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  31       </style><link rel="home" href="index.html" title="Gnome XSLT Library Reference Manual"><link rel="up" href="libxslt-lib.html" title="Libxslt Library Reference"><link rel="previous" href="libxslt-namespaces.html" title="namespaces"><link rel="next" href="libxslt-keys.html" title="keys"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="libxslt-namespaces.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></img></a></td><td><a accesskey="u" href="libxslt-lib.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></img></a></td><td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></img></a></td><th width="100%" align="center">Gnome XSLT Library Reference Manual</th><td><a accesskey="n" href="libxslt-keys.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></img></a></td></tr></table><div class="refentry" lang="en"><a name="libxslt-variables"></a><div class="titlepage"></div><div class="refnamediv"><h2>variables</h2><p>variables &#8212; </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
  32
  33
  34
  35 #define     <a href="libxslt-variables.html#XSLT-REGISTER-VARIABLE-LOOKUP-CAPS">XSLT_REGISTER_VARIABLE_LOOKUP</a>   (ctxt)
  36 int         <a href="libxslt-variables.html#xsltEvalGlobalVariables">xsltEvalGlobalVariables</a>         (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt);
  37 int         <a href="libxslt-variables.html#xsltEvalUserParams">xsltEvalUserParams</a>              (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  38                                              const char **params);
  39 int         <a href="libxslt-variables.html#xsltQuoteUserParams">xsltQuoteUserParams</a>             (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  40                                              const char **params);
  41 int         <a href="libxslt-variables.html#xsltEvalOneUserParam">xsltEvalOneUserParam</a>            (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  42                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *name,
  43                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *value);
  44 int         <a href="libxslt-variables.html#xsltQuoteOneUserParam">xsltQuoteOneUserParam</a>           (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  45                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *name,
  46                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *value);
  47 void        <a href="libxslt-variables.html#xsltParseGlobalVariable">xsltParseGlobalVariable</a>         (<a href="libxslt-xsltInternals.html#xsltStylesheetPtr">xsltStylesheetPtr</a> style,
  48                                              <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlNodePtr">xmlNodePtr</GTKDOCLINK> cur);
  49 void        <a href="libxslt-variables.html#xsltParseGlobalParam">xsltParseGlobalParam</a>            (<a href="libxslt-xsltInternals.html#xsltStylesheetPtr">xsltStylesheetPtr</a> style,
  50                                              <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlNodePtr">xmlNodePtr</GTKDOCLINK> cur);
  51 void        <a href="libxslt-variables.html#xsltParseStylesheetVariable">xsltParseStylesheetVariable</a>     (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  52                                              <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlNodePtr">xmlNodePtr</GTKDOCLINK> cur);
  53 void        <a href="libxslt-variables.html#xsltParseStylesheetParam">xsltParseStylesheetParam</a>        (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  54                                              <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlNodePtr">xmlNodePtr</GTKDOCLINK> cur);
  55 <a href="libxslt-xsltInternals.html#xsltStackElemPtr">xsltStackElemPtr</a> <a href="libxslt-variables.html#xsltParseStylesheetCallerParam">xsltParseStylesheetCallerParam</a>
  56                                             (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  57                                              <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlNodePtr">xmlNodePtr</GTKDOCLINK> cur);
  58 int         <a href="libxslt-variables.html#xsltAddStackElemList">xsltAddStackElemList</a>            (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  59                                              <a href="libxslt-xsltInternals.html#xsltStackElemPtr">xsltStackElemPtr</a> elems);
  60 void        <a href="libxslt-variables.html#xsltFreeGlobalVariables">xsltFreeGlobalVariables</a>         (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt);
  61 <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlXPathObjectPtr">xmlXPathObjectPtr</GTKDOCLINK> <a href="libxslt-variables.html#xsltVariableLookup">xsltVariableLookup</a>        (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  62                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *name,
  63                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *ns_uri);
  64 <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlXPathObjectPtr">xmlXPathObjectPtr</GTKDOCLINK> <a href="libxslt-variables.html#xsltXPathVariableLookup">xsltXPathVariableLookup</a>   (void *ctxt,
  65                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *name,
  66                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *ns_uri);
  67 </pre></div><div class="refsect1" lang="en"><h2>Description</h2><p>
  68
  69 </p></div><div class="refsect1" lang="en"><h2>Details</h2><div class="refsect2" lang="en"><h3><a name="XSLT-REGISTER-VARIABLE-LOOKUP-CAPS"></a>XSLT_REGISTER_VARIABLE_LOOKUP()</h3><pre class="programlisting">#define     XSLT_REGISTER_VARIABLE_LOOKUP(ctxt)</pre><p>
  70 Registering macro, not general purpose at all but used in different modules.</p><p>
  71
  72 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>
  73
  74
  75 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltEvalGlobalVariables"></a>xsltEvalGlobalVariables ()</h3><pre class="programlisting">int         xsltEvalGlobalVariables         (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt);</pre><p>
  76 Evaluate the global variables of a stylesheet. This need to be
  77 done on parsed stylesheets before starting to apply transformations</p><p>
  78
  79 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XSLT transformation context
  80 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
  81 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltEvalUserParams"></a>xsltEvalUserParams ()</h3><pre class="programlisting">int         xsltEvalUserParams              (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  82                                              const char **params);</pre><p>
  83 <i><tt>ctxt</tt></i>:  the XSLT transformation context
  84 <i><tt>params</tt></i>:  a NULL terminated array of parameters name/value tuples
  85 </p><p>
  86 Evaluate the global variables of a stylesheet. This needs to be
  87 done on parsed stylesheets before starting to apply transformations.
