, treating the stream contents as a byte stream of the specified encoding - (with encoding autodetection as necessary). Thus calling <code class="computeroutput"><span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load</span></code> - on an opened <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">ifstream</span></code> object is equivalent to calling - <code class="computeroutput"><span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load_file</span></code>. - </p> -<p> - <code class="computeroutput"><span class="identifier">load</span></code> with <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstream</span></code> - argument treats the stream contents as a wide character stream (encoding - is always <a class="link" href="loading.html#encoding_wchar">encoding_wchar</a>). Because - of this, using <code class="computeroutput"><span class="identifier">load</span></code> with - wide character streams requires careful (usually platform-specific) stream - setup (i.e. using the <code class="computeroutput"><span class="identifier">imbue</span></code> - function). Generally use of wide streams is discouraged, however it provides - you the ability to load documents from non-Unicode encodings, i.e. you can - load Shift-JIS encoded data if you set the correct locale. - </p> -<p> - This is a simple example of loading XML document from file using streams - (<a href="../samples/load_stream.cpp" target="_top">samples/load_stream.cpp</a>); read - the sample code for more complex examples involving wide streams and locales: - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">ifstream</span> <span class="identifier">stream</span><span class="special">(</span><span class="string">"weekly-utf-8.xml"</span><span class="special">);</span> -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load</span><span class="special">(</span><span class="identifier">stream</span><span class="special">);</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.loading.errors"></a><a class="link" href="loading.html#manual.loading.errors" title="Handling parsing errors"> Handling parsing errors</a> -</h3></div></div></div> -<a name="xml_parse_result"></a><p> - All document loading functions return the parsing result via <code class="computeroutput"><span class="identifier">xml_parse_result</span></code> object. It contains parsing - status, the offset of last successfully parsed character from the beginning - of the source stream, and the encoding of the source stream: - </p> -<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">xml_parse_result</span> -<span class="special">{</span> - <span class="identifier">xml_parse_status</span> <span class="identifier">status</span><span class="special">;</span> - <span class="identifier">ptrdiff_t</span> <span class="identifier">offset</span><span class="special">;</span> - <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span><span class="special">;</span> - - <span class="keyword">operator</span> <span class="keyword">bool</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> - <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">description</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="special">};</span> -</pre> -<a name="xml_parse_status"></a><a name="xml_parse_result::status"></a><p> - Parsing status is represented as the <code class="computeroutput"><span class="identifier">xml_parse_status</span></code> - enumeration and can be one of the following: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <a name="status_ok"></a><code class="literal">status_ok</code> means that no error was encountered - during parsing; the source stream represents the valid XML document which - was fully parsed and converted to a tree. <br><br> - - </li> -<li class="listitem"> - <a name="status_file_not_found"></a><code class="literal">status_file_not_found</code> is only - returned by <code class="computeroutput"><span class="identifier">load_file</span></code> - function and means that file could not be opened. - </li> -<li class="listitem"> - <a name="status_io_error"></a><code class="literal">status_io_error</code> is returned by <code class="computeroutput"><span class="identifier">load_file</span></code> function and by <code class="computeroutput"><span class="identifier">load</span></code> functions with <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">istream</span></code>/<code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstream</span></code> arguments; it means that some - I/O error has occurred during reading the file/stream. - </li> -<li class="listitem"> - <a name="status_out_of_memory"></a><code class="literal">status_out_of_memory</code> means that - there was not enough memory during some allocation; any allocation failure - during parsing results in this error. - </li> -<li class="listitem"> - <a name="status_internal_error"></a><code class="literal">status_internal_error</code> means that - something went horribly wrong; currently this error does not occur <br><br> - - </li> -<li class="listitem"> - <a name="status_unrecognized_tag"></a><code class="literal">status_unrecognized_tag</code> means - that parsing stopped due to a tag with either an empty name or a name - which starts with incorrect character, such as <code class="literal">#</code>. - </li> -<li class="listitem"> - <a name="status_bad_pi"></a><code class="literal">status_bad_pi</code> means that parsing stopped - due to incorrect document declaration/processing instruction - </li> -<li class="listitem"> - <a name="status_bad_comment"></a><code class="literal">status_bad_comment</code>, <a name="status_bad_cdata"></a><code class="literal">status_bad_cdata</code>, - <a name="status_bad_doctype"></a><code class="literal">status_bad_doctype</code> and <a name="status_bad_pcdata"></a><code class="literal">status_bad_pcdata</code> - mean that parsing stopped due to the invalid construct of the respective - type - </li> -<li class="listitem"> - <a name="status_bad_start_element"></a><code class="literal">status_bad_start_element</code> means - that parsing stopped because starting tag either had no closing <code class="computeroutput"><span class="special">></span></code> symbol or contained some incorrect - symbol - </li> -<li class="listitem"> - <a name="status_bad_attribute"></a><code class="literal">status_bad_attribute</code> means that - parsing stopped because there was an incorrect attribute, such as an - attribute without value or with value that is not quoted (note that - <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span> - <span class="identifier">attr</span><span class="special">=</span><span class="number">1</span><span class="special">></span></code> is - incorrect in XML) - </li> -<li class="listitem"> - <a name="status_bad_end_element"></a><code class="literal">status_bad_end_element</code> means - that parsing stopped because ending tag had incorrect syntax (i.e. extra - non-whitespace symbols between tag name and <code class="computeroutput"><span class="special">></span></code>) - </li> -<li class="listitem"> - <a name="status_end_element_mismatch"></a><code class="literal">status_end_element_mismatch</code> - means that parsing stopped because the closing tag did not match the - opening one (i.e. <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">></</span><span class="identifier">nedo</span><span class="special">></span></code>) or because some tag was not closed - at all - </li> -<li class="listitem"> - <a name="status_no_document_element"></a><code class="literal">status_no_document_element</code> - means that no element nodes were discovered during parsing; this usually - indicates an empty or invalid document - </li> -</ul></div> -<a name="xml_parse_result::description"></a><p> - <code class="computeroutput"><span class="identifier">description</span><span class="special">()</span></code> - member function can be used to convert parsing status to a string; the returned - message is always in English, so you'll have to write your own function if - you need a localized string. However please note that the exact messages - returned by <code class="computeroutput"><span class="identifier">description</span><span class="special">()</span></code> - function may change from version to version, so any complex status handling - should be based on <code class="computeroutput"><span class="identifier">status</span></code> - value. Note that <code class="computeroutput"><span class="identifier">description</span><span class="special">()</span></code> returns a <code class="computeroutput"><span class="keyword">char</span></code> - string even in <code class="computeroutput"><span class="identifier">PUGIXML_WCHAR_MODE</span></code>; - you'll have to call <a class="link" href="dom.html#as_wide">as_wide</a> to get the <code class="computeroutput"><span class="keyword">wchar_t</span></code> string. - </p> -<p> - If parsing failed because the source data was not a valid XML, the resulting - tree is not destroyed - despite the fact that load function returns error, - you can use the part of the tree that was successfully parsed. Obviously, - the last element may have an unexpected name/value; for example, if the attribute - value does not end with the necessary quotation mark, like in <code class="literal"><node - attr="value>some data</node></code> example, the value of - attribute <code class="computeroutput"><span class="identifier">attr</span></code> will contain - the string <code class="computeroutput"><span class="identifier">value</span><span class="special">></span><span class="identifier">some</span> <span class="identifier">data</span><span class="special"></</span><span class="identifier">node</span><span class="special">></span></code>. - </p> -<a name="xml_parse_result::offset"></a><p> - In addition to the status code, parsing result has an <code class="computeroutput"><span class="identifier">offset</span></code> - member, which contains the offset of last successfully parsed character if - parsing failed because of an error in source data; otherwise <code class="computeroutput"><span class="identifier">offset</span></code> is 0. For parsing efficiency reasons, - pugixml does not track the current line during parsing; this offset is in - units of <a class="link" href="dom.html#char_t">pugi::char_t</a> (bytes for character - mode, wide characters for wide character mode). Many text editors support - 'Go To Position' feature - you can use it to locate the exact error position. - Alternatively, if you're loading the document from memory, you can display - the error chunk along with the error description (see the example code below). - </p> -<div class="caution"><table border="0" summary="Caution"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="../images/caution.png"></td> -<th align="left">Caution</th> -</tr> -<tr><td align="left" valign="top"><p> - Offset is calculated in the XML buffer in native encoding; if encoding - conversion is performed during parsing, offset can not be used to reliably - track the error position. - </p></td></tr> -</table></div> -<a name="xml_parse_result::encoding"></a><p> - Parsing result also has an <code class="computeroutput"><span class="identifier">encoding</span></code> - member, which can be used to check that the source data encoding was correctly - guessed. It is equal to the exact encoding used during parsing (i.e. with - the exact endianness); see <a class="xref" href="loading.html#manual.loading.encoding" title="Encodings"> Encodings</a> for more information. - </p> -<a name="xml_parse_result::bool"></a><p> - Parsing result object can be implicitly converted to <code class="computeroutput"><span class="keyword">bool</span></code>; - if you do not want to handle parsing errors thoroughly, you can just check - the return value of load functions as if it was a <code class="computeroutput"><span class="keyword">bool</span></code>: - <code class="computeroutput"><span class="keyword">if</span> <span class="special">(</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_file</span><span class="special">(</span><span class="string">"file.xml"</span><span class="special">))</span> <span class="special">{</span> <span class="special">...</span> - <span class="special">}</span> <span class="keyword">else</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span></code>. - </p> -<p> - This is an example of handling loading errors (<a href="../samples/load_error_handling.cpp" target="_top">samples/load_error_handling.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span> <span class="identifier">doc</span><span class="special">;</span> -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_string</span><span class="special">(</span><span class="identifier">source</span><span class="special">);</span> - -<span class="keyword">if</span> <span class="special">(</span><span class="identifier">result</span><span class="special">)</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"XML ["</span> <span class="special"><<</span> <span class="identifier">source</span> <span class="special"><<</span> <span class="string">"] parsed without errors, attr value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"node"</span><span class="special">).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"attr"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"]\n\n"</span><span class="special">;</span> -<span class="keyword">else</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"XML ["</span> <span class="special"><<</span> <span class="identifier">source</span> <span class="special"><<</span> <span class="string">"] parsed with errors, attr value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"node"</span><span class="special">).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"attr"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"]\n"</span><span class="special">;</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Error description: "</span> <span class="special"><<</span> <span class="identifier">result</span><span class="special">.</span><span class="identifier">description</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"\n"</span><span class="special">;</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Error offset: "</span> <span class="special"><<</span> <span class="identifier">result</span><span class="special">.</span><span class="identifier">offset</span> <span class="special"><<</span> <span class="string">" (error at [..."</span> <span class="special"><<</span> <span class="special">(</span><span class="identifier">source</span> <span class="special">+</span> <span class="identifier">result</span><span class="special">.</span><span class="identifier">offset</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"]\n\n"</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.loading.options"></a><a class="link" href="loading.html#manual.loading.options" title="Parsing options"> Parsing options</a> -</h3></div></div></div> -<p> - All document loading functions accept the optional parameter <code class="computeroutput"><span class="identifier">options</span></code>. This is a bitmask that customizes - the parsing process: you can select the node types that are parsed and various - transformations that are performed with the XML text. Disabling certain transformations - can improve parsing performance for some documents; however, the code for - all transformations is very well optimized, and thus the majority of documents - won't get any performance benefit. As a rule of thumb, only modify parsing - flags if you want to get some nodes in the document that are excluded by - default (i.e. declaration or comment nodes). - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - You should use the usual bitwise arithmetics to manipulate the bitmask: - to enable a flag, use <code class="computeroutput"><span class="identifier">mask</span> <span class="special">|</span> <span class="identifier">flag</span></code>; - to disable a flag, use <code class="computeroutput"><span class="identifier">mask</span> <span class="special">&</span> <span class="special">~</span><span class="identifier">flag</span></code>. - </p></td></tr> -</table></div> -<p> - These flags control the resulting tree contents: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <a name="parse_declaration"></a><code class="literal">parse_declaration</code> determines if XML - document declaration (node with type <a class="link" href="dom.html#node_declaration">node_declaration</a>) - is to be put in DOM tree. If this flag is off, it is not put in the tree, - but is still parsed and checked for correctness. This flag is <span class="bold"><strong>off</strong></span> by default. <br><br> - - </li> -<li class="listitem"> - <a name="parse_doctype"></a><code class="literal">parse_doctype</code> determines if XML document - type declaration (node with type <a class="link" href="dom.html#node_doctype">node_doctype</a>) - is to be put in DOM tree. If this flag is off, it is not put in the tree, - but is still parsed and checked for correctness. This flag is <span class="bold"><strong>off</strong></span> by default. <br><br> - - </li> -<li class="listitem"> - <a name="parse_pi"></a><code class="literal">parse_pi</code> determines if processing instructions - (nodes with type <a class="link" href="dom.html#node_pi">node_pi</a>) are to be put - in DOM tree. If this flag is off, they are not put in the tree, but are - still parsed and checked for correctness. Note that <code class="computeroutput"><span class="special"><?</span><span class="identifier">xml</span> <span class="special">...?></span></code> - (document declaration) is not considered to be a PI. This flag is <span class="bold"><strong>off</strong></span> by default. <br><br> - - </li> -<li class="listitem"> - <a name="parse_comments"></a><code class="literal">parse_comments</code> determines if comments - (nodes with type <a class="link" href="dom.html#node_comment">node_comment</a>) are - to be put in DOM tree. If this flag is off, they are not put in the tree, - but are still parsed and checked for correctness. This flag is <span class="bold"><strong>off</strong></span> by default. <br><br> - - </li> -<li class="listitem"> - <a name="parse_cdata"></a><code class="literal">parse_cdata</code> determines if CDATA sections - (nodes with type <a class="link" href="dom.html#node_cdata">node_cdata</a>) are to - be put in DOM tree. If this flag is off, they are not put in the tree, - but are still parsed and checked for correctness. This flag is <span class="bold"><strong>on</strong></span> by default. <br><br> - - </li> -<li class="listitem"> - <a name="parse_trim_pcdata"></a><code class="literal">parse_trim_pcdata</code> determines if leading - and trailing whitespace characters are to be removed from PCDATA nodes. - While for some applications leading/trailing whitespace is significant, - often the application only cares about the non-whitespace contents so - it's easier to trim whitespace from text during parsing. This flag is - <span class="bold"><strong>off</strong></span> by default. <br><br> - - </li> -<li class="listitem"> - <a name="parse_ws_pcdata"></a><code class="literal">parse_ws_pcdata</code> determines if PCDATA - nodes (nodes with type <a class="link" href="dom.html#node_pcdata">node_pcdata</a>) - that consist only of whitespace characters are to be put in DOM tree. - Often whitespace-only data is not significant for the application, and - the cost of allocating and storing such nodes (both memory and speed-wise) - can be significant. For example, after parsing XML string <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">></span> <span class="special"><</span><span class="identifier">a</span><span class="special">/></span> <span class="special"></</span><span class="identifier">node</span><span class="special">></span></code>, <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">></span></code> - element will have three children when <code class="computeroutput"><span class="identifier">parse_ws_pcdata</span></code> - is set (child with type <a class="link" href="dom.html#node_pcdata">node_pcdata</a> - and value <code class="computeroutput"><span class="string">" "</span></code>, - child with type <a class="link" href="dom.html#node_element">node_element</a> and - name <code class="computeroutput"><span class="string">"a"</span></code>, and another - child with type <a class="link" href="dom.html#node_pcdata">node_pcdata</a> and value - <code class="computeroutput"><span class="string">" "</span></code>), and only - one child when <code class="computeroutput"><span class="identifier">parse_ws_pcdata</span></code> - is not set. This flag is <span class="bold"><strong>off</strong></span> by default. - <br><br> - - </li> -<li class="listitem"> - <a name="parse_ws_pcdata_single"></a><code class="literal">parse_ws_pcdata_single</code> determines - if whitespace-only PCDATA nodes that have no sibling nodes are to be - put in DOM tree. In some cases application needs to parse the whitespace-only - contents of nodes, i.e. <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">></span> - <span class="special"></</span><span class="identifier">node</span><span class="special">></span></code>, but is not interested in whitespace - markup elsewhere. It is possible to use <a class="link" href="loading.html#parse_ws_pcdata">parse_ws_pcdata</a> - flag in this case, but it results in excessive allocations and complicates - document processing in some cases; this flag is intended to avoid that. - As an example, after parsing XML string <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">></span> - <span class="special"><</span><span class="identifier">a</span><span class="special">></span> <span class="special"></</span><span class="identifier">a</span><span class="special">></span> <span class="special"></</span><span class="identifier">node</span><span class="special">></span></code> with <code class="computeroutput"><span class="identifier">parse_ws_pcdata_single</span></code> - flag set, <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">></span></code> element will have one child <code class="computeroutput"><span class="special"><</span><span class="identifier">a</span><span class="special">></span></code>, and <code class="computeroutput"><span class="special"><</span><span class="identifier">a</span><span class="special">></span></code> - element will have one child with type <a class="link" href="dom.html#node_pcdata">node_pcdata</a> - and value <code class="computeroutput"><span class="string">" "</span></code>. - This flag has no effect if <a class="link" href="loading.html#parse_ws_pcdata">parse_ws_pcdata</a> - is enabled. This flag is <span class="bold"><strong>off</strong></span> by default. - <br><br> - - </li> -<li class="listitem"> - <a name="parse_fragment"></a><code class="literal">parse_fragment</code> determines if document - should be treated as a fragment of a valid XML. Parsing document as a - fragment leads to top-level PCDATA content (i.e. text that is not located - inside a node) to be added to a tree, and additionally treats documents - without element nodes as valid. This flag is <span class="bold"><strong>off</strong></span> - by default. - </li> -</ul></div> -<div class="caution"><table border="0" summary="Caution"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="../images/caution.png"></td> -<th align="left">Caution</th> -</tr> -<tr><td align="left" valign="top"><p> - Using in-place parsing (<a class="link" href="loading.html#xml_document::load_buffer_inplace">load_buffer_inplace</a>) - with <code class="computeroutput"><span class="identifier">parse_fragment</span></code> flag - may result in the loss of the last character of the buffer if it is a part - of PCDATA. Since PCDATA values are null-terminated strings, the only way - to resolve this is to provide a null-terminated buffer as an input to - <code class="computeroutput"><span class="identifier">load_buffer_inplace</span></code> - i.e. - <code class="computeroutput"><span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_buffer_inplace</span><span class="special">(</span><span class="string">"test\0"</span><span class="special">,</span> - <span class="number">5</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">parse_default</span> <span class="special">|</span> - <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">parse_fragment</span><span class="special">)</span></code>. - </p></td></tr> -</table></div> -<p> - These flags control the transformation of tree element contents: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <a name="parse_escapes"></a><code class="literal">parse_escapes</code> determines if character - and entity references are to be expanded during the parsing process. - Character references have the form <code class="literal">&#...;</code> or - <code class="literal">&#x...;</code> (<code class="literal">...</code> is Unicode numeric - representation of character in either decimal (<code class="literal">&#...;</code>) - or hexadecimal (<code class="literal">&#x...;</code>) form), entity references - are <code class="literal">&lt;</code>, <code class="literal">&gt;</code>, <code class="literal">&amp;</code>, - <code class="literal">&apos;</code> and <code class="literal">&quot;</code> (note - that as pugixml does not handle DTD, the only allowed entities are predefined - ones). If character/entity reference can not be expanded, it is left - as is, so you can do additional processing later. Reference expansion - is performed on attribute values and PCDATA content. This flag is <span class="bold"><strong>on</strong></span> by default. <br><br> - - </li> -<li class="listitem"> - <a name="parse_eol"></a><code class="literal">parse_eol</code> determines if EOL handling (that - is, replacing sequences <code class="computeroutput"><span class="number">0x0d</span> <span class="number">0x0a</span></code> by a single <code class="computeroutput"><span class="number">0x0a</span></code> - character, and replacing all standalone <code class="computeroutput"><span class="number">0x0d</span></code> - characters by <code class="computeroutput"><span class="number">0x0a</span></code>) is to - be performed on input data (that is, comments contents, PCDATA/CDATA - contents and attribute values). This flag is <span class="bold"><strong>on</strong></span> - by default. <br><br> - - </li> -<li class="listitem"> - <a name="parse_wconv_attribute"></a><code class="literal">parse_wconv_attribute</code> determines - if attribute value normalization should be performed for all attributes. - This means, that whitespace characters (new line, tab and space) are - replaced with space (<code class="computeroutput"><span class="char">' '</span></code>). - New line characters are always treated as if <a class="link" href="loading.html#parse_eol">parse_eol</a> - is set, i.e. <code class="computeroutput"><span class="special">\</span><span class="identifier">r</span><span class="special">\</span><span class="identifier">n</span></code> - is converted to a single space. This flag is <span class="bold"><strong>on</strong></span> - by default. <br><br> - - </li> -<li class="listitem"> - <a name="parse_wnorm_attribute"></a><code class="literal">parse_wnorm_attribute</code> determines - if extended attribute value normalization should be performed for all - attributes. This means, that after attribute values are normalized as - if <a class="link" href="loading.html#parse_wconv_attribute">parse_wconv_attribute</a> - was set, leading and trailing space characters are removed, and all sequences - of space characters are replaced by a single space character. <a class="link" href="loading.html#parse_wconv_attribute">parse_wconv_attribute</a> - has no effect if this flag is on. This flag is <span class="bold"><strong>off</strong></span> - by default. - </li> -</ul></div> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - <code class="computeroutput"><span class="identifier">parse_wconv_attribute</span></code> option - performs transformations that are required by W3C specification for attributes - that are declared as <code class="literal">CDATA</code>; <a class="link" href="loading.html#parse_wnorm_attribute">parse_wnorm_attribute</a> - performs transformations required for <code class="literal">NMTOKENS</code> attributes. - In the absence of document type declaration all attributes should behave - as if they are declared as <code class="literal">CDATA</code>, thus <a class="link" href="loading.html#parse_wconv_attribute">parse_wconv_attribute</a> - is the default option. - </p></td></tr> -</table></div> -<p> - Additionally there are three predefined option masks: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <a name="parse_minimal"></a><code class="literal">parse_minimal</code> has all options turned - off. This option mask means that pugixml does not add declaration nodes, - document type declaration nodes, PI nodes, CDATA sections and comments - to the resulting tree and does not perform any conversion for input data, - so theoretically it is the fastest mode. However, as mentioned above, - in practice <a class="link" href="loading.html#parse_default">parse_default</a> is usually - equally fast. <br><br> - - </li> -<li class="listitem"> - <a name="parse_default"></a><code class="literal">parse_default</code> is the default set of flags, - i.e. it has all options set to their default values. It includes parsing - CDATA sections (comments/PIs are not parsed), performing character and - entity reference expansion, replacing whitespace characters with spaces - in attribute values and performing EOL handling. Note, that PCDATA sections - consisting only of whitespace characters are not parsed (by default) - for performance reasons. <br><br> - - </li> -<li class="listitem"> - <a name="parse_full"></a><code class="literal">parse_full</code> is the set of flags which adds - nodes of all types to the resulting tree and performs default conversions - for input data. It includes parsing CDATA sections, comments, PI nodes, - document declaration node and document type declaration node, performing - character and entity reference expansion, replacing whitespace characters - with spaces in attribute values and performing EOL handling. Note, that - PCDATA sections consisting only of whitespace characters are not parsed - in this mode. - </li> -</ul></div> -<p> - This is an example of using different parsing options (<a href="../samples/load_options.cpp" target="_top">samples/load_options.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">source</span> <span class="special">=</span> <span class="string">"<!--comment--><node>&lt;</node>"</span><span class="special">;</span> - -<span class="comment">// Parsing with default options; note that comment node is not added to the tree, and entity reference &lt; is expanded -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_string</span><span class="special">(</span><span class="identifier">source</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"First node value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">first_child</span><span class="special">().</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"], node child value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child_value</span><span class="special">(</span><span class="string">"node"</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"]\n"</span><span class="special">;</span> - -<span class="comment">// Parsing with additional parse_comments option; comment node is now added to the tree -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_string</span><span class="special">(</span><span class="identifier">source</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">parse_default</span> <span class="special">|</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">parse_comments</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"First node value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">first_child</span><span class="special">().</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"], node child value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child_value</span><span class="special">(</span><span class="string">"node"</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"]\n"</span><span class="special">;</span> - -<span class="comment">// Parsing with additional parse_comments option and without the (default) parse_escapes option; &lt; is not expanded -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_string</span><span class="special">(</span><span class="identifier">source</span><span class="special">,</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">parse_default</span> <span class="special">|</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">parse_comments</span><span class="special">)</span> <span class="special">&</span> <span class="special">~</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">parse_escapes</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"First node value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">first_child</span><span class="special">().