root/third_party/libxslt/libxslt/extensions.h

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INCLUDED FROM


/*
 * Summary: interface for the extension support
 * Description: This provide the API needed for simple and module
 *              extension support.
 *
 * Copy: See Copyright for the status of this software.
 *
 * Author: Daniel Veillard
 */

#ifndef __XML_XSLT_EXTENSION_H__
#define __XML_XSLT_EXTENSION_H__

#include <libxml/xpath.h>
#include "xsltexports.h"
#include "xsltInternals.h"

#ifdef __cplusplus
extern "C" {
#endif

/**
 * Extension Modules API.
 */

/**
 * xsltInitGlobals:
 *
 * Initialize the global variables for extensions
 *
 */

XSLTPUBFUN void XSLTCALL
                xsltInitGlobals                 (void);

/**
 * xsltStyleExtInitFunction:
 * @ctxt:  an XSLT stylesheet
 * @URI:  the namespace URI for the extension
 *
 * A function called at initialization time of an XSLT extension module.
 *
 * Returns a pointer to the module specific data for this transformation.
 */
typedef void * (*xsltStyleExtInitFunction)      (xsltStylesheetPtr style,
                                                 const xmlChar *URI);

/**
 * xsltStyleExtShutdownFunction:
 * @ctxt:  an XSLT stylesheet
 * @URI:  the namespace URI for the extension
 * @data:  the data associated to this module
 *
 * A function called at shutdown time of an XSLT extension module.
 */
typedef void (*xsltStyleExtShutdownFunction)    (xsltStylesheetPtr style,
                                                 const xmlChar *URI,
                                                 void *data);

/**
 * xsltExtInitFunction:
 * @ctxt:  an XSLT transformation context
 * @URI:  the namespace URI for the extension
 *
 * A function called at initialization time of an XSLT extension module.
 *
 * Returns a pointer to the module specific data for this transformation.
 */
typedef void * (*xsltExtInitFunction)   (xsltTransformContextPtr ctxt,
                                         const xmlChar *URI);

/**
 * xsltExtShutdownFunction:
 * @ctxt:  an XSLT transformation context
 * @URI:  the namespace URI for the extension
 * @data:  the data associated to this module
 *
 * A function called at shutdown time of an XSLT extension module.
 */
typedef void (*xsltExtShutdownFunction) (xsltTransformContextPtr ctxt,
                                         const xmlChar *URI,
                                         void *data);

XSLTPUBFUN int XSLTCALL
                xsltRegisterExtModule   (const xmlChar *URI,
                                         xsltExtInitFunction initFunc,
                                         xsltExtShutdownFunction shutdownFunc);
XSLTPUBFUN int XSLTCALL
                xsltRegisterExtModuleFull
                                        (const xmlChar * URI,
                                         xsltExtInitFunction initFunc,
                                         xsltExtShutdownFunction shutdownFunc,
                                         xsltStyleExtInitFunction styleInitFunc,
                                         xsltStyleExtShutdownFunction styleShutdownFunc);

XSLTPUBFUN int XSLTCALL
                xsltUnregisterExtModule (const xmlChar * URI);

XSLTPUBFUN void * XSLTCALL
                xsltGetExtData          (xsltTransformContextPtr ctxt,
                                         const xmlChar *URI);

XSLTPUBFUN void * XSLTCALL
                xsltStyleGetExtData     (xsltStylesheetPtr style,
                                         const xmlChar *URI);
#ifdef XSLT_REFACTORED
XSLTPUBFUN void * XSLTCALL
                xsltStyleStylesheetLevelGetExtData(
                                         xsltStylesheetPtr style,
                                         const xmlChar * URI);
#endif
XSLTPUBFUN void XSLTCALL
                xsltShutdownCtxtExts    (xsltTransformContextPtr ctxt);

XSLTPUBFUN void XSLTCALL
                xsltShutdownExts        (xsltStylesheetPtr style);

XSLTPUBFUN xsltTransformContextPtr XSLTCALL
                xsltXPathGetTransformContext
                                        (xmlXPathParserContextPtr ctxt);

/*
 * extension functions
*/
XSLTPUBFUN int XSLTCALL
                xsltRegisterExtModuleFunction
                                        (const xmlChar *name,
                                         const xmlChar *URI,
                                         xmlXPathFunction function);
XSLTPUBFUN xmlXPathFunction XSLTCALL
        xsltExtModuleFunctionLookup     (const xmlChar *name,
                                         const xmlChar *URI);
XSLTPUBFUN int XSLTCALL
                xsltUnregisterExtModuleFunction
                                        (const xmlChar *name,
                                         const xmlChar *URI);

