doc/devhelp/libxml2-xmlschemas.html

   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>xmlschemas: incomplete XML Schemas structure implementation</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-xmlsave.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-xmlschemastypes.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">xmlschemas</span>
  40     </h2>
  41     <p>xmlschemas - incomplete XML Schemas structure implementation</p>
  42     <p>interface to the XML Schemas handling and schema validity checking, it is incomplete right now. </p>
  43     <p>Author(s): Daniel Veillard </p>
  44     <div class="refsynopsisdiv">
  45       <h2>Synopsis</h2>
  46       <pre class="synopsis">typedef <a href="libxml2-xmlschemas.html#xmlSchema">xmlSchema</a> * <a href="#xmlSchemaPtr">xmlSchemaPtr</a>;
  47 typedef struct _xmlSchemaParserCtxt <a href="#xmlSchemaParserCtxt">xmlSchemaParserCtxt</a>;
  48 typedef enum <a href="#xmlSchemaValidOption">xmlSchemaValidOption</a>;
  49 typedef <a href="libxml2-xmlschemas.html#xmlSchemaSAXPlugStruct">xmlSchemaSAXPlugStruct</a> * <a href="#xmlSchemaSAXPlugPtr">xmlSchemaSAXPlugPtr</a>;
  50 typedef struct _xmlSchemaSAXPlug <a href="#xmlSchemaSAXPlugStruct">xmlSchemaSAXPlugStruct</a>;
  51 typedef <a href="libxml2-xmlschemas.html#xmlSchemaValidCtxt">xmlSchemaValidCtxt</a> * <a href="#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a>;
  52 typedef <a href="libxml2-xmlschemas.html#xmlSchemaParserCtxt">xmlSchemaParserCtxt</a> * <a href="#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a>;
  53 typedef struct _xmlSchema <a href="#xmlSchema">xmlSchema</a>;
  54 typedef enum <a href="#xmlSchemaValidError">xmlSchemaValidError</a>;
  55 typedef struct _xmlSchemaValidCtxt <a href="#xmlSchemaValidCtxt">xmlSchemaValidCtxt</a>;
  56 <a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a>     <a href="#xmlSchemaNewDocParserCtxt">xmlSchemaNewDocParserCtxt</a>      (<a href="libxml2-tree.html#xmlDocPtr">xmlDocPtr</a> doc);
  57 int     <a href="#xmlSchemaSAXUnplug">xmlSchemaSAXUnplug</a>            (<a href="libxml2-xmlschemas.html#xmlSchemaSAXPlugPtr">xmlSchemaSAXPlugPtr</a> plug);
  58 <a href="libxml2-xmlschemas.html#xmlSchemaPtr">xmlSchemaPtr</a> <a href="#xmlSchemaParse">xmlSchemaParse</a>            (<a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt);
  59 void    <a href="#xmlSchemaFreeParserCtxt">xmlSchemaFreeParserCtxt</a>          (<a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt);
  60 <a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a>     <a href="#xmlSchemaNewParserCtxt">xmlSchemaNewParserCtxt</a>    (const char * URL);
  61 int     <a href="#xmlSchemaIsValid">xmlSchemaIsValid</a>                (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt);
  62 typedef void <a href="#xmlSchemaValidityErrorFunc">xmlSchemaValidityErrorFunc</a>       (void * ctx, <br/>                                       const char * msg, <br/>                                         ... ...);
  63 <a href="libxml2-xmlschemas.html#xmlSchemaSAXPlugPtr">xmlSchemaSAXPlugPtr</a>   <a href="#xmlSchemaSAXPlug">xmlSchemaSAXPlug</a>        (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                           <a href="libxml2-tree.html#xmlSAXHandlerPtr">xmlSAXHandlerPtr</a> * sax, <br/>                                          void ** user_data);
  64 int     <a href="#xmlSchemaValidateStream">xmlSchemaValidateStream</a>          (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   <a href="libxml2-tree.html#xmlParserInputBufferPtr">xmlParserInputBufferPtr</a> input, <br/>                                    <a href="libxml2-encoding.html#xmlCharEncoding">xmlCharEncoding</a> enc, <br/>                                  <a href="libxml2-tree.html#xmlSAXHandlerPtr">xmlSAXHandlerPtr</a> sax, <br/>                                    void * user_data);
  65 int     <a href="#xmlSchemaGetParserErrors">xmlSchemaGetParserErrors</a>        (<a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt, <br/>                                         <a href="libxml2-xmlschemas.html#xmlSchemaValidityErrorFunc">xmlSchemaValidityErrorFunc</a> * err, <br/>                                        <a href="libxml2-xmlschemas.html#xmlSchemaValidityWarningFunc">xmlSchemaValidityWarningFunc</a> * warn, <br/>                                   void ** ctx);