</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"], node child value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child_value</span><span class="special">(</span><span class="string">"node"</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"]\n"</span><span class="special">;</span> - -<span class="comment">// Parsing with minimal option mask; comment node is not added to the tree, and &lt; is not expanded -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_string</span><span class="special">(</span><span class="identifier">source</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">parse_minimal</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"First node value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">first_child</span><span class="special">().</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"], node child value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child_value</span><span class="special">(</span><span class="string">"node"</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"]\n"</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.loading.encoding"></a><a class="link" href="loading.html#manual.loading.encoding" title="Encodings"> Encodings</a> -</h3></div></div></div> -<a name="xml_encoding"></a><p> - pugixml supports all popular Unicode encodings (UTF-8, UTF-16 (big and little - endian), UTF-32 (big and little endian); UCS-2 is naturally supported since - it's a strict subset of UTF-16) and handles all encoding conversions. Most - loading functions accept the optional parameter <code class="computeroutput"><span class="identifier">encoding</span></code>. - This is a value of enumeration type <code class="computeroutput"><span class="identifier">xml_encoding</span></code>, - that can have the following values: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <a name="encoding_auto"></a><code class="literal">encoding_auto</code> means that pugixml will - try to guess the encoding based on source XML data. The algorithm is - a modified version of the one presented in Appendix F.1 of XML recommendation; - it tries to match the first few bytes of input data with the following - patterns in strict order: <br><br> - <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> -<li class="listitem"> - If first four bytes match UTF-32 BOM (Byte Order Mark), encoding - is assumed to be UTF-32 with the endianness equal to that of BOM; - </li> -<li class="listitem"> - If first two bytes match UTF-16 BOM, encoding is assumed to be - UTF-16 with the endianness equal to that of BOM; - </li> -<li class="listitem"> - If first three bytes match UTF-8 BOM, encoding is assumed to be - UTF-8; - </li> -<li class="listitem"> - If first four bytes match UTF-32 representation of <code class="literal"><</code>, - encoding is assumed to be UTF-32 with the corresponding endianness; - </li> -<li class="listitem"> - If first four bytes match UTF-16 representation of <code class="literal"><?</code>, - encoding is assumed to be UTF-16 with the corresponding endianness; - </li> -<li class="listitem"> - If first two bytes match UTF-16 representation of <code class="literal"><</code>, - encoding is assumed to be UTF-16 with the corresponding endianness - (this guess may yield incorrect result, but it's better than UTF-8); - </li> -<li class="listitem"> - Otherwise encoding is assumed to be UTF-8. <br><br> - - </li> -</ul></div> - </li> -<li class="listitem"> - <a name="encoding_utf8"></a><code class="literal">encoding_utf8</code> corresponds to UTF-8 encoding - as defined in the Unicode standard; UTF-8 sequences with length equal - to 5 or 6 are not standard and are rejected. - </li> -<li class="listitem"> - <a name="encoding_utf16_le"></a><code class="literal">encoding_utf16_le</code> corresponds to - little-endian UTF-16 encoding as defined in the Unicode standard; surrogate - pairs are supported. - </li> -<li class="listitem"> - <a name="encoding_utf16_be"></a><code class="literal">encoding_utf16_be</code> corresponds to - big-endian UTF-16 encoding as defined in the Unicode standard; surrogate - pairs are supported. - </li> -<li class="listitem"> - <a name="encoding_utf16"></a><code class="literal">encoding_utf16</code> corresponds to UTF-16 - encoding as defined in the Unicode standard; the endianness is assumed - to be that of the target platform. - </li> -<li class="listitem"> - <a name="encoding_utf32_le"></a><code class="literal">encoding_utf32_le</code> corresponds to - little-endian UTF-32 encoding as defined in the Unicode standard. - </li> -<li class="listitem"> - <a name="encoding_utf32_be"></a><code class="literal">encoding_utf32_be</code> corresponds to - big-endian UTF-32 encoding as defined in the Unicode standard. - </li> -<li class="listitem"> - <a name="encoding_utf32"></a><code class="literal">encoding_utf32</code> corresponds to UTF-32 - encoding as defined in the Unicode standard; the endianness is assumed - to be that of the target platform. - </li> -<li class="listitem"> - <a name="encoding_wchar"></a><code class="literal">encoding_wchar</code> corresponds to the encoding - of <code class="computeroutput"><span class="keyword">wchar_t</span></code> type; it has - the same meaning as either <code class="computeroutput"><span class="identifier">encoding_utf16</span></code> - or <code class="computeroutput"><span class="identifier">encoding_utf32</span></code>, depending - on <code class="computeroutput"><span class="keyword">wchar_t</span></code> size. - </li> -<li class="listitem"> - <a name="encoding_latin1"></a><code class="literal">encoding_latin1</code> corresponds to ISO-8859-1 - encoding (also known as Latin-1). - </li> -</ul></div> -<p> - The algorithm used for <code class="computeroutput"><span class="identifier">encoding_auto</span></code> - correctly detects any supported Unicode encoding for all well-formed XML - documents (since they start with document declaration) and for all other - XML documents that start with <code class="literal"><</code>; if your XML document - does not start with <code class="literal"><</code> and has encoding that is different - from UTF-8, use the specific encoding. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - The current behavior for Unicode conversion is to skip all invalid UTF - sequences during conversion. This behavior should not be relied upon; moreover, - in case no encoding conversion is performed, the invalid sequences are - not removed, so you'll get them as is in node/attribute contents. - </p></td></tr> -</table></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.loading.w3c"></a><a class="link" href="loading.html#manual.loading.w3c" title="Conformance to W3C specification"> Conformance to W3C specification</a> -</h3></div></div></div> -<p> - pugixml is not fully W3C conformant - it can load any valid XML document, - but does not perform some well-formedness checks. While considerable effort - is made to reject invalid XML documents, some validation is not performed - because of performance reasons. - </p> -<p> - There is only one non-conformant behavior when dealing with valid XML documents: - pugixml does not use information supplied in document type declaration for - parsing. This means that entities declared in DOCTYPE are not expanded, and - all attribute/PCDATA values are always processed in a uniform way that depends - only on parsing options. - </p> -<p> - As for rejecting invalid XML documents, there are a number of incompatibilities - with W3C specification, including: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Multiple attributes of the same node can have equal names. - </li> -<li class="listitem"> - All non-ASCII characters are treated in the same way as symbols of English - alphabet, so some invalid tag names are not rejected. - </li> -<li class="listitem"> - Attribute values which contain <code class="literal"><</code> are not rejected. - </li> -<li class="listitem"> - Invalid entity/character references are not rejected and are instead - left as is. - </li> -<li class="listitem"> - Comment values can contain <code class="literal">--</code>. - </li> -<li class="listitem"> - XML data is not required to begin with document declaration; additionally, - document declaration can appear after comments and other nodes. - </li> -<li class="listitem"> - Invalid document type declarations are silently ignored in some cases. - </li> -</ul></div> -</div> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2014 Arseny Kapoulkine<p> - Distributed under the MIT License - </p> -</div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <b>Loading</b> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="dom.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="access.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -</body> -</html> diff --git a/docs/manual/modify.html b/docs/manual/modify.html deleted file mode 100644 index fe207d6..0000000 --- a/docs/manual/modify.html +++ /dev/null @@ -1,762 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>Modifying document data</title> -<link rel="stylesheet" href="../pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../manual.html" title="pugixml 1.6"> -<link rel="up" href="../manual.html" title="pugixml 1.6"> -<link rel="prev" href="access.html" title="Accessing document data"> -<link rel="next" href="saving.html" title="Saving document"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <b>Modifying</b> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="access.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="saving.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -<hr> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.modify"></a><a class="link" href="modify.html" title="Modifying document data"> Modifying document data</a> -</h2></div></div></div> -<div class="toc"><dl class="toc"> -<dt><span class="section"><a href="modify.html#manual.modify.nodedata"> Setting node data</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.attrdata"> Setting attribute data</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.add"> Adding nodes/attributes</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.remove"> Removing nodes/attributes</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.text"> Working with text contents</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.clone"> Cloning nodes/attributes</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.move"> Moving nodes</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.fragments"> Assembling document from fragments</a></span></dt> -</dl></div> -<p> - The document in pugixml is fully mutable: you can completely change the document - structure and modify the data of nodes/attributes. This section provides documentation - for the relevant functions. All functions take care of memory management and - structural integrity themselves, so they always result in structurally valid - tree - however, it is possible to create an invalid XML tree (for example, - by adding two attributes with the same name or by setting attribute/node name - to empty/invalid string). Tree modification is optimized for performance and - for memory consumption, so if you have enough memory you can create documents - from scratch with pugixml and later save them to file/stream instead of relying - on error-prone manual text writing and without too much overhead. - </p> -<p> - All member functions that change node/attribute data or structure are non-constant - and thus can not be called on constant handles. However, you can easily convert - constant handle to non-constant one by simple assignment: <code class="computeroutput"><span class="keyword">void</span> - <span class="identifier">foo</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">n</span><span class="special">)</span> - <span class="special">{</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">nc</span> <span class="special">=</span> <span class="identifier">n</span><span class="special">;</span> <span class="special">}</span></code>, so const-correctness - here mainly provides additional documentation. - </p> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.modify.nodedata"></a><a class="link" href="modify.html#manual.modify.nodedata" title="Setting node data"> Setting node data</a> -</h3></div></div></div> -<a name="xml_node::set_name"></a><a name="xml_node::set_value"></a><p> - As discussed before, nodes can have name and value, both of which are strings. - Depending on node type, name or value may be absent. <a class="link" href="dom.html#node_document">node_document</a> - nodes do not have a name or value, <a class="link" href="dom.html#node_element">node_element</a> - and <a class="link" href="dom.html#node_declaration">node_declaration</a> nodes always - have a name but never have a value, <a class="link" href="dom.html#node_pcdata">node_pcdata</a>, - <a class="link" href="dom.html#node_cdata">node_cdata</a>, <a class="link" href="dom.html#node_comment">node_comment</a> - and <a class="link" href="dom.html#node_doctype">node_doctype</a> nodes never have a name - but always have a value (it may be empty though), <a class="link" href="dom.html#node_pi">node_pi</a> - nodes always have a name and a value (again, value may be empty). In order - to set node's name or value, you can use the following functions: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">set_name</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">set_value</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">rhs</span><span class="special">);</span> -</pre> -<p> - Both functions try to set the name/value to the specified string, and return - the operation result. The operation fails if the node can not have name or - value (for instance, when trying to call <code class="computeroutput"><span class="identifier">set_name</span></code> - on a <a class="link" href="dom.html#node_pcdata">node_pcdata</a> node), if the node handle - is null, or if there is insufficient memory to handle the request. The provided - string is copied into document managed memory and can be destroyed after - the function returns (for example, you can safely pass stack-allocated buffers - to these functions). The name/value content is not verified, so take care - to use only valid XML names, or the document may become malformed. - </p> -<p> - There is no equivalent of <a class="link" href="access.html#xml_node::child_value">child_value</a> - function for modifying text children of the node. - </p> -<p> - This is an example of setting node name and value (<a href="../samples/modify_base.cpp" target="_top">samples/modify_base.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"node"</span><span class="special">);</span> - -<span class="comment">// change node name -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">set_name</span><span class="special">(</span><span class="string">"notnode"</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", new node name: "</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// change comment text -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">last_child</span><span class="special">().</span><span class="identifier">set_value</span><span class="special">(</span><span class="string">"useless comment"</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", new comment text: "</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">last_child</span><span class="special">().</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// we can't change value of the element or name of the comment -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">set_value</span><span class="special">(</span><span class="string">"1"</span><span class="special">)</span> <span class="special"><<</span> <span class="string">", "</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">last_child</span><span class="special">().</span><span class="identifier">set_name</span><span class="special">(</span><span class="string">"2"</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.modify.attrdata"></a><a class="link" href="modify.html#manual.modify.attrdata" title="Setting attribute data"> Setting attribute data</a> -</h3></div></div></div> -<a name="xml_attribute::set_name"></a><a name="xml_attribute::set_value"></a><p> - All attributes have name and value, both of which are strings (value may - be empty). You can set them with the following functions: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">set_name</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">set_value</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">rhs</span><span class="special">);</span> -</pre> -<p> - Both functions try to set the name/value to the specified string, and return - the operation result. The operation fails if the attribute handle is null, - or if there is insufficient memory to handle the request. The provided string - is copied into document managed memory and can be destroyed after the function - returns (for example, you can safely pass stack-allocated buffers to these - functions). The name/value content is not verified, so take care to use only - valid XML names, or the document may become malformed. - </p> -<p> - In addition to string functions, several functions are provided for handling - attributes with numbers and booleans as values: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">set_value</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">set_value</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">set_value</span><span class="special">(</span><span class="keyword">double</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">set_value</span><span class="special">(</span><span class="keyword">float</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">set_value</span><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">set_value</span><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="identifier">set_value</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span> -</pre> -<p> - The above functions convert the argument to string and then call the base - <code class="computeroutput"><span class="identifier">set_value</span></code> function. Integers - are converted to a decimal form, floating-point numbers are converted to - either decimal or scientific form, depending on the number magnitude, boolean - values are converted to either <code class="computeroutput"><span class="string">"true"</span></code> - or <code class="computeroutput"><span class="string">"false"</span></code>. - </p> -<div class="caution"><table border="0" summary="Caution"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="../images/caution.png"></td> -<th align="left">Caution</th> -</tr> -<tr><td align="left" valign="top"><p> - Number conversion functions depend on current C locale as set with <code class="computeroutput"><span class="identifier">setlocale</span></code>, so may generate unexpected - results if the locale is different from <code class="computeroutput"><span class="string">"C"</span></code>. - </p></td></tr> -</table></div> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - <code class="computeroutput"><span class="identifier">set_value</span></code> overloads with - <code class="computeroutput"><span class="keyword">long</span> <span class="keyword">long</span></code> - type are only available if your platform has reliable support for the type, - including string conversions. - </p></td></tr> -</table></div> -<a name="xml_attribute::assign"></a><p> - For convenience, all <code class="computeroutput"><span class="identifier">set_value</span></code> - functions have the corresponding assignment operators: - </p> -<pre class="programlisting"><span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">double</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">float</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">bool</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">xml_attribute</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span> -</pre> -<p> - These operators simply call the right <code class="computeroutput"><span class="identifier">set_value</span></code> - function and return the attribute they're called on; the return value of - <code class="computeroutput"><span class="identifier">set_value</span></code> is ignored, so - errors are ignored. - </p> -<p> - This is an example of setting attribute name and value (<a href="../samples/modify_base.cpp" target="_top">samples/modify_base.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_attribute</span> <span class="identifier">attr</span> <span class="special">=</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"id"</span><span class="special">);</span> - -<span class="comment">// change attribute name/value -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">set_name</span><span class="special">(</span><span class="string">"key"</span><span class="special">)</span> <span class="special"><<</span> <span class="string">", "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">set_value</span><span class="special">(</span><span class="string">"345"</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", new attribute: "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"="</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// we can use numbers or booleans -</span><span class="identifier">attr</span><span class="special">.</span><span class="identifier">set_value</span><span class="special">(</span><span class="number">1.234</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"new attribute value: "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// we can also use assignment operators for more concise code -</span><span class="identifier">attr</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"final attribute value: "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.modify.add"></a><a class="link" href="modify.html#manual.modify.add" title="Adding nodes/attributes"> Adding nodes/attributes</a> -</h3></div></div></div> -<a name="xml_node::prepend_attribute"></a><a name="xml_node::append_attribute"></a><a name="xml_node::insert_attribute_after"></a><a name="xml_node::insert_attribute_before"></a><a name="xml_node::prepend_child"></a><a name="xml_node::append_child"></a><a name="xml_node::insert_child_after"></a><a name="xml_node::insert_child_before"></a><p> - Nodes and attributes do not exist without a document tree, so you can't create - them without adding them to some document. A node or attribute can be created - at the end of node/attribute list or before/after some other node: - </p> -<pre class="programlisting"><span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">append_attribute</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">);</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">prepend_attribute</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">);</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_attribute_after</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">attr</span><span class="special">);</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_attribute_before</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">attr</span><span class="special">);</span> - -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">append_child</span><span class="special">(</span><span class="identifier">xml_node_type</span> <span class="identifier">type</span> <span class="special">=</span> <span class="identifier">node_element</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">prepend_child</span><span class="special">(</span><span class="identifier">xml_node_type</span> <span class="identifier">type</span> <span class="special">=</span> <span class="identifier">node_element</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_child_after</span><span class="special">(</span><span class="identifier">xml_node_type</span> <span class="identifier">type</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_child_before</span><span class="special">(</span><span class="identifier">xml_node_type</span> <span class="identifier">type</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span> - -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">append_child</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">prepend_child</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_child_after</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_child_before</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">append_attribute</span></code> and <code class="computeroutput"><span class="identifier">append_child</span></code> create a new node/attribute - at the end of the corresponding list of the node the method is called on; - <code class="computeroutput"><span class="identifier">prepend_attribute</span></code> and <code class="computeroutput"><span class="identifier">prepend_child</span></code> create a new node/attribute - at the beginning of the list; <code class="computeroutput"><span class="identifier">insert_attribute_after</span></code>, - <code class="computeroutput"><span class="identifier">insert_attribute_before</span></code>, - <code class="computeroutput"><span class="identifier">insert_child_after</span></code> and <code class="computeroutput"><span class="identifier">insert_attribute_before</span></code> add the node/attribute - before or after the specified node/attribute. - </p> -<p> - Attribute functions create an attribute with the specified name; you can - specify the empty name and change the name later if you want to. Node functions - with the <code class="computeroutput"><span class="identifier">type</span></code> argument create - the node with the specified type; since node type can't be changed, you have - to know the desired type beforehand. Also note that not all types can be - added as children; see below for clarification. Node functions with the - <code class="computeroutput"><span class="identifier">name</span></code> argument create the - element node (<a class="link" href="dom.html#node_element">node_element</a>) with the - specified name. - </p> -<p> - All functions return the handle to the created object on success, and null - handle on failure. There are several reasons for failure: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Adding fails if the target node is null; - </li> -<li class="listitem"> - Only <a class="link" href="dom.html#node_element">node_element</a> nodes can contain - attributes, so attribute adding fails if node is not an element; - </li> -<li class="listitem"> - Only <a class="link" href="dom.html#node_document">node_document</a> and <a class="link" href="dom.html#node_element">node_element</a> - nodes can contain children, so child node adding fails if the target - node is not an element or a document; - </li> -<li class="listitem"> - <a class="link" href="dom.html#node_document">node_document</a> and <a class="link" href="dom.html#node_null">node_null</a> - nodes can not be inserted as children, so passing <a class="link" href="dom.html#node_document">node_document</a> - or <a class="link" href="dom.html#node_null">node_null</a> value as <code class="computeroutput"><span class="identifier">type</span></code> results in operation failure; - </li> -<li class="listitem"> - <a class="link" href="dom.html#node_declaration">node_declaration</a> nodes can only - be added as children of the document node; attempt to insert declaration - node as a child of an element node fails; - </li> -<li class="listitem"> - Adding node/attribute results in memory allocation, which may fail; - </li> -<li class="listitem"> - Insertion functions fail if the specified node or attribute is null or - is not in the target node's children/attribute list. - </li> -</ul></div> -<p> - Even if the operation fails, the document remains in consistent state, but - the requested node/attribute is not added. - </p> -<div class="caution"><table border="0" summary="Caution"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="../images/caution.png"></td> -<th align="left">Caution</th> -</tr> -<tr><td align="left" valign="top"><p> - attribute() and child() functions do not add attributes or nodes to the - tree, so code like <code class="computeroutput"><span class="identifier">node</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"id"</span><span class="special">)</span> <span class="special">=</span> <span class="number">123</span><span class="special">;</span></code> will not do anything if <code class="computeroutput"><span class="identifier">node</span></code> does not have an attribute with - name <code class="computeroutput"><span class="string">"id"</span></code>. Make sure - you're operating with existing attributes/nodes by adding them if necessary. - </p></td></tr> -</table></div> -<p> - This is an example of adding new attributes/nodes to the document (<a href="../samples/modify_add.cpp" target="_top">samples/modify_add.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// add node with some name -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">append_child</span><span class="special">(</span><span class="string">"node"</span><span class="special">);</span> - -<span class="comment">// add description node with text child -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">descr</span> <span class="special">=</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">append_child</span><span class="special">(</span><span class="string">"description"</span><span class="special">);</span> -<span class="identifier">descr</span><span class="special">.</span><span class="identifier">append_child</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">node_pcdata</span><span class="special">).</span><span class="identifier">set_value</span><span class="special">(</span><span class="string">"Simple node"</span><span class="special">);</span> - -<span class="comment">// add param node before the description -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">param</span> <span class="special">=</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">insert_child_before</span><span class="special">(</span><span class="string">"param"</span><span class="special">,</span> <span class="identifier">descr</span><span class="special">);</span> - -<span class="comment">// add attributes to param node -</span><span class="identifier">param</span><span class="special">.</span><span class="identifier">append_attribute</span><span class="special">(</span><span class="string">"name"</span><span class="special">)</span> <span class="special">=</span> <span class="string">"version"</span><span class="special">;</span> -<span class="identifier">param</span><span class="special">.</span><span class="identifier">append_attribute</span><span class="special">(</span><span class="string">"value"</span><span class="special">)</span> <span class="special">=</span> <span class="number">1.1</span><span class="special">;</span> -<span class="identifier">param</span><span class="special">.</span><span class="identifier">insert_attribute_after</span><span class="special">(</span><span class="string">"type"</span><span class="special">,</span> <span class="identifier">param</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"name"</span><span class="special">))</span> <span class="special">=</span> <span class="string">"float"</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.modify.remove"></a><a class="link" href="modify.html#manual.modify.remove" title="Removing nodes/attributes"> Removing nodes/attributes</a> -</h3></div></div></div> -<a name="xml_node::remove_attribute"></a><a name="xml_node::remove_child"></a><p> - If you do not want your document to contain some node or attribute, you can - remove it with one of the following functions: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">remove_attribute</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">a</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">remove_child</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">n</span><span class="special">);</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">remove_attribute</span></code> removes - the attribute from the attribute list of the node, and returns the operation - result. <code class="computeroutput"><span class="identifier">remove_child</span></code> removes - the child node with the entire subtree (including all descendant nodes and - attributes) from the document, and returns the operation result. Removing - fails if one of the following is true: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - The node the function is called on is null; - </li> -<li class="listitem"> - The attribute/node to be removed is null; - </li> -<li class="listitem"> - The attribute/node to be removed is not in the node's attribute/child - list. - </li> -</ul></div> -<p> - Removing the attribute or node invalidates all handles to the same underlying - object, and also invalidates all iterators pointing to the same object. Removing - node also invalidates all past-the-end iterators to its attribute or child - node list. Be careful to ensure that all such handles and iterators either - do not exist or are not used after the attribute/node is removed. - </p> -<p> - If you want to remove the attribute or child node by its name, two additional - helper functions are available: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">remove_attribute</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">remove_child</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">);</span> -</pre> -<p> - These functions look for the first attribute or child with the specified - name, and then remove it, returning the result. If there is no attribute - or child with such name, the function returns <code class="computeroutput"><span class="keyword">false</span></code>; - if there are two nodes with the given name, only the first node is deleted. - If you want to delete all nodes with the specified name, you can use code - like this: <code class="computeroutput"><span class="keyword">while</span> <span class="special">(</span><span class="identifier">node</span><span class="special">.