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//opt/xslt/share/doc/libxslt-1.1.28/html/html/libxslt-variables.html
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><style type="text/css"> TD {font-family: Verdana,Arial,Helvetica} BODY {font-family: Verdana,Arial,Helvetica; margin-top: 2em; margin-left: 0em; margin-right: 0em} H1 {font-family: Verdana,Arial,Helvetica} H2 {font-family: Verdana,Arial,Helvetica} H3 {font-family: Verdana,Arial,Helvetica} A:link, A:visited, A:active { text-decoration: underline } </style><title>Module variables from libxslt</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000"><table border="0" width="100%" cellpadding="5" cellspacing="0" align="center"><tr><td width="120"><a href="http://swpat.ffii.org/"><img src="../epatents.png" alt="Action against software patents" /></a></td><td width="180"><a 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href="libxslt-transform.html">transform</a></th><td><a accesskey="u" href="index.html"><img src="up.png" width="24" height="24" border="0" alt="Up" /></a></td><th align="left"><a href="index.html">API documentation</a></th><td><a accesskey="h" href="../index.html"><img src="home.png" width="24" height="24" border="0" alt="Home" /></a></td><th align="center"><a href="../index.html">Home</a></th><th align="right"><a href="libxslt-xslt.html">xslt</a></th><td><a accesskey="n" href="libxslt-xslt.html"><img src="right.png" width="24" height="24" border="0" alt="Next" /></a></td></tr></table><p>interface for the variable matching and lookup. </p><h2>Table of Contents</h2><pre class="programlisting">#define <a href="#XSLT_REGISTER_VARIABLE_LOOKUP">XSLT_REGISTER_VARIABLE_LOOKUP</a></pre><pre class="programlisting">int <a href="#xsltAddStackElemList">xsltAddStackElemList</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> <a href="libxslt-xsltInternals.html#xsltStackElemPtr">xsltStackElemPtr</a> elems)</pre> <pre class="programlisting">int <a href="#xsltEvalGlobalVariables">xsltEvalGlobalVariables</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt)</pre> <pre class="programlisting">int <a href="#xsltEvalOneUserParam">xsltEvalOneUserParam</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> const xmlChar * name, <br /> const xmlChar * value)</pre> <pre class="programlisting">int <a href="#xsltEvalUserParams">xsltEvalUserParams</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> const char ** params)</pre> <pre class="programlisting">void <a href="#xsltFreeGlobalVariables">xsltFreeGlobalVariables</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt)</pre> <pre class="programlisting">void <a href="#xsltParseGlobalParam">xsltParseGlobalParam</a> (<a href="libxslt-xsltInternals.html#xsltStylesheetPtr">xsltStylesheetPtr</a> style, <br /> xmlNodePtr cur)</pre> <pre class="programlisting">void <a href="#xsltParseGlobalVariable">xsltParseGlobalVariable</a> (<a href="libxslt-xsltInternals.html#xsltStylesheetPtr">xsltStylesheetPtr</a> style, <br /> xmlNodePtr cur)</pre> <pre class="programlisting"><a href="libxslt-xsltInternals.html#xsltStackElemPtr">xsltStackElemPtr</a> <a href="#xsltParseStylesheetCallerParam">xsltParseStylesheetCallerParam</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> xmlNodePtr inst)</pre> <pre class="programlisting">void <a href="#xsltParseStylesheetParam">xsltParseStylesheetParam</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> xmlNodePtr cur)</pre> <pre class="programlisting">void <a href="#xsltParseStylesheetVariable">xsltParseStylesheetVariable</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> xmlNodePtr inst)</pre> <pre class="programlisting">int <a href="#xsltQuoteOneUserParam">xsltQuoteOneUserParam</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> const xmlChar * name, <br /> const xmlChar * value)</pre> <pre class="programlisting">int <a href="#xsltQuoteUserParams">xsltQuoteUserParams</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> const char ** params)</pre> <pre class="programlisting">xmlXPathObjectPtr <a href="#xsltVariableLookup">xsltVariableLookup</a> (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> const xmlChar * name, <br /> const xmlChar * ns_uri)</pre> <pre class="programlisting">xmlXPathObjectPtr <a href="#xsltXPathVariableLookup">xsltXPathVariableLookup</a> (void * ctxt, <br /> const xmlChar * name, <br /> const xmlChar * ns_uri)</pre> <h2>Description</h2> <h3><a name="XSLT_REGISTER_VARIABLE_LOOKUP" id="XSLT_REGISTER_VARIABLE_LOOKUP"></a>Macro: XSLT_REGISTER_VARIABLE_LOOKUP</h3><pre>#define XSLT_REGISTER_VARIABLE_LOOKUP</pre><p>Registering macro, not general purpose at all but used in different modules.</p> <h3><a name="xsltAddStackElemList" id="xsltAddStackElemList"></a>Function: xsltAddStackElemList</h3><pre class="programlisting">int xsltAddStackElemList (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> <a href="libxslt-xsltInternals.html#xsltStackElemPtr">xsltStackElemPtr</a> elems)<br /> </pre><p>Push an element list onto the stack.