1<?xml version="1.0" encoding="UTF-8"?> 2<html> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> 5 <title>xmlstring: set of routines to process strings</title> 6 <meta name="generator" content="Libxml2 devhelp stylesheet"/> 7 <link rel="start" href="index.html" title="libxml2 Reference Manual"/> 8 <link rel="up" href="general.html" title="API"/> 9 <link rel="stylesheet" href="style.css" type="text/css"/> 10 <link rel="chapter" href="general.html" title="API"/> 11 </head> 12 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13 <table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"> 14 <tr valign="middle"> 15 <td> 16 <a accesskey="p" href="libxml2-xmlschemastypes.html"> 17 <img src="left.png" width="24" height="24" border="0" alt="Prev"/> 18 </a> 19 </td> 20 <td> 21 <a accesskey="u" href="general.html"> 22 <img src="up.png" width="24" height="24" border="0" alt="Up"/> 23 </a> 24 </td> 25 <td> 26 <a accesskey="h" href="index.html"> 27 <img src="home.png" width="24" height="24" border="0" alt="Home"/> 28 </a> 29 </td> 30 <td> 31 <a accesskey="n" href="libxml2-xmlunicode.html"> 32 <img src="right.png" width="24" height="24" border="0" alt="Next"/> 33 </a> 34 </td> 35 <th width="100%" align="center">libxml2 Reference Manual</th> 36 </tr> 37 </table> 38 <h2> 39 <span class="refentrytitle">xmlstring</span> 40 </h2> 41 <p>xmlstring - set of routines to process strings</p> 42 <p>type and interfaces needed for the internal string handling of the library, especially UTF8 processing. </p> 43 <p>Author(s): Daniel Veillard </p> 44 <div class="refsynopsisdiv"> 45 <h2>Synopsis</h2> 46 <pre class="synopsis">#define <a href="#BAD_CAST">BAD_CAST</a>; 47typedef unsigned char <a href="#xmlChar">xmlChar</a>; 48int <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); 49<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlCharStrndup">xmlCharStrndup</a> (const char * cur, <br/> int len); 50const <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); 51<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); 52int <a href="#xmlStrPrintf">xmlStrPrintf</a> (<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * buf, <br/> int len, <br/> const char * msg, <br/> ... ...); 53const <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); 54int <a href="#xmlUTF8Size">xmlUTF8Size</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf); 55int <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); 56<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); 57const <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); 58<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlStrdup">xmlStrdup</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * cur); 59<a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlCharStrdup">xmlCharStrdup</a> (const char * cur); 60const <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); 61int <a href="#xmlStrlen">xmlStrlen</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str); 62int <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); 63<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); 64<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); 65int <a href="#xmlGetUTF8Char">xmlGetUTF8Char</a> (const unsigned char * utf, <br/> int * len); 66int <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); 67<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); 68int <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); 69int <a href="#xmlUTF8Strsize">xmlUTF8Strsize</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br/> int len); 70int <a href="#xmlCheckUTF8">xmlCheckUTF8</a> (const unsigned char * utf); 71int <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); 72int <a href="#xmlUTF8Strlen">xmlUTF8Strlen</a> (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf); 73<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); 74int <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); 75int <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); 76<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); 77int <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); 78</pre> 79 </div> 80 <div class="refsect1" lang="en"> 81 <h2>Description</h2> 82 </div> 83 <div class="refsect1" lang="en"> 84 <h2>Details</h2> 85 <div class="refsect2" lang="en"> 86 <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>; 87</pre><p>Macro to cast a string to an <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * when one know its safe.</p> 88</div> 89 <hr/> 90 <div class="refsect2" lang="en"><h3><a name="xmlChar">Typedef </a>xmlChar</h3><pre class="programlisting">unsigned char xmlChar; 91</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> 92</div> 93 <hr/> 94 <div class="refsect2" lang="en"><h3><a name="xmlCharStrdup"/>xmlCharStrdup ()</h3><pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlCharStrdup (const char * cur)<br/> 95</pre><p>a strdup for char's to xmlChar's</p> 96<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> 97 <hr/> 98 <div class="refsect2" lang="en"><h3><a name="xmlCharStrndup"/>xmlCharStrndup ()</h3><pre class="programlisting"><a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * xmlCharStrndup (const char * cur, <br/> int len)<br/> 99</pre><p>a strndup for char's to xmlChar's</p> 100<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> 101 <hr/> 102 <div class="refsect2" lang="en"><h3><a name="xmlCheckUTF8"/>xmlCheckUTF8 ()</h3><pre class="programlisting">int xmlCheckUTF8 (const unsigned char * utf)<br/> 103</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> 104<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> 105 <hr/> 106 <div class="refsect2" lang="en"><h3><a name="xmlGetUTF8Char"/>xmlGetUTF8Char ()</h3><pre class="programlisting">int xmlGetUTF8Char (const unsigned char * utf, <br/> int * len)<br/> 107</pre><p>Read the first UTF8 character from @utf</p> 108<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> 109 <hr/> 110 <div class="refsect2" lang="en"><h3><a name="xmlStrEqual"/>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/> 111</pre><p>Check if both strings are equal of have same content. Should be a bit more readable and faster than xmlStrcmp()</p> 112<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> 113 <hr/> 114 <div class="refsect2" lang="en"><h3><a name="xmlStrPrintf"/>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/> 115</pre><p>Formats @msg and places result into @buf.