  66 int     <a href="#xmlSchemaValidateOneElement">xmlSchemaValidateOneElement</a>  (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   <a href="libxml2-tree.html#xmlNodePtr">xmlNodePtr</a> elem);
  67 void    <a href="#xmlSchemaSetValidStructuredErrors">xmlSchemaSetValidStructuredErrors</a>      (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                           <a href="libxml2-xmlerror.html#xmlStructuredErrorFunc">xmlStructuredErrorFunc</a> serror, <br/>                                                 void * ctx);
  68 void    <a href="#xmlSchemaSetValidErrors">xmlSchemaSetValidErrors</a>          (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   <a href="libxml2-xmlschemas.html#xmlSchemaValidityErrorFunc">xmlSchemaValidityErrorFunc</a> err, <br/>                                  <a href="libxml2-xmlschemas.html#xmlSchemaValidityWarningFunc">xmlSchemaValidityWarningFunc</a> warn, <br/>                                     void * ctx);
  69 int     <a href="#xmlSchemaValidCtxtGetOptions">xmlSchemaValidCtxtGetOptions</a>        (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt);
  70 int     <a href="#xmlSchemaValidateFile">xmlSchemaValidateFile</a>              (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   const char * filename, <br/>                                    int options);
  71 int     <a href="#xmlSchemaValidateDoc">xmlSchemaValidateDoc</a>                (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   <a href="libxml2-tree.html#xmlDocPtr">xmlDocPtr</a> doc);
  72 void    <a href="#xmlSchemaFree">xmlSchemaFree</a>                      (<a href="libxml2-xmlschemas.html#xmlSchemaPtr">xmlSchemaPtr</a> schema);
  73 <a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a>     <a href="#xmlSchemaNewMemParserCtxt">xmlSchemaNewMemParserCtxt</a>      (const char * buffer, <br/>                                                      int size);
  74 int     <a href="#xmlSchemaGetValidErrors">xmlSchemaGetValidErrors</a>          (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   <a href="libxml2-xmlschemas.html#xmlSchemaValidityErrorFunc">xmlSchemaValidityErrorFunc</a> * err, <br/>                                        <a href="libxml2-xmlschemas.html#xmlSchemaValidityWarningFunc">xmlSchemaValidityWarningFunc</a> * warn, <br/>                                   void ** ctx);
  75 int     <a href="#xmlSchemaSetValidOptions">xmlSchemaSetValidOptions</a>        (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   int options);
  76 void    <a href="#xmlSchemaSetParserErrors">xmlSchemaSetParserErrors</a>        (<a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt, <br/>                                         <a href="libxml2-xmlschemas.html#xmlSchemaValidityErrorFunc">xmlSchemaValidityErrorFunc</a> err, <br/>                                  <a href="libxml2-xmlschemas.html#xmlSchemaValidityWarningFunc">xmlSchemaValidityWarningFunc</a> warn, <br/>                                     void * ctx);
  77 typedef void <a href="#xmlSchemaValidityWarningFunc">xmlSchemaValidityWarningFunc</a>   (void * ctx, <br/>                                       const char * msg, <br/>                                         ... ...);
  78 void    <a href="#xmlSchemaDump">xmlSchemaDump</a>                      (FILE * output, <br/>                                    <a href="libxml2-xmlschemas.html#xmlSchemaPtr">xmlSchemaPtr</a> schema);
  79 void    <a href="#xmlSchemaFreeValidCtxt">xmlSchemaFreeValidCtxt</a>            (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt);
  80 <a href="libxml2-tree.html#xmlParserCtxtPtr">xmlParserCtxtPtr</a>       <a href="#xmlSchemaValidCtxtGetParserCtxt">xmlSchemaValidCtxtGetParserCtxt</a>  (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt);