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>xn XSLT transformation context</td></tr><tr><td><span class="term"><i><tt>elems</tt></i>:</span></td><td>a stack element list</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="xsltEvalGlobalVariables" id="xsltEvalGlobalVariables"></a>Function: xsltEvalGlobalVariables</h3><pre class="programlisting">int xsltEvalGlobalVariables (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt)<br /> </pre><p>Evaluates all global variables and parameters of a stylesheet. For internal use only. This is called at start of a transformation.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XSLT transformation context</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="xsltEvalOneUserParam" id="xsltEvalOneUserParam"></a>Function: xsltEvalOneUserParam</h3><pre class="programlisting">int xsltEvalOneUserParam (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> const xmlChar * name, <br /> const xmlChar * value)<br /> </pre><p>This is normally called from <a href="libxslt-variables.html#xsltEvalUserParams">xsltEvalUserParams</a> to process a single parameter from a list of parameters. The @value is evaluated as an XPath expression and the result is stored in the context's global variable/parameter hash table. To have a parameter treated literally (not as an XPath expression) use <a href="libxslt-variables.html#xsltQuoteUserParams">xsltQuoteUserParams</a> (or xsltQuoteOneUserParam). For more details see description of xsltProcessOneUserParamInternal.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XSLT transformation context</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</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</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error.</td></tr></tbody></table></div><h3><a name="xsltEvalUserParams" id="xsltEvalUserParams"></a>Function: xsltEvalUserParams</h3><pre class="programlisting">int xsltEvalUserParams (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> const char ** params)<br /> </pre><p>Evaluate the global variables of a stylesheet. This needs to be done on parsed stylesheets before starting to apply transformations. Each of the parameters is evaluated as an XPath expression and stored in the global variables/parameter hash table. If you want your parameter used literally, use xsltQuoteUserParams.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XSLT transformation context</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>a NULL terminated array of parameters name/value tuples</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="xsltFreeGlobalVariables" id="xsltFreeGlobalVariables"></a>Function: xsltFreeGlobalVariables</h3><pre class="programlisting">void xsltFreeGlobalVariables (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt)<br /> </pre><p>Free up the data associated to the global variables its value.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XSLT transformation context</td></tr></tbody></table></div><h3><a name="xsltParseGlobalParam" id="xsltParseGlobalParam"></a>Function: xsltParseGlobalParam</h3><pre class="programlisting">void xsltParseGlobalParam (<a href="libxslt-xsltInternals.html#xsltStylesheetPtr">xsltStylesheetPtr</a> style, <br /> xmlNodePtr cur)<br /> </pre><p>parse an XSLT transformation param declaration and record its value.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>style</tt></i>:</span></td><td>the XSLT stylesheet</td></tr><tr><td><span class="term"><i><tt>cur</tt></i>:</span></td><td>the "param" element</td></tr></tbody></table></div><h3><a name="xsltParseGlobalVariable" id="xsltParseGlobalVariable"></a>Function: xsltParseGlobalVariable</h3><pre class="programlisting">void xsltParseGlobalVariable (<a href="libxslt-xsltInternals.html#xsltStylesheetPtr">xsltStylesheetPtr</a> style, <br /> xmlNodePtr cur)<br /> </pre><p>Parses a global XSLT 'variable' declaration at compilation time and registers it</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>style</tt></i>:</span></td><td>the XSLT stylesheet</td></tr><tr><td><span class="term"><i><tt>cur</tt></i>:</span></td><td>the "variable" element</td></tr></tbody></table></div><h3><a name="xsltParseStylesheetCallerParam" id="xsltParseStylesheetCallerParam"></a>Function: xsltParseStylesheetCallerParam</h3><pre class="programlisting"><a href="libxslt-xsltInternals.html#xsltStackElemPtr">xsltStackElemPtr</a> xsltParseStylesheetCallerParam (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> xmlNodePtr inst)<br /> </pre><p>Processes an xsl:with-param instruction at transformation time. The value is compute, but not recorded. NOTE that this is also called with an *xsl:param* element from exsltFuncFunctionFunction().