xsltutils.h

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/*
 * Summary: set of utilities for the XSLT engine
 * Description: interfaces for the utilities module of the XSLT engine.
 *              things like message handling, profiling, and other
 *              generally useful routines.
 *
 * Copy: See Copyright for the status of this software.
 *
 * Author: Daniel Veillard
 */

#ifndef __XML_XSLTUTILS_H__
#define __XML_XSLTUTILS_H__

#include <libxslt/xsltconfig.h>
#ifdef HAVE_STDARG_H
#include <stdarg.h>
#endif
#include <libxml/xpath.h>
#include <libxml/dict.h>
#include <libxml/xmlerror.h>
#include "xsltexports.h"
#include "xsltInternals.h"

#ifdef __cplusplus
extern "C" {
#endif

#define XSLT_TODO                           \
    xsltGenericError(xsltGenericErrorContext,               \
        "Unimplemented block at %s:%d\n",               \
            __FILE__, __LINE__);

#define XSLT_STRANGE                            \
    xsltGenericError(xsltGenericErrorContext,               \
        "Internal error at %s:%d\n",                \
            __FILE__, __LINE__);

#define IS_XSLT_ELEM(n)                         \
    (((n) != NULL) && ((n)->type == XML_ELEMENT_NODE) &&                \
     ((n)->ns != NULL) && (xmlStrEqual((n)->ns->href, XSLT_NAMESPACE)))

#define IS_XSLT_NAME(n, val)                        \
    (xmlStrEqual((n)->name, (const xmlChar *) (val)))

#define IS_XSLT_REAL_NODE(n)                        \
    (((n) != NULL) &&                           \
     (((n)->type == XML_ELEMENT_NODE) ||                \
      ((n)->type == XML_TEXT_NODE) ||                   \
      ((n)->type == XML_CDATA_SECTION_NODE) ||              \
      ((n)->type == XML_ATTRIBUTE_NODE) ||              \
      ((n)->type == XML_DOCUMENT_NODE) ||               \
      ((n)->type == XML_HTML_DOCUMENT_NODE) ||              \
      ((n)->type == XML_COMMENT_NODE) ||                \
      ((n)->type == XML_PI_NODE)))

/*
 * Our own version of namespaced atributes lookup.
 */
XSLTPUBFUN xmlChar * XSLTCALL
        xsltGetNsProp   (xmlNodePtr node,
                 const xmlChar *name,
                 const xmlChar *nameSpace);
XSLTPUBFUN const xmlChar * XSLTCALL
        xsltGetCNsProp  (xsltStylesheetPtr style,
                 xmlNodePtr node,
                 const xmlChar *name,
                 const xmlChar *nameSpace);
XSLTPUBFUN int XSLTCALL
        xsltGetUTF8Char (const unsigned char *utf,
                 int *len);

/*
 * XSLT Debug Tracing Tracing Types
 */
typedef enum {
    XSLT_TRACE_ALL =        -1,
    XSLT_TRACE_NONE =       0,
    XSLT_TRACE_COPY_TEXT =      1<<0,
    XSLT_TRACE_PROCESS_NODE =   1<<1,
    XSLT_TRACE_APPLY_TEMPLATE = 1<<2,
    XSLT_TRACE_COPY =       1<<3,
    XSLT_TRACE_COMMENT =        1<<4,
    XSLT_TRACE_PI =         1<<5,
    XSLT_TRACE_COPY_OF =        1<<6,
    XSLT_TRACE_VALUE_OF =       1<<7,
    XSLT_TRACE_CALL_TEMPLATE =  1<<8,
    XSLT_TRACE_APPLY_TEMPLATES =    1<<9,
    XSLT_TRACE_CHOOSE =     1<<10,
    XSLT_TRACE_IF =         1<<11,
    XSLT_TRACE_FOR_EACH =       1<<12,
    XSLT_TRACE_STRIP_SPACES =   1<<13,
    XSLT_TRACE_TEMPLATES =      1<<14,
    XSLT_TRACE_KEYS =       1<<15,
    XSLT_TRACE_VARIABLES =      1<<16
} xsltDebugTraceCodes;

#define XSLT_TRACE(ctxt,code,call)  \
    if (ctxt->traceCode && (*(ctxt->traceCode) & code)) \
        call

XSLTPUBFUN void XSLTCALL
        xsltDebugSetDefaultTrace(xsltDebugTraceCodes val);
XSLTPUBFUN xsltDebugTraceCodes XSLTCALL
        xsltDebugGetDefaultTrace(void);

/*
 * XSLT specific error and debug reporting functions.
 */
XSLTPUBVAR xmlGenericErrorFunc xsltGenericError;
XSLTPUBVAR void *xsltGenericErrorContext;
XSLTPUBVAR xmlGenericErrorFunc xsltGenericDebug;
XSLTPUBVAR void *xsltGenericDebugContext;

XSLTPUBFUN void XSLTCALL
        xsltPrintErrorContext       (xsltTransformContextPtr ctxt,
                                             xsltStylesheetPtr style,
                         xmlNodePtr node);
XSLTPUBFUN void XSLTCALL
        xsltMessage         (xsltTransformContextPtr ctxt,
                         xmlNodePtr node,
                         xmlNodePtr inst);
XSLTPUBFUN void XSLTCALL
        xsltSetGenericErrorFunc     (void *ctx,
                         xmlGenericErrorFunc handler);
XSLTPUBFUN void XSLTCALL
        xsltSetGenericDebugFunc     (void *ctx,
                         xmlGenericErrorFunc handler);
XSLTPUBFUN void XSLTCALL
        xsltSetTransformErrorFunc   (xsltTransformContextPtr ctxt,
                         void *ctx,
                         xmlGenericErrorFunc handler);
XSLTPUBFUN void XSLTCALL
        xsltTransformError      (xsltTransformContextPtr ctxt,
                         xsltStylesheetPtr style,
                         xmlNodePtr node,
                         const char *msg,
                         ...) LIBXSLT_ATTR_FORMAT(4,5);

