# The XSLT C library for Gnome

## Module pattern from libxslt

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the implementation of the lookup of the right template for a given node must be really fast in order to keep decent performances.

## Table of Contents

    Structure xsltCompMatch
    struct _xsltCompMatch
    The content of this structure is not made public by the API.

    Typedef xsltCompMatch * xsltCompMatchPtr

    int	xsltAddTemplate			(xsltStylesheetPtr style,
    					 xsltTemplatePtr cur,
    					 const xmlChar * mode,
    					 const xmlChar * modeURI)

    void	xsltCleanupTemplates		(xsltStylesheetPtr style)

    xsltCompMatchPtr	xsltCompilePattern	(const xmlChar * pattern,
    						 xmlDocPtr doc,
    						 xmlNodePtr node,
    						 xsltStylesheetPtr style,
    						 xsltTransformContextPtr runtime)

    void	xsltFreeCompMatchList		(xsltCompMatchPtr comp)

    void	xsltFreeTemplateHashes		(xsltStylesheetPtr style)

    xsltTemplatePtr	xsltGetTemplate		(xsltTransformContextPtr ctxt,
    					 xmlNodePtr node,
    					 xsltStylesheetPtr style)

    int	xsltMatchPattern		(xsltTransformContextPtr ctxt,
    					 xmlNodePtr node,
    					 const xmlChar * pattern,
    					 xmlDocPtr ctxtdoc,
    					 xmlNodePtr ctxtnode)

    void	xsltNormalizeCompSteps		(void * payload,
    					 void * data,
    					 const xmlChar * name)

    int	xsltTestCompMatchList		(xsltTransformContextPtr ctxt,
    					 xmlNodePtr node,
    					 xsltCompMatchPtr comp)

## Description

### Structure xsltCompMatch

    Structure xsltCompMatch
    struct _xsltCompMatch {
    The content of this structure is not made public by the API.
    }

### Function: xsltAddTemplate

    int	xsltAddTemplate			(xsltStylesheetPtr style,
    					 xsltTemplatePtr cur,
    					 const xmlChar * mode,
    					 const xmlChar * modeURI)

Register the XSLT pattern associated to @cur

`style`: | an XSLT stylesheet
`cur`: | an XSLT template
`mode`: | the mode name or NULL
`modeURI`: | the mode URI or NULL
`Returns`: | -1 in case of error, 0 otherwise

### Function: xsltCleanupTemplates

    void	xsltCleanupTemplates		(xsltStylesheetPtr style)

Cleanup the state of the templates used by the stylesheet and the ones it imports.

`style`: | an XSLT stylesheet

### Function: xsltCompilePattern

    xsltCompMatchPtr	xsltCompilePattern	(const xmlChar * pattern,
    						 xmlDocPtr doc,
    						 xmlNodePtr node,
    						 xsltStylesheetPtr style,
    						 xsltTransformContextPtr runtime)

Compile the XSLT pattern and generates a list of precompiled form suitable for fast matching. [1] Pattern ::= LocationPathPattern | Pattern '|' LocationPathPattern

`pattern`: | an XSLT pattern
`doc`: | the containing document
`node`: | the containing element
`style`: | the stylesheet
`runtime`: | the transformation context, if done at run-time
`Returns`: | the generated pattern list or NULL in case of failure

### Function: xsltFreeCompMatchList

    void	xsltFreeCompMatchList		(xsltCompMatchPtr comp)

Free up the memory allocated by all the elements of @comp

`comp`: | an XSLT comp list

### Function: xsltFreeTemplateHashes

    void	xsltFreeTemplateHashes		(xsltStylesheetPtr style)

Free up the memory used by xsltAddTemplate/xsltGetTemplate mechanism

`style`: | an XSLT stylesheet

### Function: xsltGetTemplate

    xsltTemplatePtr	xsltGetTemplate		(xsltTransformContextPtr ctxt,
    					 xmlNodePtr node,
    					 xsltStylesheetPtr style)

Finds the template applying to this node, if @style is non-NULL it means one needs to look for the next imported template in scope.

`ctxt`: | a XSLT process context
`node`: | the node being processed
`style`: | the current style
`Returns`: | the xsltTemplatePtr or NULL if not found

### Function: xsltMatchPattern

    int	xsltMatchPattern		(xsltTransformContextPtr ctxt,
    					 xmlNodePtr node,
    					 const xmlChar * pattern,
    					 xmlDocPtr ctxtdoc,
    					 xmlNodePtr ctxtnode)

`ctxt`: |
`node`: |
`pattern`: |
`ctxtdoc`: |
`ctxtnode`: |
`Returns`: |

### Function: xsltNormalizeCompSteps

    void	xsltNormalizeCompSteps		(void * payload,
    					 void * data,
    					 const xmlChar * name)

This is a hashtable scanner function to normalize the compiled steps of an imported stylesheet.

`payload`: | pointer to template hash table entry
`data`: | pointer to the stylesheet
`name`: | template match name

### Function: xsltTestCompMatchList

    int	xsltTestCompMatchList		(xsltTransformContextPtr ctxt,
    					 xmlNodePtr node,
    					 xsltCompMatchPtr comp)

Test wether the node matches one of the patterns in the list

`ctxt`: | a XSLT process context
`node`: | a node
`comp`: | the precompiled pattern list
`Returns`: | 1 if it matches, 0 if it doesn't and -1 in case of failure

Daniel Veillard