  81 void    <a href="#xmlSchemaSetParserStructuredErrors">xmlSchemaSetParserStructuredErrors</a>    (<a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt, <br/>                                                 <a href="libxml2-xmlerror.html#xmlStructuredErrorFunc">xmlStructuredErrorFunc</a> serror, <br/>                                                 void * ctx);
  82 <a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a>       <a href="#xmlSchemaNewValidCtxt">xmlSchemaNewValidCtxt</a>      (<a href="libxml2-xmlschemas.html#xmlSchemaPtr">xmlSchemaPtr</a> schema);
  83 </pre>
  84     </div>
  85     <div class="refsect1" lang="en">
  86       <h2>Description</h2>
  87     </div>
  88     <div class="refsect1" lang="en">
  89       <h2>Details</h2>
  90       <div class="refsect2" lang="en">
  91         <div class="refsect2" lang="en"><h3><a name="xmlSchema">Structure </a>xmlSchema</h3><pre class="programlisting">struct _xmlSchema {
  92     const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *        name    : schema name
  93     const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *        targetNamespace : the target namespace
  94     const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *        version
  95     const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> *        id      : Obsolete
  96     <a href="libxml2-tree.html#xmlDocPtr">xmlDocPtr</a> doc
  97     <a href="libxml2-schemasInternals.html#xmlSchemaAnnotPtr">xmlSchemaAnnotPtr</a>     annot
  98     int flags
  99     <a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a>     typeDecl
 100     <a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a>     attrDecl
 101     <a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a>     attrgrpDecl
 102     <a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a>     elemDecl
 103     <a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a>     notaDecl
 104     <a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a>     schemasImports
 105     void *      _private        : unused by the library for users or bindings
 106     <a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a>     groupDecl
 107     <a href="libxml2-dict.html#xmlDictPtr">xmlDictPtr</a>       dict
 108     void *      includes        : the includes, this is opaque for now
 109     int preserve        : whether to free the document
 110     int counter : used to give ononymous components unique names
 111     <a href="libxml2-hash.html#xmlHashTablePtr">xmlHashTablePtr</a>     idcDef  : All identity-constraint defs.
 112     void *      volatiles       : Obsolete
 113 } xmlSchema;
 114 </pre><p/>
 115 </div>
 116         <hr/>
 117         <div class="refsect2" lang="en"><h3><a name="xmlSchemaParserCtxt">Structure </a>xmlSchemaParserCtxt</h3><pre class="programlisting">struct _xmlSchemaParserCtxt {
 118 The content of this structure is not made public by the API.
 119 } xmlSchemaParserCtxt;
 120 </pre><p/>
 121 </div>
 122         <hr/>
 123         <div class="refsect2" lang="en"><h3><a name="xmlSchemaParserCtxtPtr">Typedef </a>xmlSchemaParserCtxtPtr</h3><pre class="programlisting"><a href="libxml2-xmlschemas.html#xmlSchemaParserCtxt">xmlSchemaParserCtxt</a> * xmlSchemaParserCtxtPtr;
 124 </pre><p/>
 125 </div>
 126         <hr/>
 127         <div class="refsect2" lang="en"><h3><a name="xmlSchemaPtr">Typedef </a>xmlSchemaPtr</h3><pre class="programlisting"><a href="libxml2-xmlschemas.html#xmlSchema">xmlSchema</a> * xmlSchemaPtr;
 128 </pre><p/>
 129 </div>
 130         <hr/>
 131         <div class="refsect2" lang="en"><h3><a name="xmlSchemaSAXPlugPtr">Typedef </a>xmlSchemaSAXPlugPtr</h3><pre class="programlisting"><a href="libxml2-xmlschemas.html#xmlSchemaSAXPlugStruct">xmlSchemaSAXPlugStruct</a> * xmlSchemaSAXPlugPtr;
 132 </pre><p/>
 133 </div>
 134         <hr/>
 135         <div class="refsect2" lang="en"><h3><a name="xmlSchemaSAXPlugStruct">Structure </a>xmlSchemaSAXPlugStruct</h3><pre class="programlisting">struct _xmlSchemaSAXPlug {
 136 The content of this structure is not made public by the API.
 137 } xmlSchemaSAXPlugStruct;
 138 </pre><p/>
 139 </div>
 140         <hr/>
 141         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidCtxt">Structure </a>xmlSchemaValidCtxt</h3><pre class="programlisting">struct _xmlSchemaValidCtxt {
