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<h2><span class="refentrytitle">xmlstring</span></h2>
<p>xmlstring - set of routines to process strings</p>
<p>type and interfaces needed for the internal string handling of the library, especially UTF8 processing. </p>
<p>Author(s): Daniel Veillard </p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<pre class="synopsis">#define <a href="#BAD_CAST">BAD_CAST</a>;
typedef unsigned char <a href="#xmlChar">xmlChar</a>;
<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlCharStrdup">xmlCharStrdup</a> (const char * cur);
<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlCharStrndup">xmlCharStrndup</a> (const char * cur, <br> int len);
int <a href="#xmlCheckUTF8">xmlCheckUTF8</a> (const unsigned char * utf);
int <a href="#xmlGetUTF8Char">xmlGetUTF8Char</a> (const unsigned char * utf, <br> int * len);
int <a href="#xmlStrEqual">xmlStrEqual</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2);
int <a href="#xmlStrPrintf">xmlStrPrintf</a> (<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * buf, <br> int len, <br> const char * msg, <br> ... ...);
int <a href="#xmlStrQEqual">xmlStrQEqual</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * pref, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str);
int <a href="#xmlStrVPrintf">xmlStrVPrintf</a> (<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * buf, <br> int len, <br> const char * msg, <br> va_list ap);
int <a href="#xmlStrcasecmp">xmlStrcasecmp</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2);
const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlStrcasestr">xmlStrcasestr</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * val);
<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlStrcat">xmlStrcat</a> (<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * cur, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * add);
const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlStrchr">xmlStrchr</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str, <br> <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> val);
int <a href="#xmlStrcmp">xmlStrcmp</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2);
<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlStrdup">xmlStrdup</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * cur);
int <a href="#xmlStrlen">xmlStrlen</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str);
int <a href="#xmlStrncasecmp">xmlStrncasecmp</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2, <br> int len);
<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlStrncat">xmlStrncat</a> (<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * cur, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * add, <br> int len);
<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlStrncatNew">xmlStrncatNew</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2, <br> int len);
int <a href="#xmlStrncmp">xmlStrncmp</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2, <br> int len);
<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlStrndup">xmlStrndup</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * cur, <br> int len);
const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlStrstr">xmlStrstr</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * val);
<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlStrsub">xmlStrsub</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str, <br> int start, <br> int len);
int <a href="#xmlUTF8Charcmp">xmlUTF8Charcmp</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf2);
int <a href="#xmlUTF8Size">xmlUTF8Size</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf);
int <a href="#xmlUTF8Strlen">xmlUTF8Strlen</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf);
int <a href="#xmlUTF8Strloc">xmlUTF8Strloc</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utfchar);
<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlUTF8Strndup">xmlUTF8Strndup</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br> int len);
const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlUTF8Strpos">xmlUTF8Strpos</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br> int pos);
int <a href="#xmlUTF8Strsize">xmlUTF8Strsize</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br> int len);
<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlUTF8Strsub">xmlUTF8Strsub</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br> int start, <br> int len);
</pre>
</div>
<div class="refsect1" lang="en"><h2>Description</h2></div>
<div class="refsect1" lang="en">
<h2>Details</h2>
<div class="refsect2" lang="en">
<div class="refsect2" lang="en">
<h3>
<a name="BAD_CAST">Macro </a>BAD_CAST</h3>
<pre class="programlisting">#define <a href="#BAD_CAST">BAD_CAST</a>;
</pre>
<p>Macro to cast a string to an <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * when one know its safe.</p>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlChar">Typedef </a>xmlChar</h3>
<pre class="programlisting">unsigned char xmlChar;
</pre>
<p>This is a basic byte in an UTF-8 encoded string. It's unsigned allowing to pinpoint case where char * are assigned to <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * (possibly making serialization back impossible).</p>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlCharStrdup"></a>xmlCharStrdup ()</h3>
<pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlCharStrdup (const char * cur)<br>
</pre>
<p>a strdup for char's to xmlChar's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>cur</tt></i>:</span></td>
<td>the input char *</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * or NULL</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlCharStrndup"></a>xmlCharStrndup ()</h3>
<pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlCharStrndup (const char * cur, <br> int len)<br>
</pre>
<p>a strndup for char's to xmlChar's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>cur</tt></i>:</span></td>
<td>the input char *</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>the len of @cur</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * or NULL</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlCheckUTF8"></a>xmlCheckUTF8 ()</h3>
