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<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><link rel="SHORTCUT ICON" href="/favicon.ico" /><style type="text/css"> TD {font-family: Verdana,Arial,Helvetica} BODY {font-family: Verdana,Arial,Helvetica; margin-top: 2em; margin-left: 0em; margin-right: 0em} H1 {font-family: Verdana,Arial,Helvetica} H2 {font-family: Verdana,Arial,Helvetica} H3 {font-family: Verdana,Arial,Helvetica} A:link, A:visited, A:active { text-decoration: underline } </style><style type="text/css"> div.deprecated pre.programlisting {border-style: double;border-color:red} pre.programlisting {border-style: double;background: #EECFA1} </style><title>Module hash from libxml2</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000"><table border="0" width="100%" 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/></a></td><th align="center"><a href="../index.html">The XML C parser and toolkit of Gnome</a></th><th align="right"><a href="libxml-list.html">list</a></th><td><a accesskey="n" href="libxml-list.html"><img src="right.png" width="24" height="24" border="0" alt="Next" /></a></td></tr></table><p>This module implements the hash table support used in various places in the library. </p><h2>Table of Contents</h2><pre class="programlisting">#define <a href="#XML_CAST_FPTR">XML_CAST_FPTR</a></pre><pre class="programlisting">Structure <a href="#xmlHashTable">xmlHashTable</a><br />struct _xmlHashTable The content of this structure is not made public by the API. </pre><pre class="programlisting">Typedef <a href="libxml-hash.html#xmlHashTable">xmlHashTable</a> * <a name="xmlHashTablePtr" id="xmlHashTablePtr">xmlHashTablePtr</a> </pre><pre class="programlisting">int <a href="#xmlHashAddEntry">xmlHashAddEntry</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> void * userdata)</pre> <pre class="programlisting">int <a href="#xmlHashAddEntry2">xmlHashAddEntry2</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> void * userdata)</pre> <pre class="programlisting">int <a href="#xmlHashAddEntry3">xmlHashAddEntry3</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3, <br /> void * userdata)</pre> <pre class="programlisting">Function type: <a href="#xmlHashCopier">xmlHashCopier</a> void * <a href="#xmlHashCopier">xmlHashCopier</a> (void * payload, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name) </pre> <pre class="programlisting"><a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> <a href="#xmlHashCopy">xmlHashCopy</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> <a href="libxml-hash.html#xmlHashCopier">xmlHashCopier</a> f)</pre> <pre class="programlisting"><a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> <a href="#xmlHashCreate">xmlHashCreate</a> (int size)</pre> <pre class="programlisting"><a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> <a href="#xmlHashCreateDict">xmlHashCreateDict</a> (int size, <br /> <a href="libxml-dict.html#xmlDictPtr">xmlDictPtr</a> dict)</pre> <pre class="programlisting">Function type: <a href="#xmlHashDeallocator">xmlHashDeallocator</a> void <a href="#xmlHashDeallocator">xmlHashDeallocator</a> (void * payload, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name) </pre> <pre class="programlisting">void <a href="#xmlHashFree">xmlHashFree</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)</pre> <pre class="programlisting">void * <a href="#xmlHashLookup">xmlHashLookup</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name)</pre> <pre class="programlisting">void * <a href="#xmlHashLookup2">xmlHashLookup2</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2)</pre> <pre class="programlisting">void * <a href="#xmlHashLookup3">xmlHashLookup3</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3)</pre> <pre class="programlisting">void * <a href="#xmlHashQLookup">xmlHashQLookup</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name)</pre> <pre class="programlisting">void * <a href="#xmlHashQLookup2">xmlHashQLookup2</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2)</pre> <pre class="programlisting">void * <a href="#xmlHashQLookup3">xmlHashQLookup3</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix3, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3)</pre> <pre class="programlisting">int <a href="#xmlHashRemoveEntry">xmlHashRemoveEntry</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)</pre> <pre class="programlisting">int <a href="#xmlHashRemoveEntry2">xmlHashRemoveEntry2</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)</pre> <pre class="programlisting">int <a href="#xmlHashRemoveEntry3">xmlHashRemoveEntry3</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)</pre> <pre class="programlisting">void <a href="#xmlHashScan">xmlHashScan</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> <a href="libxml-hash.html#xmlHashScanner">xmlHashScanner</a> f, <br /> void * data)</pre> <pre class="programlisting">void <a href="#xmlHashScan3">xmlHashScan3</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3, <br /> <a href="libxml-hash.html#xmlHashScanner">xmlHashScanner</a> f, <br /> void * data)</pre> <pre class="programlisting">void <a href="#xmlHashScanFull">xmlHashScanFull</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> <a