</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XSLT transformation context</td></tr><tr><td><span class="term"><i><tt>inst</tt></i>:</span></td><td>the xsl:with-param instruction element</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new <a href="libxslt-xsltInternals.html#xsltStackElemPtr">xsltStackElemPtr</a> or NULL</td></tr></tbody></table></div><h3><a name="xsltParseStylesheetParam" id="xsltParseStylesheetParam"></a>Function: xsltParseStylesheetParam</h3><pre class="programlisting">void xsltParseStylesheetParam (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> xmlNodePtr cur)<br /> </pre><p>Registers a local XSLT 'param' declaration at transformation time and evaluates its value.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XSLT transformation context</td></tr><tr><td><span class="term"><i><tt>cur</tt></i>:</span></td><td>the XSLT 'param' element</td></tr></tbody></table></div><h3><a name="xsltParseStylesheetVariable" id="xsltParseStylesheetVariable"></a>Function: xsltParseStylesheetVariable</h3><pre class="programlisting">void xsltParseStylesheetVariable (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> xmlNodePtr inst)<br /> </pre><p>Registers a local XSLT 'variable' instruction at transformation time and evaluates its value.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XSLT transformation context</td></tr><tr><td><span class="term"><i><tt>inst</tt></i>:</span></td><td>the xsl:variable instruction element</td></tr></tbody></table></div><h3><a name="xsltQuoteOneUserParam" id="xsltQuoteOneUserParam"></a>Function: xsltQuoteOneUserParam</h3><pre class="programlisting">int xsltQuoteOneUserParam (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> const xmlChar * name, <br /> const xmlChar * value)<br /> </pre><p>This is normally called from <a href="libxslt-variables.html#xsltQuoteUserParams">xsltQuoteUserParams</a> to process a single parameter from a list of parameters. The @value is stored in the context's global variable/parameter hash table.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XSLT transformation context</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</td></tr><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>a null terminated string giving the parameter value</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error.</td></tr></tbody></table></div><h3><a name="xsltQuoteUserParams" id="xsltQuoteUserParams"></a>Function: xsltQuoteUserParams</h3><pre class="programlisting">int xsltQuoteUserParams (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> const char ** params)<br /> </pre><p>Similar to xsltEvalUserParams, but the values are treated literally and are * *not* evaluated as XPath expressions. This should be done on parsed stylesheets before starting to apply transformations.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XSLT transformation context</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>a NULL terminated arry of parameters names/values tuples</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error.</td></tr></tbody></table></div><h3><a name="xsltVariableLookup" id="xsltVariableLookup"></a>Function: xsltVariableLookup</h3><pre class="programlisting">xmlXPathObjectPtr xsltVariableLookup (<a href="libxslt-xsltInternals.html#xsltTransformContextPtr">xsltTransformContextPtr</a> ctxt, <br /> const xmlChar * name, <br /> const xmlChar * ns_uri)<br /> </pre><p>Search in the Variable array of the context for the given variable value.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XSLT transformation context</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the variable name</td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i>:</span></td><td>the variable namespace URI</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the value or NULL if not found</td></tr></tbody></table></div><h3><a name="xsltXPathVariableLookup" id="xsltXPathVariableLookup"></a>Function: xsltXPathVariableLookup</h3><pre class="programlisting">xmlXPathObjectPtr xsltXPathVariableLookup (void * ctxt, <br /> const xmlChar * name, <br /> const xmlChar * ns_uri)<br /> </pre><p>This is the entry point when a varibale is needed by the XPath interpretor.</p> <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a void * but the the XSLT transformation context actually</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>the variable name</td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i>:</span></td><td>the variable namespace URI</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the value or NULL if not found</td></tr></tbody></table></div><p><a href="../bugs.html">Daniel Veillard</a></p></td></tr></table></td></tr></table></td></tr></table></td></tr></table></td></tr></table></body></html>