<pre class="programlisting">int xmlCheckUTF8 (const unsigned char * utf)<br>
</pre>
<p>Checks @utf for being valid UTF-8. @utf is assumed to be null-terminated. This function is not super-strict, as it will allow longer UTF-8 sequences than necessary. Note that Java is capable of producing these sequences if provoked. Also note, this routine checks for the 4-byte maximum size, but does not check for 0x10ffff maximum value.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>utf</tt></i>:</span></td>
<td>Pointer to putative UTF-8 encoded string.</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>value: true if @utf is valid.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlGetUTF8Char"></a>xmlGetUTF8Char ()</h3>
<pre class="programlisting">int xmlGetUTF8Char (const unsigned char * utf, <br> int * len)<br>
</pre>
<p>Read the first UTF8 character from @utf</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>utf</tt></i>:</span></td>
<td>a sequence of UTF-8 encoded bytes</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>a pointer to the minimum number of bytes present in the sequence. This is used to assure the next character is completely contained within the sequence.</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the char value or -1 in case of error, and sets *len to the actual number of bytes consumed (0 in case of error)</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrEqual"></a>xmlStrEqual ()</h3>
<pre class="programlisting">int xmlStrEqual (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2)<br>
</pre>
<p>Check if both strings are equal of have same content. Should be a bit more readable and faster than xmlStrcmp()</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str1</tt></i>:</span></td>
<td>the first <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>str2</tt></i>:</span></td>
<td>the second <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>1 if they are equal, 0 if they are different</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrPrintf"></a>xmlStrPrintf ()</h3>
<pre class="programlisting">int xmlStrPrintf (<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * buf, <br> int len, <br> const char * msg, <br> ... ...)<br>
</pre>
<p>Formats @msg and places result into @buf.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>buf</tt></i>:</span></td>
<td>the result buffer.</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>the result buffer length.</td>
</tr>
<tr>
<td><span class="term"><i><tt>msg</tt></i>:</span></td>
<td>the message with printf formatting.</td>
</tr>
<tr>
<td><span class="term"><i><tt>...</tt></i>:</span></td>
<td>extra parameters for the message.</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the number of <a href="libxml2-SAX.html#characters">characters</a> written to @buf or -1 if an error occurs.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrQEqual"></a>xmlStrQEqual ()</h3>
<pre class="programlisting">int xmlStrQEqual (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * pref, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * name, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str)<br>
</pre>
<p>Check if a QName is Equal to a given string</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>pref</tt></i>:</span></td>
<td>the prefix of the QName</td>
</tr>
<tr>
<td><span class="term"><i><tt>name</tt></i>:</span></td>
<td>the localname of the QName</td>
</tr>
<tr>
<td><span class="term"><i><tt>str</tt></i>:</span></td>
<td>the second <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>1 if they are equal, 0 if they are different</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrVPrintf"></a>xmlStrVPrintf ()</h3>
<pre class="programlisting">int xmlStrVPrintf (<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * buf, <br> int len, <br> const char * msg, <br> va_list ap)<br>
</pre>
<p>Formats @msg and places result into @buf.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>buf</tt></i>:</span></td>
<td>the result buffer.</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>the result buffer length.</td>
</tr>
<tr>
<td><span class="term"><i><tt>msg</tt></i>:</span></td>
<td>the message with printf formatting.</td>
</tr>
<tr>
<td><span class="term"><i><tt>ap</tt></i>:</span></td>
<td>extra parameters for the message.</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the number of <a href="libxml2-SAX.html#characters">characters</a> written to @buf or -1 if an error occurs.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrcasecmp"></a>xmlStrcasecmp ()</h3>
<pre class="programlisting">int xmlStrcasecmp (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2)<br>
</pre>
<p>a strcasecmp for xmlChar's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str1</tt></i>:</span></td>
<td>the first <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>str2</tt></i>:</span></td>
<td>the second <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the integer result of the comparison</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrcasestr"></a>xmlStrcasestr ()</h3>
<pre class="programlisting">const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlStrcasestr (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * val)<br>
</pre>
<p>a case-ignoring strstr for xmlChar's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * array (haystack)</td>
</tr>
<tr>
<td><span class="term"><i><tt>val</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> to search (needle)</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * for the first occurrence or NULL.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrcat"></a>xmlStrcat ()</h3>
<pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlStrcat (<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * cur, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * add)<br>
</pre>
<p>a strcat for array of xmlChar's. Since they are supposed to be encoded in UTF-8 or an encoding with 8bit based chars, we assume a termination mark of '0'.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>cur</tt></i>:</span></td>
<td>the original <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * array</td>
