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</style><title>Module xmlregexp from libxml2</title></head><body bgcolor="#8b7765" text="#000000" link="#000000" vlink="#000000"><table border="0" width="100%" cellpadding="5" cellspacing="0" align="center"><tr><td width="120"><a href="http://swpat.ffii.org/"><img src="../epatents.png" alt="Action against software patents" /></a></td><td width="180"><a href="http://www.gnome.org/"><img src="../gnome2.png" alt="Gnome2 Logo" /></a><a href="http://www.w3.org/Status"><img src="../w3c.png" alt="W3C Logo" /></a><a href="http://www.redhat.com/"><img src="../redhat.gif" alt="Red Hat Logo" /></a><div align="left"><a href="http://xmlsoft.org/"><img src="../Libxml2-Logo-180x168.gif" alt="Made with Libxml2 Logo" /></a></div></td><td><table border="0" width="90%" cellpadding="2" cellspacing="0" align="center" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3" bgcolor="#fffacd"><tr><td align="center"><h1></h1><h2>Module xmlregexp from 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height="24" border="0" alt="Next" /></a></td></tr></table><p>basic API for libxml regular expressions handling used for XML Schemas and validation. </p><h2>Table of Contents</h2><pre class="programlisting">Structure <a href="#xmlRegExecCtxt">xmlRegExecCtxt</a><br />struct _xmlRegExecCtxt
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Typedef <a href="libxml-xmlregexp.html#xmlRegExecCtxt">xmlRegExecCtxt</a> * <a name="xmlRegExecCtxtPtr" id="xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a>
</pre><pre class="programlisting">Structure <a href="#xmlRegexp">xmlRegexp</a><br />struct _xmlRegexp
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Typedef <a href="libxml-xmlregexp.html#xmlRegexp">xmlRegexp</a> * <a name="xmlRegexpPtr" id="xmlRegexpPtr">xmlRegexpPtr</a>
</pre><pre class="programlisting">Function type: <a href="#xmlRegExecCallbacks">xmlRegExecCallbacks</a>
void <a href="#xmlRegExecCallbacks">xmlRegExecCallbacks</a> (<a href="libxml-xmlregexp.html#xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a> exec, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * token, <br /> void * transdata, <br /> void * inputdata)
</pre>
<pre class="programlisting">int <a href="#xmlRegExecPushString">xmlRegExecPushString</a> (<a href="libxml-xmlregexp.html#xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a> exec, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value, <br /> void * data)</pre>
<pre class="programlisting">int <a href="#xmlRegExecPushString2">xmlRegExecPushString2</a> (<a href="libxml-xmlregexp.html#xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a> exec, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value2, <br /> void * data)</pre>
<pre class="programlisting">void <a href="#xmlRegFreeExecCtxt">xmlRegFreeExecCtxt</a> (<a href="libxml-xmlregexp.html#xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a> exec)</pre>
<pre class="programlisting">void <a href="#xmlRegFreeRegexp">xmlRegFreeRegexp</a> (<a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> regexp)</pre>
<pre class="programlisting"><a href="libxml-xmlregexp.html#xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a> <a href="#xmlRegNewExecCtxt">xmlRegNewExecCtxt</a> (<a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> comp, <br /> <a href="libxml-xmlregexp.html#xmlRegExecCallbacks">xmlRegExecCallbacks</a> callback, <br /> void * data)</pre>
<pre class="programlisting"><a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> <a href="#xmlRegexpCompile">xmlRegexpCompile</a> (const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * regexp)</pre>
<pre class="programlisting">int <a href="#xmlRegexpExec">xmlRegexpExec</a> (<a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> comp, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * content)</pre>
<pre class="programlisting">int <a href="#xmlRegexpIsDeterminist">xmlRegexpIsDeterminist</a> (<a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> comp)</pre>
<pre class="programlisting">void <a href="#xmlRegexpPrint">xmlRegexpPrint</a> (FILE * output, <br /> <a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> regexp)</pre>
<h2>Description</h2>
<h3><a name="xmlRegExecCtxt" id="xmlRegExecCtxt">Structure xmlRegExecCtxt</a></h3><pre class="programlisting">Structure xmlRegExecCtxt<br />struct _xmlRegExecCtxt {
The content of this structure is not made public by the API.
}</pre><h3><a name="xmlRegexp" id="xmlRegexp">Structure xmlRegexp</a></h3><pre class="programlisting">Structure xmlRegexp<br />struct _xmlRegexp {
The content of this structure is not made public by the API.