href="libxml-hash.html#xmlHashScannerFull">xmlHashScannerFull</a> f, <br /> void * data)</pre> <pre class="programlisting">void <a href="#xmlHashScanFull3">xmlHashScanFull3</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3, <br /> <a href="libxml-hash.html#xmlHashScannerFull">xmlHashScannerFull</a> f, <br /> void * data)</pre> <pre class="programlisting">Function type: <a href="#xmlHashScanner">xmlHashScanner</a> void <a href="#xmlHashScanner">xmlHashScanner</a> (void * payload, <br /> void * data, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name) </pre> <pre class="programlisting">Function type: <a href="#xmlHashScannerFull">xmlHashScannerFull</a> void <a href="#xmlHashScannerFull">xmlHashScannerFull</a> (void * payload, <br /> void * data, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3) </pre> <pre class="programlisting">int <a href="#xmlHashSize">xmlHashSize</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table)</pre> <pre class="programlisting">int <a href="#xmlHashUpdateEntry">xmlHashUpdateEntry</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> void * userdata, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)</pre> <pre class="programlisting">int <a href="#xmlHashUpdateEntry2">xmlHashUpdateEntry2</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> void * userdata, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)</pre> <pre class="programlisting">int <a href="#xmlHashUpdateEntry3">xmlHashUpdateEntry3</a> (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3, <br /> void * userdata, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)</pre> <h2>Description</h2> <h3><a name="XML_CAST_FPTR" id="XML_CAST_FPTR"></a>Macro: XML_CAST_FPTR</h3><pre>#define XML_CAST_FPTR</pre><p>Macro to do a casting from an object pointer to a function pointer without encountering a warning from gcc #define XML_CAST_FPTR(fptr) (*(void **)(&fptr)) This macro violated ISO C aliasing rules (gcc4 on s390 broke) so it is disabled now</p> <h3><a name="xmlHashTable" id="xmlHashTable">Structure xmlHashTable</a></h3><pre class="programlisting">Structure xmlHashTable<br />struct _xmlHashTable { The content of this structure is not made public by the API. }</pre><h3><a name="xmlHashAddEntry" id="xmlHashAddEntry"></a>Function: xmlHashAddEntry</h3><pre class="programlisting">int xmlHashAddEntry (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> void * userdata)<br /> </pre><p>Add the @userdata to the hash @table. This can later be retrieved by using the @name. Duplicate names generate errors.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>userdata</tt></i>:</span></td><td>a pointer to the userdata</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 the addition succeeded and -1 in case of error.</td></tr></tbody></table></div><h3><a name="xmlHashAddEntry2" id="xmlHashAddEntry2"></a>Function: xmlHashAddEntry2</h3><pre class="programlisting">int xmlHashAddEntry2 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> void * userdata)<br /> </pre><p>Add the @userdata to the hash @table. This can later be retrieved by using the (@name, @name2) tuple. Duplicate tuples generate errors.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata</td></tr><tr><td><span class="term"><i><tt>userdata</tt></i>:</span></td><td>a pointer to the userdata</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 the addition succeeded and -1 in case of error.</td></tr></tbody></table></div><h3><a name="xmlHashAddEntry3" id="xmlHashAddEntry3"></a>Function: xmlHashAddEntry3</h3><pre class="programlisting">int xmlHashAddEntry3 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3, <br /> void * userdata)<br /> </pre><p>Add the @userdata to the hash @table. This can later be retrieved by using the tuple (@name, @name2, @name3). Duplicate entries generate errors.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata</td></tr><tr><td><span class="term"><i><tt>name3</tt></i>:</span></td><td>a third name of the userdata</td></tr><tr><td><span class="term"><i><tt>userdata</tt></i>:</span></td><td>a pointer to the userdata</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 the addition succeeded and -1 in case of error.</td></tr></tbody></table></div><h3><a name="xmlHashCopier" id="xmlHashCopier"></a>Function type: xmlHashCopier</h3><pre class="programlisting">Function type: xmlHashCopier void * xmlHashCopier (void * payload, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name) </pre><p>Callback to copy data from a hash.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>payload</tt></i>:</span></td><td>the data in the hash</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name associated</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a copy of the data or NULL in case of error.</td></tr></tbody></table></div><br /> <h3><a name="xmlHashCopy" id="xmlHashCopy"></a>Function: xmlHashCopy</h3><pre class="programlisting"><a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> xmlHashCopy (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> <a href="libxml-hash.html#xmlHashCopier">xmlHashCopier</a> f)<br /> </pre><p>Scan the hash @table and applied @f to each value.