 142 The content of this structure is not made public by the API.
 143 } xmlSchemaValidCtxt;
 144 </pre><p/>
 145 </div>
 146         <hr/>
 147         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidCtxtPtr">Typedef </a>xmlSchemaValidCtxtPtr</h3><pre class="programlisting"><a href="libxml2-xmlschemas.html#xmlSchemaValidCtxt">xmlSchemaValidCtxt</a> * xmlSchemaValidCtxtPtr;
 148 </pre><p/>
 149 </div>
 150         <hr/>
 151         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidError">Enum </a>xmlSchemaValidError</h3><pre class="programlisting">enum <a href="#xmlSchemaValidError">xmlSchemaValidError</a> {
 152     <a name="XML_SCHEMAS_ERR_OK">XML_SCHEMAS_ERR_OK</a> = 0
 153     <a name="XML_SCHEMAS_ERR_NOROOT">XML_SCHEMAS_ERR_NOROOT</a> = 1
 154     <a name="XML_SCHEMAS_ERR_UNDECLAREDELEM">XML_SCHEMAS_ERR_UNDECLAREDELEM</a> = 2
 155     <a name="XML_SCHEMAS_ERR_NOTTOPLEVEL">XML_SCHEMAS_ERR_NOTTOPLEVEL</a> = 3
 156     <a name="XML_SCHEMAS_ERR_MISSING">XML_SCHEMAS_ERR_MISSING</a> = 4
 157     <a name="XML_SCHEMAS_ERR_WRONGELEM">XML_SCHEMAS_ERR_WRONGELEM</a> = 5
 158     <a name="XML_SCHEMAS_ERR_NOTYPE">XML_SCHEMAS_ERR_NOTYPE</a> = 6
 159     <a name="XML_SCHEMAS_ERR_NOROLLBACK">XML_SCHEMAS_ERR_NOROLLBACK</a> = 7
 160     <a name="XML_SCHEMAS_ERR_ISABSTRACT">XML_SCHEMAS_ERR_ISABSTRACT</a> = 8
 161     <a name="XML_SCHEMAS_ERR_NOTEMPTY">XML_SCHEMAS_ERR_NOTEMPTY</a> = 9
 162     <a name="XML_SCHEMAS_ERR_ELEMCONT">XML_SCHEMAS_ERR_ELEMCONT</a> = 10
 163     <a name="XML_SCHEMAS_ERR_HAVEDEFAULT">XML_SCHEMAS_ERR_HAVEDEFAULT</a> = 11
 164     <a name="XML_SCHEMAS_ERR_NOTNILLABLE">XML_SCHEMAS_ERR_NOTNILLABLE</a> = 12
 165     <a name="XML_SCHEMAS_ERR_EXTRACONTENT">XML_SCHEMAS_ERR_EXTRACONTENT</a> = 13
 166     <a name="XML_SCHEMAS_ERR_INVALIDATTR">XML_SCHEMAS_ERR_INVALIDATTR</a> = 14
 167     <a name="XML_SCHEMAS_ERR_INVALIDELEM">XML_SCHEMAS_ERR_INVALIDELEM</a> = 15
 168     <a name="XML_SCHEMAS_ERR_NOTDETERMINIST">XML_SCHEMAS_ERR_NOTDETERMINIST</a> = 16
 169     <a name="XML_SCHEMAS_ERR_CONSTRUCT">XML_SCHEMAS_ERR_CONSTRUCT</a> = 17
 170     <a name="XML_SCHEMAS_ERR_INTERNAL">XML_SCHEMAS_ERR_INTERNAL</a> = 18
 171     <a name="XML_SCHEMAS_ERR_NOTSIMPLE">XML_SCHEMAS_ERR_NOTSIMPLE</a> = 19
 172     <a name="XML_SCHEMAS_ERR_ATTRUNKNOWN">XML_SCHEMAS_ERR_ATTRUNKNOWN</a> = 20
 173     <a name="XML_SCHEMAS_ERR_ATTRINVALID">XML_SCHEMAS_ERR_ATTRINVALID</a> = 21
 174     <a name="XML_SCHEMAS_ERR_VALUE">XML_SCHEMAS_ERR_VALUE</a> = 22
 175     <a name="XML_SCHEMAS_ERR_FACET">XML_SCHEMAS_ERR_FACET</a> = 23
 176     <a name="XML_SCHEMAS_ERR_">XML_SCHEMAS_ERR_</a> = 24
 177     <a name="XML_SCHEMAS_ERR_XXX">XML_SCHEMAS_ERR_XXX</a> = 25
 178 };
 179 </pre><p/>
 180 </div>
 181         <hr/>
 182         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidOption">Enum </a>xmlSchemaValidOption</h3><pre class="programlisting">enum <a href="#xmlSchemaValidOption">xmlSchemaValidOption</a> {
 183     <a name="XML_SCHEMA_VAL_VC_I_CREATE">XML_SCHEMA_VAL_VC_I_CREATE</a> = 1 /*  Default/fixed: create an attribute node * or an element's text node on the instance. * */
 184 };
 185 </pre><p/>
 186 </div>
 187         <hr/>
 188         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidityErrorFunc"/>Function type xmlSchemaValidityErrorFunc</h3><pre class="programlisting">void xmlSchemaValidityErrorFunc      (void * ctx, <br/>                                       const char * msg, <br/>                                         ... ...)<br/>
 189 </pre><p>Signature of an error callback from an XSD validation</p>
 190 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the validation context</td></tr><tr><td><span class="term"><i><tt>msg</tt></i>:</span></td><td>the message</td></tr><tr><td><span class="term"><i><tt>...</tt></i>:</span></td><td>extra arguments</td></tr></tbody></table></div></div>
 191         <hr/>
 192         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidityWarningFunc"/>Function type xmlSchemaValidityWarningFunc</h3><pre class="programlisting">void     xmlSchemaValidityWarningFunc    (void * ctx, <br/>                                       const char * msg, <br/>                                         ... ...)<br/>
 193 </pre><p>Signature of a warning callback from an XSD validation</p>
 194 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the validation context</td></tr><tr><td><span class="term"><i><tt>msg</tt></i>:</span></td><td>the message</td></tr><tr><td><span class="term"><i><tt>...</tt></i>:</span></td><td>extra arguments</td></tr></tbody></table></div></div>
 195         <hr/>
 196         <div class="refsect2" lang="en"><h3><a name="xmlSchemaDump"/>xmlSchemaDump ()</h3><pre class="programlisting">void      xmlSchemaDump                   (FILE * output, <br/>                                    <a href="libxml2-xmlschemas.html#xmlSchemaPtr">xmlSchemaPtr</a> schema)<br/>