</span><span class="identifier">remove_child</span><span class="special">(</span><span class="string">"tool"</span><span class="special">))</span> <span class="special">;</span></code>. - </p> -<p> - This is an example of removing attributes/nodes from the document (<a href="../samples/modify_remove.cpp" target="_top">samples/modify_remove.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// remove description node with the whole subtree -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"node"</span><span class="special">);</span> -<span class="identifier">node</span><span class="special">.</span><span class="identifier">remove_child</span><span class="special">(</span><span class="string">"description"</span><span class="special">);</span> - -<span class="comment">// remove id attribute -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">param</span> <span class="special">=</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"param"</span><span class="special">);</span> -<span class="identifier">param</span><span class="special">.</span><span class="identifier">remove_attribute</span><span class="special">(</span><span class="string">"value"</span><span class="special">);</span> - -<span class="comment">// we can also remove nodes/attributes by handles -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_attribute</span> <span class="identifier">id</span> <span class="special">=</span> <span class="identifier">param</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"name"</span><span class="special">);</span> -<span class="identifier">param</span><span class="special">.</span><span class="identifier">remove_attribute</span><span class="special">(</span><span class="identifier">id</span><span class="special">);</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.modify.text"></a><a class="link" href="modify.html#manual.modify.text" title="Working with text contents"> Working with text contents</a> -</h3></div></div></div> -<p> - pugixml provides a special class, <code class="computeroutput"><span class="identifier">xml_text</span></code>, - to work with text contents stored as a value of some node, i.e. <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">><</span><span class="identifier">description</span><span class="special">></span><span class="identifier">This</span> <span class="identifier">is</span> <span class="identifier">a</span> <span class="identifier">node</span><span class="special"></</span><span class="identifier">description</span><span class="special">></</span><span class="identifier">node</span><span class="special">></span></code>. - Working with text objects to retrieve data is described in <a class="link" href="access.html#manual.access.text" title="Working with text contents">the - documentation for accessing document data</a>; this section describes - the modification interface of <code class="computeroutput"><span class="identifier">xml_text</span></code>. - </p> -<a name="xml_text::set"></a><p> - Once you have an <code class="computeroutput"><span class="identifier">xml_text</span></code> - object, you can set the text contents using the following function: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">rhs</span><span class="special">);</span> -</pre> -<p> - This function tries to set the contents to the specified string, and returns - the operation result. The operation fails if the text object was retrieved - from a node that can not have a value and is not an element node (i.e. it - is a <a class="link" href="dom.html#node_declaration">node_declaration</a> node), if the - text object is empty, or if there is insufficient memory to handle the request. - The provided string is copied into document managed memory and can be destroyed - after the function returns (for example, you can safely pass stack-allocated - buffers to this function). Note that if the text object was retrieved from - an element node, this function creates the PCDATA child node if necessary - (i.e. if the element node does not have a PCDATA/CDATA child already). - </p> -<a name="xml_text::set_value"></a><p> - In addition to a string function, several functions are provided for handling - text with numbers and booleans as contents: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">double</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">float</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span> -</pre> -<p> - The above functions convert the argument to string and then call the base - <code class="computeroutput"><span class="identifier">set</span></code> function. These functions - have the same semantics as similar <code class="computeroutput"><span class="identifier">xml_attribute</span></code> - functions. You can <a class="link" href="modify.html#xml_attribute::set_value">refer to documentation - for the attribute functions</a> for details. - </p> -<a name="xml_text::assign"></a><p> - For convenience, all <code class="computeroutput"><span class="identifier">set</span></code> - functions have the corresponding assignment operators: - </p> -<pre class="programlisting"><span class="identifier">xml_text</span><span class="special">&</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_text</span><span class="special">&</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_text</span><span class="special">&</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_text</span><span class="special">&</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">double</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_text</span><span class="special">&</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">float</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_text</span><span class="special">&</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">bool</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_text</span><span class="special">&</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span> -<span class="identifier">xml_text</span><span class="special">&</span> <span class="identifier">xml_text</span><span class="special">::</span><span class="keyword">operator</span><span class="special">=(</span><span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="identifier">rhs</span><span class="special">);</span> -</pre> -<p> - These operators simply call the right <code class="computeroutput"><span class="identifier">set</span></code> - function and return the attribute they're called on; the return value of - <code class="computeroutput"><span class="identifier">set</span></code> is ignored, so errors - are ignored. - </p> -<p> - This is an example of using <code class="computeroutput"><span class="identifier">xml_text</span></code> - object to modify text contents (<a href="../samples/text.cpp" target="_top">samples/text.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// change project version -</span><span class="identifier">project</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"version"</span><span class="special">).</span><span class="identifier">text</span><span class="special">()</span> <span class="special">=</span> <span class="number">1.2</span><span class="special">;</span> - -<span class="comment">// add description element and set the contents -</span><span class="comment">// note that we do not have to explicitly add the node_pcdata child -</span><span class="identifier">project</span><span class="special">.</span><span class="identifier">append_child</span><span class="special">(</span><span class="string">"description"</span><span class="special">).</span><span class="identifier">text</span><span class="special">().</span><span class="identifier">set</span><span class="special">(</span><span class="string">"a test project"</span><span class="special">);</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.modify.clone"></a><a class="link" href="modify.html#manual.modify.clone" title="Cloning nodes/attributes"> Cloning nodes/attributes</a> -</h3></div></div></div> -<a name="xml_node::prepend_copy"></a><a name="xml_node::append_copy"></a><a name="xml_node::insert_copy_after"></a><a name="xml_node::insert_copy_before"></a><p> - With the help of previously described functions, it is possible to create - trees with any contents and structure, including cloning the existing data. - However since this is an often needed operation, pugixml provides built-in - node/attribute cloning facilities. Since nodes and attributes do not exist - without a document tree, you can't create a standalone copy - you have to - immediately insert it somewhere in the tree. For this, you can use one of - the following functions: - </p> -<pre class="programlisting"><span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">append_copy</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">proto</span><span class="special">);</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">prepend_copy</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">proto</span><span class="special">);</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_copy_after</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">proto</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">attr</span><span class="special">);</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_copy_before</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">proto</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_attribute</span><span class="special">&</span> <span class="identifier">attr</span><span class="special">);</span> - -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">append_copy</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">proto</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">prepend_copy</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">proto</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_copy_after</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">proto</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_copy_before</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">proto</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span> -</pre> -<p> - These functions mirror the structure of <code class="computeroutput"><span class="identifier">append_child</span></code>, - <code class="computeroutput"><span class="identifier">prepend_child</span></code>, <code class="computeroutput"><span class="identifier">insert_child_before</span></code> and related functions - - they take the handle to the prototype object, which is to be cloned, insert - a new attribute/node at the appropriate place, and then copy the attribute - data or the whole node subtree to the new object. The functions return the - handle to the resulting duplicate object, or null handle on failure. - </p> -<p> - The attribute is copied along with the name and value; the node is copied - along with its type, name and value; additionally attribute list and all - children are recursively cloned, resulting in the deep subtree clone. The - prototype object can be a part of the same document, or a part of any other - document. - </p> -<p> - The failure conditions resemble those of <code class="computeroutput"><span class="identifier">append_child</span></code>, - <code class="computeroutput"><span class="identifier">insert_child_before</span></code> and related - functions, <a class="link" href="modify.html#xml_node::append_child">consult their documentation - for more information</a>. There are additional caveats specific to cloning - functions: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Cloning null handles results in operation failure; - </li> -<li class="listitem"> - Node cloning starts with insertion of the node of the same type as that - of the prototype; for this reason, cloning functions can not be directly - used to clone entire documents, since <a class="link" href="dom.html#node_document">node_document</a> - is not a valid insertion type. The example below provides a workaround. - </li> -<li class="listitem"> - It is possible to copy a subtree as a child of some node inside this - subtree, i.e. <code class="computeroutput"><span class="identifier">node</span><span class="special">.</span><span class="identifier">append_copy</span><span class="special">(</span><span class="identifier">node</span><span class="special">.</span><span class="identifier">parent</span><span class="special">().</span><span class="identifier">parent</span><span class="special">());</span></code>. - This is a valid operation, and it results in a clone of the subtree in - the state before cloning started, i.e. no infinite recursion takes place. - </li> -</ul></div> -<p> - This is an example with one possible implementation of include tags in XML - (<a href="../samples/include.cpp" target="_top">samples/include.cpp</a>). It illustrates - node cloning and usage of other document modification functions: - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">load_preprocess</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span><span class="special">&</span> <span class="identifier">doc</span><span class="special">,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">path</span><span class="special">);</span> - -<span class="keyword">bool</span> <span class="identifier">preprocess</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span><span class="special">)</span> -<span class="special">{</span> - <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">child</span> <span class="special">=</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">first_child</span><span class="special">();</span> <span class="identifier">child</span><span class="special">;</span> <span class="special">)</span> - <span class="special">{</span> - <span class="keyword">if</span> <span class="special">(</span><span class="identifier">child</span><span class="special">.</span><span class="identifier">type</span><span class="special">()</span> <span class="special">==</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">node_pi</span> <span class="special">&&</span> <span class="identifier">strcmp</span><span class="special">(</span><span class="identifier">child</span><span class="special">.</span><span class="identifier">name</span><span class="special">(),</span> <span class="string">"include"</span><span class="special">)</span> <span class="special">==</span> <span class="number">0</span><span class="special">)</span> - <span class="special">{</span> - <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">include</span> <span class="special">=</span> <span class="identifier">child</span><span class="special">;</span> - - <span class="comment">// load new preprocessed document (note: ideally this should handle relative paths) -</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">path</span> <span class="special">=</span> <span class="identifier">include</span><span class="special">.</span><span class="identifier">value</span><span class="special">();</span> - - <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span> <span class="identifier">doc</span><span class="special">;</span> - <span class="keyword">if</span> <span class="special">(!</span><span class="identifier">load_preprocess</span><span class="special">(</span><span class="identifier">doc</span><span class="special">,</span> <span class="identifier">path</span><span class="special">))</span> <span class="keyword">return</span> <span class="keyword">false</span><span class="special">;</span> - - <span class="comment">// insert the comment marker above include directive -</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">insert_child_before</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">node_comment</span><span class="special">,</span> <span class="identifier">include</span><span class="special">).</span><span class="identifier">set_value</span><span class="special">(</span><span class="identifier">path</span><span class="special">);</span> - - <span class="comment">// copy the document above the include directive (this retains the original order!) -</span> <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">ic</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">first_child</span><span class="special">();</span> <span class="identifier">ic</span><span class="special">;</span> <span class="identifier">ic</span> <span class="special">=</span> <span class="identifier">ic</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">())</span> - <span class="special">{</span> - <span class="identifier">node</span><span class="special">.</span><span class="identifier">insert_copy_before</span><span class="special">(</span><span class="identifier">ic</span><span class="special">,</span> <span class="identifier">include</span><span class="special">);</span> - <span class="special">}</span> - - <span class="comment">// remove the include node and move to the next child -</span> <span class="identifier">child</span> <span class="special">=</span> <span class="identifier">child</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">();</span> - - <span class="identifier">node</span><span class="special">.</span><span class="identifier">remove_child</span><span class="special">(</span><span class="identifier">include</span><span class="special">);</span> - <span class="special">}</span> - <span class="keyword">else</span> - <span class="special">{</span> - <span class="keyword">if</span> <span class="special">(!</span><span class="identifier">preprocess</span><span class="special">(</span><span class="identifier">child</span><span class="special">))</span> <span class="keyword">return</span> <span class="keyword">false</span><span class="special">;</span> - - <span class="identifier">child</span> <span class="special">=</span> <span class="identifier">child</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">();</span> - <span class="special">}</span> - <span class="special">}</span> - - <span class="keyword">return</span> <span class="keyword">true</span><span class="special">;</span> -<span class="special">}</span> - -<span class="keyword">bool</span> <span class="identifier">load_preprocess</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span><span class="special">&</span> <span class="identifier">doc</span><span class="special">,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">path</span><span class="special">)</span> -<span class="special">{</span> - <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_file</span><span class="special">(</span><span class="identifier">path</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">parse_default</span> <span class="special">|</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">parse_pi</span><span class="special">);</span> <span class="comment">// for <?include?> -</span> - <span class="keyword">return</span> <span class="identifier">result</span> <span class="special">?</span> <span class="identifier">preprocess</span><span class="special">(</span><span class="identifier">doc</span><span class="special">)</span> <span class="special">:</span> <span class="keyword">false</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.modify.move"></a><a class="link" href="modify.html#manual.modify.move" title="Moving nodes"> Moving nodes</a> -</h3></div></div></div> -<a name="xml_node::prepend_move"></a><a name="xml_node::append_move"></a><a name="xml_node::insert_move_after"></a><a name="xml_node::insert_move_before"></a><p> - Sometimes instead of cloning a node you need to move an existing node to - a different position in a tree. This can be accomplished by copying the node - and removing the original; however, this is expensive since it results in - a lot of extra operations. For moving nodes within the same document tree, - you can use of the following functions instead: - </p> -<pre class="programlisting"><span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">append_move</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">moved</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">prepend_move</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">moved</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_move_after</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">moved</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span> -<span class="identifier">xml_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">insert_move_before</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">moved</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">);</span> -</pre> -<p> - These functions mirror the structure of <code class="computeroutput"><span class="identifier">append_copy</span></code>, - <code class="computeroutput"><span class="identifier">prepend_copy</span></code>, <code class="computeroutput"><span class="identifier">insert_copy_before</span></code> and <code class="computeroutput"><span class="identifier">insert_copy_after</span></code> - - they take the handle to the moved object and move it to the appropriate - place with all attributes and/or child nodes. The functions return the handle - to the resulting object (which is the same as the moved object), or null - handle on failure. - </p> -<p> - The failure conditions resemble those of <code class="computeroutput"><span class="identifier">append_child</span></code>, - <code class="computeroutput"><span class="identifier">insert_child_before</span></code> and related - functions, <a class="link" href="modify.html#xml_node::append_child">consult their documentation - for more information</a>. There are additional caveats specific to moving - functions: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Moving null handles results in operation failure; - </li> -<li class="listitem"> - Moving is only possible for nodes that belong to the same document; attempting - to move nodes between documents will fail. - </li> -<li class="listitem"> - <code class="computeroutput"><span class="identifier">insert_move_after</span></code> and - <code class="computeroutput"><span class="identifier">insert_move_before</span></code> functions - fail if the moved node is the same as the <code class="computeroutput"><span class="identifier">node</span></code> - argument (this operation would be a no-op otherwise). - </li> -<li class="listitem"> - It is impossible to move a subtree to a child of some node inside this - subtree, i.e. <code class="computeroutput"><span class="identifier">node</span><span class="special">.</span><span class="identifier">append_move</span><span class="special">(</span><span class="identifier">node</span><span class="special">.</span><span class="identifier">parent</span><span class="special">().</span><span class="identifier">parent</span><span class="special">());</span></code> - will fail. - </li> -</ul></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.modify.fragments"></a><a class="link" href="modify.html#manual.modify.fragments" title="Assembling document from fragments"> Assembling document from fragments</a> -</h3></div></div></div> -<a name="xml_node::append_buffer"></a><p> - pugixml provides several ways to assemble an XML document from other XML - documents. Assuming there is a set of document fragments, represented as - in-memory buffers, the implementation choices are as follows: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - Use a temporary document to parse the data from a string, then clone - the nodes to a destination node. For example: - </li></ul></div> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">append_fragment</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">target</span><span class="special">,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">buffer</span><span class="special">,</span> <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">)</span> -<span class="special">{</span> - <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span> <span class="identifier">doc</span><span class="special">;</span> - <span class="keyword">if</span> <span class="special">(!</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_buffer</span><span class="special">(</span><span class="identifier">buffer</span><span class="special">,</span> <span class="identifier">size</span><span class="special">))</span> <span class="keyword">return</span> <span class="keyword">false</span><span class="special">;</span> - - <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">child</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">first_child</span><span class="special">();</span> <span class="identifier">child</span><span class="special">;</span> <span class="identifier">child</span> <span class="special">=</span> <span class="identifier">child</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">())</span> - <span class="identifier">target</span><span class="special">.</span><span class="identifier">append_copy</span><span class="special">(</span><span class="identifier">child</span><span class="special">);</span> -<span class="special">}</span> -</pre> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - Cache the parsing step - instead of keeping in-memory buffers, keep document - objects that already contain the parsed fragment: - </li></ul></div> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">append_fragment</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">target</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span><span class="special">&</span> <span class="identifier">cached_fragment</span><span class="special">)</span> -<span class="special">{</span> - <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">child</span> <span class="special">=</span> <span class="identifier">cached_fragment</span><span class="special">.</span><span class="identifier">first_child</span><span class="special">();</span> <span class="identifier">child</span><span class="special">;</span> <span class="identifier">child</span> <span class="special">=</span> <span class="identifier">child</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">())</span> - <span class="identifier">target</span><span class="special">.</span><span class="identifier">append_copy</span><span class="special">(</span><span class="identifier">child</span><span class="special">);</span> -<span class="special">}</span> -</pre> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - Use xml_node::append_buffer directly: - </li></ul></div> -<pre class="programlisting"><span class="identifier">xml_parse_result</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">append_buffer</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">void</span><span class="special">*</span> <span class="identifier">contents</span><span class="special">,</span> <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">options</span> <span class="special">=</span> <span class="identifier">parse_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">);</span> -</pre> -<p> - The first method is more convenient, but slower than the other two. The relative - performance of <code class="computeroutput"><span class="identifier">append_copy</span></code> - and <code class="computeroutput"><span class="identifier">append_buffer</span></code> depends - on the buffer format - usually <code class="computeroutput"><span class="identifier">append_buffer</span></code> - is faster if the buffer is in native encoding (UTF-8 or wchar_t, depending - on <code class="computeroutput"><span class="identifier">PUGIXML_WCHAR_MODE</span></code>). At - the same time it might be less efficient in terms of memory usage - the implementation - makes a copy of the provided buffer, and the copy has the same lifetime as - the document - the memory used by that copy will be reclaimed after the document - is destroyed, but no sooner. Even deleting all nodes in the document, including - the appended ones, won't reclaim the memory. - </p> -<p> - <code class="computeroutput"><span class="identifier">append_buffer</span></code> behaves in - the same way as <a class="link" href="loading.html#xml_document::load_buffer">xml_document::load_buffer</a> - - the input buffer is a byte buffer, with size in bytes; the buffer is not - modified and can be freed after the function returns. - </p> -<a name="status_append_invalid_root"></a><p> - Since <code class="computeroutput"><span class="identifier">append_buffer</span></code> needs - to append child nodes to the current node, it only works if the current node - is either document or element node. Calling <code class="computeroutput"><span class="identifier">append_buffer</span></code> - on a node with any other type results in an error with <code class="computeroutput"><span class="identifier">status_append_invalid_root</span></code> - status. - </p> -</div> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2014 Arseny Kapoulkine<p> - Distributed under the MIT License - </p> -</div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <b>Modifying</b> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="access.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="saving.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -</body> -</html> diff --git a/docs/manual/saving.html b/docs/manual/saving.html deleted file mode 100644 index 0a9d642..0000000 --- a/docs/manual/saving.html +++ /dev/null @@ -1,543 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>Saving document</title> -<link rel="stylesheet" href="../pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../manual.html" title="pugixml 1.6"> -<link rel="up" href="../manual.html" title="pugixml 1.6"> -<link rel="prev" href="modify.html" title="Modifying document data"> -<link rel="next" href="xpath.html" title="XPath"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <b>Saving</b> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="modify.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="xpath.