}</pre><h3><a name="xmlRegExecCallbacks" id="xmlRegExecCallbacks"></a>Function type: xmlRegExecCallbacks</h3><pre class="programlisting">Function type: xmlRegExecCallbacks
void xmlRegExecCallbacks (<a href="libxml-xmlregexp.html#xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a> exec, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * token, <br /> void * transdata, <br /> void * inputdata)
</pre><p></p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>exec</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>token</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>transdata</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>inputdata</tt></i>:</span></td><td></td></tr></tbody></table></div><br />
<h3><a name="xmlRegExecPushString" id="xmlRegExecPushString"></a>Function: xmlRegExecPushString</h3><pre class="programlisting">int xmlRegExecPushString (<a href="libxml-xmlregexp.html#xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a> exec, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value, <br /> void * data)<br />
</pre><p>Push one input token in the execution context</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>exec</tt></i>:</span></td><td>a regexp execution context or NULL to indicate the end</td></tr><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>a string token input</td></tr><tr><td><span class="term"><i><tt>data</tt></i>:</span></td><td>data associated to the token to reuse in callbacks</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>1 if the regexp reached a final state, 0 if non-final, and a negative value in case of error.</td></tr></tbody></table></div><h3><a name="xmlRegExecPushString2" id="xmlRegExecPushString2"></a>Function: xmlRegExecPushString2</h3><pre class="programlisting">int xmlRegExecPushString2 (<a href="libxml-xmlregexp.html#xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a> exec, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value2, <br /> void * data)<br />
</pre><p>Push one input token in the execution context</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>exec</tt></i>:</span></td><td>a regexp execution context or NULL to indicate the end</td></tr><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>the first string token input</td></tr><tr><td><span class="term"><i><tt>value2</tt></i>:</span></td><td>the second string token input</td></tr><tr><td><span class="term"><i><tt>data</tt></i>:</span></td><td>data associated to the token to reuse in callbacks</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>1 if the regexp reached a final state, 0 if non-final, and a negative value in case of error.</td></tr></tbody></table></div><h3><a name="xmlRegFreeExecCtxt" id="xmlRegFreeExecCtxt"></a>Function: xmlRegFreeExecCtxt</h3><pre class="programlisting">void xmlRegFreeExecCtxt (<a href="libxml-xmlregexp.html#xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a> exec)<br />
</pre><p>Free the structures associated to a regular expression evaulation context.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>exec</tt></i>:</span></td><td>a regular expression evaulation context</td></tr></tbody></table></div><h3><a name="xmlRegFreeRegexp" id="xmlRegFreeRegexp"></a>Function: xmlRegFreeRegexp</h3><pre class="programlisting">void xmlRegFreeRegexp (<a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> regexp)<br />
</pre><p>Free a regexp</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>regexp</tt></i>:</span></td><td>the regexp</td></tr></tbody></table></div><h3><a name="xmlRegNewExecCtxt" id="xmlRegNewExecCtxt"></a>Function: xmlRegNewExecCtxt</h3><pre class="programlisting"><a href="libxml-xmlregexp.html#xmlRegExecCtxtPtr">xmlRegExecCtxtPtr</a> xmlRegNewExecCtxt (<a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> comp, <br /> <a href="libxml-xmlregexp.html#xmlRegExecCallbacks">xmlRegExecCallbacks</a> callback, <br /> void * data)<br />
</pre><p>Build a context used for progressive evaluation of a regexp.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>comp</tt></i>:</span></td><td>a precompiled regular expression</td></tr><tr><td><span class="term"><i><tt>callback</tt></i>:</span></td><td>a callback function used for handling progresses in the automata matching phase</td></tr><tr><td><span class="term"><i><tt>data</tt></i>:</span></td><td>the context data associated to the callback in this context</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new context</td></tr></tbody></table></div><h3><a name="xmlRegexpCompile" id="xmlRegexpCompile"></a>Function: xmlRegexpCompile</h3><pre class="programlisting"><a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> xmlRegexpCompile (const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * regexp)<br />
</pre><p>Parses a regular expression conforming to XML Schemas Part 2 Datatype Appendix F and build an automata suitable for testing strings against that regular expression</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>regexp</tt></i>:</span></td><td>a regular expression string</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the compiled expression or NULL in case of error</td></tr></tbody></table></div><h3><a name="xmlRegexpExec" id="xmlRegexpExec"></a>Function: xmlRegexpExec</h3><pre class="programlisting">int xmlRegexpExec (<a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> comp, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * content)<br />
</pre><p>Check if the regular expression generate the value</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>comp</tt></i>:</span></td><td>the compiled regular expression</td></tr><tr><td><span class="term"><i><tt>content</tt></i>:</span></td><td>the value to check against the regular expression</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>1 if it matches, 0 if not and a negativa value in case of error</td></tr></tbody></table></div><h3><a name="xmlRegexpIsDeterminist" id="xmlRegexpIsDeterminist"></a>Function: xmlRegexpIsDeterminist</h3><pre class="programlisting">int xmlRegexpIsDeterminist (<a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> comp)<br />
</pre><p>Check if the regular expression is determinist</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>comp</tt></i>:</span></td><td>the compiled regular expression</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>1 if it yes, 0 if not and a negativa value in case of error</td></tr></tbody></table></div><h3><a name="xmlRegexpPrint" id="xmlRegexpPrint"></a>Function: xmlRegexpPrint</h3><pre class="programlisting">void xmlRegexpPrint (FILE * output, <br /> <a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> regexp)<br />
</pre><p>Print the content of the compiled regular expression</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>output</tt></i>:</span></td><td>the file for the output debug</td></tr><tr><td><span class="term"><i><tt>regexp</tt></i>:</span></td><td>the compiled regexp</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>