summaryrefslogtreecommitdiff
path: root/docs/manual/modify.html
diff options
context:
space:
mode:
authorArseny Kapoulkine <arseny.kapoulkine@gmail.com>2014-11-20 23:47:00 -0800
committerArseny Kapoulkine <arseny.kapoulkine@gmail.com>2014-11-20 23:47:16 -0800
commitdb8df4a5665cfb24c1c18be438d10b2e310a234e (patch)
tree16d251ba91d88fd99343e9628348f912e0170f1a /docs/manual/modify.html
parentcca23e636354dc73429a19e14e32cc9a5e632735 (diff)
parent125aa55061ccde4ae7351a9a6c7270a15c9e0204 (diff)
Merge branch 'master' into compact
Diffstat (limited to 'docs/manual/modify.html')
-rw-r--r--docs/manual/modify.html252
1 files changed, 153 insertions, 99 deletions
diff --git a/docs/manual/modify.html b/docs/manual/modify.html
index 05b0fbe..5e44d90 100644
--- a/docs/manual/modify.html
+++ b/docs/manual/modify.html
@@ -4,15 +4,15 @@
<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 1.4">
-<link rel="up" href="../manual.html" title="pugixml 1.4">
+<link rel="home" href="../manual.html" title="pugixml 1.5">
+<link rel="up" href="../manual.html" title="pugixml 1.5">
<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 1.4</a> manual |
+<a href="http://pugixml.org/">pugixml 1.5</a> manual |
<a href="../manual.html">Overview</a> |
<a href="install.html">Installation</a> |
Document:
@@ -28,16 +28,17 @@
<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>
+<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.fragments">Assembling document from fragments</a></span></dt>
+<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
@@ -61,12 +62,11 @@
</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>
+<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>
-<p>
- <a name="xml_node::set_name"></a><a name="xml_node::set_value"></a>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>
+<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>,
@@ -98,31 +98,31 @@
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">&lt;&lt;</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="comment">// change node name
+</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</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">&lt;&lt;</span> <span class="string">", new node name: "</span> <span class="special">&lt;&lt;</span> <span class="identifier">node</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special">&lt;&lt;</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">&lt;&lt;</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="comment">// change comment text
+</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</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">&lt;&lt;</span> <span class="string">", new comment text: "</span> <span class="special">&lt;&lt;</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">&lt;&lt;</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">&lt;&lt;</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">&lt;&lt;</span> <span class="string">", "</span> <span class="special">&lt;&lt;</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">&lt;&lt;</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">&lt;&lt;</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">&lt;&lt;</span> <span class="string">", "</span> <span class="special">&lt;&lt;</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">&lt;&lt;</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>
+<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>
-<p>
- <a name="xml_attribute::set_name"></a><a name="xml_attribute::set_value"></a>All
- attributes have name and value, both of which are strings (value may be empty).
- You can set them with the following functions:
+<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>
@@ -177,8 +177,8 @@
including string conversions.
</p></td></tr>
</table></div>
-<p>
- <a name="xml_attribute::assign"></a>For convenience, all <code class="computeroutput"><span class="identifier">set_value</span></code>
+<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">&amp;</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>
@@ -199,19 +199,20 @@
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">&lt;&lt;</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">&lt;&lt;</span> <span class="string">", "</span> <span class="special">&lt;&lt;</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="comment">// change attribute name/value
+</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</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">&lt;&lt;</span> <span class="string">", "</span> <span class="special">&lt;&lt;</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">&lt;&lt;</span> <span class="string">", new attribute: "</span> <span class="special">&lt;&lt;</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span> <span class="special">&lt;&lt;</span> <span class="string">"="</span> <span class="special">&lt;&lt;</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special">&lt;&lt;</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="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">&lt;&lt;</span> <span class="string">"new attribute value: "</span> <span class="special">&lt;&lt;</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special">&lt;&lt;</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="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">&lt;&lt;</span> <span class="string">"final attribute value: "</span> <span class="special">&lt;&lt;</span> <span class="identifier">attr</span><span class="special">.</span><span class="identifier">value</span><span class="special">()</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
</pre>
<p>
@@ -219,11 +220,10 @@
</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>
+<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>
-<p>
- <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>Nodes
- and attributes do not exist without a document tree, so you can't create
+<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>
@@ -317,19 +317,20 @@
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>
+<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="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 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="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>
@@ -338,11 +339,10 @@
</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>
+<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>
-<p>
- <a name="xml_node::remove_attribute"></a><a name="xml_node::remove_child"></a>If
- you do not want your document to contain some node or attribute, you can
+<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">&amp;</span> <span class="identifier">a</span><span class="special">);</span>
@@ -394,17 +394,18 @@
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>
+<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="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="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>
@@ -412,7 +413,7 @@
</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>
+<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>,
@@ -421,8 +422,8 @@
documentation for accessing document data</a>; this section describes
the modification interface of <code class="computeroutput"><span class="identifier">xml_text</span></code>.
</p>
-<p>
- <a name="xml_text::set"></a>Once you have an <code class="computeroutput"><span class="identifier">xml_text</span></code>
+<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>
@@ -439,9 +440,9 @@
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>
-<p>
- <a name="xml_text::set_value"></a>In addition to a string function, several
- functions are provided for handling text with numbers and booleans as contents:
+<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>
@@ -457,8 +458,8 @@
functions. You can <a class="link" href="modify.html#xml_attribute::set_value">refer to documentation
for the attribute functions</a> for details.
</p>
-<p>
- <a name="xml_text::assign"></a>For convenience, all <code class="computeroutput"><span class="identifier">set</span></code>
+<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">&amp;</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>
@@ -480,29 +481,30 @@
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>
+<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>
+<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>
+<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>
-<p>
- <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>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:
+<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">&amp;</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">&amp;</span> <span class="identifier">proto</span><span class="special">);</span>
@@ -559,6 +561,7 @@
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">&amp;</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>
@@ -570,23 +573,23 @@
<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="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">// 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="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="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>
@@ -603,8 +606,8 @@
<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">&amp;</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 &lt;?include?&gt;</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 &lt;?include?&gt;
+</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>
@@ -613,13 +616,64 @@
</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>
+<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">&amp;</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">&amp;</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">&amp;</span> <span class="identifier">moved</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&amp;</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">&amp;</span> <span class="identifier">moved</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">xml_node</span><span class="special">&amp;</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>
- <a name="xml_node::append_buffer"></a>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:
+ 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
@@ -668,10 +722,10 @@
- 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>
-<p>
- <a name="status_append_invalid_root"></a>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>
+<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>
@@ -687,7 +741,7 @@
<hr>
<table width="100%"><tr>
<td>
-<a href="http://pugixml.org/">pugixml 1.4</a> manual |
+<a href="http://pugixml.org/">pugixml 1.5</a> manual |
<a href="../manual.html">Overview</a> |
<a href="install.html">Installation</a> |
Document: