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Diffstat (limited to 'plugins/variables/libxslt/xsltInternals.h')
-rw-r--r-- | plugins/variables/libxslt/xsltInternals.h | 609 |
1 files changed, 609 insertions, 0 deletions
diff --git a/plugins/variables/libxslt/xsltInternals.h b/plugins/variables/libxslt/xsltInternals.h new file mode 100644 index 0000000000..d574e5997b --- /dev/null +++ b/plugins/variables/libxslt/xsltInternals.h @@ -0,0 +1,609 @@ +/* + * xsltInternals.h: internal data structures, constants and functions used + * by the XSLT engine. + * They are not part of the API or ABI, i.e. they can change + * without prior notice, use carefully. + * + * See Copyright for the status of this software. + * + * daniel@veillard.com + */ + +#ifndef __XML_XSLT_INTERNALS_H__ +#define __XML_XSLT_INTERNALS_H__ + +#include <libxml/tree.h> +#include <libxml/hash.h> +#include <libxml/xpath.h> +#include <libxml/xmlerror.h> +#include <libxslt/xslt.h> +#include "xsltexports.h" +#include "numbersInternals.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * XSLT_MAX_SORT: + * + * Max number of specified xsl:sort on an element. + */ +#define XSLT_MAX_SORT 15 + +/** + * XSLT_PAT_NO_PRIORITY: + * + * Specific value for pattern without priority expressed. + */ +#define XSLT_PAT_NO_PRIORITY -12345789 + +/** + * xsltRuntimeExtra: + * + * Extra information added to the transformation context. + */ +typedef struct _xsltRuntimeExtra xsltRuntimeExtra; +typedef xsltRuntimeExtra *xsltRuntimeExtraPtr; +struct _xsltRuntimeExtra { + void *info; /* pointer to the extra data */ + xmlFreeFunc deallocate; /* pointer to the deallocation routine */ + void *val; /* data not needing deallocation */ +}; + +/** + * XSLT_RUNTIME_EXTRA_LST: + * @ctxt: the transformation context + * @nr: the index + * + * Macro used to access extra information stored in the context + */ +#define XSLT_RUNTIME_EXTRA_LST(ctxt, nr) (ctxt)->extras[(nr)].info +/** + * XSLT_RUNTIME_EXTRA_FREE: + * @ctxt: the transformation context + * @nr: the index + * + * Macro used to free extra information stored in the context + */ +#define XSLT_RUNTIME_EXTRA_FREE(ctxt, nr) (ctxt)->extras[(nr)].deallocate +/** + * XSLT_RUNTIME_EXTRA: + * @ctxt: the transformation context + * @nr: the index + * + * Macro used to define extra information stored in the context + */ +#define XSLT_RUNTIME_EXTRA(ctxt, nr) (ctxt)->extras[(nr)].val + +/** + * xsltTemplate: + * + * The in-memory structure corresponding to an XSLT Template. + */ +typedef struct _xsltTemplate xsltTemplate; +typedef xsltTemplate *xsltTemplatePtr; +struct _xsltTemplate { + struct _xsltTemplate *next;/* chained list sorted by priority */ + struct _xsltStylesheet *style;/* the containing stylesheet */ + xmlChar *match; /* the matching string */ + float priority; /* as given from the stylesheet, not computed */ + xmlChar *name; /* the local part of the name QName */ + xmlChar *nameURI; /* the URI part of the name QName */ + xmlChar *mode; /* the local part of the mode QName */ + xmlChar *modeURI; /* the URI part of the mode QName */ + xmlNodePtr content; /* the template replacement value */ + xmlNodePtr elem; /* the source element */ + + int inheritedNsNr; /* number of inherited namespaces */ + xmlNsPtr *inheritedNs;/* inherited non-excluded namespaces */ + + /* Profiling informations */ + int nbCalls; /* the number of time the template was called */ + unsigned long time; /* the time spent in this template */ +}; + +/** + * xsltDecimalFormat: + * + * Data structure of decimal-format. + */ +typedef struct _xsltDecimalFormat xsltDecimalFormat; +typedef xsltDecimalFormat *xsltDecimalFormatPtr; +struct _xsltDecimalFormat { + struct _xsltDecimalFormat *next; /* chained list */ + xmlChar *name; + /* Used for interpretation of pattern */ + xmlChar *digit; + xmlChar *patternSeparator; + /* May appear in result */ + xmlChar *minusSign; + xmlChar *infinity; + xmlChar *noNumber; /* Not-a-number */ + /* Used for interpretation of pattern and may appear in result */ + xmlChar *decimalPoint; + xmlChar *grouping; + xmlChar *percent; + xmlChar *permille; + xmlChar *zeroDigit; +}; + +/** + * xsltDocument: + * + * Data structure associated to a parsed document. + */ + +typedef struct _xsltDocument xsltDocument; +typedef xsltDocument *xsltDocumentPtr; +struct _xsltDocument { + struct _xsltDocument *next; /* documents are kept in a chained list */ + int main; /* is this the main document */ + xmlDocPtr doc; /* the parsed document */ + void *keys; /* key tables storage */ +}; + +typedef struct _xsltTransformContext xsltTransformContext; +typedef xsltTransformContext *xsltTransformContextPtr; + +/** + * xsltElemPreComp: + * + * The in-memory structure corresponding to element precomputed data, + * designed to be extended by extension implementors. + */ +typedef struct _xsltElemPreComp xsltElemPreComp; +typedef xsltElemPreComp *xsltElemPreCompPtr; + +/** + * xsltTransformFunction: + * @ctxt: the XSLT transformation context + * @node: the input node + * @inst: the stylesheet node + * @comp: the compiled information from the stylesheet + * + * Signature of the function associated to elements part of the + * stylesheet language like xsl:if or xsl:apply-templates. + */ +typedef void (*xsltTransformFunction) (xsltTransformContextPtr ctxt, + xmlNodePtr node, + xmlNodePtr inst, + xsltElemPreCompPtr comp); + +/** + * xsltSortFunc: + * @ctxt: a transformation context + * @sorts: the node-set to sort + * @nbsorts: the number of sorts + * + * Signature of the function to use during sorting + */ +typedef void (*xsltSortFunc) (xsltTransformContextPtr ctxt, xmlNodePtr *sorts, + int nbsorts); + +typedef enum { + XSLT_FUNC_COPY=1, + XSLT_FUNC_SORT, + XSLT_FUNC_TEXT, + XSLT_FUNC_ELEMENT, + XSLT_FUNC_ATTRIBUTE, + XSLT_FUNC_COMMENT, + XSLT_FUNC_PI, + XSLT_FUNC_COPYOF, + XSLT_FUNC_VALUEOF, + XSLT_FUNC_NUMBER, + XSLT_FUNC_APPLYIMPORTS, + XSLT_FUNC_CALLTEMPLATE, + XSLT_FUNC_APPLYTEMPLATES, + XSLT_FUNC_CHOOSE, + XSLT_FUNC_IF, + XSLT_FUNC_FOREACH, + XSLT_FUNC_DOCUMENT, + XSLT_FUNC_WITHPARAM, + XSLT_FUNC_PARAM, + XSLT_FUNC_VARIABLE, + XSLT_FUNC_WHEN, + XSLT_FUNC_EXTENSION +} xsltStyleType; + +/** + * xsltElemPreCompDeallocator: + * @comp: the #xsltElemPreComp to free up + * + * Deallocates an #xsltElemPreComp structure. + */ +typedef void (*xsltElemPreCompDeallocator) (xsltElemPreCompPtr comp); + +/** + * xsltElemPreComp: + * + * The in-memory structure corresponding to element precomputed data, + * designed to be extended by extension implementors. + */ +struct _xsltElemPreComp { + xsltElemPreCompPtr next; /* chained list */ + xsltStyleType type; /* type of the element */ + xsltTransformFunction func; /* handling function */ + xmlNodePtr inst; /* the instruction */ + + /* end of common part */ + xsltElemPreCompDeallocator free; /* the deallocator */ +}; + +/** + * xsltStylePreComp: + * + * The in-memory structure corresponding to XSLT stylesheet constructs + * precomputed data. + */ +typedef struct _xsltStylePreComp xsltStylePreComp; + +typedef xsltStylePreComp *xsltStylePreCompPtr; + +struct _xsltStylePreComp { + xsltElemPreCompPtr next; /* chained list */ + xsltStyleType type; /* type of the element */ + xsltTransformFunction func; /* handling function */ + xmlNodePtr inst; /* the instruction */ + + /* + * Pre computed values. + */ + + xmlChar *stype; /* sort */ + int has_stype; /* sort */ + int number; /* sort */ + xmlChar *order; /* sort */ + int has_order; /* sort */ + int descending; /* sort */ + xmlChar *lang; /* sort */ + int has_lang; /* sort */ + xmlChar *case_order; /* sort */ + int lower_first; /* sort */ + + xmlChar *use; /* copy, element */ + int has_use; /* copy, element */ + + int noescape; /* text */ + + xmlChar *name; /* element, attribute, pi */ + int has_name; /* element, attribute, pi */ + xmlChar *ns; /* element */ + int has_ns; /* element */ + + xmlChar *mode; /* apply-templates */ + xmlChar *modeURI; /* apply-templates */ + + xmlChar *test; /* if */ + + xsltTemplatePtr templ; /* call-template */ + + xmlChar *select; /* sort, copy-of, value-of, apply-templates */ + + int ver11; /* document */ + xmlChar *filename; /* document URL */ + int has_filename; /* document */ + + xsltNumberData numdata; /* number */ + + xmlXPathCompExprPtr comp; /* a precompiled XPath expression */ + xmlNsPtr *nsList; /* the namespaces in scope */ + int nsNr; /* the number of namespaces in scope */ +}; + +/* + * The in-memory structure corresponding to an XSLT Variable + * or Param. + */ + +typedef struct _xsltStackElem xsltStackElem; +typedef xsltStackElem *xsltStackElemPtr; +struct _xsltStackElem { + struct _xsltStackElem *next;/* chained list */ + xsltStylePreCompPtr comp; /* the compiled form */ + int computed; /* was the evaluation done */ + xmlChar *name; /* the local part of the name QName */ + xmlChar *nameURI; /* the URI part of the name QName */ + xmlChar *select; /* the eval string */ + xmlNodePtr tree; /* the tree if no eval string or the location */ + xmlXPathObjectPtr value; /* The value if computed */ +}; + +/* + * The in-memory structure corresponding to an XSLT Stylesheet. + * NOTE: most of the content is simply linked from the doc tree + * structure, no specific allocation is made. + */ +typedef struct _xsltStylesheet xsltStylesheet; +typedef xsltStylesheet *xsltStylesheetPtr; +struct _xsltStylesheet { + /* + * The stylesheet import relation is kept as a tree. + */ + struct _xsltStylesheet *parent; + struct _xsltStylesheet *next; + struct _xsltStylesheet *imports; + + xsltDocumentPtr docList; /* the include document list */ + + /* + * General data on the style sheet document. + */ + xmlDocPtr doc; /* the parsed XML stylesheet */ + xmlHashTablePtr stripSpaces;/* the hash table of the strip-space and + preserve space elements */ + int stripAll; /* strip-space * (1) preserve-space * (-1) */ + xmlHashTablePtr cdataSection;/* the hash table of the cdata-section */ + + /* + * Global variable or parameters. + */ + xsltStackElemPtr variables; /* linked list of param and variables */ + + /* + * Template descriptions. + */ + xsltTemplatePtr templates; /* the ordered list of templates */ + void *templatesHash; /* hash table or wherever compiled templates + informations are stored */ + void *rootMatch; /* template based on / */ + void *keyMatch; /* template based on key() */ + void *elemMatch; /* template based on * */ + void *attrMatch; /* template based on @* */ + void *parentMatch; /* template based on .. */ + void *textMatch; /* template based on text() */ + void *piMatch; /* template based on processing-instruction() */ + void *commentMatch; /* template based on comment() */ + + /* + * Namespace aliases. + */ + xmlHashTablePtr nsAliases; /* the namespace alias hash tables */ + + /* + * Attribute sets. + */ + xmlHashTablePtr attributeSets;/* the attribute sets hash tables */ + + /* + * Namespaces. + */ + xmlHashTablePtr nsHash; /* the set of namespaces in use */ + void *nsDefs; /* the namespaces defined */ + + /* + * Key definitions. + */ + void *keys; /* key definitions */ + + /* + * Output related stuff. + */ + xmlChar *method; /* the output method */ + xmlChar *methodURI; /* associated namespace if any */ + xmlChar *version; /* version string */ + xmlChar *encoding; /* encoding string */ + int omitXmlDeclaration; /* omit-xml-declaration = "yes" | "no" */ + + /* + * Number formatting. + */ + xsltDecimalFormatPtr decimalFormat; + int standalone; /* standalone = "yes" | "no" */ + xmlChar *doctypePublic; /* doctype-public string */ + xmlChar *doctypeSystem; /* doctype-system string */ + int indent; /* should output being indented */ + xmlChar *mediaType; /* media-type string */ + + /* + * Precomputed blocks. + */ + xsltElemPreCompPtr preComps;/* list of precomputed blocks */ + int warnings; /* number of warnings found at compilation */ + int errors; /* number of errors found at compilation */ + + xmlChar *exclPrefix; /* last excluded prefixes */ + xmlChar **exclPrefixTab; /* array of excluded prefixes */ + int exclPrefixNr; /* number of excluded prefixes in scope */ + int exclPrefixMax; /* size of the array */ + + void *_private; /* user defined data */ + + /* + * Extensions. + */ + xmlHashTablePtr extInfos; /* the extension data */ + int extrasNr; /* the number of extras required */ +}; + +/* + * The in-memory structure corresponding to an XSLT Transformation. + */ +typedef enum { + XSLT_OUTPUT_XML = 0, + XSLT_OUTPUT_HTML, + XSLT_OUTPUT_TEXT +} xsltOutputType; + +typedef enum { + XSLT_STATE_OK = 0, + XSLT_STATE_ERROR, + XSLT_STATE_STOPPED +} xsltTransformState; + +struct _xsltTransformContext { + xsltStylesheetPtr style; /* the stylesheet used */ + xsltOutputType type; /* the type of output */ + + xsltTemplatePtr templ; /* the current template */ + int templNr; /* Nb of templates in the stack */ + int templMax; /* Size of the templtes stack */ + xsltTemplatePtr *templTab; /* the template stack */ + + xsltStackElemPtr vars; /* the current variable list */ + int varsNr; /* Nb of variable list in the stack */ + int varsMax; /* Size of the variable list stack */ + xsltStackElemPtr *varsTab; /* the variable list stack */ + int varsBase; /* the var base for current templ */ + + /* + * Extensions + */ + xmlHashTablePtr extFunctions; /* the extension functions */ + xmlHashTablePtr extElements; /* the extension elements */ + xmlHashTablePtr extInfos; /* the extension data */ + + const xmlChar *mode; /* the current mode */ + const xmlChar *modeURI; /* the current mode URI */ + + xsltDocumentPtr docList; /* the document list */ + + xsltDocumentPtr document; /* the current document */ + xmlNodePtr node; /* the current node being processed */ + xmlNodeSetPtr nodeList; /* the current node list */ + /* xmlNodePtr current; the node */ + + xmlDocPtr output; /* the resulting document */ + xmlNodePtr insert; /* the insertion node */ + + xmlXPathContextPtr xpathCtxt; /* the XPath context */ + xsltTransformState state; /* the current state */ + + /* + * Global variables + */ + xmlHashTablePtr globalVars; /* the global variables and params */ + + xmlNodePtr inst; /* the instruction in the stylesheet */ + + int xinclude; /* should XInclude be processed */ + + const char * outputFile; /* the output URI if known */ + + int profile; /* is this run profiled */ + long prof; /* the current profiled value */ + int profNr; /* Nb of templates in the stack */ + int profMax; /* Size of the templtaes stack */ + long *profTab; /* the profile template stack */ + + void *_private; /* user