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -<hr> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.saving"></a><a class="link" href="saving.html" title="Saving document"> Saving document</a> -</h2></div></div></div> -<div class="toc"><dl class="toc"> -<dt><span class="section"><a href="saving.html#manual.saving.file"> Saving document to a file</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.stream"> Saving document to C++ IOstreams</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.writer"> Saving document via writer interface</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.subtree"> Saving a single subtree</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.options"> Output options</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.encoding"> Encodings</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.declaration"> Customizing document declaration</a></span></dt> -</dl></div> -<p> - Often after creating a new document or loading the existing one and processing - it, it is necessary to save the result back to file. Also it is occasionally - useful to output the whole document or a subtree to some stream; use cases - include debug printing, serialization via network or other text-oriented medium, - etc. pugixml provides several functions to output any subtree of the document - to a file, stream or another generic transport interface; these functions allow - to customize the output format (see <a class="xref" href="saving.html#manual.saving.options" title="Output options"> Output options</a>), and also perform - necessary encoding conversions (see <a class="xref" href="saving.html#manual.saving.encoding" title="Encodings"> Encodings</a>). This section documents - the relevant functionality. - </p> -<p> - Before writing to the destination the node/attribute data is properly formatted - according to the node type; all special XML symbols, such as < and &, - are properly escaped (unless <a class="link" href="saving.html#format_no_escapes">format_no_escapes</a> - flag is set). In order to guard against forgotten node/attribute names, empty - node/attribute names are printed as <code class="computeroutput"><span class="string">":anonymous"</span></code>. - For well-formed output, make sure all node and attribute names are set to meaningful - values. - </p> -<p> - CDATA sections with values that contain <code class="computeroutput"><span class="string">"]]>"</span></code> - are split into several sections as follows: section with value <code class="computeroutput"><span class="string">"pre]]>post"</span></code> is written as <code class="computeroutput"><span class="special"><![</span><span class="identifier">CDATA</span><span class="special">[</span><span class="identifier">pre</span><span class="special">]]]]><![</span><span class="identifier">CDATA</span><span class="special">[></span><span class="identifier">post</span><span class="special">]]></span></code>. - While this alters the structure of the document (if you load the document after - saving it, there will be two CDATA sections instead of one), this is the only - way to escape CDATA contents. - </p> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.saving.file"></a><a class="link" href="saving.html#manual.saving.file" title="Saving document to a file"> Saving document to a file</a> -</h3></div></div></div> -<a name="xml_document::save_file"></a><a name="xml_document::save_file_wide"></a><p> - If you want to save the whole document to a file, you can use one of the - following functions: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">save_file</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">path</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">indent</span> <span class="special">=</span> <span class="string">"\t"</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">format_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">bool</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">save_file</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">wchar_t</span><span class="special">*</span> <span class="identifier">path</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">indent</span> <span class="special">=</span> <span class="string">"\t"</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">format_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - These functions accept file path as its first argument, and also three optional - arguments, which specify indentation and other output options (see <a class="xref" href="saving.html#manual.saving.options" title="Output options"> Output options</a>) - and output data encoding (see <a class="xref" href="saving.html#manual.saving.encoding" title="Encodings"> Encodings</a>). The path has the target - operating system format, so it can be a relative or absolute one, it should - have the delimiters of the target system, it should have the exact case if - the target file system is case-sensitive, etc. - </p> -<p> - File path is passed to the system file opening function as is in case of - the first function (which accepts <code class="computeroutput"><span class="keyword">const</span> - <span class="keyword">char</span><span class="special">*</span> <span class="identifier">path</span></code>); the second function either uses - a special file opening function if it is provided by the runtime library - or converts the path to UTF-8 and uses the system file opening function. - </p> -<a name="xml_writer_file"></a><p> - <code class="computeroutput"><span class="identifier">save_file</span></code> opens the target - file for writing, outputs the requested header (by default a document declaration - is output, unless the document already has one), and then saves the document - contents. If the file could not be opened, the function returns <code class="computeroutput"><span class="keyword">false</span></code>. Calling <code class="computeroutput"><span class="identifier">save_file</span></code> - is equivalent to creating an <code class="computeroutput"><span class="identifier">xml_writer_file</span></code> - object with <code class="computeroutput"><span class="identifier">FILE</span><span class="special">*</span></code> - handle as the only constructor argument and then calling <code class="computeroutput"><span class="identifier">save</span></code>; - see <a class="xref" href="saving.html#manual.saving.writer" title="Saving document via writer interface"> Saving document via writer interface</a> for writer interface details. - </p> -<p> - This is a simple example of saving XML document to file (<a href="../samples/save_file.cpp" target="_top">samples/save_file.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// save document to file -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Saving result: "</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">save_file</span><span class="special">(</span><span class="string">"save_file_output.xml"</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.saving.stream"></a><a class="link" href="saving.html#manual.saving.stream" title="Saving document to C++ IOstreams"> Saving document to C++ IOstreams</a> -</h3></div></div></div> -<a name="xml_document::save_stream"></a><p> - To enhance interoperability pugixml provides functions for saving document - to any object which implements C++ <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span></code> - interface. This allows you to save documents to any standard C++ stream (i.e. - file stream) or any third-party compliant implementation (i.e. Boost Iostreams). - Most notably, this allows for easy debug output, since you can use <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span></code> - stream as saving target. There are two functions, one works with narrow character - streams, another handles wide character ones: - </p> -<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span><span class="special">&</span> <span class="identifier">stream</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">indent</span> <span class="special">=</span> <span class="string">"\t"</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">format_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">void</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wostream</span><span class="special">&</span> <span class="identifier">stream</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">indent</span> <span class="special">=</span> <span class="string">"\t"</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">format_default</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">save</span></code> with <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span></code> - argument saves the document to the stream in the same way as <code class="computeroutput"><span class="identifier">save_file</span></code> (i.e. with requested header and - with encoding conversions). On the other hand, <code class="computeroutput"><span class="identifier">save</span></code> - with <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstream</span></code> argument saves the document to - the wide stream with <a class="link" href="loading.html#encoding_wchar">encoding_wchar</a> - encoding. Because of this, using <code class="computeroutput"><span class="identifier">save</span></code> - with wide character streams requires careful (usually platform-specific) - stream setup (i.e. using the <code class="computeroutput"><span class="identifier">imbue</span></code> - function). Generally use of wide streams is discouraged, however it provides - you with the ability to save documents to non-Unicode encodings, i.e. you - can save Shift-JIS encoded data if you set the correct locale. - </p> -<a name="xml_writer_stream"></a><p> - Calling <code class="computeroutput"><span class="identifier">save</span></code> with stream - target is equivalent to creating an <code class="computeroutput"><span class="identifier">xml_writer_stream</span></code> - object with stream as the only constructor argument and then calling <code class="computeroutput"><span class="identifier">save</span></code>; see <a class="xref" href="saving.html#manual.saving.writer" title="Saving document via writer interface"> Saving document via writer interface</a> for writer - interface details. - </p> -<p> - This is a simple example of saving XML document to standard output (<a href="../samples/save_stream.cpp" target="_top">samples/save_stream.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// save document to standard output -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Document:\n"</span><span class="special">;</span> -<span class="identifier">doc</span><span class="special">.</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">);</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.saving.writer"></a><a class="link" href="saving.html#manual.saving.writer" title="Saving document via writer interface"> Saving document via writer interface</a> -</h3></div></div></div> -<a name="xml_document::save"></a><a name="xml_writer"></a><a name="xml_writer::write"></a><p> - All of the above saving functions are implemented in terms of writer interface. - This is a simple interface with a single function, which is called several - times during output process with chunks of document data as input: - </p> -<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">xml_writer</span> -<span class="special">{</span> -<span class="keyword">public</span><span class="special">:</span> - <span class="keyword">virtual</span> <span class="keyword">void</span> <span class="identifier">write</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">void</span><span class="special">*</span> <span class="identifier">data</span><span class="special">,</span> <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">)</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> -<span class="special">};</span> - -<span class="keyword">void</span> <span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">xml_writer</span><span class="special">&</span> <span class="identifier">writer</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">indent</span> <span class="special">=</span> <span class="string">"\t"</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">format_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - In order to output the document via some custom transport, for example sockets, - you should create an object which implements <code class="computeroutput"><span class="identifier">xml_writer</span></code> - interface and pass it to <code class="computeroutput"><span class="identifier">save</span></code> - function. <code class="computeroutput"><span class="identifier">xml_writer</span><span class="special">::</span><span class="identifier">write</span></code> function is called with a buffer - as an input, where <code class="computeroutput"><span class="identifier">data</span></code> points - to buffer start, and <code class="computeroutput"><span class="identifier">size</span></code> - is equal to the buffer size in bytes. <code class="computeroutput"><span class="identifier">write</span></code> - implementation must write the buffer to the transport; it can not save the - passed buffer pointer, as the buffer contents will change after <code class="computeroutput"><span class="identifier">write</span></code> returns. The buffer contains the - chunk of document data in the desired encoding. - </p> -<p> - <code class="computeroutput"><span class="identifier">write</span></code> function is called - with relatively large blocks (size is usually several kilobytes, except for - the last block that may be small), so there is often no need for additional - buffering in the implementation. - </p> -<p> - This is a simple example of custom writer for saving document data to STL - string (<a href="../samples/save_custom_writer.cpp" target="_top">samples/save_custom_writer.cpp</a>); - read the sample code for more complex examples: - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">xml_string_writer</span><span class="special">:</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_writer</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">result</span><span class="special">;</span> - - <span class="keyword">virtual</span> <span class="keyword">void</span> <span class="identifier">write</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">void</span><span class="special">*</span> <span class="identifier">data</span><span class="special">,</span> <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">)</span> - <span class="special">{</span> - <span class="identifier">result</span><span class="special">.</span><span class="identifier">append</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special"><</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*>(</span><span class="identifier">data</span><span class="special">),</span> <span class="identifier">size</span><span class="special">);</span> - <span class="special">}</span> -<span class="special">};</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.saving.subtree"></a><a class="link" href="saving.html#manual.saving.subtree" title="Saving a single subtree"> Saving a single subtree</a> -</h3></div></div></div> -<a name="xml_node::print"></a><a name="xml_node::print_stream"></a><p> - While the previously described functions save the whole document to the destination, - it is easy to save a single subtree. The following functions are provided: - </p> -<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">print</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span><span class="special">&</span> <span class="identifier">os</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">indent</span> <span class="special">=</span> <span class="string">"\t"</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">format_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">depth</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">void</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">print</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wostream</span><span class="special">&</span> <span class="identifier">os</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">indent</span> <span class="special">=</span> <span class="string">"\t"</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">format_default</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">depth</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">void</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">print</span><span class="special">(</span><span class="identifier">xml_writer</span><span class="special">&</span> <span class="identifier">writer</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">indent</span> <span class="special">=</span> <span class="string">"\t"</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">format_default</span><span class="special">,</span> <span class="identifier">xml_encoding</span> <span class="identifier">encoding</span> <span class="special">=</span> <span class="identifier">encoding_auto</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">depth</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - These functions have the same arguments with the same meaning as the corresponding - <code class="computeroutput"><span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">save</span></code> functions, and allow you to save the - subtree to either a C++ IOstream or to any object that implements <code class="computeroutput"><span class="identifier">xml_writer</span></code> interface. - </p> -<p> - Saving a subtree differs from saving the whole document: the process behaves - as if <a class="link" href="saving.html#format_write_bom">format_write_bom</a> is off, and - <a class="link" href="saving.html#format_no_declaration">format_no_declaration</a> is on, - even if actual values of the flags are different. This means that BOM is - not written to the destination, and document declaration is only written - if it is the node itself or is one of node's children. Note that this also - holds if you're saving a document; this example (<a href="../samples/save_subtree.cpp" target="_top">samples/save_subtree.cpp</a>) - illustrates the difference: - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// get a test document -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span> <span class="identifier">doc</span><span class="special">;</span> -<span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_string</span><span class="special">(</span><span class="string">"<foo bar='baz'><call>hey</call></foo>"</span><span class="special">);</span> - -<span class="comment">// print document to standard output (prints <?xml version="1.0"?><foo bar="baz"><call>hey</call></foo>) -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">,</span> <span class="string">""</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">format_raw</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// print document to standard output as a regular node (prints <foo bar="baz"><call>hey</call></foo>) -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">print</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">,</span> <span class="string">""</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">format_raw</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// print a subtree to standard output (prints <call>hey</call>) -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"foo"</span><span class="special">).</span><span class="identifier">child</span><span class="special">(</span><span class="string">"call"</span><span class="special">).</span><span class="identifier">print</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">,</span> <span class="string">""</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">format_raw</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.saving.options"></a><a class="link" href="saving.html#manual.saving.options" title="Output options"> Output options</a> -</h3></div></div></div> -<p> - All saving functions accept the optional parameter <code class="computeroutput"><span class="identifier">flags</span></code>. - This is a bitmask that customizes the output format; you can select the way - the document nodes are printed and select the needed additional information - that is output before the document contents. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - You should use the usual bitwise arithmetics to manipulate the bitmask: - to enable a flag, use <code class="computeroutput"><span class="identifier">mask</span> <span class="special">|</span> <span class="identifier">flag</span></code>; - to disable a flag, use <code class="computeroutput"><span class="identifier">mask</span> <span class="special">&</span> <span class="special">~</span><span class="identifier">flag</span></code>. - </p></td></tr> -</table></div> -<p> - These flags control the resulting tree contents: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <a name="format_indent"></a><code class="literal">format_indent</code> determines if all nodes - should be indented with the indentation string (this is an additional - parameter for all saving functions, and is <code class="computeroutput"><span class="string">"\t"</span></code> - by default). If this flag is on, before every node the indentation string - is output several times, where the amount of indentation depends on the - node's depth relative to the output subtree. This flag has no effect - if <a class="link" href="saving.html#format_raw">format_raw</a> is enabled. This flag - is <span class="bold"><strong>on</strong></span> by default. <br><br> - - </li> -<li class="listitem"> - <a name="format_raw"></a><code class="literal">format_raw</code> switches between formatted and - raw output. If this flag is on, the nodes are not indented in any way, - and also no newlines that are not part of document text are printed. - Raw mode can be used for serialization where the result is not intended - to be read by humans; also it can be useful if the document was parsed - with <a class="link" href="loading.html#parse_ws_pcdata">parse_ws_pcdata</a> flag, to - preserve the original document formatting as much as possible. This flag - is <span class="bold"><strong>off</strong></span> by default. <br><br> - - </li> -<li class="listitem"> - <a name="format_no_escapes"></a><code class="literal">format_no_escapes</code> disables output - escaping for attribute values and PCDATA contents. If this flag is off, - special symbols (', &, <, >) and all non-printable characters - (those with codepoint values less than 32) are converted to XML escape - sequences (i.e. &amp;) during output. If this flag is on, no text - processing is performed; therefore, output XML can be malformed if output - contents contains invalid symbols (i.e. having a stray < in the PCDATA - will make the output malformed). This flag is <span class="bold"><strong>off</strong></span> - by default. - </li> -</ul></div> -<p> - These flags control the additional output information: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - <a name="format_no_declaration"></a><code class="literal">format_no_declaration</code> disables - default node declaration output. By default, if the document is saved - via <code class="computeroutput"><span class="identifier">save</span></code> or <code class="computeroutput"><span class="identifier">save_file</span></code> function, and it does not - have any document declaration, a default declaration is output before - the document contents. Enabling this flag disables this declaration. - This flag has no effect in <code class="computeroutput"><span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">print</span></code> - functions: they never output the default declaration. This flag is <span class="bold"><strong>off</strong></span> by default. <br><br> - - </li> -<li class="listitem"> - <a name="format_write_bom"></a><code class="literal">format_write_bom</code> enables Byte Order - Mark (BOM) output. By default, no BOM is output, so in case of non UTF-8 - encodings the resulting document's encoding may not be recognized by - some parsers and text editors, if they do not implement sophisticated - encoding detection. Enabling this flag adds an encoding-specific BOM - to the output. This flag has no effect in <code class="computeroutput"><span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">print</span></code> - functions: they never output the BOM. This flag is <span class="bold"><strong>off</strong></span> - by default. - </li> -<li class="listitem"> - <a name="format_save_file_text"></a><code class="literal">format_save_file_text</code> changes - the file mode when using <code class="computeroutput"><span class="identifier">save_file</span></code> - function. By default, file is opened in binary mode, which means that - the output file will contain platform-independent newline \n (ASCII 10). - If this flag is on, file is opened in text mode, which on some systems - changes the newline format (i.e. on Windows you can use this flag to - output XML documents with \r\n (ASCII 13 10) newlines. This flag is - <span class="bold"><strong>off</strong></span> by default. - </li> -</ul></div> -<p> - Additionally, there is one predefined option mask: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> - <a name="format_default"></a><code class="literal">format_default</code> is the default set of - flags, i.e. it has all options set to their default values. It sets formatted - output with indentation, without BOM and with default node declaration, - if necessary. - </li></ul></div> -<p> - This is an example that shows the outputs of different output options (<a href="../samples/save_options.cpp" target="_top">samples/save_options.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// get a test document -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span> <span class="identifier">doc</span><span class="special">;</span> -<span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_string</span><span class="special">(</span><span class="string">"<foo bar='baz'><call>hey</call></foo>"</span><span class="special">);</span> - -<span class="comment">// default options; prints -</span><span class="comment">// <?xml version="1.0"?> -</span><span class="comment">// <foo bar="baz"> -</span><span class="comment">// <call>hey</call> -</span><span class="comment">// </foo> -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// default options with custom indentation string; prints -</span><span class="comment">// <?xml version="1.0"?> -</span><span class="comment">// <foo bar="baz"> -</span><span class="comment">// --<call>hey</call> -</span><span class="comment">// </foo> -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">,</span> <span class="string">"--"</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// default options without indentation; prints -</span><span class="comment">// <?xml version="1.0"?> -</span><span class="comment">// <foo bar="baz"> -</span><span class="comment">// <call>hey</call> -</span><span class="comment">// </foo> -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">,</span> <span class="string">"\t"</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">format_default</span> <span class="special">&</span> <span class="special">~</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">format_indent</span><span class="special">);</span> <span class="comment">// can also pass "" instead of indentation string for the same effect -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// raw output; prints -</span><span class="comment">// <?xml version="1.0"?><foo bar="baz"><call>hey</call></foo> -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">,</span> <span class="string">"\t"</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">format_raw</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// raw output without declaration; prints -</span><span class="comment">// <foo bar="baz"><call>hey</call></foo> -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">,</span> <span class="string">"\t"</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">format_raw</span> <span class="special">|</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">format_no_declaration</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.saving.encoding"></a><a class="link" href="saving.html#manual.saving.encoding" title="Encodings"> Encodings</a> -</h3></div></div></div> -<p> - pugixml supports all popular Unicode encodings (UTF-8, UTF-16 (big and little - endian), UTF-32 (big and little endian); UCS-2 is naturally supported since - it's a strict subset of UTF-16) and handles all encoding conversions during - output. The output encoding is set via the <code class="computeroutput"><span class="identifier">encoding</span></code> - parameter of saving functions, which is of type <code class="computeroutput"><span class="identifier">xml_encoding</span></code>. - The possible values for the encoding are documented in <a class="xref" href="loading.html#manual.loading.encoding" title="Encodings"> Encodings</a>; - the only flag that has a different meaning is <code class="computeroutput"><span class="identifier">encoding_auto</span></code>. - </p> -<p> - While all other flags set the exact encoding, <code class="computeroutput"><span class="identifier">encoding_auto</span></code> - is meant for automatic encoding detection. The automatic detection does not - make sense for output encoding, since there is usually nothing to infer the - actual encoding from, so here <code class="computeroutput"><span class="identifier">encoding_auto</span></code> - means UTF-8 encoding, which is the most popular encoding for XML data storage. - This is also the default value of output encoding; specify another value - if you do not want UTF-8 encoded output. - </p> -<p> - Also note that wide stream saving functions do not have <code class="computeroutput"><span class="identifier">encoding</span></code> - argument and always assume <a class="link" href="loading.html#encoding_wchar">encoding_wchar</a> - encoding. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - The current behavior for Unicode conversion is to skip all invalid UTF - sequences during conversion. This behavior should not be relied upon; if - your node/attribute names do not contain any valid UTF sequences, they - may be output as if they are empty, which will result in malformed XML - document. - </p></td></tr> -</table></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.saving.declaration"></a><a class="link" href="saving.html#manual.saving.declaration" title="Customizing document declaration"> Customizing document declaration</a> -</h3></div></div></div> -<p> - When you are saving the document using <code class="computeroutput"><span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">save</span><span class="special">()</span></code> or <code class="computeroutput"><span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">save_file</span><span class="special">()</span></code>, a default XML document declaration is - output, if <code class="computeroutput"><span class="identifier">format_no_declaration</span></code> - is not specified and if the document does not have a declaration node. However, - the default declaration is not customizable. If you want to customize the - declaration output, you need to create the declaration node yourself. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - By default the declaration node is not added to the document during parsing. - If you just need to preserve the original declaration node, you have to - add the flag <a class="link" href="loading.html#parse_declaration">parse_declaration</a> - to the parsing flags; the resulting document will contain the original - declaration node, which will be output during saving. - </p></td></tr> -</table></div> -<p> - Declaration node is a node with type <a class="link" href="dom.html#node_declaration">node_declaration</a>; - it behaves like an element node in that it has attributes with values (but - it does not have child nodes). Therefore setting custom version, encoding - or standalone declaration involves adding attributes and setting attribute - values. - </p> -<p> - This is an example that shows how to create a custom declaration node (<a href="../samples/save_declaration.cpp" target="_top">samples/save_declaration.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// get a test document -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span> <span class="identifier">doc</span><span class="special">;</span> -<span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_string</span><span class="special">(</span><span class="string">"<foo bar='baz'><call>hey</call></foo>"</span><span class="special">);</span> - -<span class="comment">// add a custom declaration node -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">decl</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">prepend_child</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">node_declaration</span><span class="special">);</span> -<span class="identifier">decl</span><span class="special">.</span><span class="identifier">append_attribute</span><span class="special">(</span><span class="string">"version"</span><span class="special">)</span> <span class="special">=</span> <span class="string">"1.0"</span><span class="special">;</span> -<span class="identifier">decl</span><span class="special">.</span><span class="identifier">append_attribute</span><span class="special">(</span><span class="string">"encoding"</span><span class="special">)</span> <span class="special">=</span> <span class="string">"UTF-8"</span><span class="special">;</span> -<span class="identifier">decl</span><span class="special">.</span><span class="identifier">append_attribute</span><span class="special">(</span><span class="string">"standalone"</span><span class="special">)</span> <span class="special">=</span> <span class="string">"no"</span><span class="special">;</span> - -<span class="comment">// <?xml version="1.0" encoding="UTF-8" standalone="no"?> -</span><span class="comment">// <foo bar="baz"> -</span><span class="comment">// <call>hey</call> -</span><span class="comment">// </foo> -</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2014 Arseny Kapoulkine<p> - Distributed under the MIT License - </p> -</div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <b>Saving</b> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="modify.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="xpath.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -</body> -</html> diff --git a/docs/manual/toc.html b/docs/manual/toc.html deleted file mode 100644 index 5ee8e0e..0000000 --- a/docs/manual/toc.html +++ /dev/null @@ -1,163 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>Table of Contents</title> -<link rel="stylesheet" href="../pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../manual.html" title="pugixml 1.6"> -<link rel="up" href="../manual.html" title="pugixml 1.6"> -<link rel="prev" href="apiref.html" title="API Reference"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <b>Table of Contents</b> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="apiref.