</tr>
<tr>
<td><span class="term"><i><tt>add</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * array added</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * containing the concatenated string. The original @cur is reallocated and should not be freed.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrchr"></a>xmlStrchr ()</h3>
<pre class="programlisting">const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlStrchr (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str, <br> <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> val)<br>
</pre>
<p>a strchr for xmlChar's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * array</td>
</tr>
<tr>
<td><span class="term"><i><tt>val</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> to search</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * for the first occurrence or NULL.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrcmp"></a>xmlStrcmp ()</h3>
<pre class="programlisting">int xmlStrcmp (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2)<br>
</pre>
<p>a strcmp for xmlChar's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str1</tt></i>:</span></td>
<td>the first <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>str2</tt></i>:</span></td>
<td>the second <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the integer result of the comparison</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrdup"></a>xmlStrdup ()</h3>
<pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlStrdup (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * cur)<br>
</pre>
<p>a strdup for array of xmlChar's. Since they are supposed to be encoded in UTF-8 or an encoding with 8bit based chars, we assume a termination mark of '0'.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>cur</tt></i>:</span></td>
<td>the input <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * or NULL</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrlen"></a>xmlStrlen ()</h3>
<pre class="programlisting">int xmlStrlen (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str)<br>
</pre>
<p>length of a xmlChar's string</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * array</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the number of <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> contained in the ARRAY.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrncasecmp"></a>xmlStrncasecmp ()</h3>
<pre class="programlisting">int xmlStrncasecmp (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2, <br> int len)<br>
</pre>
<p>a strncasecmp for xmlChar's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str1</tt></i>:</span></td>
<td>the first <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>str2</tt></i>:</span></td>
<td>the second <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>the max comparison length</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the integer result of the comparison</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrncat"></a>xmlStrncat ()</h3>
<pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlStrncat (<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * cur, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * add, <br> int len)<br>
</pre>
<p>a strncat for array of xmlChar's, it will extend @cur with the len first bytes of @add. Note that if @len < 0 then this is an API error and NULL will be returned.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>cur</tt></i>:</span></td>
<td>the original <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * array</td>
</tr>
<tr>
<td><span class="term"><i><tt>add</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * array added</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>the length of @add</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *, the original @cur is reallocated and should not be freed.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrncatNew"></a>xmlStrncatNew ()</h3>
<pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlStrncatNew (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2, <br> int len)<br>
</pre>
<p>same as xmlStrncat, but creates a new string. The original two strings are not freed. If @len is < 0 then the length will be calculated automatically.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str1</tt></i>:</span></td>
<td>first <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> string</td>
</tr>
<tr>
<td><span class="term"><i><tt>str2</tt></i>:</span></td>
<td>second <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 len of @str2 or < 0</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * or NULL</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrncmp"></a>xmlStrncmp ()</h3>
<pre class="programlisting">int xmlStrncmp (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str2, <br> int len)<br>
</pre>
<p>a strncmp for xmlChar's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str1</tt></i>:</span></td>
<td>the first <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>str2</tt></i>:</span></td>
<td>the second <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>the max comparison length</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the integer result of the comparison</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrndup"></a>xmlStrndup ()</h3>
<pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlStrndup (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * cur, <br> int len)<br>
</pre>
<p>a strndup for array of xmlChar's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>cur</tt></i>:</span></td>
<td>the input <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>the len of @cur</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * or NULL</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrstr"></a>xmlStrstr ()</h3>
<pre class="programlisting">const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlStrstr (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * val)<br>
</pre>
<p>a strstr for xmlChar's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * array (haystack)</td>
</tr>
<tr>