 197 </pre><p>Dump a Schema structure.</p>
 198 <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 output</td></tr><tr><td><span class="term"><i><tt>schema</tt></i>:</span></td><td>a schema structure</td></tr></tbody></table></div></div>
 199         <hr/>
 200         <div class="refsect2" lang="en"><h3><a name="xmlSchemaFree"/>xmlSchemaFree ()</h3><pre class="programlisting">void      xmlSchemaFree                   (<a href="libxml2-xmlschemas.html#xmlSchemaPtr">xmlSchemaPtr</a> schema)<br/>
 201 </pre><p>Deallocate a Schema structure.</p>
 202 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>schema</tt></i>:</span></td><td>a schema structure</td></tr></tbody></table></div></div>
 203         <hr/>
 204         <div class="refsect2" lang="en"><h3><a name="xmlSchemaFreeParserCtxt"/>xmlSchemaFreeParserCtxt ()</h3><pre class="programlisting">void  xmlSchemaFreeParserCtxt         (<a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt)<br/>
 205 </pre><p>Free the resources associated to the schema parser context</p>
 206 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the schema parser context</td></tr></tbody></table></div></div>
 207         <hr/>
 208         <div class="refsect2" lang="en"><h3><a name="xmlSchemaFreeValidCtxt"/>xmlSchemaFreeValidCtxt ()</h3><pre class="programlisting">void    xmlSchemaFreeValidCtxt          (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt)<br/>
 209 </pre><p>Free the resources associated to the schema validation context</p>
 210 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the schema validation context</td></tr></tbody></table></div></div>
 211         <hr/>
 212         <div class="refsect2" lang="en"><h3><a name="xmlSchemaGetParserErrors"/>xmlSchemaGetParserErrors ()</h3><pre class="programlisting">int xmlSchemaGetParserErrors        (<a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt, <br/>                                         <a href="libxml2-xmlschemas.html#xmlSchemaValidityErrorFunc">xmlSchemaValidityErrorFunc</a> * err, <br/>                                        <a href="libxml2-xmlschemas.html#xmlSchemaValidityWarningFunc">xmlSchemaValidityWarningFunc</a> * warn, <br/>                                   void ** ctx)<br/>
 213 </pre><p>Get the callback information used to handle errors for a parser context</p>
 214 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a XMl-Schema parser context</td></tr><tr><td><span class="term"><i><tt>err</tt></i>:</span></td><td>the error callback result</td></tr><tr><td><span class="term"><i><tt>warn</tt></i>:</span></td><td>the warning callback result</td></tr><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>contextual data for the callbacks result</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of failure, 0 otherwise</td></tr></tbody></table></div></div>
 215         <hr/>
 216         <div class="refsect2" lang="en"><h3><a name="xmlSchemaGetValidErrors"/>xmlSchemaGetValidErrors ()</h3><pre class="programlisting">int   xmlSchemaGetValidErrors         (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   <a href="libxml2-xmlschemas.html#xmlSchemaValidityErrorFunc">xmlSchemaValidityErrorFunc</a> * err, <br/>                                        <a href="libxml2-xmlschemas.html#xmlSchemaValidityWarningFunc">xmlSchemaValidityWarningFunc</a> * warn, <br/>                                   void ** ctx)<br/>
 217 </pre><p>Get the error and warning callback informations</p>
 218 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a XML-Schema validation context</td></tr><tr><td><span class="term"><i><tt>err</tt></i>:</span></td><td>the error function result</td></tr><tr><td><span class="term"><i><tt>warn</tt></i>:</span></td><td>the warning function result</td></tr><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the functions context result</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error and 0 otherwise</td></tr></tbody></table></div></div>
 219         <hr/>
 220         <div class="refsect2" lang="en"><h3><a name="xmlSchemaIsValid"/>xmlSchemaIsValid ()</h3><pre class="programlisting">int xmlSchemaIsValid                (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt)<br/>
 221 </pre><p>Check if any error was detected during validation.</p>
 222 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the schema validation context</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>1 if valid so far, 0 if errors were detected, and -1 in case of internal error.</td></tr></tbody></table></div></div>
 223         <hr/>