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a> -</div></td> -</tr></table> -<hr> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.toc"></a><a class="link" href="toc.html" title="Table of Contents"> Table of Contents</a> -</h2></div></div></div> -<div class="toc"><dl class="toc"> -<dt><span class="section"><a href="../manual.html#manual.overview"> Overview</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="../manual.html#manual.overview.introduction"> Introduction</a></span></dt> -<dt><span class="section"><a href="../manual.html#manual.overview.feedback"> Feedback</a></span></dt> -<dt><span class="section"><a href="../manual.html#manual.overview.thanks"> Acknowledgments</a></span></dt> -<dt><span class="section"><a href="../manual.html#manual.overview.license"> License</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="install.html"> Installation</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="install.html#manual.install.getting"> Getting pugixml</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="install.html#manual.install.getting.source"> Source distributions</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.getting.git"> Git repository</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.getting.subversion"> Subversion repository</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="install.html#manual.install.building"> Building pugixml</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="install.html#manual.install.building.embed"> Building pugixml as - a part of another static library/executable</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.building.static"> Building pugixml as - a standalone static library</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.building.shared"> Building pugixml as - a standalone shared library</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.building.header"> Using pugixml in header-only - mode</a></span></dt> -<dt><span class="section"><a href="install.html#manual.install.building.config"> Additional configuration - options</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="install.html#manual.install.portability"> Portability</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="dom.html"> Document object model</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="dom.html#manual.dom.tree"> Tree structure</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.cpp"> C++ interface</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.unicode"> Unicode interface</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.thread"> Thread-safety guarantees</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.exception"> Exception guarantees</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.memory"> Memory management</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="dom.html#manual.dom.memory.custom"> Custom memory allocation/deallocation - functions</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.memory.tuning"> Memory consumption tuning</a></span></dt> -<dt><span class="section"><a href="dom.html#manual.dom.memory.internals"> Document memory management - internals</a></span></dt> -</dl></dd> -</dl></dd> -<dt><span class="section"><a href="loading.html"> Loading document</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="loading.html#manual.loading.file"> Loading document from file</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.memory"> Loading document from memory</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.stream"> Loading document from C++ IOstreams</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.errors"> Handling parsing errors</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.options"> Parsing options</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.encoding"> Encodings</a></span></dt> -<dt><span class="section"><a href="loading.html#manual.loading.w3c"> Conformance to W3C specification</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="access.html"> Accessing document data</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="access.html#manual.access.basic"> Basic traversal functions</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.nodedata"> Getting node data</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.attrdata"> Getting attribute data</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.contents"> Contents-based traversal functions</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.rangefor"> Range-based for-loop support</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.iterators"> Traversing node/attribute lists - via iterators</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.walker"> Recursive traversal with xml_tree_walker</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.predicate"> Searching for nodes/attributes - with predicates</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.text"> Working with text contents</a></span></dt> -<dt><span class="section"><a href="access.html#manual.access.misc"> Miscellaneous functions</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="modify.html"> Modifying document data</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="modify.html#manual.modify.nodedata"> Setting node data</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.attrdata"> Setting attribute data</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.add"> Adding nodes/attributes</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.remove"> Removing nodes/attributes</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.text"> Working with text contents</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.clone"> Cloning nodes/attributes</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.move"> Moving nodes</a></span></dt> -<dt><span class="section"><a href="modify.html#manual.modify.fragments"> Assembling document from fragments</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="saving.html"> Saving document</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="saving.html#manual.saving.file"> Saving document to a file</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.stream"> Saving document to C++ IOstreams</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.writer"> Saving document via writer interface</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.subtree"> Saving a single subtree</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.options"> Output options</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.encoding"> Encodings</a></span></dt> -<dt><span class="section"><a href="saving.html#manual.saving.declaration"> Customizing document declaration</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="xpath.html"> XPath</a></span></dt> -<dd><dl> -<dt><span class="section"><a href="xpath.html#manual.xpath.types"> XPath types</a></span></dt> -<dt><span class="section"><a href="xpath.html#manual.xpath.select"> Selecting nodes via XPath expression</a></span></dt> -<dt><span class="section"><a href="xpath.html#manual.xpath.query"> Using query objects</a></span></dt> -<dt><span class="section"><a href="xpath.html#manual.xpath.variables"> Using variables</a></span></dt> -<dt><span class="section"><a href="xpath.html#manual.xpath.errors"> Error handling</a></span></dt> -<dt><span class="section"><a href="xpath.html#manual.xpath.w3c"> Conformance to W3C specification</a></span></dt> -</dl></dd> -<dt><span class="section"><a href="changes.html"> Changelog</a></span></dt> -<dt><span class="section"><a href="apiref.html"> API Reference</a></span></dt> -<dt><span class="section"><a href="toc.html"> Table of Contents</a></span></dt> -</dl></div> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2014 Arseny Kapoulkine<p> - Distributed under the MIT License - </p> -</div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <a href="xpath.html">XPath</a> | - <a href="apiref.html">API Reference</a> | - <b>Table of Contents</b> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="apiref.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a> -</div></td> -</tr></table> -</body> -</html> diff --git a/docs/manual/xpath.html b/docs/manual/xpath.html deleted file mode 100644 index 574776d..0000000 --- a/docs/manual/xpath.html +++ /dev/null @@ -1,749 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>XPath</title> -<link rel="stylesheet" href="../pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../manual.html" title="pugixml 1.6"> -<link rel="up" href="../manual.html" title="pugixml 1.6"> -<link rel="prev" href="saving.html" title="Saving document"> -<link rel="next" href="changes.html" title="Changelog"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <b>XPath</b> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="saving.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="changes.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -<hr> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="manual.xpath"></a><a class="link" href="xpath.html" title="XPath"> XPath</a> -</h2></div></div></div> -<div class="toc"><dl class="toc"> -<dt><span class="section"><a href="xpath.html#manual.xpath.types"> XPath types</a></span></dt> -<dt><span class="section"><a href="xpath.html#manual.xpath.select"> Selecting nodes via XPath expression</a></span></dt> -<dt><span class="section"><a href="xpath.html#manual.xpath.query"> Using query objects</a></span></dt> -<dt><span class="section"><a href="xpath.html#manual.xpath.variables"> Using variables</a></span></dt> -<dt><span class="section"><a href="xpath.html#manual.xpath.errors"> Error handling</a></span></dt> -<dt><span class="section"><a href="xpath.html#manual.xpath.w3c"> Conformance to W3C specification</a></span></dt> -</dl></div> -<p> - If the task at hand is to select a subset of document nodes that match some - criteria, it is possible to code a function using the existing traversal functionality - for any practical criteria. However, often either a data-driven approach is - desirable, in case the criteria are not predefined and come from a file, or - it is inconvenient to use traversal interfaces and a higher-level DSL is required. - There is a standard language for XML processing, XPath, that can be useful - for these cases. pugixml implements an almost complete subset of XPath 1.0. - Because of differences in document object model and some performance implications, - there are minor violations of the official specifications, which can be found - in <a class="xref" href="xpath.html#manual.xpath.w3c" title="Conformance to W3C specification"> Conformance to W3C specification</a>. The rest of this section describes the interface for XPath - functionality. Please note that if you wish to learn to use XPath language, - you have to look for other tutorials or manuals; for example, you can read - <a href="http://www.w3schools.com/xpath/" target="_top">W3Schools XPath tutorial</a>, - <a href="http://www.tizag.com/xmlTutorial/xpathtutorial.php" target="_top">XPath tutorial - at tizag.com</a>, and <a href="http://www.w3.org/TR/xpath/" target="_top">the XPath - 1.0 specification</a>. - </p> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.xpath.types"></a><a class="link" href="xpath.html#manual.xpath.types" title="XPath types"> XPath types</a> -</h3></div></div></div> -<a name="xpath_value_type"></a><a name="xpath_type_number"></a><a name="xpath_type_string"></a><a name="xpath_type_boolean"></a><a name="xpath_type_node_set"></a><a name="xpath_type_none"></a><p> - Each XPath expression can have one of the following types: boolean, number, - string or node set. Boolean type corresponds to <code class="computeroutput"><span class="keyword">bool</span></code> - type, number type corresponds to <code class="computeroutput"><span class="keyword">double</span></code> - type, string type corresponds to either <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code> - or <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring</span></code>, depending on whether <a class="link" href="dom.html#manual.dom.unicode" title="Unicode interface">wide - character interface is enabled</a>, and node set corresponds to <a class="link" href="xpath.html#xpath_node_set">xpath_node_set</a> type. There is an enumeration, - <code class="computeroutput"><span class="identifier">xpath_value_type</span></code>, which can - take the values <code class="computeroutput"><span class="identifier">xpath_type_boolean</span></code>, - <code class="computeroutput"><span class="identifier">xpath_type_number</span></code>, <code class="computeroutput"><span class="identifier">xpath_type_string</span></code> or <code class="computeroutput"><span class="identifier">xpath_type_node_set</span></code>, - accordingly. - </p> -<a name="xpath_node"></a><a name="xpath_node::node"></a><a name="xpath_node::attribute"></a><a name="xpath_node::parent"></a><p> - Because an XPath node can be either a node or an attribute, there is a special - type, <code class="computeroutput"><span class="identifier">xpath_node</span></code>, which is - a discriminated union of these types. A value of this type contains two node - handles, one of <code class="computeroutput"><span class="identifier">xml_node</span></code> - type, and another one of <code class="computeroutput"><span class="identifier">xml_attribute</span></code> - type; at most one of them can be non-null. The accessors to get these handles - are available: - </p> -<pre class="programlisting"><span class="identifier">xml_node</span> <span class="identifier">xpath_node</span><span class="special">::</span><span class="identifier">node</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xml_attribute</span> <span class="identifier">xpath_node</span><span class="special">::</span><span class="identifier">attribute</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - XPath nodes can be null, in which case both accessors return null handles. - </p> -<p> - Note that as per XPath specification, each XPath node has a parent, which - can be retrieved via this function: - </p> -<pre class="programlisting"><span class="identifier">xml_node</span> <span class="identifier">xpath_node</span><span class="special">::</span><span class="identifier">parent</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">parent</span></code> function returns the - node's parent if the XPath node corresponds to <code class="computeroutput"><span class="identifier">xml_node</span></code> - handle (equivalent to <code class="computeroutput"><span class="identifier">node</span><span class="special">().</span><span class="identifier">parent</span><span class="special">()</span></code>), or the node to which the attribute belongs - to, if the XPath node corresponds to <code class="computeroutput"><span class="identifier">xml_attribute</span></code> - handle. For null nodes, <code class="computeroutput"><span class="identifier">parent</span></code> - returns null handle. - </p> -<a name="xpath_node::unspecified_bool_type"></a><a name="xpath_node::comparison"></a><p> - Like node and attribute handles, XPath node handles can be implicitly cast - to boolean-like object to check if it is a null node, and also can be compared - for equality with each other. - </p> -<a name="xpath_node::ctor"></a><p> - You can also create XPath nodes with one of the three constructors: the default - constructor, the constructor that takes node argument, and the constructor - that takes attribute and node arguments (in which case the attribute must - belong to the attribute list of the node). The constructor from <code class="computeroutput"><span class="identifier">xml_node</span></code> is implicit, so you can usually - pass <code class="computeroutput"><span class="identifier">xml_node</span></code> to functions - that expect <code class="computeroutput"><span class="identifier">xpath_node</span></code>. Apart - from that you usually don't need to create your own XPath node objects, since - they are returned to you via selection functions. - </p> -<a name="xpath_node_set"></a><p> - XPath expressions operate not on single nodes, but instead on node sets. - A node set is a collection of nodes, which can be optionally ordered in either - a forward document order or a reverse one. Document order is defined in XPath - specification; an XPath node is before another node in document order if - it appears before it in XML representation of the corresponding document. - </p> -<a name="xpath_node_set::const_iterator"></a><a name="xpath_node_set::begin"></a><a name="xpath_node_set::end"></a><p> - Node sets are represented by <code class="computeroutput"><span class="identifier">xpath_node_set</span></code> - object, which has an interface that resembles one of sequential random-access - containers. It has an iterator type along with usual begin/past-the-end iterator - accessors: - </p> -<pre class="programlisting"><span class="keyword">typedef</span> <span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">*</span> <span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">const_iterator</span><span class="special">;</span> -<span class="identifier">const_iterator</span> <span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">begin</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">const_iterator</span> <span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">end</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<a name="xpath_node_set::index"></a><a name="xpath_node_set::size"></a><a name="xpath_node_set::empty"></a><p> - And it also can be iterated via indices, just like <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span></code>: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> <span class="identifier">xpath_node_set</span><span class="special">::</span><span class="keyword">operator</span><span class="special">[](</span><span class="identifier">size_t</span> <span class="identifier">index</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">size_t</span> <span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">size</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">bool</span> <span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">empty</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - All of the above operations have the same semantics as that of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span></code>: - the iterators are random-access, all of the above operations are constant - time, and accessing the element at index that is greater or equal than the - set size results in undefined behavior. You can use both iterator-based and - index-based access for iteration, however the iterator-based one can be faster. - </p> -<a name="xpath_node_set::type"></a><a name="xpath_node_set::type_unsorted"></a><a name="xpath_node_set::type_sorted"></a><a name="xpath_node_set::type_sorted_reverse"></a><a name="xpath_node_set::sort"></a><p> - The order of iteration depends on the order of nodes inside the set; the - order can be queried via the following function: - </p> -<pre class="programlisting"><span class="keyword">enum</span> <span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">type_t</span> <span class="special">{</span><span class="identifier">type_unsorted</span><span class="special">,</span> <span class="identifier">type_sorted</span><span class="special">,</span> <span class="identifier">type_sorted_reverse</span><span class="special">};</span> -<span class="identifier">type_t</span> <span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">type</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">type</span></code> function returns the - current order of nodes; <code class="computeroutput"><span class="identifier">type_sorted</span></code> - means that the nodes are in forward document order, <code class="computeroutput"><span class="identifier">type_sorted_reverse</span></code> - means that the nodes are in reverse document order, and <code class="computeroutput"><span class="identifier">type_unsorted</span></code> - means that neither order is guaranteed (nodes can accidentally be in a sorted - order even if <code class="computeroutput"><span class="identifier">type</span><span class="special">()</span></code> - returns <code class="computeroutput"><span class="identifier">type_unsorted</span></code>). If - you require a specific order of iteration, you can change it via <code class="computeroutput"><span class="identifier">sort</span></code> function: - </p> -<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">sort</span><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">reverse</span> <span class="special">=</span> <span class="keyword">false</span><span class="special">);</span> -</pre> -<p> - Calling <code class="computeroutput"><span class="identifier">sort</span></code> sorts the nodes - in either forward or reverse document order, depending on the argument; after - this call <code class="computeroutput"><span class="identifier">type</span><span class="special">()</span></code> - will return <code class="computeroutput"><span class="identifier">type_sorted</span></code> or - <code class="computeroutput"><span class="identifier">type_sorted_reverse</span></code>. - </p> -<a name="xpath_node_set::first"></a><p> - Often the actual iteration is not needed; instead, only the first element - in document order is required. For this, a special accessor is provided: - </p> -<pre class="programlisting"><span class="identifier">xpath_node</span> <span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">first</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - This function returns the first node in forward document order from the set, - or null node if the set is empty. Note that while the result of the node - does not depend on the order of nodes in the set (i.e. on the result of - <code class="computeroutput"><span class="identifier">type</span><span class="special">()</span></code>), - the complexity does - if the set is sorted, the complexity is constant, otherwise - it is linear in the number of elements or worse. - </p> -<a name="xpath_node_set::ctor"></a><p> - While in the majority of cases the node set is returned by XPath functions, - sometimes there is a need to manually construct a node set. For such cases, - a constructor is provided which takes an iterator range (<code class="computeroutput"><span class="identifier">const_iterator</span></code> - is a typedef for <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">*</span></code>), and an optional type: - </p> -<pre class="programlisting"><span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">xpath_node_set</span><span class="special">(</span><span class="identifier">const_iterator</span> <span class="identifier">begin</span><span class="special">,</span> <span class="identifier">const_iterator</span> <span class="identifier">end</span><span class="special">,</span> <span class="identifier">type_t</span> <span class="identifier">type</span> <span class="special">=</span> <span class="identifier">type_unsorted</span><span class="special">);</span> -</pre> -<p> - The constructor copies the specified range and sets the specified type. The - objects in the range are not checked in any way; you'll have to ensure that - the range contains no duplicates, and that the objects are sorted according - to the <code class="computeroutput"><span class="identifier">type</span></code> parameter. Otherwise - XPath operations with this set may produce unexpected results. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.xpath.select"></a><a class="link" href="xpath.html#manual.xpath.select" title="Selecting nodes via XPath expression"> Selecting nodes via XPath expression</a> -</h3></div></div></div> -<a name="xml_node::select_node"></a><a name="xml_node::select_nodes"></a><p> - If you want to select nodes that match some XPath expression, you can do - it with the following functions: - </p> -<pre class="programlisting"><span class="identifier">xpath_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">select_node</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">query</span><span class="special">,</span> <span class="identifier">xpath_variable_set</span><span class="special">*</span> <span class="identifier">variables</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xpath_node_set</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">select_nodes</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">query</span><span class="special">,</span> <span class="identifier">xpath_variable_set</span><span class="special">*</span> <span class="identifier">variables</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - <code class="computeroutput"><span class="identifier">select_nodes</span></code> function compiles - the expression and then executes it with the node as a context node, and - returns the resulting node set. <code class="computeroutput"><span class="identifier">select_node</span></code> - returns only the first node in document order from the result, and is equivalent - to calling <code class="computeroutput"><span class="identifier">select_nodes</span><span class="special">(</span><span class="identifier">query</span><span class="special">).</span><span class="identifier">first</span><span class="special">()</span></code>. - If the XPath expression does not match anything, or the node handle is null, - <code class="computeroutput"><span class="identifier">select_nodes</span></code> returns an empty - set, and <code class="computeroutput"><span class="identifier">select_node</span></code> returns - null XPath node. - </p> -<p> - If exception handling is not disabled, both functions throw <a class="link" href="xpath.html#xpath_exception">xpath_exception</a> - if the query can not be compiled or if it returns a value with type other - than node set; see <a class="xref" href="xpath.html#manual.xpath.errors" title="Error handling"> Error handling</a> for details. - </p> -<a name="xml_node::select_node_precomp"></a><a name="xml_node::select_nodes_precomp"></a><p> - While compiling expressions is fast, the compilation time can introduce a - significant overhead if the same expression is used many times on small subtrees. - If you're doing many similar queries, consider compiling them into query - objects (see <a class="xref" href="xpath.html#manual.xpath.query" title="Using query objects"> Using query objects</a> for further reference). Once you get a compiled - query object, you can pass it to select functions instead of an expression - string: - </p> -<pre class="programlisting"><span class="identifier">xpath_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">select_node</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_query</span><span class="special">&</span> <span class="identifier">query</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xpath_node_set</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">select_nodes</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_query</span><span class="special">&</span> <span class="identifier">query</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - If exception handling is not disabled, both functions throw <a class="link" href="xpath.html#xpath_exception">xpath_exception</a> - if the query returns a value with type other than node set. - </p> -<p> - This is an example of selecting nodes using XPath expressions (<a href="../samples/xpath_select.cpp" target="_top">samples/xpath_select.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node_set</span> <span class="identifier">tools</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">select_nodes</span><span class="special">(</span><span class="string">"/Profile/Tools/Tool[@AllowRemote='true' and @DeriveCaptionFrom='lastparam']"</span><span class="special">);</span> - -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tools:\n"</span><span class="special">;</span> - -<span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">const_iterator</span> <span class="identifier">it</span> <span class="special">=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span> <span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span> <span class="special">++</span><span class="identifier">it</span><span class="special">)</span> -<span class="special">{</span> - <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node</span> <span class="identifier">node</span> <span class="special">=</span> <span class="special">*</span><span class="identifier">it</span><span class="special">;</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">node</span><span class="special">().</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"\n"</span><span class="special">;</span> -<span class="special">}</span> - -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node</span> <span class="identifier">build_tool</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">select_node</span><span class="special">(</span><span class="string">"//Tool[contains(Description, 'build system')]"</span><span class="special">);</span> - -<span class="keyword">if</span> <span class="special">(</span><span class="identifier">build_tool</span><span class="special">)</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Build tool: "</span> <span class="special"><<</span> <span class="identifier">build_tool</span><span class="special">.</span><span class="identifier">node</span><span class="special">().</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"\n"</span><span class="special">;</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.xpath.query"></a><a class="link" href="xpath.html#manual.xpath.query" title="Using query objects"> Using query objects</a> -</h3></div></div></div> -<a name="xpath_query"></a><p> - When you call <code class="computeroutput"><span class="identifier">select_nodes</span></code> - with an expression string as an argument, a query object is created behind - the scenes. A query object represents a compiled XPath expression. Query - objects can be needed in the following circumstances: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - You can precompile expressions to query objects to save compilation time - if it becomes an issue; - </li> -<li class="listitem"> - You can use query objects to evaluate XPath expressions which result - in booleans, numbers or strings; - </li> -<li class="listitem"> - You can get the type of expression value via query object. - </li> -</ul></div> -<p> - Query objects correspond to <code class="computeroutput"><span class="identifier">xpath_query</span></code> - type. They are immutable and non-copyable: they are bound to the expression - at creation time and can not be cloned. If you want to put query objects - in a container, allocate them on heap via <code class="computeroutput"><span class="keyword">new</span></code> - operator and store pointers to <code class="computeroutput"><span class="identifier">xpath_query</span></code> - in the container. - </p> -<a name="xpath_query::ctor"></a><p> - You can create a query object with the constructor that takes XPath expression - as an argument: - </p> -<pre class="programlisting"><span class="keyword">explicit</span> <span class="identifier">xpath_query</span><span class="special">::</span><span class="identifier">xpath_query</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">query</span><span class="special">,</span> <span class="identifier">xpath_variable_set</span><span class="special">*</span> <span class="identifier">variables</span> <span class="special">=</span> <span class="number">0</span><span class="special">);</span> -</pre> -<a name="xpath_query::return_type"></a><p> - The expression is compiled and the compiled representation is stored in the - new query object. If compilation fails, <a class="link" href="xpath.html#xpath_exception">xpath_exception</a> - is thrown if exception handling is not disabled (see <a class="xref" href="xpath.html#manual.xpath.errors" title="Error handling"> Error handling</a> for - details). After the query is created, you can query the type of the evaluation - result using the following function: - </p> -<pre class="programlisting"><span class="identifier">xpath_value_type</span> <span class="identifier">xpath_query</span><span class="special">::</span><span class="identifier">return_type</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<a name="xpath_query::evaluate_boolean"></a><a name="xpath_query::evaluate_number"></a><a name="xpath_query::evaluate_string"></a><a name="xpath_query::evaluate_node_set"></a><a name="xpath_query::evaluate_node"></a><p> - You can evaluate the query using one of the following functions: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xpath_query</span><span class="special">::</span><span class="identifier">evaluate_boolean</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">double</span> <span class="identifier">xpath_query</span><span class="special">::</span><span class="identifier">evaluate_number</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">string_t</span> <span class="identifier">xpath_query</span><span class="special">::</span><span class="identifier">evaluate_string</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xpath_node_set</span> <span class="identifier">xpath_query</span><span class="special">::</span><span class="identifier">evaluate_node_set</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xpath_node</span> <span class="identifier">xpath_query</span><span class="special">::</span><span class="identifier">evaluate_node</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - All functions take the context node as an argument, compute the expression - and return the result, converted to the requested type. According to XPath - specification, value of any type can be converted to boolean, number or string - value, but no type other than node set can be converted to node set. Because - of this, <code class="computeroutput"><span class="identifier">evaluate_boolean</span></code>, - <code class="computeroutput"><span class="identifier">evaluate_number</span></code> and <code class="computeroutput"><span class="identifier">evaluate_string</span></code> always return a result, - but <code class="computeroutput"><span class="identifier">evaluate_node_set</span></code> and - <code class="computeroutput"><span class="identifier">evaluate_node</span></code> result in an - error if the return type is not node set (see <a class="xref" href="xpath.html#manual.xpath.errors" title="Error handling"> Error handling</a>). - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - Calling <code class="computeroutput"><span class="identifier">node</span><span class="special">.