libxml2-sax2.html

xml开源解析代码.版本为libxml2-2.6.29,可支持GB3212.网络消息发送XML时很有用.

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    <div class="refsect1" lang="en">
      <h2>Description</h2>
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    <div class="refsect1" lang="en">
      <h2>Details</h2>
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        <div class="refsect2" lang="en"><h3><a name="docbDefaultSAXHandlerInit"/>docbDefaultSAXHandlerInit ()</h3><pre class="programlisting">void	docbDefaultSAXHandlerInit	(void)<br/>
</pre><p>Initialize the default SAX handler</p>
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        <div class="refsect2" lang="en"><h3><a name="htmlDefaultSAXHandlerInit"/>htmlDefaultSAXHandlerInit ()</h3><pre class="programlisting">void	htmlDefaultSAXHandlerInit	(void)<br/>
</pre><p>Initialize the default SAX handler</p>
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        <div class="refsect2" lang="en"><h3><a name="xmlDefaultSAXHandlerInit"/>xmlDefaultSAXHandlerInit ()</h3><pre class="programlisting">void	xmlDefaultSAXHandlerInit	(void)<br/>
</pre><p>Initialize the default SAX2 handler</p>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2AttributeDecl"/>xmlSAX2AttributeDecl ()</h3><pre class="programlisting">void	xmlSAX2AttributeDecl		(void * ctx, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * elem, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * fullname, <br/>					 int type, <br/>					 int def, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * defaultValue, <br/>					 <a href="libxml2-tree.html#xmlEnumerationPtr">xmlEnumerationPtr</a> tree)<br/>
</pre><p>An <a href="libxml2-SAX.html#attribute">attribute</a> definition has been parsed</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>elem</tt></i>:</span></td><td>the name of the element</td></tr><tr><td><span class="term"><i><tt>fullname</tt></i>:</span></td><td>the <a href="libxml2-SAX.html#attribute">attribute</a> name</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>the <a href="libxml2-SAX.html#attribute">attribute</a> type</td></tr><tr><td><span class="term"><i><tt>def</tt></i>:</span></td><td>the type of default value</td></tr><tr><td><span class="term"><i><tt>defaultValue</tt></i>:</span></td><td>the <a href="libxml2-SAX.html#attribute">attribute</a> default value</td></tr><tr><td><span class="term"><i><tt>tree</tt></i>:</span></td><td>the tree of enumerated value set</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2CDataBlock"/>xmlSAX2CDataBlock ()</h3><pre class="programlisting">void	xmlSAX2CDataBlock		(void * ctx, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * value, <br/>					 int len)<br/>
</pre><p>called when a pcdata block has been parsed</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>The pcdata content</td></tr><tr><td><span class="term"><i><tt>len</tt></i>:</span></td><td>the block length</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2Characters"/>xmlSAX2Characters ()</h3><pre class="programlisting">void	xmlSAX2Characters		(void * ctx, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * ch, <br/>					 int len)<br/>
</pre><p>receiving some chars from the parser.</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>ch</tt></i>:</span></td><td>a <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> string</td></tr><tr><td><span class="term"><i><tt>len</tt></i>:</span></td><td>the number of <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a></td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2Comment"/>xmlSAX2Comment ()</h3><pre class="programlisting">void	xmlSAX2Comment			(void * ctx, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * value)<br/>
</pre><p>A <a href="libxml2-SAX2.html#xmlSAX2Comment">xmlSAX2Comment</a> has been parsed.</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>the <a href="libxml2-SAX2.html#xmlSAX2Comment">xmlSAX2Comment</a> content</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2ElementDecl"/>xmlSAX2ElementDecl ()</h3><pre class="programlisting">void	xmlSAX2ElementDecl		(void * ctx, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name, <br/>					 int type, <br/>					 <a href="libxml2-tree.html#xmlElementContentPtr">xmlElementContentPtr</a> content)<br/>
</pre><p>An element definition has been parsed</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the element name</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>the element type</td></tr><tr><td><span class="term"><i><tt>content</tt></i>:</span></td><td>the element value tree</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2EndDocument"/>xmlSAX2EndDocument ()</h3><pre class="programlisting">void	xmlSAX2EndDocument		(void * ctx)<br/>
</pre><p>called when the document end has been detected.</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2EndElement"/>xmlSAX2EndElement ()</h3><pre class="programlisting">void	xmlSAX2EndElement		(void * ctx, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name)<br/>
