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-rw-r--r--docs/manual/xpath.html44
1 files changed, 19 insertions, 25 deletions
diff --git a/docs/manual/xpath.html b/docs/manual/xpath.html
index 513bb90..731a969 100644
--- a/docs/manual/xpath.html
+++ b/docs/manual/xpath.html
@@ -54,9 +54,6 @@
at tizag.com</a>, and <a href="http://www.w3.org/TR/xpath/" target="_top">the XPath
1.0 specification</a>.
</p>
-<p>
- $$
- </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>
@@ -123,11 +120,9 @@
You can also create XPath nodes with one of tree 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.
+ belong to the attribute list of the node). However, usually you 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.
@@ -314,21 +309,20 @@
<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><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">&amp;</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">&amp;</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">&amp;</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">&amp;</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+<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">xml_node</span><span class="special">&amp;</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">xml_node</span><span class="special">&amp;</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">xml_node</span><span class="special">&amp;</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">xml_node</span><span class="special">&amp;</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
</pre>
<p>
- $$ exception, evaluate_string nostl All functions take the context node as
- an argument, compute the expression and return the result, converted to the
- requested type. By 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> throws
- an <code class="computeroutput"><span class="identifier">xpath_exception</span></code> if the
- return type is not node set.
+ All functions take the context node as an argument, compute the expression
+ and return the result, converted to the requested type. By 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>
+ throws an <code class="computeroutput"><span class="identifier">xpath_exception</span></code>
+ if the return type is not node set.
</p>
<div class="note"><table border="0" summary="Note">
<tr>
@@ -376,7 +370,7 @@
<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>
<a name="xpath_exception"></a><a name="xpath_exception::what"></a><p>
- $$ As of version 0.9, all XPath errors result in thrown exceptions. The errors
+ As of version 0.9, all XPath errors result in thrown exceptions. The errors
can arise during expression compilation or node set evaluation. In both cases,
an <code class="computeroutput"><span class="identifier">xpath_exception</span></code> object
is thrown. This is an exception object that implements <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">exception</span></code>
@@ -385,8 +379,8 @@
<pre class="programlisting"><span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">xpath_exception</span><span class="special">::</span><span class="identifier">what</span><span class="special">()</span> <span class="keyword">const</span> <span class="keyword">throw</span><span class="special">();</span>
</pre>
<p>
- $$ This function returns the error message. Currently it is impossible to
- get the exact place where query compilation failed. This functionality, along
+ This function returns the error message. Currently it is impossible to get
+ the exact place where query compilation failed. This functionality, along
with optional error handling without exceptions, will be available in version
1.0.
</p>
@@ -470,7 +464,7 @@
</li>
</ul></div>
<p>
- $$ Some of these incompatibilities will be fixed in version 1.0.
+ Some of these incompatibilities will be fixed in version 1.0.
</p>
</div>
</div>