  88 Each of the parameters is evaluated as an XPath expression and stored
  89 in the global variables/parameter hash table.  If you want your
  90 parameter used literally, use xsltQuoteUserParams.</p><p>
  91
  92 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>
  93 </td></tr><tr><td><span class="term"><i><tt>params</tt></i> :</span></td><td>
  94 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
  95 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltQuoteUserParams"></a>xsltQuoteUserParams ()</h3><pre class="programlisting">int         xsltQuoteUserParams             (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
  96                                              const char **params);</pre><p>
  97 <i><tt>ctxt</tt></i>:  the XSLT transformation context
  98 <i><tt>params</tt></i>:  a NULL terminated arry of parameters names/values tuples
  99 </p><p>
 100 Similar to xsltEvalUserParams, but the values are treated literally and
 101 are * *not* evaluated as XPath expressions. This should be done on parsed
 102 stylesheets before starting to apply transformations.</p><p>
 103
 104 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>
 105 </td></tr><tr><td><span class="term"><i><tt>params</tt></i> :</span></td><td>
 106 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error.
 107 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltEvalOneUserParam"></a>xsltEvalOneUserParam ()</h3><pre class="programlisting">int         xsltEvalOneUserParam            (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
 108                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *name,
 109                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *value);</pre><p>
 110 This is normally called from xsltEvalUserParams to process a single
 111 parameter from a list of parameters.  The <i><tt>value</tt></i> is evaluated as an
 112 XPath expression and the result is stored in the context's global
 113 variable/parameter hash table.
 114 </p><p>
 115 To have a parameter treated literally (not as an XPath expression)
 116 use xsltQuoteUserParams (or xsltQuoteOneUserParam).  For more
 117 details see description of xsltProcessOneUserParamInternal.</p><p>
 118
 119 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XSLT transformation context
 120 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  a null terminated string giving the name of the parameter
 121 </td></tr><tr><td><span class="term"><i><tt>value</tt></i> :</span></td><td>  a null terminated string giving the XPath expression to be evaluated
 122 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error.
 123 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltQuoteOneUserParam"></a>xsltQuoteOneUserParam ()</h3><pre class="programlisting">int         xsltQuoteOneUserParam           (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
 124                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *name,
 125                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *value);</pre><p>
 126 This is normally called from xsltQuoteUserParams to process a single
 127 parameter from a list of parameters.  The <i><tt>value</tt></i> is stored in the
 128 context's global variable/parameter hash table.</p><p>
 129
 130 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XSLT transformation context
 131 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  a null terminated string giving the name of the parameter
 132 </td></tr><tr><td><span class="term"><i><tt>value</tt></i> :</span></td><td>  a null terminated string giving the parameter value
 133 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error.