/*
 * extension elements
 */
typedef xsltElemPreCompPtr (*xsltPreComputeFunction)
                                        (xsltStylesheetPtr style,
                                         xmlNodePtr inst,
                                         xsltTransformFunction function);

XSLTPUBFUN xsltElemPreCompPtr XSLTCALL
                xsltNewElemPreComp      (xsltStylesheetPtr style,
                                         xmlNodePtr inst,
                                         xsltTransformFunction function);
XSLTPUBFUN void XSLTCALL
                xsltInitElemPreComp     (xsltElemPreCompPtr comp,
                                         xsltStylesheetPtr style,
                                         xmlNodePtr inst,
                                         xsltTransformFunction function,
                                         xsltElemPreCompDeallocator freeFunc);

XSLTPUBFUN int XSLTCALL
                xsltRegisterExtModuleElement
                                        (const xmlChar *name,
                                         const xmlChar *URI,
                                         xsltPreComputeFunction precomp,
                                         xsltTransformFunction transform);
XSLTPUBFUN xsltTransformFunction XSLTCALL
                xsltExtElementLookup    (xsltTransformContextPtr ctxt,
                                         const xmlChar *name,
                                         const xmlChar *URI);
XSLTPUBFUN xsltTransformFunction XSLTCALL
                xsltExtModuleElementLookup
                                        (const xmlChar *name,
                                         const xmlChar *URI);
XSLTPUBFUN xsltPreComputeFunction XSLTCALL
                xsltExtModuleElementPreComputeLookup
                                        (const xmlChar *name,
                                         const xmlChar *URI);
XSLTPUBFUN int XSLTCALL
                xsltUnregisterExtModuleElement
                                        (const xmlChar *name,
                                         const xmlChar *URI);

/*
 * top-level elements
 */
typedef void (*xsltTopLevelFunction)    (xsltStylesheetPtr style,
                                         xmlNodePtr inst);

XSLTPUBFUN int XSLTCALL
                xsltRegisterExtModuleTopLevel
                                        (const xmlChar *name,
                                         const xmlChar *URI,
                                         xsltTopLevelFunction function);
XSLTPUBFUN xsltTopLevelFunction XSLTCALL
                xsltExtModuleTopLevelLookup
                                        (const xmlChar *name,
                                         const xmlChar *URI);
XSLTPUBFUN int XSLTCALL
                xsltUnregisterExtModuleTopLevel
                                        (const xmlChar *name,
                                         const xmlChar *URI);


/* These 2 functions are deprecated for use within modules. */
XSLTPUBFUN int XSLTCALL
                xsltRegisterExtFunction (xsltTransformContextPtr ctxt,
                                         const xmlChar *name,
                                         const xmlChar *URI,
                                         xmlXPathFunction function);
XSLTPUBFUN int XSLTCALL
                xsltRegisterExtElement  (xsltTransformContextPtr ctxt,
                                         const xmlChar *name,
                                         const xmlChar *URI,
                                         xsltTransformFunction function);

/*
 * Extension Prefix handling API.
 * Those are used by the XSLT (pre)processor.
 */

XSLTPUBFUN int XSLTCALL
                xsltRegisterExtPrefix   (xsltStylesheetPtr style,
                                         const xmlChar *prefix,
                                         const xmlChar *URI);
XSLTPUBFUN int XSLTCALL
                xsltCheckExtPrefix      (xsltStylesheetPtr style,
                                         const xmlChar *URI);
XSLTPUBFUN int XSLTCALL
                xsltCheckExtURI         (xsltStylesheetPtr style,
                                         const xmlChar *URI);
XSLTPUBFUN int XSLTCALL
                xsltInitCtxtExts        (xsltTransformContextPtr ctxt);
XSLTPUBFUN void XSLTCALL
                xsltFreeCtxtExts        (xsltTransformContextPtr ctxt);
XSLTPUBFUN void XSLTCALL
                xsltFreeExts            (xsltStylesheetPtr style);

XSLTPUBFUN xsltElemPreCompPtr XSLTCALL
                xsltPreComputeExtModuleElement
                                        (xsltStylesheetPtr style,
                                         xmlNodePtr inst);
/*
 * Extension Infos access.
 * Used by exslt initialisation
 */

XSLTPUBFUN xmlHashTablePtr XSLTCALL
                xsltGetExtInfo          (xsltStylesheetPtr style,
                                         const xmlChar *URI);

/**
 * Test module http://xmlsoft.org/XSLT/
 */
XSLTPUBFUN void XSLTCALL
                xsltRegisterTestModule  (void);
XSLTPUBFUN void XSLTCALL
                xsltDebugDumpExtensions (FILE * output);


#ifdef __cplusplus
}
#endif

#endif /* __XML_XSLT_EXTENSION_H__ */


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