 224         <div class="refsect2" lang="en"><h3><a name="xmlSchemaNewDocParserCtxt"/>xmlSchemaNewDocParserCtxt ()</h3><pre class="programlisting"><a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a>       xmlSchemaNewDocParserCtxt       (<a href="libxml2-tree.html#xmlDocPtr">xmlDocPtr</a> doc)<br/>
 225 </pre><p>Create an XML Schemas parse context for that document. NB. The document may be modified during the parsing process.</p>
 226 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>doc</tt></i>:</span></td><td>a preparsed document tree</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the parser context or NULL in case of error</td></tr></tbody></table></div></div>
 227         <hr/>
 228         <div class="refsect2" lang="en"><h3><a name="xmlSchemaNewMemParserCtxt"/>xmlSchemaNewMemParserCtxt ()</h3><pre class="programlisting"><a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a>       xmlSchemaNewMemParserCtxt       (const char * buffer, <br/>                                                      int size)<br/>
 229 </pre><p>Create an XML Schemas parse context for that memory buffer expected to contain an XML Schemas file.</p>
 230 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>buffer</tt></i>:</span></td><td>a pointer to a char array containing the schemas</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>the size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the parser context or NULL in case of error</td></tr></tbody></table></div></div>
 231         <hr/>
 232         <div class="refsect2" lang="en"><h3><a name="xmlSchemaNewParserCtxt"/>xmlSchemaNewParserCtxt ()</h3><pre class="programlisting"><a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a>     xmlSchemaNewParserCtxt  (const char * URL)<br/>
 233 </pre><p>Create an XML Schemas parse context for that file/resource expected to contain an XML Schemas file.</p>
 234 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>URL</tt></i>:</span></td><td>the location of the schema</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the parser context or NULL in case of error</td></tr></tbody></table></div></div>
 235         <hr/>
 236         <div class="refsect2" lang="en"><h3><a name="xmlSchemaNewValidCtxt"/>xmlSchemaNewValidCtxt ()</h3><pre class="programlisting"><a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> xmlSchemaNewValidCtxt   (<a href="libxml2-xmlschemas.html#xmlSchemaPtr">xmlSchemaPtr</a> schema)<br/>
 237 </pre><p>Create an XML Schemas validation context based on the given schema.</p>
 238 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>schema</tt></i>:</span></td><td>a precompiled XML Schemas</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the validation context or NULL in case of error</td></tr></tbody></table></div></div>
 239         <hr/>
 240         <div class="refsect2" lang="en"><h3><a name="xmlSchemaParse"/>xmlSchemaParse ()</h3><pre class="programlisting"><a href="libxml2-xmlschemas.html#xmlSchemaPtr">xmlSchemaPtr</a> xmlSchemaParse          (<a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt)<br/>
 241 </pre><p>parse a schema definition resource and build an internal XML Shema struture which can be used to validate instances.</p>
 242 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the internal XML Schema structure built from the resource or NULL in case of error</td></tr></tbody></table></div></div>
 243         <hr/>
 244         <div class="refsect2" lang="en"><h3><a name="xmlSchemaSAXPlug"/>xmlSchemaSAXPlug ()</h3><pre class="programlisting"><a href="libxml2-xmlschemas.html#xmlSchemaSAXPlugPtr">xmlSchemaSAXPlugPtr</a>       xmlSchemaSAXPlug        (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                           <a href="libxml2-tree.html#xmlSAXHandlerPtr">xmlSAXHandlerPtr</a> * sax, <br/>                                          void ** user_data)<br/>
 245 </pre><p>Plug a SAX based validation layer in a SAX parsing event flow. The original @saxptr and @dataptr data are replaced by new pointers but the calls to the original will be maintained.</p>
 246 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>sax</tt></i>:</span></td><td>a pointer to the original <a href="libxml2-tree.html#xmlSAXHandlerPtr">xmlSAXHandlerPtr</a></td></tr><tr><td><span class="term"><i><tt>user_data</tt></i>:</span></td><td>a pointer to the original SAX user data pointer</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to a data structure needed to unplug the validation layer or NULL in case of errors.</td></tr></tbody></table></div></div>
 247         <hr/>
 248         <div class="refsect2" lang="en"><h3><a name="xmlSchemaSAXUnplug"/>xmlSchemaSAXUnplug ()</h3><pre class="programlisting">int     xmlSchemaSAXUnplug              (<a href="libxml2-xmlschemas.html#xmlSchemaSAXPlugPtr">xmlSchemaSAXPlugPtr</a> plug)<br/>
 249 </pre><p>Unplug a SAX based validation layer in a SAX parsing event flow. The original pointers used in the call are restored.</p>