 134 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltParseGlobalVariable"></a>xsltParseGlobalVariable ()</h3><pre class="programlisting">void        xsltParseGlobalVariable         (<a href="libxslt-xsltInternals.html#xsltStylesheetPtr">xsltStylesheetPtr</a> style,
 135                                              <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlNodePtr">xmlNodePtr</GTKDOCLINK> cur);</pre><p>
 136 parse an XSLT transformation variable declaration and record
 137 its value.</p><p>
 138
 139 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>style</tt></i> :</span></td><td>  the XSLT stylesheet
 140 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the "variable" element
 141 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltParseGlobalParam"></a>xsltParseGlobalParam ()</h3><pre class="programlisting">void        xsltParseGlobalParam            (<a href="libxslt-xsltInternals.html#xsltStylesheetPtr">xsltStylesheetPtr</a> style,
 142                                              <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlNodePtr">xmlNodePtr</GTKDOCLINK> cur);</pre><p>
 143 parse an XSLT transformation param declaration and record
 144 its value.</p><p>
 145
 146 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>style</tt></i> :</span></td><td>  the XSLT stylesheet
 147 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the "param" element
 148 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltParseStylesheetVariable"></a>xsltParseStylesheetVariable ()</h3><pre class="programlisting">void        xsltParseStylesheetVariable     (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
 149                                              <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlNodePtr">xmlNodePtr</GTKDOCLINK> cur);</pre><p>
 150 parse an XSLT transformation variable declaration and record
 151 its value.</p><p>
 152
 153 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XSLT transformation context
 154 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the "variable" element
 155 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltParseStylesheetParam"></a>xsltParseStylesheetParam ()</h3><pre class="programlisting">void        xsltParseStylesheetParam        (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
 156                                              <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlNodePtr">xmlNodePtr</GTKDOCLINK> cur);</pre><p>
 157 parse an XSLT transformation param declaration and record
 158 its value.</p><p>
 159
 160 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XSLT transformation context
 161 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the "param" element
 162 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltParseStylesheetCallerParam"></a>xsltParseStylesheetCallerParam ()</h3><pre class="programlisting"><a href="libxslt-xsltInternals.html#xsltStackElemPtr">xsltStackElemPtr</a> xsltParseStylesheetCallerParam
 163                                             (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
 164                                              <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlNodePtr">xmlNodePtr</GTKDOCLINK> cur);</pre><p>
 165 parse an XSLT transformation param declaration, compute
 166 its value but doesn't record it.</p><p>
 167
 168 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XSLT transformation context
 169 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the "param" element
 170 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the new xsltStackElemPtr or NULL
 171 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltAddStackElemList"></a>xsltAddStackElemList ()</h3><pre class="programlisting">int         xsltAddStackElemList            (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
 172                                              <a href="libxslt-xsltInternals.html#xsltStackElemPtr">xsltStackElemPtr</a> elems);</pre><p>
 173 add the new element list at this level of the stack.</p><p>
 174
 175 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  xn XSLT transformation context
 176 </td></tr><tr><td><span class="term"><i><tt>elems</tt></i> :</span></td><td>  a stack element list
 177 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of failure.
 178 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltFreeGlobalVariables"></a>xsltFreeGlobalVariables ()</h3><pre class="programlisting">void        xsltFreeGlobalVariables         (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt);</pre><p>
 179 Free up the data associated to the global variables
 180 its value.</p><p>
 181
 182 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XSLT transformation context
 183 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltVariableLookup"></a>xsltVariableLookup ()</h3><pre class="programlisting"><GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlXPathObjectPtr">xmlXPathObjectPtr</GTKDOCLINK> xsltVariableLookup        (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt,
 184                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *name,
 185                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *ns_uri);</pre><p>
 186 Search in the Variable array of the context for the given
 187 variable value.</p><p>
 188
 189 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XSLT transformation context
 190 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the variable name
 191 </td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the variable namespace URI
 192 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the value or NULL if not found
 193 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xsltXPathVariableLookup"></a>xsltXPathVariableLookup ()</h3><pre class="programlisting"><GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlXPathObjectPtr">xmlXPathObjectPtr</GTKDOCLINK> xsltXPathVariableLookup   (void *ctxt,
 194                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *name,
 195                                              const <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="xmlChar">xmlChar</GTKDOCLINK> *ns_uri);</pre><p>
 196 This is the entry point when a varibale is needed by the XPath
 197 interpretor.</p><p>
 198
 199 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  a void * but the the XSLT transformation context actually
 200 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the variable name
 201 </td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the variable namespace URI
 202 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the value or NULL if not found
 203 </td></tr></tbody></table></div></div></div></div><table xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="0"><tr valign="middle"><td align="left"><a accesskey="p" href="libxslt-namespaces.html"><b>&lt;&lt; namespaces</b></a></td><td align="right"><a accesskey="n" href="libxslt-keys.html"><b>keys &gt;&gt;</b></a></td></tr></table></body></html>