</span><span class="identifier">select_nodes</span><span class="special">(</span><span class="string">"query"</span><span class="special">)</span></code> - is equivalent to calling <code class="computeroutput"><span class="identifier">xpath_query</span><span class="special">(</span><span class="string">"query"</span><span class="special">).</span><span class="identifier">evaluate_node_set</span><span class="special">(</span><span class="identifier">node</span><span class="special">)</span></code>. Calling <code class="computeroutput"><span class="identifier">node</span><span class="special">.</span><span class="identifier">select_node</span><span class="special">(</span><span class="string">"query"</span><span class="special">)</span></code> is equivalent to calling <code class="computeroutput"><span class="identifier">xpath_query</span><span class="special">(</span><span class="string">"query"</span><span class="special">).</span><span class="identifier">evaluate_node</span><span class="special">(</span><span class="identifier">node</span><span class="special">)</span></code>. - </p></td></tr> -</table></div> -<a name="xpath_query::evaluate_string_buffer"></a><p> - Note that <code class="computeroutput"><span class="identifier">evaluate_string</span></code> - function returns the STL string; as such, it's not available in <a class="link" href="install.html#PUGIXML_NO_STL">PUGIXML_NO_STL</a> - mode and also usually allocates memory. There is another string evaluation - function: - </p> -<pre class="programlisting"><span class="identifier">size_t</span> <span class="identifier">xpath_query</span><span class="special">::</span><span class="identifier">evaluate_string</span><span class="special">(</span><span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">buffer</span><span class="special">,</span> <span class="identifier">size_t</span> <span class="identifier">capacity</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xpath_node</span><span class="special">&</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - This function evaluates the string, and then writes the result to <code class="computeroutput"><span class="identifier">buffer</span></code> (but at most <code class="computeroutput"><span class="identifier">capacity</span></code> - characters); then it returns the full size of the result in characters, including - the terminating zero. If <code class="computeroutput"><span class="identifier">capacity</span></code> - is not 0, the resulting buffer is always zero-terminated. You can use this - function as follows: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - First call the function with <code class="computeroutput"><span class="identifier">buffer</span> - <span class="special">=</span> <span class="number">0</span></code> - and <code class="computeroutput"><span class="identifier">capacity</span> <span class="special">=</span> - <span class="number">0</span></code>; then allocate the returned amount - of characters, and call the function again, passing the allocated storage - and the amount of characters; - </li> -<li class="listitem"> - First call the function with small buffer and buffer capacity; then, - if the result is larger than the capacity, the output has been trimmed, - so allocate a larger buffer and call the function again. - </li> -</ul></div> -<p> - This is an example of using query objects (<a href="../samples/xpath_query.cpp" target="_top">samples/xpath_query.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// Select nodes via compiled query -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_query</span> <span class="identifier">query_remote_tools</span><span class="special">(</span><span class="string">"/Profile/Tools/Tool[@AllowRemote='true']"</span><span class="special">);</span> - -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node_set</span> <span class="identifier">tools</span> <span class="special">=</span> <span class="identifier">query_remote_tools</span><span class="special">.</span><span class="identifier">evaluate_node_set</span><span class="special">(</span><span class="identifier">doc</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Remote tool: "</span><span class="special">;</span> -<span class="identifier">tools</span><span class="special">[</span><span class="number">2</span><span class="special">].</span><span class="identifier">node</span><span class="special">().</span><span class="identifier">print</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">);</span> - -<span class="comment">// Evaluate numbers via compiled query -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_query</span> <span class="identifier">query_timeouts</span><span class="special">(</span><span class="string">"sum(//Tool/@Timeout)"</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">query_timeouts</span><span class="special">.</span><span class="identifier">evaluate_number</span><span class="special">(</span><span class="identifier">doc</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// Evaluate strings via compiled query for different context nodes -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_query</span> <span class="identifier">query_name_valid</span><span class="special">(</span><span class="string">"string-length(substring-before(@Filename, '_')) > 0 and @OutputFileMasks"</span><span class="special">);</span> -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_query</span> <span class="identifier">query_name</span><span class="special">(</span><span class="string">"concat(substring-before(@Filename, '_'), ' produces ', @OutputFileMasks)"</span><span class="special">);</span> - -<span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">first_element_by_path</span><span class="special">(</span><span class="string">"Profile/Tools/Tool"</span><span class="special">);</span> <span class="identifier">tool</span><span class="special">;</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">())</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">s</span> <span class="special">=</span> <span class="identifier">query_name</span><span class="special">.</span><span class="identifier">evaluate_string</span><span class="special">(</span><span class="identifier">tool</span><span class="special">);</span> - - <span class="keyword">if</span> <span class="special">(</span><span class="identifier">query_name_valid</span><span class="special">.</span><span class="identifier">evaluate_boolean</span><span class="special">(</span><span class="identifier">tool</span><span class="special">))</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">s</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.xpath.variables"></a><a class="link" href="xpath.html#manual.xpath.variables" title="Using variables"> Using variables</a> -</h3></div></div></div> -<p> - XPath queries may contain references to variables; this is useful if you - want to use queries that depend on some dynamic parameter without manually - preparing the complete query string, or if you want to reuse the same query - object for similar queries. - </p> -<p> - Variable references have the form <code class="computeroutput"><span class="identifier">$name</span></code>; in order to use them, you have to provide - a variable set, which includes all variables present in the query with correct - types. This set is passed to <code class="computeroutput"><span class="identifier">xpath_query</span></code> - constructor or to <code class="computeroutput"><span class="identifier">select_nodes</span></code>/<code class="computeroutput"><span class="identifier">select_node</span></code> functions: - </p> -<pre class="programlisting"><span class="keyword">explicit</span> <span class="identifier">xpath_query</span><span class="special">::</span><span class="identifier">xpath_query</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">query</span><span class="special">,</span> <span class="identifier">xpath_variable_set</span><span class="special">*</span> <span class="identifier">variables</span> <span class="special">=</span> <span class="number">0</span><span class="special">);</span> -<span class="identifier">xpath_node</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">select_node</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">query</span><span class="special">,</span> <span class="identifier">xpath_variable_set</span><span class="special">*</span> <span class="identifier">variables</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xpath_node_set</span> <span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">select_nodes</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">query</span><span class="special">,</span> <span class="identifier">xpath_variable_set</span><span class="special">*</span> <span class="identifier">variables</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - If you're using query objects, you can change the variable values before - <code class="computeroutput"><span class="identifier">evaluate</span></code>/<code class="computeroutput"><span class="identifier">select</span></code> - calls to change the query behavior. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - The variable set pointer is stored in the query object; you have to ensure - that the lifetime of the set exceeds that of query object. - </p></td></tr> -</table></div> -<a name="xpath_variable_set"></a><p> - Variable sets correspond to <code class="computeroutput"><span class="identifier">xpath_variable_set</span></code> - type, which is essentially a variable container. - </p> -<a name="xpath_variable_set::add"></a><p> - You can add new variables with the following function: - </p> -<pre class="programlisting"><span class="identifier">xpath_variable</span><span class="special">*</span> <span class="identifier">xpath_variable_set</span><span class="special">::</span><span class="identifier">add</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">,</span> <span class="identifier">xpath_value_type</span> <span class="identifier">type</span><span class="special">);</span> -</pre> -<p> - The function tries to add a new variable with the specified name and type; - if the variable with such name does not exist in the set, the function adds - a new variable and returns the variable handle; if there is already a variable - with the specified name, the function returns the variable handle if variable - has the specified type. Otherwise the function returns null pointer; it also - returns null pointer on allocation failure. - </p> -<p> - New variables are assigned the default value which depends on the type: - <code class="computeroutput"><span class="number">0</span></code> for numbers, <code class="computeroutput"><span class="keyword">false</span></code> for booleans, empty string for strings - and empty set for node sets. - </p> -<a name="xpath_variable_set::get"></a><p> - You can get the existing variables with the following functions: - </p> -<pre class="programlisting"><span class="identifier">xpath_variable</span><span class="special">*</span> <span class="identifier">xpath_variable_set</span><span class="special">::</span><span class="identifier">get</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">);</span> -<span class="keyword">const</span> <span class="identifier">xpath_variable</span><span class="special">*</span> <span class="identifier">xpath_variable_set</span><span class="special">::</span><span class="identifier">get</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - The functions return the variable handle, or null pointer if the variable - with the specified name is not found. - </p> -<a name="xpath_variable_set::set"></a><p> - Additionally, there are the helper functions for setting the variable value - by name; they try to add the variable with the corresponding type, if it - does not exist, and to set the value. If the variable with the same name - but with different type is already present, they return <code class="computeroutput"><span class="keyword">false</span></code>; - they also return <code class="computeroutput"><span class="keyword">false</span></code> on allocation - failure. Note that these functions do not perform any type conversions. - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xpath_variable_set</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">,</span> <span class="keyword">bool</span> <span class="identifier">value</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xpath_variable_set</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">,</span> <span class="keyword">double</span> <span class="identifier">value</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xpath_variable_set</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">value</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xpath_variable_set</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">name</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xpath_node_set</span><span class="special">&</span> <span class="identifier">value</span><span class="special">);</span> -</pre> -<p> - The variable values are copied to the internal variable storage, so you can - modify or destroy them after the functions return. - </p> -<a name="xpath_variable"></a><p> - If setting variables by name is not efficient enough, or if you have to inspect - variable information or get variable values, you can use variable handles. - A variable corresponds to the <code class="computeroutput"><span class="identifier">xpath_variable</span></code> - type, and a variable handle is simply a pointer to <code class="computeroutput"><span class="identifier">xpath_variable</span></code>. - </p> -<a name="xpath_variable::type"></a><a name="xpath_variable::name"></a><p> - In order to get variable information, you can use one of the following functions: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xpath_variable</span><span class="special">::</span><span class="identifier">name</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="identifier">xpath_value_type</span> <span class="identifier">xpath_variable</span><span class="special">::</span><span class="identifier">type</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - Note that each variable has a distinct type which is specified upon variable - creation and can not be changed later. - </p> -<a name="xpath_variable::get_boolean"></a><a name="xpath_variable::get_number"></a><a name="xpath_variable::get_string"></a><a name="xpath_variable::get_node_set"></a><p> - In order to get variable value, you should use one of the following functions, - depending on the variable type: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xpath_variable</span><span class="special">::</span><span class="identifier">get_boolean</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">double</span> <span class="identifier">xpath_variable</span><span class="special">::</span><span class="identifier">get_number</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">xpath_variable</span><span class="special">::</span><span class="identifier">get_string</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="keyword">const</span> <span class="identifier">xpath_node_set</span><span class="special">&</span> <span class="identifier">xpath_variable</span><span class="special">::</span><span class="identifier">get_node_set</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - These functions return the value of the variable. Note that no type conversions - are performed; if the type mismatch occurs, a dummy value is returned (<code class="computeroutput"><span class="keyword">false</span></code> for booleans, <code class="computeroutput"><span class="identifier">NaN</span></code> - for numbers, empty string for strings and empty set for node sets). - </p> -<a name="xpath_variable::set"></a><p> - In order to set variable value, you should use one of the following functions, - depending on the variable type: - </p> -<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">xpath_variable</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">value</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xpath_variable</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">double</span> <span class="identifier">value</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xpath_variable</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">char_t</span><span class="special">*</span> <span class="identifier">value</span><span class="special">);</span> -<span class="keyword">bool</span> <span class="identifier">xpath_variable</span><span class="special">::</span><span class="identifier">set</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">xpath_node_set</span><span class="special">&</span> <span class="identifier">value</span><span class="special">);</span> -</pre> -<p> - These functions modify the variable value. Note that no type conversions - are performed; if the type mismatch occurs, the functions return <code class="computeroutput"><span class="keyword">false</span></code>; they also return <code class="computeroutput"><span class="keyword">false</span></code> - on allocation failure. The variable values are copied to the internal variable - storage, so you can modify or destroy them after the functions return. - </p> -<p> - This is an example of using variables in XPath queries (<a href="../samples/xpath_variables.cpp" target="_top">samples/xpath_variables.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// Select nodes via compiled query -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_variable_set</span> <span class="identifier">vars</span><span class="special">;</span> -<span class="identifier">vars</span><span class="special">.</span><span class="identifier">add</span><span class="special">(</span><span class="string">"remote"</span><span class="special">,</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_type_boolean</span><span class="special">);</span> - -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_query</span> <span class="identifier">query_remote_tools</span><span class="special">(</span><span class="string">"/Profile/Tools/Tool[@AllowRemote = string($remote)]"</span><span class="special">,</span> <span class="special">&</span><span class="identifier">vars</span><span class="special">);</span> - -<span class="identifier">vars</span><span class="special">.</span><span class="identifier">set</span><span class="special">(</span><span class="string">"remote"</span><span class="special">,</span> <span class="keyword">true</span><span class="special">);</span> -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node_set</span> <span class="identifier">tools_remote</span> <span class="special">=</span> <span class="identifier">query_remote_tools</span><span class="special">.</span><span class="identifier">evaluate_node_set</span><span class="special">(</span><span class="identifier">doc</span><span class="special">);</span> - -<span class="identifier">vars</span><span class="special">.</span><span class="identifier">set</span><span class="special">(</span><span class="string">"remote"</span><span class="special">,</span> <span class="keyword">false</span><span class="special">);</span> -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node_set</span> <span class="identifier">tools_local</span> <span class="special">=</span> <span class="identifier">query_remote_tools</span><span class="special">.</span><span class="identifier">evaluate_node_set</span><span class="special">(</span><span class="identifier">doc</span><span class="special">);</span> - -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Remote tool: "</span><span class="special">;</span> -<span class="identifier">tools_remote</span><span class="special">[</span><span class="number">2</span><span class="special">].</span><span class="identifier">node</span><span class="special">().</span><span class="identifier">print</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">);</span> - -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Local tool: "</span><span class="special">;</span> -<span class="identifier">tools_local</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">node</span><span class="special">().</span><span class="identifier">print</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">);</span> - -<span class="comment">// You can pass the context directly to select_nodes/select_node -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node_set</span> <span class="identifier">tools_local_imm</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">select_nodes</span><span class="special">(</span><span class="string">"/Profile/Tools/Tool[@AllowRemote = string($remote)]"</span><span class="special">,</span> <span class="special">&</span><span class="identifier">vars</span><span class="special">);</span> - -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Local tool imm: "</span><span class="special">;</span> -<span class="identifier">tools_local_imm</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">node</span><span class="special">().</span><span class="identifier">print</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">);</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.xpath.errors"></a><a class="link" href="xpath.html#manual.xpath.errors" title="Error handling"> Error handling</a> -</h3></div></div></div> -<p> - There are two different mechanisms for error handling in XPath implementation; - the mechanism used depends on whether exception support is disabled (this - is controlled with <a class="link" href="install.html#PUGIXML_NO_EXCEPTIONS">PUGIXML_NO_EXCEPTIONS</a> - define). - </p> -<a name="xpath_exception"></a><a name="xpath_exception::result"></a><a name="xpath_exception::what"></a><p> - By default, XPath functions throw <code class="computeroutput"><span class="identifier">xpath_exception</span></code> - object in case of errors; additionally, in the event any memory allocation - fails, an <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">bad_alloc</span></code> exception is thrown. Also <code class="computeroutput"><span class="identifier">xpath_exception</span></code> is thrown if the query - is evaluated to a node set, but the return type is not node set. If the query - constructor succeeds (i.e. no exception is thrown), the query object is valid. - Otherwise you can get the error details via one of the following functions: - </p> -<pre class="programlisting"><span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">xpath_exception</span><span class="special">::</span><span class="identifier">what</span><span class="special">()</span> <span class="keyword">const</span> <span class="keyword">throw</span><span class="special">();</span> -<span class="keyword">const</span> <span class="identifier">xpath_parse_result</span><span class="special">&</span> <span class="identifier">xpath_exception</span><span class="special">::</span><span class="identifier">result</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<a name="xpath_query::unspecified_bool_type"></a><a name="xpath_query::result"></a><p> - If exceptions are disabled, then in the event of parsing failure the query - is initialized to invalid state; you can test if the query object is valid - by using it in a boolean expression: <code class="computeroutput"><span class="keyword">if</span> - <span class="special">(</span><span class="identifier">query</span><span class="special">)</span> <span class="special">{</span> <span class="special">...</span> - <span class="special">}</span></code>. Additionally, you can get parsing - result via the result() accessor: - </p> -<pre class="programlisting"><span class="keyword">const</span> <span class="identifier">xpath_parse_result</span><span class="special">&</span> <span class="identifier">xpath_query</span><span class="special">::</span><span class="identifier">result</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -</pre> -<p> - Without exceptions, evaluating invalid query results in <code class="computeroutput"><span class="keyword">false</span></code>, - empty string, NaN or an empty node set, depending on the type; evaluating - a query as a node set results in an empty node set if the return type is - not node set. - </p> -<a name="xpath_parse_result"></a><p> - The information about parsing result is returned via <code class="computeroutput"><span class="identifier">xpath_parse_result</span></code> - object. It contains parsing status and the offset of last successfully parsed - character from the beginning of the source stream: - </p> -<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">xpath_parse_result</span> -<span class="special">{</span> - <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">error</span><span class="special">;</span> - <span class="identifier">ptrdiff_t</span> <span class="identifier">offset</span><span class="special">;</span> - - <span class="keyword">operator</span> <span class="keyword">bool</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> - <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">description</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> -<span class="special">};</span> -</pre> -<a name="xpath_parse_result::error"></a><p> - Parsing result is represented as the error message; it is either a null pointer, - in case there is no error, or the error message in the form of ASCII zero-terminated - string. - </p> -<a name="xpath_parse_result::description"></a><p> - <code class="computeroutput"><span class="identifier">description</span><span class="special">()</span></code> - member function can be used to get the error message; it never returns the - null pointer, so you can safely use <code class="computeroutput"><span class="identifier">description</span><span class="special">()</span></code> even if query parsing succeeded. Note that - <code class="computeroutput"><span class="identifier">description</span><span class="special">()</span></code> - returns a <code class="computeroutput"><span class="keyword">char</span></code> string even in - <code class="computeroutput"><span class="identifier">PUGIXML_WCHAR_MODE</span></code>; you'll - have to call <a class="link" href="dom.html#as_wide">as_wide</a> to get the <code class="computeroutput"><span class="keyword">wchar_t</span></code> string. - </p> -<a name="xpath_parse_result::offset"></a><p> - In addition to the error message, parsing result has an <code class="computeroutput"><span class="identifier">offset</span></code> - member, which contains the offset of last successfully parsed character. - This offset is in units of <a class="link" href="dom.html#char_t">pugi::char_t</a> (bytes - for character mode, wide characters for wide character mode). - </p> -<a name="xpath_parse_result::bool"></a><p> - Parsing result object can be implicitly converted to <code class="computeroutput"><span class="keyword">bool</span></code> - like this: <code class="computeroutput"><span class="keyword">if</span> <span class="special">(</span><span class="identifier">result</span><span class="special">)</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span> - <span class="keyword">else</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span></code>. - </p> -<p> - This is an example of XPath error handling (<a href="../samples/xpath_error.cpp" target="_top">samples/xpath_error.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// Exception is thrown for incorrect query syntax -</span><span class="keyword">try</span> -<span class="special">{</span> - <span class="identifier">doc</span><span class="special">.</span><span class="identifier">select_nodes</span><span class="special">(</span><span class="string">"//nodes[#true()]"</span><span class="special">);</span> -<span class="special">}</span> -<span class="keyword">catch</span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_exception</span><span class="special">&</span> <span class="identifier">e</span><span class="special">)</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Select failed: "</span> <span class="special"><<</span> <span class="identifier">e</span><span class="special">.</span><span class="identifier">what</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="special">}</span> - -<span class="comment">// Exception is thrown for incorrect query semantics -</span><span class="keyword">try</span> -<span class="special">{</span> - <span class="identifier">doc</span><span class="special">.</span><span class="identifier">select_nodes</span><span class="special">(</span><span class="string">"(123)/next"</span><span class="special">);</span> -<span class="special">}</span> -<span class="keyword">catch</span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_exception</span><span class="special">&</span> <span class="identifier">e</span><span class="special">)</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Select failed: "</span> <span class="special"><<</span> <span class="identifier">e</span><span class="special">.</span><span class="identifier">what</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="special">}</span> - -<span class="comment">// Exception is thrown for query with incorrect return type -</span><span class="keyword">try</span> -<span class="special">{</span> - <span class="identifier">doc</span><span class="special">.</span><span class="identifier">select_nodes</span><span class="special">(</span><span class="string">"123"</span><span class="special">);</span> -<span class="special">}</span> -<span class="keyword">catch</span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_exception</span><span class="special">&</span> <span class="identifier">e</span><span class="special">)</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Select failed: "</span> <span class="special"><<</span> <span class="identifier">e</span><span class="special">.</span><span class="identifier">what</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="manual.xpath.w3c"></a><a class="link" href="xpath.html#manual.xpath.w3c" title="Conformance to W3C specification"> Conformance to W3C specification</a> -</h3></div></div></div> -<p> - Because of the differences in document object models, performance considerations - and implementation complexity, pugixml does not provide a fully conformant - XPath 1.0 implementation. This is the current list of incompatibilities: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Consecutive text nodes sharing the same parent are not merged, i.e. in - <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">></span><span class="identifier">text1</span> - <span class="special"><![</span><span class="identifier">CDATA</span><span class="special">[</span><span class="identifier">data</span><span class="special">]]></span> <span class="identifier">text2</span><span class="special"></</span><span class="identifier">node</span><span class="special">></span></code> node should have one text node child, - but instead has three. - </li> -<li class="listitem"> - Since the document type declaration is not used for parsing, <code class="computeroutput"><span class="identifier">id</span><span class="special">()</span></code> - function always returns an empty node set. - </li> -<li class="listitem"> - Namespace nodes are not supported (affects namespace:: axis). - </li> -<li class="listitem"> - Name tests are performed on QNames in XML document instead of expanded - names; for <code class="computeroutput"><span class="special"><</span><span class="identifier">foo</span> - <span class="identifier">xmlns</span><span class="special">:</span><span class="identifier">ns1</span><span class="special">=</span><span class="char">'uri'</span> <span class="identifier">xmlns</span><span class="special">:</span><span class="identifier">ns2</span><span class="special">=</span><span class="char">'uri'</span><span class="special">><</span><span class="identifier">ns1</span><span class="special">:</span><span class="identifier">child</span><span class="special">/><</span><span class="identifier">ns2</span><span class="special">:</span><span class="identifier">child</span><span class="special">/></</span><span class="identifier">foo</span><span class="special">></span></code>, - query <code class="computeroutput"><span class="identifier">foo</span><span class="special">/</span><span class="identifier">ns1</span><span class="special">:*</span></code> - will return only the first child, not both of them. Compliant XPath implementations - can return both nodes if the user provides appropriate namespace declarations. - </li> -<li class="listitem"> - String functions consider a character to be either a single <code class="computeroutput"><span class="keyword">char</span></code> value or a single <code class="computeroutput"><span class="keyword">wchar_t</span></code> - value, depending on the library configuration; this means that some string - functions are not fully Unicode-aware. This affects <code class="computeroutput"><span class="identifier">substring</span><span class="special">()</span></code>, <code class="computeroutput"><span class="identifier">string</span><span class="special">-</span><span class="identifier">length</span><span class="special">()</span></code> and <code class="computeroutput"><span class="identifier">translate</span><span class="special">()</span></code> functions. - </li> -</ul></div> -</div> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"></td> -<td align="right"><div class="copyright-footer">Copyright © 2014 Arseny Kapoulkine<p> - Distributed under the MIT License - </p> -</div></td> -</tr></table> -<hr> -<table width="100%"><tr> -<td> -<a href="http://pugixml.org/">pugixml 1.6</a> manual | - <a href="../manual.html">Overview</a> | - <a href="install.html">Installation</a> | - Document: - <a href="dom.html">Object model</a> · <a href="loading.html">Loading</a> · <a href="access.html">Accessing</a> · <a href="modify.html">Modifying</a> · <a href="saving.html">Saving</a> | - <b>XPath</b> | - <a href="apiref.html">API Reference</a> | - <a href="toc.html">Table of Contents</a> -</td> -<td width="*" align="right"><div class="spirit-nav"> -<a accesskey="p" href="saving.