 250 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>plug</tt></i>:</span></td><td>a data structure returned by <a href="libxml2-xmlschemas.html#xmlSchemaSAXPlug">xmlSchemaSAXPlug</a></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div></div>
 251         <hr/>
 252         <div class="refsect2" lang="en"><h3><a name="xmlSchemaSetParserErrors"/>xmlSchemaSetParserErrors ()</h3><pre class="programlisting">void        xmlSchemaSetParserErrors        (<a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt, <br/>                                         <a href="libxml2-xmlschemas.html#xmlSchemaValidityErrorFunc">xmlSchemaValidityErrorFunc</a> err, <br/>                                  <a href="libxml2-xmlschemas.html#xmlSchemaValidityWarningFunc">xmlSchemaValidityWarningFunc</a> warn, <br/>                                     void * ctx)<br/>
 253 </pre><p>Set the callback functions used to handle errors for a validation context</p>
 254 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>err</tt></i>:</span></td><td>the error callback</td></tr><tr><td><span class="term"><i><tt>warn</tt></i>:</span></td><td>the warning callback</td></tr><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>contextual data for the callbacks</td></tr></tbody></table></div></div>
 255         <hr/>
 256         <div class="refsect2" lang="en"><h3><a name="xmlSchemaSetParserStructuredErrors"/>xmlSchemaSetParserStructuredErrors ()</h3><pre class="programlisting">void    xmlSchemaSetParserStructuredErrors      (<a href="libxml2-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt, <br/>                                                 <a href="libxml2-xmlerror.html#xmlStructuredErrorFunc">xmlStructuredErrorFunc</a> serror, <br/>                                                 void * ctx)<br/>
 257 </pre><p>Set the structured error callback</p>
 258 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema parser context</td></tr><tr><td><span class="term"><i><tt>serror</tt></i>:</span></td><td>the structured error function</td></tr><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the functions context</td></tr></tbody></table></div></div>
 259         <hr/>
 260         <div class="refsect2" lang="en"><h3><a name="xmlSchemaSetValidErrors"/>xmlSchemaSetValidErrors ()</h3><pre class="programlisting">void  xmlSchemaSetValidErrors         (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   <a href="libxml2-xmlschemas.html#xmlSchemaValidityErrorFunc">xmlSchemaValidityErrorFunc</a> err, <br/>                                  <a href="libxml2-xmlschemas.html#xmlSchemaValidityWarningFunc">xmlSchemaValidityWarningFunc</a> warn, <br/>                                     void * ctx)<br/>
 261 </pre><p>Set the error and warning callback informations</p>
 262 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>err</tt></i>:</span></td><td>the error function</td></tr><tr><td><span class="term"><i><tt>warn</tt></i>:</span></td><td>the warning function</td></tr><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the functions context</td></tr></tbody></table></div></div>
 263         <hr/>
 264         <div class="refsect2" lang="en"><h3><a name="xmlSchemaSetValidOptions"/>xmlSchemaSetValidOptions ()</h3><pre class="programlisting">int xmlSchemaSetValidOptions        (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   int options)<br/>
 265 </pre><p>Sets the options to be used during the validation.</p>
 266 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>options</tt></i>:</span></td><td>a combination of <a href="libxml2-xmlschemas.html#xmlSchemaValidOption">xmlSchemaValidOption</a></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of an API error.</td></tr></tbody></table></div></div>
 267         <hr/>
 268         <div class="refsect2" lang="en"><h3><a name="xmlSchemaSetValidStructuredErrors"/>xmlSchemaSetValidStructuredErrors ()</h3><pre class="programlisting">void      xmlSchemaSetValidStructuredErrors       (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                           <a href="libxml2-xmlerror.html#xmlStructuredErrorFunc">xmlStructuredErrorFunc</a> serror, <br/>                                                 void * ctx)<br/>
 269 </pre><p>Set the structured error callback</p>
 270 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>serror</tt></i>:</span></td><td>the structured error function</td></tr><tr><td><span class="term"><i><tt>ctx</tt></i>:</span></td><td>the functions context</td></tr></tbody></table></div></div>
 271         <hr/>
 272         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidCtxtGetOptions"/>xmlSchemaValidCtxtGetOptions ()</h3><pre class="programlisting">int xmlSchemaValidCtxtGetOptions    (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt)<br/>