XSLTPUBFUN int XSLTCALL
        xsltSetCtxtParseOptions     (xsltTransformContextPtr ctxt,
                         int options);
/*
 * Sorting.
 */

XSLTPUBFUN void XSLTCALL
        xsltDocumentSortFunction    (xmlNodeSetPtr list);
XSLTPUBFUN void XSLTCALL
        xsltSetSortFunc         (xsltSortFunc handler);
XSLTPUBFUN void XSLTCALL
        xsltSetCtxtSortFunc     (xsltTransformContextPtr ctxt,
                         xsltSortFunc handler);
XSLTPUBFUN void XSLTCALL
        xsltDefaultSortFunction     (xsltTransformContextPtr ctxt,
                         xmlNodePtr *sorts,
                         int nbsorts);
XSLTPUBFUN void XSLTCALL
        xsltDoSortFunction      (xsltTransformContextPtr ctxt,
                         xmlNodePtr * sorts,
                         int nbsorts);
XSLTPUBFUN xmlXPathObjectPtr * XSLTCALL
        xsltComputeSortResult       (xsltTransformContextPtr ctxt,
                         xmlNodePtr sort);

/*
 * QNames handling.
 */

XSLTPUBFUN const xmlChar * XSLTCALL
        xsltSplitQName          (xmlDictPtr dict,
                         const xmlChar *name,
                         const xmlChar **prefix);
XSLTPUBFUN const xmlChar * XSLTCALL
        xsltGetQNameURI         (xmlNodePtr node,
                         xmlChar **name);

XSLTPUBFUN const xmlChar * XSLTCALL
        xsltGetQNameURI2        (xsltStylesheetPtr style,
                         xmlNodePtr node,
                         const xmlChar **name);

/*
 * Output, reuse libxml I/O buffers.
 */
XSLTPUBFUN int XSLTCALL
        xsltSaveResultTo        (xmlOutputBufferPtr buf,
                         xmlDocPtr result,
                         xsltStylesheetPtr style);
XSLTPUBFUN int XSLTCALL
        xsltSaveResultToFilename    (const char *URI,
                         xmlDocPtr result,
                         xsltStylesheetPtr style,
                         int compression);
XSLTPUBFUN int XSLTCALL
        xsltSaveResultToFile        (FILE *file,
                         xmlDocPtr result,
                         xsltStylesheetPtr style);
XSLTPUBFUN int XSLTCALL
        xsltSaveResultToFd      (int fd,
                         xmlDocPtr result,
                         xsltStylesheetPtr style);
XSLTPUBFUN int XSLTCALL
        xsltSaveResultToString          (xmlChar **doc_txt_ptr,
                                                 int * doc_txt_len,
                                                 xmlDocPtr result,
                                                 xsltStylesheetPtr style);

/*
 * XPath interface
 */
XSLTPUBFUN xmlXPathCompExprPtr XSLTCALL
        xsltXPathCompile        (xsltStylesheetPtr style,
                         const xmlChar *str);
XSLTPUBFUN xmlXPathCompExprPtr XSLTCALL
        xsltXPathCompileFlags       (xsltStylesheetPtr style,
                         const xmlChar *str,
                         int flags);

/*
 * Profiling.
 */
XSLTPUBFUN void XSLTCALL
        xsltSaveProfiling       (xsltTransformContextPtr ctxt,
                         FILE *output);
XSLTPUBFUN xmlDocPtr XSLTCALL
        xsltGetProfileInformation   (xsltTransformContextPtr ctxt);

XSLTPUBFUN long XSLTCALL
        xsltTimestamp           (void);
XSLTPUBFUN void XSLTCALL
        xsltCalibrateAdjust     (long delta);

#define XSLT_TIMESTAMP_TICS_PER_SEC 100000l

/*
 * Hooks for the debugger.
 */

typedef enum {
    XSLT_DEBUG_NONE = 0, /* no debugging allowed */
    XSLT_DEBUG_INIT,
    XSLT_DEBUG_STEP,
    XSLT_DEBUG_STEPOUT,
    XSLT_DEBUG_NEXT,
    XSLT_DEBUG_STOP,
    XSLT_DEBUG_CONT,
    XSLT_DEBUG_RUN,
    XSLT_DEBUG_RUN_RESTART,
    XSLT_DEBUG_QUIT
} xsltDebugStatusCodes;

XSLTPUBVAR int xslDebugStatus;

typedef void (*xsltHandleDebuggerCallback) (xmlNodePtr cur, xmlNodePtr node,
            xsltTemplatePtr templ, xsltTransformContextPtr ctxt);
typedef int (*xsltAddCallCallback) (xsltTemplatePtr templ, xmlNodePtr source);
typedef void (*xsltDropCallCallback) (void);

XSLTPUBFUN void XSLTCALL
        xsltSetDebuggerStatus       (int value);
XSLTPUBFUN int XSLTCALL
        xsltGetDebuggerStatus       (void);
XSLTPUBFUN int XSLTCALL
        xsltSetDebuggerCallbacks    (int no, void *block);
XSLTPUBFUN int XSLTCALL
        xslAddCall          (xsltTemplatePtr templ,
                         xmlNodePtr source);
XSLTPUBFUN void XSLTCALL
        xslDropCall         (void);

#ifdef __cplusplus
}
#endif

#endif /* __XML_XSLTUTILS_H__ */