defined data */ + + int extrasNr; /* the number of extras used */ + int extrasMax; /* the number of extras allocated */ + xsltRuntimeExtraPtr extras; /* extra per runtime informations */ + + xsltDocumentPtr styleList; /* the stylesheet docs list */ + void * sec; /* the security preferences if any */ + + xmlGenericErrorFunc error; /* a specific error handler */ + void * errctx; /* context for the error handler */ + + xsltSortFunc sortfunc; /* a ctxt specific sort routine */ + + /* + * handling of temporary Result Value Tree + */ + xmlDocPtr tmpRVT; /* list of RVT without persistance */ + xmlDocPtr persistRVT; /* list of persistant RVTs */ + int ctxtflags; /* context processing flags */ + + /* + * Speed optimization when coalescing text nodes + */ + const xmlChar *lasttext; /* last text node content */ + unsigned int lasttsize; /* last text node size */ + unsigned int lasttuse; /* last text node use */ +}; + +/** + * CHECK_STOPPED: + * + * Macro to check if the XSLT processing should be stopped. + * Will return from the function. + */ +#define CHECK_STOPPED if (ctxt->state == XSLT_STATE_STOPPED) return; + +/** + * CHECK_STOPPEDE: + * + * Macro to check if the XSLT processing should be stopped. + * Will goto the error: label. + */ +#define CHECK_STOPPEDE if (ctxt->state == XSLT_STATE_STOPPED) goto error; + +/** + * CHECK_STOPPED0: + * + * Macro to check if the XSLT processing should be stopped. + * Will return from the function with a 0 value. + */ +#define CHECK_STOPPED0 if (ctxt->state == XSLT_STATE_STOPPED) return(0); + +/* + * Functions associated to the internal types +xsltDecimalFormatPtr xsltDecimalFormatGetByName(xsltStylesheetPtr sheet, + xmlChar *name); + */ +XSLTPUBFUN xsltStylesheetPtr XSLTCALL + xsltNewStylesheet (void); +XSLTPUBFUN xsltStylesheetPtr XSLTCALL + xsltParseStylesheetFile (const xmlChar* filename); +XSLTPUBFUN void XSLTCALL + xsltFreeStylesheet (xsltStylesheetPtr sheet); +XSLTPUBFUN int XSLTCALL + xsltIsBlank (xmlChar *str); +XSLTPUBFUN void XSLTCALL + xsltFreeStackElemList (xsltStackElemPtr elem); +XSLTPUBFUN xsltDecimalFormatPtr XSLTCALL + xsltDecimalFormatGetByName(xsltStylesheetPtr sheet, + xmlChar *name); + +XSLTPUBFUN xsltStylesheetPtr XSLTCALL + xsltParseStylesheetProcess(xsltStylesheetPtr ret, + xmlDocPtr doc); +XSLTPUBFUN void XSLTCALL + xsltParseStylesheetOutput(xsltStylesheetPtr style, + xmlNodePtr cur); +XSLTPUBFUN xsltStylesheetPtr XSLTCALL + xsltParseStylesheetDoc (xmlDocPtr doc); +XSLTPUBFUN xsltStylesheetPtr XSLTCALL + xsltParseStylesheetImportedDoc(xmlDocPtr doc); +XSLTPUBFUN xsltStylesheetPtr XSLTCALL + xsltLoadStylesheetPI (xmlDocPtr doc); +XSLTPUBFUN void XSLTCALL + xsltNumberFormat (xsltTransformContextPtr ctxt, + xsltNumberDataPtr data, + xmlNodePtr node); +XSLTPUBFUN xmlXPathError XSLTCALL + xsltFormatNumberConversion(xsltDecimalFormatPtr self, + xmlChar *format, + double number, + xmlChar **result); + +XSLTPUBFUN void XSLTCALL + xsltParseTemplateContent(xsltStylesheetPtr style, + xmlNodePtr templ); +XSLTPUBFUN int XSLTCALL + xsltAllocateExtra (xsltStylesheetPtr style); +XSLTPUBFUN int XSLTCALL + xsltAllocateExtraCtxt (xsltTransformContextPtr ctxt); +/* + * Extra functions for Result Value Trees + */ +XSLTPUBFUN xmlDocPtr XSLTCALL + xsltCreateRVT (xsltTransformContextPtr ctxt); +XSLTPUBFUN int XSLTCALL + xsltRegisterTmpRVT (xsltTransformContextPtr ctxt, + xmlDocPtr RVT); +XSLTPUBFUN int XSLTCALL + xsltRegisterPersistRVT (xsltTransformContextPtr ctxt, + xmlDocPtr RVT); +XSLTPUBFUN void XSLTCALL + xsltFreeRVTs (xsltTransformContextPtr ctxt); + +#ifdef __cplusplus +} +#endif + +#endif /* __XML_XSLT_H__ */ + |