</pre><p>called when the end of an element has been detected.</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>The element name</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2EndElementNs"/>xmlSAX2EndElementNs ()</h3><pre class="programlisting">void	xmlSAX2EndElementNs		(void * ctx, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * localname, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * prefix, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * URI)<br/>
</pre><p>SAX2 callback when an element end has been detected by the parser. It provides the namespace informations for the element.</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>localname</tt></i>:</span></td><td>the local name of the element</td></tr><tr><td><span class="term"><i><tt>prefix</tt></i>:</span></td><td>the element namespace prefix if available</td></tr><tr><td><span class="term"><i><tt>URI</tt></i>:</span></td><td>the element namespace name if available</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2EntityDecl"/>xmlSAX2EntityDecl ()</h3><pre class="programlisting">void	xmlSAX2EntityDecl		(void * ctx, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name, <br/>					 int type, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * publicId, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * systemId, <br/>					 <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * content)<br/>
</pre><p>An entity definition has been parsed</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the entity name</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>the entity type</td></tr><tr><td><span class="term"><i><tt>publicId</tt></i>:</span></td><td>The public ID of the entity</td></tr><tr><td><span class="term"><i><tt>systemId</tt></i>:</span></td><td>The system ID of the entity</td></tr><tr><td><span class="term"><i><tt>content</tt></i>:</span></td><td>the entity value (without processing).</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2ExternalSubset"/>xmlSAX2ExternalSubset ()</h3><pre class="programlisting">void	xmlSAX2ExternalSubset		(void * ctx, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * ExternalID, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * SystemID)<br/>
</pre><p>Callback on external subset declaration.</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the root element name</td></tr><tr><td><span class="term"><i><tt>ExternalID</tt></i>:</span></td><td>the external ID</td></tr><tr><td><span class="term"><i><tt>SystemID</tt></i>:</span></td><td>the SYSTEM ID (e.g. filename or URL)</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2GetColumnNumber"/>xmlSAX2GetColumnNumber ()</h3><pre class="programlisting">int	xmlSAX2GetColumnNumber		(void * ctx)<br/>
</pre><p>Provide the column number of the current parsing point.</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>an int</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2GetEntity"/>xmlSAX2GetEntity ()</h3><pre class="programlisting"><a href="libxml2-tree.html#xmlEntityPtr">xmlEntityPtr</a>	xmlSAX2GetEntity	(void * ctx, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name)<br/>
</pre><p>Get an entity by name</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>The entity name</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libxml2-tree.html#xmlEntityPtr">xmlEntityPtr</a> if found.</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2GetLineNumber"/>xmlSAX2GetLineNumber ()</h3><pre class="programlisting">int	xmlSAX2GetLineNumber		(void * ctx)<br/>
</pre><p>Provide the line number of the current parsing point.</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>an int</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2GetParameterEntity"/>xmlSAX2GetParameterEntity ()</h3><pre class="programlisting"><a href="libxml2-tree.html#xmlEntityPtr">xmlEntityPtr</a>	xmlSAX2GetParameterEntity	(void * ctx, <br/>						 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name)<br/>
</pre><p>Get a parameter entity by name</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>The entity name</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libxml2-tree.html#xmlEntityPtr">xmlEntityPtr</a> if found.</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2GetPublicId"/>xmlSAX2GetPublicId ()</h3><pre class="programlisting">const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *	xmlSAX2GetPublicId	(void * ctx)<br/>
</pre><p>Provides the public ID e.g. "-//SGMLSOURCE//DTD DEMO//EN"</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSAX2GetSystemId"/>xmlSAX2GetSystemId ()</h3><pre class="programlisting">const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *	xmlSAX2GetSystemId	(void * ctx)<br/>
</pre><p>Provides the system ID, basically URL or filename e.g. http://www.sgmlsource.com/dtds/memo.dtd</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the user data (XML parser context)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td></tr></tbody></table></div></div>