 273 </pre><p>Get the validation context options.</p>
 274 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the option combination or -1 on error.</td></tr></tbody></table></div></div>
 275         <hr/>
 276         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidCtxtGetParserCtxt"/>xmlSchemaValidCtxtGetParserCtxt ()</h3><pre class="programlisting"><a href="libxml2-tree.html#xmlParserCtxtPtr">xmlParserCtxtPtr</a>     xmlSchemaValidCtxtGetParserCtxt (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt)<br/>
 277 </pre><p>allow access to the parser context of the schema validation context</p>
 278 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the parser context of the schema validation context or NULL in case of error.</td></tr></tbody></table></div></div>
 279         <hr/>
 280         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidateDoc"/>xmlSchemaValidateDoc ()</h3><pre class="programlisting">int xmlSchemaValidateDoc            (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   <a href="libxml2-tree.html#xmlDocPtr">xmlDocPtr</a> doc)<br/>
 281 </pre><p>Validate a document tree in memory.</p>
 282 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>doc</tt></i>:</span></td><td>a parsed document tree</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the document is schemas valid, a positive error code number otherwise and -1 in case of internal or API error.</td></tr></tbody></table></div></div>
 283         <hr/>
 284         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidateFile"/>xmlSchemaValidateFile ()</h3><pre class="programlisting">int       xmlSchemaValidateFile           (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   const char * filename, <br/>                                    int options)<br/>
 285 </pre><p>Do a schemas validation of the given resource, it will use the SAX streamable validation internally.</p>
 286 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>filename</tt></i>:</span></td><td>the URI of the instance</td></tr><tr><td><span class="term"><i><tt>options</tt></i>:</span></td><td>a future set of options, currently unused</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the document is valid, a positive error code number otherwise and -1 in case of an internal or API error.</td></tr></tbody></table></div></div>
 287         <hr/>
 288         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidateOneElement"/>xmlSchemaValidateOneElement ()</h3><pre class="programlisting">int   xmlSchemaValidateOneElement     (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   <a href="libxml2-tree.html#xmlNodePtr">xmlNodePtr</a> elem)<br/>
 289 </pre><p>Validate a branch of a tree, starting with the given @elem.</p>
 290 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>elem</tt></i>:</span></td><td>an element node</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the element and its subtree is valid, a positive error code number otherwise and -1 in case of an internal or API error.</td></tr></tbody></table></div></div>
 291         <hr/>
 292         <div class="refsect2" lang="en"><h3><a name="xmlSchemaValidateStream"/>xmlSchemaValidateStream ()</h3><pre class="programlisting">int   xmlSchemaValidateStream         (<a href="libxml2-xmlschemas.html#xmlSchemaValidCtxtPtr">xmlSchemaValidCtxtPtr</a> ctxt, <br/>                                   <a href="libxml2-tree.html#xmlParserInputBufferPtr">xmlParserInputBufferPtr</a> input, <br/>                                    <a href="libxml2-encoding.html#xmlCharEncoding">xmlCharEncoding</a> enc, <br/>                                  <a href="libxml2-tree.html#xmlSAXHandlerPtr">xmlSAXHandlerPtr</a> sax, <br/>                                    void * user_data)<br/>
 293 </pre><p>Validate an input based on a flow of SAX event from the parser and forward the events to the @sax handler with the provided @user_data the user provided @sax handler must be a SAX2 one.</p>
 294 <div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>input</tt></i>:</span></td><td>the input to use for reading the data</td></tr><tr><td><span class="term"><i><tt>enc</tt></i>:</span></td><td>an optional encoding information</td></tr><tr><td><span class="term"><i><tt>sax</tt></i>:</span></td><td>a SAX handler for the resulting events</td></tr><tr><td><span class="term"><i><tt>user_data</tt></i>:</span></td><td>the context to provide to the SAX handler.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the document is schemas valid, a positive error code number otherwise and -1 in case of internal or API error.</td></tr></tbody></table></div></div>
 295         <hr/>
 296       </div>
 297     </div>
 298   </body>
 299 </html>