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../manual.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../manual.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="changes.html"><img src="../images/next.png" alt="Next"></a> -</div></td> -</tr></table> -</body> -</html> diff --git a/docs/quickstart.html b/docs/quickstart.html deleted file mode 100644 index b67765e..0000000 --- a/docs/quickstart.html +++ /dev/null @@ -1,880 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>pugixml 1.6</title> -<link rel="stylesheet" href="pugixml.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="quickstart.html" title="pugixml 1.6"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<div class="article"> -<div class="section"> -<div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="quickstart.main"></a><a class="link" href="quickstart.html#quickstart.main" title="pugixml 1.6 quick start guide"> pugixml 1.6 quick start guide</a> -</h2></div></div></div> -<div class="toc"><dl class="toc"> -<dt><span class="section"><a href="quickstart.html#quickstart.main.introduction"> Introduction</a></span></dt> -<dt><span class="section"><a href="quickstart.html#quickstart.main.install"> Installation</a></span></dt> -<dt><span class="section"><a href="quickstart.html#quickstart.main.dom"> Document object model</a></span></dt> -<dt><span class="section"><a href="quickstart.html#quickstart.main.loading"> Loading document</a></span></dt> -<dt><span class="section"><a href="quickstart.html#quickstart.main.access"> Accessing document data</a></span></dt> -<dt><span class="section"><a href="quickstart.html#quickstart.main.modify"> Modifying document data</a></span></dt> -<dt><span class="section"><a href="quickstart.html#quickstart.main.saving"> Saving document</a></span></dt> -<dt><span class="section"><a href="quickstart.html#quickstart.main.feedback"> Feedback</a></span></dt> -<dt><span class="section"><a href="quickstart.html#quickstart.main.license"> License</a></span></dt> -</dl></div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="quickstart.main.introduction"></a><a class="link" href="quickstart.html#quickstart.main.introduction" title="Introduction"> Introduction</a> -</h3></div></div></div> -<p> - <a href="http://pugixml.org/" target="_top">pugixml</a> is a light-weight C++ XML - processing library. It consists of a DOM-like interface with rich traversal/modification - capabilities, an extremely fast XML parser which constructs the DOM tree - from an XML file/buffer, and an XPath 1.0 implementation for complex data-driven - tree queries. Full Unicode support is also available, with Unicode interface - variants and conversions between different Unicode encodings (which happen - automatically during parsing/saving). The library is extremely portable and - easy to integrate and use. pugixml is developed and maintained since 2006 - and has many users. All code is distributed under the <a class="link" href="quickstart.html#quickstart.main.license" title="License">MIT - license</a>, making it completely free to use in both open-source and - proprietary applications. - </p> -<p> - pugixml enables very fast, convenient and memory-efficient XML document processing. - However, since pugixml has a DOM parser, it can't process XML documents that - do not fit in memory; also the parser is a non-validating one, so if you - need DTD/Schema validation, the library is not for you. - </p> -<p> - This is the quick start guide for pugixml, which purpose is to enable you - to start using the library quickly. Many important library features are either - not described at all or only mentioned briefly; for more complete information - you <a href="manual.html" target="_top">should read the complete manual</a>. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - No documentation is perfect, neither is this one. If you encounter a description - that is unclear, please file an issue as described in <a class="xref" href="quickstart.html#quickstart.main.feedback" title="Feedback"> Feedback</a>. Also if - you can spare the time for a full proof-reading, including spelling and - grammar, that would be great! Please <a class="link" href="quickstart.html#email">send me an e-mail</a>; - as a token of appreciation, your name will be included into the corresponding - section of the manual. - </p></td></tr> -</table></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="quickstart.main.install"></a><a class="link" href="quickstart.html#quickstart.main.install" title="Installation"> Installation</a> -</h3></div></div></div> -<p> - pugixml is distributed in source form. You can download a source distribution - via one of the following links: - </p> -<pre class="programlisting"><a href="https://github.com/zeux/pugixml/releases/download/v1.6/pugixml-1.6.zip" target="_top">https://github.com/zeux/pugixml/releases/download/v1.6/pugixml-1.6.zip</a> -<a href="https://github.com/zeux/pugixml/releases/download/v1.6/pugixml-1.6.tar.gz" target="_top">https://github.com/zeux/pugixml/releases/download/v1.6/pugixml-1.6.tar.gz</a> -</pre> -<p> - The distribution contains library source, documentation (the guide you're - reading now and the manual) and some code examples. After downloading the - distribution, install pugixml by extracting all files from the compressed - archive. The files have different line endings depending on the archive format - - <code class="filename">.zip</code> archive has Windows line endings, <code class="filename">.tar.gz</code> archive has Unix line endings. - Otherwise the files in both archives are identical. - </p> -<p> - The complete pugixml source consists of three files - one source file, <code class="filename">pugixml.cpp</code>, - and two header files, <code class="filename">pugixml.hpp</code> and <code class="filename">pugiconfig.hpp</code>. <code class="filename">pugixml.hpp</code> is the primary - header which you need to include in order to use pugixml classes/functions. - The rest of this guide assumes that <code class="filename">pugixml.hpp</code> is either in the current directory - or in one of include directories of your projects, so that <code class="computeroutput"><span class="preprocessor">#include</span> <span class="string">"pugixml.hpp"</span></code> - can find the header; however you can also use relative path (i.e. <code class="computeroutput"><span class="preprocessor">#include</span> <span class="string">"../libs/pugixml/src/pugixml.hpp"</span></code>) - or include directory-relative path (i.e. <code class="computeroutput"><span class="preprocessor">#include</span> - <span class="special"><</span><span class="identifier">xml</span><span class="special">/</span><span class="identifier">thirdparty</span><span class="special">/</span><span class="identifier">pugixml</span><span class="special">/</span><span class="identifier">src</span><span class="special">/</span><span class="identifier">pugixml</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>). - </p> -<p> - The easiest way to build pugixml is to compile the source file, <code class="filename">pugixml.cpp</code>, - along with the existing library/executable. This process depends on the method - of building your application; for example, if you're using Microsoft Visual - Studio<a href="#ftn.trademarks" class="footnote" name="trademarks"><sup class="footnote">[1]</sup></a>, - Apple Xcode, Code::Blocks or any other IDE, just add <code class="filename">pugixml.cpp</code> to one of - your projects. There are other building methods available, including building - pugixml as a standalone static/shared library; <a href="manual/install.html#manual.install.building" target="_top">read - the manual</a> for further information. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="quickstart.main.dom"></a><a class="link" href="quickstart.html#quickstart.main.dom" title="Document object model"> Document object model</a> -</h3></div></div></div> -<p> - pugixml stores XML data in DOM-like way: the entire XML document (both document - structure and element data) is stored in memory as a tree. The tree can be - loaded from character stream (file, string, C++ I/O stream), then traversed - via special API or XPath expressions. The whole tree is mutable: both node - structure and node/attribute data can be changed at any time. Finally, the - result of document transformations can be saved to a character stream (file, - C++ I/O stream or custom transport). - </p> -<p> - The root of the tree is the document itself, which corresponds to C++ type - <code class="computeroutput"><span class="identifier">xml_document</span></code>. Document has - one or more child nodes, which correspond to C++ type <code class="computeroutput"><span class="identifier">xml_node</span></code>. - Nodes have different types; depending on a type, a node can have a collection - of child nodes, a collection of attributes, which correspond to C++ type - <code class="computeroutput"><span class="identifier">xml_attribute</span></code>, and some additional - data (i.e. name). - </p> -<p> - The most common node types are: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - Document node (<code class="computeroutput"><span class="identifier">node_document</span></code>) - - this is the root of the tree, which consists of several child nodes. - This node corresponds to <code class="computeroutput"><span class="identifier">xml_document</span></code> - class; note that <code class="computeroutput"><span class="identifier">xml_document</span></code> - is a sub-class of <code class="computeroutput"><span class="identifier">xml_node</span></code>, - so the entire node interface is also available. - </li> -<li class="listitem"> - Element/tag node (<code class="computeroutput"><span class="identifier">node_element</span></code>) - - this is the most common type of node, which represents XML elements. - Element nodes have a name, a collection of attributes and a collection - of child nodes (both of which may be empty). The attribute is a simple - name/value pair. - </li> -<li class="listitem"> - Plain character data nodes (<code class="computeroutput"><span class="identifier">node_pcdata</span></code>) - represent plain text in XML. PCDATA nodes have a value, but do not have - name or children/attributes. Note that <span class="bold"><strong>plain character - data is not a part of the element node but instead has its own node</strong></span>; - for example, an element node can have several child PCDATA nodes. - </li> -</ul></div> -<p> - Despite the fact that there are several node types, there are only three - C++ types representing the tree (<code class="computeroutput"><span class="identifier">xml_document</span></code>, - <code class="computeroutput"><span class="identifier">xml_node</span></code>, <code class="computeroutput"><span class="identifier">xml_attribute</span></code>); - some operations on <code class="computeroutput"><span class="identifier">xml_node</span></code> - are only valid for certain node types. They are described below. - </p> -<div class="note"><table border="0" summary="Note"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td> -<th align="left">Note</th> -</tr> -<tr><td align="left" valign="top"><p> - All pugixml classes and functions are located in <code class="computeroutput"><span class="identifier">pugi</span></code> - namespace; you have to either use explicit name qualification (i.e. <code class="computeroutput"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span></code>), or to gain access to relevant - symbols via <code class="computeroutput"><span class="keyword">using</span></code> directive - (i.e. <code class="computeroutput"><span class="keyword">using</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span><span class="special">;</span></code> or <code class="computeroutput"><span class="keyword">using</span> - <span class="keyword">namespace</span> <span class="identifier">pugi</span><span class="special">;</span></code>). - </p></td></tr> -</table></div> -<p> - <code class="computeroutput"><span class="identifier">xml_document</span></code> is the owner - of the entire document structure; destroying the document destroys the whole - tree. The interface of <code class="computeroutput"><span class="identifier">xml_document</span></code> - consists of loading functions, saving functions and the entire interface - of <code class="computeroutput"><span class="identifier">xml_node</span></code>, which allows - for document inspection and/or modification. Note that while <code class="computeroutput"><span class="identifier">xml_document</span></code> is a sub-class of <code class="computeroutput"><span class="identifier">xml_node</span></code>, <code class="computeroutput"><span class="identifier">xml_node</span></code> - is not a polymorphic type; the inheritance is present only to simplify usage. - </p> -<p> - <code class="computeroutput"><span class="identifier">xml_node</span></code> is the handle to - document node; it can point to any node in the document, including document - itself. There is a common interface for nodes of all types. Note that <code class="computeroutput"><span class="identifier">xml_node</span></code> is only a handle to the actual - node, not the node itself - you can have several <code class="computeroutput"><span class="identifier">xml_node</span></code> - handles pointing to the same underlying object. Destroying <code class="computeroutput"><span class="identifier">xml_node</span></code> handle does not destroy the node - and does not remove it from the tree. - </p> -<p> - There is a special value of <code class="computeroutput"><span class="identifier">xml_node</span></code> - type, known as null node or empty node. It does not correspond to any node - in any document, and thus resembles null pointer. However, all operations - are defined on empty nodes; generally the operations don't do anything and - return empty nodes/attributes or empty strings as their result. This is useful - for chaining calls; i.e. you can get the grandparent of a node like so: - <code class="computeroutput"><span class="identifier">node</span><span class="special">.</span><span class="identifier">parent</span><span class="special">().</span><span class="identifier">parent</span><span class="special">()</span></code>; - if a node is a null node or it does not have a parent, the first <code class="computeroutput"><span class="identifier">parent</span><span class="special">()</span></code> - call returns null node; the second <code class="computeroutput"><span class="identifier">parent</span><span class="special">()</span></code> call then also returns null node, so you - don't have to check for errors twice. You can test if a handle is null via - implicit boolean cast: <code class="computeroutput"><span class="keyword">if</span> <span class="special">(</span><span class="identifier">node</span><span class="special">)</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span></code> - or <code class="computeroutput"><span class="keyword">if</span> <span class="special">(!</span><span class="identifier">node</span><span class="special">)</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span></code>. - </p> -<p> - <code class="computeroutput"><span class="identifier">xml_attribute</span></code> is the handle - to an XML attribute; it has the same semantics as <code class="computeroutput"><span class="identifier">xml_node</span></code>, - i.e. there can be several <code class="computeroutput"><span class="identifier">xml_attribute</span></code> - handles pointing to the same underlying object and there is a special null - attribute value, which propagates to function results. - </p> -<p> - There are two choices of interface and internal representation when configuring - pugixml: you can either choose the UTF-8 (also called char) interface or - UTF-16/32 (also called wchar_t) one. The choice is controlled via <code class="computeroutput"><span class="identifier">PUGIXML_WCHAR_MODE</span></code> define; you can set - it via <code class="filename">pugiconfig.hpp</code> or via preprocessor options. All tree functions that - work with strings work with either C-style null terminated strings or STL - strings of the selected character type. <a href="manual/dom.html#manual.dom.unicode" target="_top">Read - the manual</a> for additional information on Unicode interface. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="quickstart.main.loading"></a><a class="link" href="quickstart.html#quickstart.main.loading" title="Loading document"> Loading document</a> -</h3></div></div></div> -<p> - pugixml provides several functions for loading XML data from various places - - files, C++ iostreams, memory buffers. All functions use an extremely fast - non-validating parser. This parser is not fully W3C conformant - it can load - any valid XML document, but does not perform some well-formedness checks. - While considerable effort is made to reject invalid XML documents, some validation - is not performed because of performance reasons. XML data is always converted - to internal character format before parsing. pugixml supports all popular - Unicode encodings (UTF-8, UTF-16 (big and little endian), UTF-32 (big and - little endian); UCS-2 is naturally supported since it's a strict subset of - UTF-16) and handles all encoding conversions automatically. - </p> -<p> - The most common source of XML data is files; pugixml provides a separate - function for loading XML document from file. This function accepts file path - as its first argument, and also two optional arguments, which specify parsing - options and input data encoding, which are described in the manual. - </p> -<p> - This is an example of loading XML document from file (<a href="samples/load_file.cpp" target="_top">samples/load_file.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span> <span class="identifier">doc</span><span class="special">;</span> - -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_file</span><span class="special">(</span><span class="string">"tree.xml"</span><span class="special">);</span> - -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Load result: "</span> <span class="special"><<</span> <span class="identifier">result</span><span class="special">.</span><span class="identifier">description</span><span class="special">()</span> <span class="special"><<</span> <span class="string">", mesh name: "</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"mesh"</span><span class="special">).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"name"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -<p> - <code class="computeroutput"><span class="identifier">load_file</span></code>, as well as other - loading functions, destroys the existing document tree and then tries to - load the new tree from the specified file. The result of the operation is - returned in an <code class="computeroutput"><span class="identifier">xml_parse_result</span></code> - object; this object contains the operation status, and the related information - (i.e. last successfully parsed position in the input file, if parsing fails). - </p> -<p> - Parsing result object can be implicitly converted to <code class="computeroutput"><span class="keyword">bool</span></code>; - if you do not want to handle parsing errors thoroughly, you can just check - the return value of load functions as if it was a <code class="computeroutput"><span class="keyword">bool</span></code>: - <code class="computeroutput"><span class="keyword">if</span> <span class="special">(</span><span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_file</span><span class="special">(</span><span class="string">"file.xml"</span><span class="special">))</span> <span class="special">{</span> <span class="special">...</span> - <span class="special">}</span> <span class="keyword">else</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span></code>. - Otherwise you can use the <code class="computeroutput"><span class="identifier">status</span></code> - member to get parsing status, or the <code class="computeroutput"><span class="identifier">description</span><span class="special">()</span></code> member function to get the status in a - string form. - </p> -<p> - This is an example of handling loading errors (<a href="samples/load_error_handling.cpp" target="_top">samples/load_error_handling.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_document</span> <span class="identifier">doc</span><span class="special">;</span> -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_string</span><span class="special">(</span><span class="identifier">source</span><span class="special">);</span> - -<span class="keyword">if</span> <span class="special">(</span><span class="identifier">result</span><span class="special">)</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"XML ["</span> <span class="special"><<</span> <span class="identifier">source</span> <span class="special"><<</span> <span class="string">"] parsed without errors, attr value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"node"</span><span class="special">).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"attr"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"]\n\n"</span><span class="special">;</span> -<span class="keyword">else</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"XML ["</span> <span class="special"><<</span> <span class="identifier">source</span> <span class="special"><<</span> <span class="string">"] parsed with errors, attr value: ["</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"node"</span><span class="special">).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"attr"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"]\n"</span><span class="special">;</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Error description: "</span> <span class="special"><<</span> <span class="identifier">result</span><span class="special">.</span><span class="identifier">description</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"\n"</span><span class="special">;</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Error offset: "</span> <span class="special"><<</span> <span class="identifier">result</span><span class="special">.</span><span class="identifier">offset</span> <span class="special"><<</span> <span class="string">" (error at [..."</span> <span class="special"><<</span> <span class="special">(</span><span class="identifier">source</span> <span class="special">+</span> <span class="identifier">result</span><span class="special">.</span><span class="identifier">offset</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"]\n\n"</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -<p> - Sometimes XML data should be loaded from some other source than file, i.e. - HTTP URL; also you may want to load XML data from file using non-standard - functions, i.e. to use your virtual file system facilities or to load XML - from gzip-compressed files. These scenarios either require loading document - from memory, in which case you should prepare a contiguous memory block with - all XML data and to pass it to one of buffer loading functions, or loading - document from C++ IOstream, in which case you should provide an object which - implements <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">istream</span></code> or <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">wistream</span></code> - interface. - </p> -<p> - There are different functions for loading document from memory; they treat - the passed buffer as either an immutable one (<code class="computeroutput"><span class="identifier">load_buffer</span></code>), - a mutable buffer which is owned by the caller (<code class="computeroutput"><span class="identifier">load_buffer_inplace</span></code>), - or a mutable buffer which ownership belongs to pugixml (<code class="computeroutput"><span class="identifier">load_buffer_inplace_own</span></code>). - There is also a simple helper function, <code class="computeroutput"><span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">load</span></code>, - for cases when you want to load the XML document from null-terminated character - string. - </p> -<p> - This is an example of loading XML document from memory using one of these - functions (<a href="samples/load_memory.cpp" target="_top">samples/load_memory.cpp</a>); - read the sample code for more examples: - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">const</span> <span class="keyword">char</span> <span class="identifier">source</span><span class="special">[]</span> <span class="special">=</span> <span class="string">"<mesh name='sphere'><bounds>0 0 1 1</bounds></mesh>"</span><span class="special">;</span> -<span class="identifier">size_t</span> <span class="identifier">size</span> <span class="special">=</span> <span class="keyword">sizeof</span><span class="special">(</span><span class="identifier">source</span><span class="special">);</span> -</pre> -<p> - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// You can use load_buffer_inplace to load document from mutable memory block; the block's lifetime must exceed that of document -</span><span class="keyword">char</span><span class="special">*</span> <span class="identifier">buffer</span> <span class="special">=</span> <span class="keyword">new</span> <span class="keyword">char</span><span class="special">[</span><span class="identifier">size</span><span class="special">];</span> -<span class="identifier">memcpy</span><span class="special">(</span><span class="identifier">buffer</span><span class="special">,</span> <span class="identifier">source</span><span class="special">,</span> <span class="identifier">size</span><span class="special">);</span> - -<span class="comment">// The block can be allocated by any method; the block is modified during parsing -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load_buffer_inplace</span><span class="special">(</span><span class="identifier">buffer</span><span class="special">,</span> <span class="identifier">size</span><span class="special">);</span> - -<span class="comment">// You have to destroy the block yourself after the document is no longer used -</span><span class="keyword">delete</span><span class="special">[]</span> <span class="identifier">buffer</span><span class="special">;</span> -</pre> -<p> - </p> -<p> - This is a simple example of loading XML document from file using streams - (<a href="samples/load_stream.cpp" target="_top">samples/load_stream.cpp</a>); read - the sample code for more complex examples involving wide streams and locales: - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">ifstream</span> <span class="identifier">stream</span><span class="special">(</span><span class="string">"weekly-utf-8.xml"</span><span class="special">);</span> -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_parse_result</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">load</span><span class="special">(</span><span class="identifier">stream</span><span class="special">);</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="quickstart.main.access"></a><a class="link" href="quickstart.html#quickstart.main.access" title="Accessing document data"> Accessing document data</a> -</h3></div></div></div> -<p> - pugixml features an extensive interface for getting various types of data - from the document and for traversing the document. You can use various accessors - to get node/attribute data, you can traverse the child node/attribute lists - via accessors or iterators, you can do depth-first traversals with <code class="computeroutput"><span class="identifier">xml_tree_walker</span></code> objects, and you can use - XPath for complex data-driven queries. - </p> -<p> - You can get node or attribute name via <code class="computeroutput"><span class="identifier">name</span><span class="special">()</span></code> accessor, and value via <code class="computeroutput"><span class="identifier">value</span><span class="special">()</span></code> accessor. Note that both functions never - return null pointers - they either return a string with the relevant content, - or an empty string if name/value is absent or if the handle is null. Also - there are two notable things for reading values: - </p> -<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> -<li class="listitem"> - It is common to store data as text contents of some node - i.e. <code class="computeroutput"><span class="special"><</span><span class="identifier">node</span><span class="special">><</span><span class="identifier">description</span><span class="special">></span><span class="identifier">This</span> - <span class="identifier">is</span> <span class="identifier">a</span> - <span class="identifier">node</span><span class="special"></</span><span class="identifier">description</span><span class="special">></</span><span class="identifier">node</span><span class="special">></span></code>. - In this case, <code class="computeroutput"><span class="special"><</span><span class="identifier">description</span><span class="special">></span></code> node does not have a value, but instead - has a child of type <code class="computeroutput"><span class="identifier">node_pcdata</span></code> - with value <code class="computeroutput"><span class="string">"This is a node"</span></code>. - pugixml provides <code class="computeroutput"><span class="identifier">child_value</span><span class="special">()</span></code> and <code class="computeroutput"><span class="identifier">text</span><span class="special">()</span></code> helper functions to parse such data. - </li> -<li class="listitem"> - In many cases attribute values have types that are not strings - i.e. - an attribute may always contain values that should be treated as integers, - despite the fact that they are represented as strings in XML. pugixml - provides several accessors that convert attribute value to some other - type. - </li> -</ul></div> -<p> - This is an example of using these functions (<a href="samples/traverse_base.cpp" target="_top">samples/traverse_base.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">);</span> <span class="identifier">tool</span><span class="special">;</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">))</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool "</span> <span class="special"><<</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">();</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">": AllowRemote "</span> <span class="special"><<</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"AllowRemote"</span><span class="special">).</span><span class="identifier">as_bool</span><span class="special">();</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", Timeout "</span> <span class="special"><<</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Timeout"</span><span class="special">).