</p> 116<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> 117 <hr/> 118 <div class="refsect2" lang="en"><h3><a name="xmlStrQEqual"/>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/> 119</pre><p>Check if a QName is Equal to a given string</p> 120<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> 121 <hr/> 122 <div class="refsect2" lang="en"><h3><a name="xmlStrVPrintf"/>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/> 123</pre><p>Formats @msg and places result into @buf.</p> 124<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> 125 <hr/> 126 <div class="refsect2" lang="en"><h3><a name="xmlStrcasecmp"/>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/> 127</pre><p>a strcasecmp for xmlChar's</p> 128<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> 129 <hr/> 130 <div class="refsect2" lang="en"><h3><a name="xmlStrcasestr"/>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/> 131</pre><p>a case-ignoring strstr for xmlChar's</p> 132<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> 133 <hr/> 134 <div class="refsect2" lang="en"><h3><a name="xmlStrcat"/>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/> 135</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> 136<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> 137 <hr/> 138 <div class="refsect2" lang="en"><h3><a name="xmlStrchr"/>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/> 139</pre><p>a strchr for xmlChar's</p> 140<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> 141 <hr/> 142 <div class="refsect2" lang="en"><h3><a name="xmlStrcmp"/>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/> 143</pre><p>a strcmp for xmlChar's</p> 144<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> 145 <hr/> 146 <div class="refsect2" lang="en"><h3><a name="xmlStrdup"/>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/> 147</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> 148<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> 149 <hr/> 150 <div class="refsect2" lang="en"><h3><a name="xmlStrlen"/>xmlStrlen ()</h3><pre class="programlisting">int xmlStrlen (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * str)<br/> 151</pre><p>length of a xmlChar's string</p> 152<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> 153 <hr/> 154 <div class="refsect2" lang="en"><h3><a name="xmlStrncasecmp"/>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/> 155</pre><p>a strncasecmp for xmlChar's</p> 156<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> 157 <hr/> 158 <div class="refsect2" lang="en"><h3><a name="xmlStrncat"/>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/> 159</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> 160<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> 161 <hr/> 162 <div class="refsect2" lang="en"><h3><a name="xmlStrncatNew"/>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/> 163</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> 164<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> 165 <hr/> 166 <div class="refsect2" lang="en"><h3><a name="xmlStrncmp"/>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/> 167</pre><p>a strncmp for xmlChar's</p> 168<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> 169 <hr/> 170 <div class="refsect2" lang="en"><h3><a name="xmlStrndup"/>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/> 171</pre><p>a strndup for array of xmlChar's</p> 172<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> 173 <hr/> 174 <div class="refsect2" lang="en"><h3><a name="xmlStrstr"/>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/> 175</pre><p>a strstr for xmlChar's</p> 176<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> 177 <hr/> 178 <div class="refsect2" lang="en"><h3><a name="xmlStrsub"/>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/> 179</pre><p>Extract a substring of a given string</p> 180<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> 181 <hr/> 182 <div class="refsect2" lang="en"><h3><a name="xmlUTF8Charcmp"/>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/> 183</pre><p>compares the two UCS4 values</p> 184<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> 185 <hr/> 186 <div class="refsect2" lang="en"><h3><a name="xmlUTF8Size"/>xmlUTF8Size ()</h3><pre class="programlisting">int xmlUTF8Size (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf)<br/> 187</pre><p>calculates the internal size of a UTF8 character</p> 188<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> 189 <hr/> 190 <div class="refsect2" lang="en"><h3><a name="xmlUTF8Strlen"/>xmlUTF8Strlen ()</h3><pre class="programlisting">int xmlUTF8Strlen (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf)<br/> 191</pre><p>compute the length of an UTF8 string, it doesn't do a full UTF8 checking of the content of the string.</p> 192<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> 193 <hr/> 194 <div class="refsect2" lang="en"><h3><a name="xmlUTF8Strloc"/>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/> 195</pre><p>a function to provide the relative location of a UTF8 char</p> 196<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> 197 <hr/> 198 <div class="refsect2" lang="en"><h3><a name="xmlUTF8Strndup"/>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/> 199</pre><p>a strndup for array of UTF8's</p> 200<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> 201 <hr/> 202 <div class="refsect2" lang="en"><h3><a name="xmlUTF8Strpos"/>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/> 203</pre><p>a function to provide the equivalent of fetching a character from a string array</p> 204<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> 205 <hr/> 206 <div class="refsect2" lang="en"><h3><a name="xmlUTF8Strsize"/>xmlUTF8Strsize ()</h3><pre class="programlisting">int xmlUTF8Strsize (const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * utf, <br/> int len)<br/> 207</pre><p>storage size of an UTF8 string the behaviour is not guaranteed if the input string is not UTF-8</p> 208<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> 209 <hr/> 210 <div class="refsect2" lang="en"><h3><a name="xmlUTF8Strsub"/>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/> 211</pre><p>Create a substring from a given UTF-8 string Note: positions are given in units of UTF-8 chars</p> 212<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 any problem</td></tr></tbody></table></div></div> 213 <hr/> 214 </div> 215 </div> 216 </body> 217</html> 218