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the copier function for items in the hash</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new table or NULL in case of error.</td></tr></tbody></table></div><h3><a name="xmlHashCreate" id="xmlHashCreate"></a>Function: xmlHashCreate</h3><pre class="programlisting"><a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> xmlHashCreate (int size)<br /> </pre><p>Create a new xmlHashTablePtr.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>the size of the hash table</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the newly created object, or NULL if an error occured.</td></tr></tbody></table></div><h3><a name="xmlHashCreateDict" id="xmlHashCreateDict"></a>Function: xmlHashCreateDict</h3><pre class="programlisting"><a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> xmlHashCreateDict (int size, <br /> <a href="libxml-dict.html#xmlDictPtr">xmlDictPtr</a> dict)<br /> </pre><p>Create a new <a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> which will use @dict as the internal dictionary</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>the size of the hash table</td></tr><tr><td><span class="term"><i><tt>dict</tt></i>:</span></td><td>a dictionary to use for the hash</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the newly created object, or NULL if an error occured.</td></tr></tbody></table></div><h3><a name="xmlHashDeallocator" id="xmlHashDeallocator"></a>Function type: xmlHashDeallocator</h3><pre class="programlisting">Function type: xmlHashDeallocator void xmlHashDeallocator (void * payload, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name) </pre><p>Callback to free data from a hash.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>payload</tt></i>:</span></td><td>the data in the hash</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name associated</td></tr></tbody></table></div><br /> <h3><a name="xmlHashFree" id="xmlHashFree"></a>Function: xmlHashFree</h3><pre class="programlisting">void xmlHashFree (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)<br /> </pre><p>Free the hash @table and its contents. The userdata is deallocated with @f if provided.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the deallocator function for items in the hash</td></tr></tbody></table></div><h3><a name="xmlHashLookup" id="xmlHashLookup"></a>Function: xmlHashLookup</h3><pre class="programlisting">void * xmlHashLookup (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name)<br /> </pre><p>Find the userdata specified by the @name.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the pointer to the userdata</td></tr></tbody></table></div><h3><a name="xmlHashLookup2" id="xmlHashLookup2"></a>Function: xmlHashLookup2</h3><pre class="programlisting">void * xmlHashLookup2 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2)<br /> </pre><p>Find the userdata specified by the (@name, @name2) tuple.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the pointer to the userdata</td></tr></tbody></table></div><h3><a name="xmlHashLookup3" id="xmlHashLookup3"></a>Function: xmlHashLookup3</h3><pre class="programlisting">void * xmlHashLookup3 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3)<br /> </pre><p>Find the userdata specified by the (@name, @name2, @name3) tuple.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata</td></tr><tr><td><span class="term"><i><tt>name3</tt></i>:</span></td><td>a third name of the userdata</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the a pointer to the userdata</td></tr></tbody></table></div><h3><a name="xmlHashQLookup" id="xmlHashQLookup"></a>Function: xmlHashQLookup</h3><pre class="programlisting">void * xmlHashQLookup (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name)<br /> </pre><p>Find the userdata specified by the QName @prefix:@name/@name.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>prefix</tt></i>:</span></td><td>the prefix of the userdata</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the pointer to the userdata</td></tr></tbody></table></div><h3><a name="xmlHashQLookup2" id="xmlHashQLookup2"></a>Function: xmlHashQLookup2</h3><pre class="programlisting">void * xmlHashQLookup2 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2)<br /> </pre><p>Find the userdata specified by the QNames tuple</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>prefix</tt></i>:</span></td><td>the prefix of the userdata</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>prefix2</tt></i>:</span></td><td>the second prefix of the userdata</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the pointer to the userdata</td></tr></tbody></table></div><h3><a name="xmlHashQLookup3" id="xmlHashQLookup3"></a>Function: xmlHashQLookup3</h3><pre class="programlisting">void * xmlHashQLookup3 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix3, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3)<br /> </pre><p>Find the userdata specified by the (@name, @name2, @name3) tuple.