<td><span class="term"><i><tt>val</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> to search (needle)</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * for the first occurrence or NULL.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlStrsub"></a>xmlStrsub ()</h3>
<pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlStrsub (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str, <br> int start, <br> int len)<br>
</pre>
<p>Extract a substring of a given string</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>str</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * array (haystack)</td>
</tr>
<tr>
<td><span class="term"><i><tt>start</tt></i>:</span></td>
<td>the index of the first char (zero based)</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>the length of the substring</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * for the first occurrence or NULL.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlUTF8Charcmp"></a>xmlUTF8Charcmp ()</h3>
<pre class="programlisting">int xmlUTF8Charcmp (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf1, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf2)<br>
</pre>
<p>compares the two UCS4 values</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>utf1</tt></i>:</span></td>
<td>pointer to first UTF8 char</td>
</tr>
<tr>
<td><span class="term"><i><tt>utf2</tt></i>:</span></td>
<td>pointer to second UTF8 char</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>result of the compare as with <a href="libxml2-xmlstring.html#xmlStrncmp">xmlStrncmp</a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlUTF8Size"></a>xmlUTF8Size ()</h3>
<pre class="programlisting">int xmlUTF8Size (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf)<br>
</pre>
<p>calculates the internal size of a UTF8 character</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>utf</tt></i>:</span></td>
<td>pointer to the UTF8 character</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the numbers of bytes in the character, -1 on format error</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlUTF8Strlen"></a>xmlUTF8Strlen ()</h3>
<pre class="programlisting">int xmlUTF8Strlen (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf)<br>
</pre>
<p>compute the length of an UTF8 string, it doesn't do a full UTF8 checking of the content of the string.</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>utf</tt></i>:</span></td>
<td>a sequence of UTF-8 encoded bytes</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the number of <a href="libxml2-SAX.html#characters">characters</a> in the string or -1 in case of error</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlUTF8Strloc"></a>xmlUTF8Strloc ()</h3>
<pre class="programlisting">int xmlUTF8Strloc (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br> const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utfchar)<br>
</pre>
<p>a function to provide the relative location of a UTF8 char</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>utf</tt></i>:</span></td>
<td>the input UTF8 *</td>
</tr>
<tr>
<td><span class="term"><i><tt>utfchar</tt></i>:</span></td>
<td>the UTF8 character to be found</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the relative character position of the desired char or -1 if not found</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlUTF8Strndup"></a>xmlUTF8Strndup ()</h3>
<pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlUTF8Strndup (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br> int len)<br>
</pre>
<p>a strndup for array of UTF8's</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>utf</tt></i>:</span></td>
<td>the input UTF8 *</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>the len of @utf (in chars)</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a new UTF8 * or NULL</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlUTF8Strpos"></a>xmlUTF8Strpos ()</h3>
<pre class="programlisting">const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlUTF8Strpos (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br> int pos)<br>
</pre>
<p>a function to provide the equivalent of fetching a character from a string array</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>utf</tt></i>:</span></td>
<td>the input UTF8 *</td>
</tr>
<tr>
<td><span class="term"><i><tt>pos</tt></i>:</span></td>
<td>the position of the desired UTF8 char (in chars)</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a pointer to the UTF8 character or NULL</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlUTF8Strsize"></a>xmlUTF8Strsize ()</h3>
<pre class="programlisting">int xmlUTF8Strsize (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br> int len)<br>
</pre>
<p>storage size of an UTF8 string the behaviour is not guaranteed if the input string is not UTF-8</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>utf</tt></i>:</span></td>
<td>a sequence of UTF-8 encoded bytes</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>the number of <a href="libxml2-SAX.html#characters">characters</a> in the array</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>the storage size of the first 'len' <a href="libxml2-SAX.html#characters">characters</a> of ARRAY</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<h3>
<a name="xmlUTF8Strsub"></a>xmlUTF8Strsub ()</h3>
<pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlUTF8Strsub (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br> int start, <br> int len)<br>
</pre>
<p>Create a substring from a given UTF-8 string Note: positions are given in units of UTF-8 chars</p>
<div class="variablelist"><table border="0">
<col align="left">
<tbody>
<tr>
<td><span class="term"><i><tt>utf</tt></i>:</span></td>
<td>a sequence of UTF-8 encoded bytes</td>
</tr>
<tr>
<td><span class="term"><i><tt>start</tt></i>:</span></td>
<td>relative pos of first char</td>
</tr>
<tr>
<td><span class="term"><i><tt>len</tt></i>:</span></td>
<td>total number to copy</td>
</tr>
<tr>
<td><span class="term"><i><tt>Returns</tt></i>:</span></td>
<td>a pointer to a newly created string or NULL if the start index is out of bounds or a memory allocation failed. If len is too large, the result is truncated.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
</div>
</div>
</body>
</html>