libxml2-hash.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.

typedef void * <a href="#xmlHashCopier">xmlHashCopier</a>			(void * payload, <br/>					 <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name);
int	<a href="#xmlHashAddEntry2">xmlHashAddEntry2</a>		(<a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name2, <br/>					 void * userdata);
int	<a href="#xmlHashAddEntry3">xmlHashAddEntry3</a>		(<a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name2, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name3, <br/>					 void * userdata);
int	<a href="#xmlHashSize">xmlHashSize</a>			(<a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table);
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    <div class="refsect1" lang="en">
      <h2>Description</h2>
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    <div class="refsect1" lang="en">
      <h2>Details</h2>
      <div class="refsect2" lang="en">
        <div class="refsect2" lang="en"><h3><a name="XML_CAST_FPTR">Macro </a>XML_CAST_FPTR</h3><pre class="programlisting">#define <a href="#XML_CAST_FPTR">XML_CAST_FPTR</a>(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 **)(&amp;fptr)) This macro violated ISO C aliasing rules (gcc4 on s390 broke) so it is disabled now</p><div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>fptr</tt></i>:</span></td><td>pointer to a function</td></tr></tbody></table></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashTable">Structure </a>xmlHashTable</h3><pre class="programlisting">struct _xmlHashTable {
The content of this structure is not made public by the API.
} xmlHashTable;
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        <div class="refsect2" lang="en"><h3><a name="xmlHashTablePtr">Typedef </a>xmlHashTablePtr</h3><pre class="programlisting"><a href="libxml2-hash.html#xmlHashTable">xmlHashTable</a> * xmlHashTablePtr;
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        <div class="refsect2" lang="en"><h3><a name="xmlHashCopier"/>Function type xmlHashCopier</h3><pre class="programlisting">void *	xmlHashCopier			(void * payload, <br/>					 <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name)<br/>
</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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashDeallocator"/>Function type xmlHashDeallocator</h3><pre class="programlisting">void	xmlHashDeallocator		(void * payload, <br/>					 <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name)<br/>
</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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashScanner"/>Function type xmlHashScanner</h3><pre class="programlisting">void	xmlHashScanner			(void * payload, <br/>					 void * data, <br/>					 <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name)<br/>
</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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashScannerFull"/>Function type xmlHashScannerFull</h3><pre class="programlisting">void	xmlHashScannerFull		(void * payload, <br/>					 void * data, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name2, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name3)<br/>
</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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashAddEntry"/>xmlHashAddEntry ()</h3><pre class="programlisting">int	xmlHashAddEntry			(<a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br/>					 const <a href="libxml2-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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashAddEntry2"/>xmlHashAddEntry2 ()</h3><pre class="programlisting">int	xmlHashAddEntry2		(<a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name, <br/>					 const <a href="libxml2-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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashAddEntry3"/>xmlHashAddEntry3 ()</h3><pre class="programlisting">int	xmlHashAddEntry3		(<a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name2, <br/>					 const <a href="libxml2-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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashCopy"/>xmlHashCopy ()</h3><pre class="programlisting"><a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a>	xmlHashCopy		(<a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br/>					 <a href="libxml2-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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashCreate"/>xmlHashCreate ()</h3><pre class="programlisting"><a href="libxml2-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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashCreateDict"/>xmlHashCreateDict ()</h3><pre class="programlisting"><a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a>	xmlHashCreateDict	(int size, <br/>					 <a href="libxml2-dict.html#xmlDictPtr">xmlDictPtr</a> dict)<br/>
</pre><p>Create a new <a href="libxml2-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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashFree"/>xmlHashFree ()</h3><pre class="programlisting">void	xmlHashFree			(<a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br/>					 <a href="libxml2-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></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlHashLookup"/>xmlHashLookup ()</h3><pre class="programlisting">void *	xmlHashLookup			(<a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a> table, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name)<br/>
</pre><p>Find the userdata specified by the @name.</p>