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>prefix</tt></i>:</span></td><td>the prefix of the userdata</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>prefix2</tt></i>:</span></td><td>the second prefix of the userdata</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata</td></tr><tr><td><span class="term"><i><tt>prefix3</tt></i>:</span></td><td>the third prefix of the userdata</td></tr><tr><td><span class="term"><i><tt>name3</tt></i>:</span></td><td>a third name of the userdata</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the a pointer to the userdata</td></tr></tbody></table></div><h3><a name="xmlHashRemoveEntry" id="xmlHashRemoveEntry"></a>Function: xmlHashRemoveEntry</h3><pre class="programlisting">int xmlHashRemoveEntry (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)<br /> </pre><p>Find the userdata specified by the @name and remove it from the hash @table. Existing userdata for this tuple will be removed and freed with @f.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the deallocator function for removed item (if any)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the removal succeeded and -1 in case of error or not found.</td></tr></tbody></table></div><h3><a name="xmlHashRemoveEntry2" id="xmlHashRemoveEntry2"></a>Function: xmlHashRemoveEntry2</h3><pre class="programlisting">int xmlHashRemoveEntry2 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)<br /> </pre><p>Find the userdata specified by the (@name, @name2) tuple and remove it from the hash @table. Existing userdata for this tuple will be removed and freed with @f.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the deallocator function for removed item (if any)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the removal succeeded and -1 in case of error or not found.</td></tr></tbody></table></div><h3><a name="xmlHashRemoveEntry3" id="xmlHashRemoveEntry3"></a>Function: xmlHashRemoveEntry3</h3><pre class="programlisting">int xmlHashRemoveEntry3 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)<br /> </pre><p>Find the userdata specified by the (@name, @name2, @name3) tuple and remove it from the hash @table. Existing userdata for this tuple will be removed and freed with @f.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata</td></tr><tr><td><span class="term"><i><tt>name3</tt></i>:</span></td><td>a third name of the userdata</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the deallocator function for removed item (if any)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the removal succeeded and -1 in case of error or not found.</td></tr></tbody></table></div><h3><a name="xmlHashScan" id="xmlHashScan"></a>Function: xmlHashScan</h3><pre class="programlisting">void xmlHashScan (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> <a href="libxml-hash.html#xmlHashScanner">xmlHashScanner</a> f, <br /> void * data)<br /> </pre><p>Scan the hash @table and applied @f to each value.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the scanner function for items in the hash</td></tr><tr><td><span class="term"><i><tt>data</tt></i>:</span></td><td>extra data passed to f</td></tr></tbody></table></div><h3><a name="xmlHashScan3" id="xmlHashScan3"></a>Function: xmlHashScan3</h3><pre class="programlisting">void xmlHashScan3 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3, <br /> <a href="libxml-hash.html#xmlHashScanner">xmlHashScanner</a> f, <br /> void * data)<br /> </pre><p>Scan the hash @table and applied @f to each value matching (@name, @name2, @name3) tuple. If one of the names is null, the comparison is considered to match.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata or NULL</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata or NULL</td></tr><tr><td><span class="term"><i><tt>name3</tt></i>:</span></td><td>a third name of the userdata or NULL</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the scanner function for items in the hash</td></tr><tr><td><span class="term"><i><tt>data</tt></i>:</span></td><td>extra data passed to f</td></tr></tbody></table></div><h3><a name="xmlHashScanFull" id="xmlHashScanFull"></a>Function: xmlHashScanFull</h3><pre class="programlisting">void xmlHashScanFull (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> <a href="libxml-hash.html#xmlHashScannerFull">xmlHashScannerFull</a> f, <br /> void * data)<br /> </pre><p>Scan the hash @table and applied @f to each value.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the scanner function for items in the hash</td></tr><tr><td><span class="term"><i><tt>data</tt></i>:</span></td><td>extra data passed to f</td></tr></tbody></table></div><h3><a name="xmlHashScanFull3" id="xmlHashScanFull3"></a>Function: xmlHashScanFull3</h3><pre class="programlisting">void xmlHashScanFull3 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3, <br /> <a href="libxml-hash.html#xmlHashScannerFull">xmlHashScannerFull</a> f, <br /> void * data)<br /> </pre><p>Scan the hash @table and applied @f to each value matching (@name, @name2, @name3) tuple. If one of the names is null, the comparison is considered to match.