</span><span class="identifier">as_int</span><span class="special">();</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", Description '"</span> <span class="special"><<</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">child_value</span><span class="special">(</span><span class="string">"Description"</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"'\n"</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -<p> - Since a lot of document traversal consists of finding the node/attribute - with the correct name, there are special functions for that purpose. For - example, <code class="computeroutput"><span class="identifier">child</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">)</span></code> - returns the first node which has the name <code class="computeroutput"><span class="string">"Tool"</span></code>, - or null handle if there is no such node. This is an example of using such - functions (<a href="samples/traverse_base.cpp" target="_top">samples/traverse_base.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool for *.dae generation: "</span> <span class="special"><<</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">find_child_by_attribute</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">,</span> <span class="string">"OutputFileMasks"</span><span class="special">,</span> <span class="string">"*.dae"</span><span class="special">).</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"\n"</span><span class="special">;</span> - -<span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">);</span> <span class="identifier">tool</span><span class="special">;</span> <span class="identifier">tool</span> <span class="special">=</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">next_sibling</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">))</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool "</span> <span class="special"><<</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"\n"</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -<p> - Child node lists and attribute lists are simply double-linked lists; while - you can use <code class="computeroutput"><span class="identifier">previous_sibling</span></code>/<code class="computeroutput"><span class="identifier">next_sibling</span></code> and other such functions for - iteration, pugixml additionally provides node and attribute iterators, so - that you can treat nodes as containers of other nodes or attributes. All - iterators are bidirectional and support all usual iterator operations. The - iterators are invalidated if the node/attribute objects they're pointing - to are removed from the tree; adding nodes/attributes does not invalidate - any iterators. - </p> -<p> - Here is an example of using iterators for document traversal (<a href="samples/traverse_iter.cpp" target="_top">samples/traverse_iter.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node_iterator</span> <span class="identifier">it</span> <span class="special">=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span> <span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span> <span class="special">++</span><span class="identifier">it</span><span class="special">)</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool:"</span><span class="special">;</span> - - <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_attribute_iterator</span> <span class="identifier">ait</span> <span class="special">=</span> <span class="identifier">it</span><span class="special">-></span><span class="identifier">attributes_begin</span><span class="special">();</span> <span class="identifier">ait</span> <span class="special">!=</span> <span class="identifier">it</span><span class="special">-></span><span class="identifier">attributes_end</span><span class="special">();</span> <span class="special">++</span><span class="identifier">ait</span><span class="special">)</span> - <span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">" "</span> <span class="special"><<</span> <span class="identifier">ait</span><span class="special">-></span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"="</span> <span class="special"><<</span> <span class="identifier">ait</span><span class="special">-></span><span class="identifier">value</span><span class="special">();</span> - <span class="special">}</span> - - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -<p> - If your C++ compiler supports range-based for-loop (this is a C++11 feature, - at the time of writing it's supported by Microsoft Visual Studio 11 Beta, - GCC 4.6 and Clang 3.0), you can use it to enumerate nodes/attributes. Additional - helpers are provided to support this; note that they are also compatible - with <a href="http://www.boost.org/libs/foreach/" target="_top">Boost Foreach</a>, - and possibly other pre-C++11 foreach facilities. - </p> -<p> - Here is an example of using C++11 range-based for loop for document traversal - (<a href="samples/traverse_rangefor.cpp" target="_top">samples/traverse_rangefor.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">tool</span><span class="special">:</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">children</span><span class="special">(</span><span class="string">"Tool"</span><span class="special">))</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tool:"</span><span class="special">;</span> - - <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_attribute</span> <span class="identifier">attr</span><span class="special">:</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">attributes</span><span class="special">())</span> - <span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">" "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"="</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">();</span> - <span class="special">}</span> - - <span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">child</span><span class="special">:</span> <span class="identifier">tool</span><span class="special">.</span><span class="identifier">children</span><span class="special">())</span> - <span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", child "</span> <span class="special"><<</span> <span class="identifier">child</span><span class="special">.</span><span class="identifier">name</span><span class="special">();</span> - <span class="special">}</span> - - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -<span class="special">}</span> -</pre> -<p> - </p> -<p> - The methods described above allow traversal of immediate children of some - node; if you want to do a deep tree traversal, you'll have to do it via a - recursive function or some equivalent method. However, pugixml provides a - helper for depth-first traversal of a subtree. In order to use it, you have - to implement <code class="computeroutput"><span class="identifier">xml_tree_walker</span></code> - interface and to call <code class="computeroutput"><span class="identifier">traverse</span></code> - function. - </p> -<p> - This is an example of traversing tree hierarchy with xml_tree_walker (<a href="samples/traverse_walker.cpp" target="_top">samples/traverse_walker.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">simple_walker</span><span class="special">:</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_tree_walker</span> -<span class="special">{</span> - <span class="keyword">virtual</span> <span class="keyword">bool</span> <span class="identifier">for_each</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">node</span><span class="special">)</span> - <span class="special">{</span> - <span class="keyword">for</span> <span class="special">(</span><span class="keyword">int</span> <span class="identifier">i</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> <span class="identifier">i</span> <span class="special"><</span> <span class="identifier">depth</span><span class="special">();</span> <span class="special">++</span><span class="identifier">i</span><span class="special">)</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">" "</span><span class="special">;</span> <span class="comment">// indentation -</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">node_types</span><span class="special">[</span><span class="identifier">node</span><span class="special">.</span><span class="identifier">type</span><span class="special">()]</span> <span class="special"><<</span> <span class="string">": name='"</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"', value='"</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"'\n"</span><span class="special">;</span> - - <span class="keyword">return</span> <span class="keyword">true</span><span class="special">;</span> <span class="comment">// continue traversal -</span> <span class="special">}</span> -<span class="special">};</span> -</pre> -<p> - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">simple_walker</span> <span class="identifier">walker</span><span class="special">;</span> -<span class="identifier">doc</span><span class="special">.</span><span class="identifier">traverse</span><span class="special">(</span><span class="identifier">walker</span><span class="special">);</span> -</pre> -<p> - </p> -<p> - Finally, for complex queries often a higher-level DSL is needed. pugixml - provides an implementation of XPath 1.0 language for such queries. The complete - description of XPath usage can be found in the manual, but here are some - examples: - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node_set</span> <span class="identifier">tools</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">select_nodes</span><span class="special">(</span><span class="string">"/Profile/Tools/Tool[@AllowRemote='true' and @DeriveCaptionFrom='lastparam']"</span><span class="special">);</span> - -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Tools:\n"</span><span class="special">;</span> - -<span class="keyword">for</span> <span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node_set</span><span class="special">::</span><span class="identifier">const_iterator</span> <span class="identifier">it</span> <span class="special">=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span> <span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">tools</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span> <span class="special">++</span><span class="identifier">it</span><span class="special">)</span> -<span class="special">{</span> - <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node</span> <span class="identifier">node</span> <span class="special">=</span> <span class="special">*</span><span class="identifier">it</span><span class="special">;</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">node</span><span class="special">().</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"\n"</span><span class="special">;</span> -<span class="special">}</span> - -<span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xpath_node</span> <span class="identifier">build_tool</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">select_node</span><span class="special">(</span><span class="string">"//Tool[contains(Description, 'build system')]"</span><span class="special">);</span> - -<span class="keyword">if</span> <span class="special">(</span><span class="identifier">build_tool</span><span class="special">)</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Build tool: "</span> <span class="special"><<</span> <span class="identifier">build_tool</span><span class="special">.</span><span class="identifier">node</span><span class="special">().</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"Filename"</span><span class="special">).</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"\n"</span><span class="special">;</span> -</pre> -<p> - </p> -<div class="caution"><table border="0" summary="Caution"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="images/caution.png"></td> -<th align="left">Caution</th> -</tr> -<tr><td align="left" valign="top"><p> - XPath functions throw <code class="computeroutput"><span class="identifier">xpath_exception</span></code> - objects on error; the sample above does not catch these exceptions. - </p></td></tr> -</table></div> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="quickstart.main.modify"></a><a class="link" href="quickstart.html#quickstart.main.modify" title="Modifying document data"> Modifying document data</a> -</h3></div></div></div> -<p> - The document in pugixml is fully mutable: you can completely change the document - structure and modify the data of nodes/attributes. All functions take care - of memory management and structural integrity themselves, so they always - result in structurally valid tree - however, it is possible to create an - invalid XML tree (for example, by adding two attributes with the same name - or by setting attribute/node name to empty/invalid string). Tree modification - is optimized for performance and for memory consumption, so if you have enough - memory you can create documents from scratch with pugixml and later save - them to file/stream instead of relying on error-prone manual text writing - and without too much overhead. - </p> -<p> - All member functions that change node/attribute data or structure are non-constant - and thus can not be called on constant handles. However, you can easily convert - constant handle to non-constant one by simple assignment: <code class="computeroutput"><span class="keyword">void</span> - <span class="identifier">foo</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span><span class="special">&</span> <span class="identifier">n</span><span class="special">)</span> <span class="special">{</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">nc</span> <span class="special">=</span> <span class="identifier">n</span><span class="special">;</span> <span class="special">}</span></code>, so const-correctness - here mainly provides additional documentation. - </p> -<p> - As discussed before, nodes can have name and value, both of which are strings. - Depending on node type, name or value may be absent. You can use <code class="computeroutput"><span class="identifier">set_name</span></code> and <code class="computeroutput"><span class="identifier">set_value</span></code> - member functions to set them. Similar functions are available for attributes; - however, the <code class="computeroutput"><span class="identifier">set_value</span></code> function - is overloaded for some other types except strings, like floating-point numbers. - Also, attribute value can be set using an assignment operator. This is an - example of setting node/attribute name and value (<a href="samples/modify_base.cpp" target="_top">samples/modify_base.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"node"</span><span class="special">);</span> - -<span class="comment">// change node name -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">set_name</span><span class="special">(</span><span class="string">"notnode"</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", new node name: "</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// change comment text -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">last_child</span><span class="special">().</span><span class="identifier">set_value</span><span class="special">(</span><span class="string">"useless comment"</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", new comment text: "</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">last_child</span><span class="special">().</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// we can't change value of the element or name of the comment -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">set_value</span><span class="special">(</span><span class="string">"1"</span><span class="special">)</span> <span class="special"><<</span> <span class="string">", "</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">last_child</span><span class="special">().</span><span class="identifier">set_name</span><span class="special">(</span><span class="string">"2"</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -<p> - -</p> -<pre class="programlisting"><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_attribute</span> <span class="identifier">attr</span> <span class="special">=</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"id"</span><span class="special">);</span> - -<span class="comment">// change attribute name/value -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">set_name</span><span class="special">(</span><span class="string">"key"</span><span class="special">)</span> <span class="special"><<</span> <span class="string">", "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">set_value</span><span class="special">(</span><span class="string">"345"</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">", new attribute: "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"="</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// we can use numbers or booleans -</span><span class="identifier">attr</span><span class="special">.</span><span class="identifier">set_value</span><span class="special">(</span><span class="number">1.234</span><span class="special">);</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"new attribute value: "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> - -<span class="comment">// we can also use assignment operators for more concise code -</span><span class="identifier">attr</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span> -<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"final attribute value: "</span> <span class="special"><<</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -<p> - Nodes and attributes do not exist without a document tree, so you can't create - them without adding them to some document. A node or attribute can be created - at the end of node/attribute list or before/after some other node. All insertion - functions return the handle to newly created object on success, and null - handle on failure. Even if the operation fails (for example, if you're trying - to add a child node to PCDATA node), the document remains in consistent state, - but the requested node/attribute is not added. - </p> -<div class="caution"><table border="0" summary="Caution"> -<tr> -<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="images/caution.png"></td> -<th align="left">Caution</th> -</tr> -<tr><td align="left" valign="top"><p> - attribute() and child() functions do not add attributes or nodes to the - tree, so code like <code class="computeroutput"><span class="identifier">node</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"id"</span><span class="special">)</span> <span class="special">=</span> <span class="number">123</span><span class="special">;</span></code> will not do anything if <code class="computeroutput"><span class="identifier">node</span></code> does not have an attribute with - name <code class="computeroutput"><span class="string">"id"</span></code>. Make sure - you're operating with existing attributes/nodes by adding them if necessary. - </p></td></tr> -</table></div> -<p> - This is an example of adding new attributes/nodes to the document (<a href="samples/modify_add.cpp" target="_top">samples/modify_add.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// add node with some name -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">append_child</span><span class="special">(</span><span class="string">"node"</span><span class="special">);</span> - -<span class="comment">// add description node with text child -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">descr</span> <span class="special">=</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">append_child</span><span class="special">(</span><span class="string">"description"</span><span class="special">);</span> -<span class="identifier">descr</span><span class="special">.</span><span class="identifier">append_child</span><span class="special">(</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">node_pcdata</span><span class="special">).</span><span class="identifier">set_value</span><span class="special">(</span><span class="string">"Simple node"</span><span class="special">);</span> - -<span class="comment">// add param node before the description -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">param</span> <span class="special">=</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">insert_child_before</span><span class="special">(</span><span class="string">"param"</span><span class="special">,</span> <span class="identifier">descr</span><span class="special">);</span> - -<span class="comment">// add attributes to param node -</span><span class="identifier">param</span><span class="special">.</span><span class="identifier">append_attribute</span><span class="special">(</span><span class="string">"name"</span><span class="special">)</span> <span class="special">=</span> <span class="string">"version"</span><span class="special">;</span> -<span class="identifier">param</span><span class="special">.</span><span class="identifier">append_attribute</span><span class="special">(</span><span class="string">"value"</span><span class="special">)</span> <span class="special">=</span> <span class="number">1.1</span><span class="special">;</span> -<span class="identifier">param</span><span class="special">.</span><span class="identifier">insert_attribute_after</span><span class="special">(</span><span class="string">"type"</span><span class="special">,</span> <span class="identifier">param</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"name"</span><span class="special">))</span> <span class="special">=</span> <span class="string">"float"</span><span class="special">;</span> -</pre> -<p> - </p> -<p> - If you do not want your document to contain some node or attribute, you can - remove it with <code class="computeroutput"><span class="identifier">remove_attribute</span></code> - and <code class="computeroutput"><span class="identifier">remove_child</span></code> functions. - Removing the attribute or node invalidates all handles to the same underlying - object, and also invalidates all iterators pointing to the same object. Removing - node also invalidates all past-the-end iterators to its attribute or child - node list. Be careful to ensure that all such handles and iterators either - do not exist or are not used after the attribute/node is removed. - </p> -<p> - This is an example of removing attributes/nodes from the document (<a href="samples/modify_remove.cpp" target="_top">samples/modify_remove.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// remove description node with the whole subtree -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">node</span> <span class="special">=</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"node"</span><span class="special">);</span> -<span class="identifier">node</span><span class="special">.</span><span class="identifier">remove_child</span><span class="special">(</span><span class="string">"description"</span><span class="special">);</span> - -<span class="comment">// remove id attribute -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_node</span> <span class="identifier">param</span> <span class="special">=</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">child</span><span class="special">(</span><span class="string">"param"</span><span class="special">);</span> -<span class="identifier">param</span><span class="special">.</span><span class="identifier">remove_attribute</span><span class="special">(</span><span class="string">"value"</span><span class="special">);</span> - -<span class="comment">// we can also remove nodes/attributes by handles -</span><span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_attribute</span> <span class="identifier">id</span> <span class="special">=</span> <span class="identifier">param</span><span class="special">.</span><span class="identifier">attribute</span><span class="special">(</span><span class="string">"name"</span><span class="special">);</span> -<span class="identifier">param</span><span class="special">.</span><span class="identifier">remove_attribute</span><span class="special">(</span><span class="identifier">id</span><span class="special">);</span> -</pre> -<p> - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="quickstart.main.saving"></a><a class="link" href="quickstart.html#quickstart.main.saving" title="Saving document"> Saving document</a> -</h3></div></div></div> -<p> - Often after creating a new document or loading the existing one and processing - it, it is necessary to save the result back to file. Also it is occasionally - useful to output the whole document or a subtree to some stream; use cases - include debug printing, serialization via network or other text-oriented - medium, etc. pugixml provides several functions to output any subtree of - the document to a file, stream or another generic transport interface; these - functions allow to customize the output format, and also perform necessary - encoding conversions. - </p> -<p> - Before writing to the destination the node/attribute data is properly formatted - according to the node type; all special XML symbols, such as < and &, - are properly escaped. In order to guard against forgotten node/attribute - names, empty node/attribute names are printed as <code class="computeroutput"><span class="string">":anonymous"</span></code>. - For well-formed output, make sure all node and attribute names are set to - meaningful values. - </p> -<p> - If you want to save the whole document to a file, you can use the <code class="computeroutput"><span class="identifier">save_file</span></code> function, which returns <code class="computeroutput"><span class="keyword">true</span></code> on success. This is a simple example - of saving XML document to file (<a href="samples/save_file.cpp" target="_top">samples/save_file.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// save document to file -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Saving result: "</span> <span class="special"><<</span> <span class="identifier">doc</span><span class="special">.</span><span class="identifier">save_file</span><span class="special">(</span><span class="string">"save_file_output.xml"</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> -</pre> -<p> - </p> -<p> - To enhance interoperability pugixml provides functions for saving document - to any object which implements C++ <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span></code> - interface. This allows you to save documents to any standard C++ stream (i.e. - file stream) or any third-party compliant implementation (i.e. Boost Iostreams). - Most notably, this allows for easy debug output, since you can use <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span></code> - stream as saving target. There are two functions, one works with narrow character - streams, another handles wide character ones. - </p> -<p> - This is a simple example of saving XML document to standard output (<a href="samples/save_stream.cpp" target="_top">samples/save_stream.cpp</a>): - </p> -<p> - -</p> -<pre class="programlisting"><span class="comment">// save document to standard output -</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Document:\n"</span><span class="special">;</span> -<span class="identifier">doc</span><span class="special">.</span><span class="identifier">save</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span><span class="special">);</span> -</pre> -<p> - </p> -<p> - All of the above saving functions are implemented in terms of writer interface. - This is a simple interface with a single function, which is called several - times during output process with chunks of document data as input. In order - to output the document via some custom transport, for example sockets, you - should create an object which implements <code class="computeroutput"><span class="identifier">xml_writer_file</span></code> - interface and pass it to <code class="computeroutput"><span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">save</span></code> - function. - </p> -<p> - This is a simple example of custom writer for saving document data to STL - string (<a href="samples/save_custom_writer.cpp" target="_top">samples/save_custom_writer.cpp</a>); - read the sample code for more complex examples: - </p> -<p> - -</p> -<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">xml_string_writer</span><span class="special">:</span> <span class="identifier">pugi</span><span class="special">::</span><span class="identifier">xml_writer</span> -<span class="special">{</span> - <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">result</span><span class="special">;</span> - - <span class="keyword">virtual</span> <span class="keyword">void</span> <span class="identifier">write</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">void</span><span class="special">*</span> <span class="identifier">data</span><span class="special">,</span> <span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">)</span> - <span class="special">{</span> - <span class="identifier">result</span><span class="special">.</span><span class="identifier">append</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special"><</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*>(</span><span class="identifier">data</span><span class="special">),</span> <span class="identifier">size</span><span class="special">);</span> - <span class="special">}</span> -<span class="special">};</span> -</pre> -<p> - </p> -<p> - While the previously described functions save the whole document to the destination, - it is easy to save a single subtree. Instead of calling <code class="computeroutput"><span class="identifier">xml_document</span><span class="special">::</span><span class="identifier">save</span></code>, - just call <code class="computeroutput"><span class="identifier">xml_node</span><span class="special">::</span><span class="identifier">print</span></code> function on the target node. You - can save node contents to C++ IOstream object or custom writer in this way. - Saving a subtree slightly differs from saving the whole document; <a href="manual/saving.html#manual.saving.subtree" target="_top">read the manual</a> for - more information. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="quickstart.main.feedback"></a><a class="link" href="quickstart.html#quickstart.main.feedback" title="Feedback"> Feedback</a> -</h3></div></div></div> -<p> - If you believe you've found a bug in pugixml, please file an issue via <a href="https://github.com/zeux/pugixml/issues/new" target="_top">issue submission form</a>. - Be sure to include the relevant information so that the bug can be reproduced: - the version of pugixml, compiler version and target architecture, the code - that uses pugixml and exhibits the bug, etc. Feature requests and contributions - can be filed as issues, too. - </p> -<a name="email"></a><p> - If filing an issue is not possible due to privacy or other concerns, you - can contact pugixml author by e-mail directly: <a href="mailto:arseny.kapoulkine@gmail.com" target="_top">arseny.kapoulkine@gmail.com</a>. - </p> -</div> -<div class="section"> -<div class="titlepage"><div><div><h3 class="title"> -<a name="quickstart.main.license"></a><a class="link" href="quickstart.html#quickstart.main.license" title="License"> License</a> -</h3></div></div></div> -<p> - The pugixml library is distributed under the MIT license: - </p> -<div class="blockquote"><blockquote class="blockquote"> -<p> - Copyright (c) 2006-2014 Arseny Kapoulkine - </p> -<p> - Permission is hereby granted, free of charge, to any person obtaining a - copy of this software and associated documentation files (the "Software"), - to deal in the Software without restriction, including without limitation - the rights to use, copy, modify, merge, publish, distribute, sublicense, - and/or sell copies of the Software, and to permit persons to whom the Software - is furnished to do so, subject to the following conditions: - </p> -<p> - The above copyright notice and this permission notice shall be included - in all copies or substantial portions of the Software. - </p> -<p> - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - IN THE SOFTWARE. - </p> -</blockquote></div> -<p> - This means that you can freely use pugixml in your applications, both open-source - and proprietary. If you use pugixml in a product, it is sufficient to add - an acknowledgment like this to the product distribution: - </p> -<div class="blockquote"><blockquote class="blockquote"><p> - This software is based on pugixml library (http://pugixml.org).<br> -pugixml - is Copyright (C) 2006-2014 Arseny Kapoulkine. - </p></blockquote></div> -</div> -</div> -<div class="footnotes"> -<br><hr style="width:100; text-align:left;margin-left: 0"> -<div id="ftn.trademarks" class="footnote"><p><a href="#trademarks" class="para"><sup class="para">[1] </sup></a>All trademarks used are properties of their respective owners.</p></div> -</div> -</div> -<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> -<td align="left"><p><small>Last revised: March 20, 2015 at 07:16:25 GMT</small></p></td> -<td align="right"><div class="copyright-footer"></div></td> -</tr></table> -</body> -</html> |