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata or NULL</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata or NULL</td></tr><tr><td><span class="term"><i><tt>name3</tt></i>:</span></td><td>a third name of the userdata or NULL</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the scanner function for items in the hash</td></tr><tr><td><span class="term"><i><tt>data</tt></i>:</span></td><td>extra data passed to f</td></tr></tbody></table></div><h3><a name="xmlHashScanner" id="xmlHashScanner"></a>Function type: xmlHashScanner</h3><pre class="programlisting">Function type: xmlHashScanner void xmlHashScanner (void * payload, <br /> void * data, <br /> <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name) </pre><p>Callback when scanning data in a hash with the simple scanner.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>payload</tt></i>:</span></td><td>the data in the hash</td></tr><tr><td><span class="term"><i><tt>data</tt></i>:</span></td><td>extra scannner data</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name associated</td></tr></tbody></table></div><br /> <h3><a name="xmlHashScannerFull" id="xmlHashScannerFull"></a>Function type: xmlHashScannerFull</h3><pre class="programlisting">Function type: xmlHashScannerFull void xmlHashScannerFull (void * payload, <br /> void * data, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3) </pre><p>Callback when scanning data in a hash with the full scanner.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>payload</tt></i>:</span></td><td>the data in the hash</td></tr><tr><td><span class="term"><i><tt>data</tt></i>:</span></td><td>extra scannner data</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name associated</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>the second name associated</td></tr><tr><td><span class="term"><i><tt>name3</tt></i>:</span></td><td>the third name associated</td></tr></tbody></table></div><br /> <h3><a name="xmlHashSize" id="xmlHashSize"></a>Function: xmlHashSize</h3><pre class="programlisting">int xmlHashSize (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table)<br /> </pre><p>Query the number of elements installed in the hash @table.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of elements in the hash table or -1 in case of error</td></tr></tbody></table></div><h3><a name="xmlHashUpdateEntry" id="xmlHashUpdateEntry"></a>Function: xmlHashUpdateEntry</h3><pre class="programlisting">int xmlHashUpdateEntry (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> void * userdata, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)<br /> </pre><p>Add the @userdata to the hash @table. This can later be retrieved by using the @name. Existing entry for this @name will be removed and freed with @f if found.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>userdata</tt></i>:</span></td><td>a pointer to the userdata</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the deallocator function for replaced item (if any)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 the addition succeeded and -1 in case of error.</td></tr></tbody></table></div><h3><a name="xmlHashUpdateEntry2" id="xmlHashUpdateEntry2"></a>Function: xmlHashUpdateEntry2</h3><pre class="programlisting">int xmlHashUpdateEntry2 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> void * userdata, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)<br /> </pre><p>Add the @userdata to the hash @table. This can later be retrieved by using the (@name, @name2) tuple. Existing entry for this tuple will be removed and freed with @f if found.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata</td></tr><tr><td><span class="term"><i><tt>userdata</tt></i>:</span></td><td>a pointer to the userdata</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the deallocator function for replaced item (if any)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 the addition succeeded and -1 in case of error.</td></tr></tbody></table></div><h3><a name="xmlHashUpdateEntry3" id="xmlHashUpdateEntry3"></a>Function: xmlHashUpdateEntry3</h3><pre class="programlisting">int xmlHashUpdateEntry3 (<a href="libxml-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name2, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name3, <br /> void * userdata, <br /> <a href="libxml-hash.html#xmlHashDeallocator">xmlHashDeallocator</a> f)<br /> </pre><p>Add the @userdata to the hash @table. This can later be retrieved by using the tuple (@name, @name2, @name3). Existing entry for this tuple will be removed and freed with @f if found.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>table</tt></i>:</span></td><td>the hash table</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the name of the userdata</td></tr><tr><td><span class="term"><i><tt>name2</tt></i>:</span></td><td>a second name of the userdata</td></tr><tr><td><span class="term"><i><tt>name3</tt></i>:</span></td><td>a third name of the userdata</td></tr><tr><td><span class="term"><i><tt>userdata</tt></i>:</span></td><td>a pointer to the userdata</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the deallocator function for replaced item (if any)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 the addition succeeded and -1 in case of error.</td></tr></tbody></table></div><p><a href="../bugs.html">Daniel Veillard</a></p></td></tr></table></td></tr></table></td></tr></table></td></tr></table></td></tr></table></body></html>