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reactos/dll/3rdparty/libxslt/transform.c
Amine Khaldi 527f2f9057 [SHELL/EXPERIMENTS] 
* Create a branch for some evul shell experiments.

svn path=/branches/shell-experiments/; revision=61927
2014-02-02 19:37:27 +00:00

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/*
* transform.c: Implementation of the XSL Transformation 1.0 engine
* transform part, i.e. applying a Stylesheet to a document
*
* References:
* http://www.w3.org/TR/1999/REC-xslt-19991116
*
* Michael Kay "XSLT Programmer's Reference" pp 637-643
* Writing Multiple Output Files
*
* XSLT-1.1 Working Draft
* http://www.w3.org/TR/xslt11#multiple-output
*
* See Copyright for the status of this software.
*
* daniel@veillard.com
*/
#include "precomp.h"
#include <libxml/debugXML.h>
#ifdef WITH_XSLT_DEBUG
#define WITH_XSLT_DEBUG_EXTRA
#define WITH_XSLT_DEBUG_PROCESS
#endif
#define XSLT_GENERATE_HTML_DOCTYPE
#ifdef XSLT_GENERATE_HTML_DOCTYPE
static int xsltGetHTMLIDs(const xmlChar *version, const xmlChar **publicID,
const xmlChar **systemID);
#endif
int xsltMaxDepth = 3000;
int xsltMaxVars = 15000;
/*
* Useful macros
*/
#ifndef FALSE
# define FALSE (0 == 1)
# define TRUE (!FALSE)
#endif
#define IS_BLANK_NODE(n) \
(((n)->type == XML_TEXT_NODE) && (xsltIsBlank((n)->content)))
/*
* Forward declarations
*/
static xmlNsPtr
xsltCopyNamespaceListInternal(xmlNodePtr node, xmlNsPtr cur);
static xmlNodePtr
xsltCopyTreeInternal(xsltTransformContextPtr ctxt,
xmlNodePtr invocNode,
xmlNodePtr node,
xmlNodePtr insert, int isLRE, int topElemVisited);
static void
xsltApplySequenceConstructor(xsltTransformContextPtr ctxt,
xmlNodePtr contextNode, xmlNodePtr list,
xsltTemplatePtr templ);
static void
xsltApplyXSLTTemplate(xsltTransformContextPtr ctxt,
xmlNodePtr contextNode,
xmlNodePtr list,
xsltTemplatePtr templ,
xsltStackElemPtr withParams);
/**
* templPush:
* @ctxt: the transformation context
* @value: the template to push on the stack
*
* Push a template on the stack
*
* Returns the new index in the stack or 0 in case of error
*/
static int
templPush(xsltTransformContextPtr ctxt, xsltTemplatePtr value)
{
if (ctxt->templMax == 0) {
ctxt->templMax = 4;
ctxt->templTab =
(xsltTemplatePtr *) xmlMalloc(ctxt->templMax *
sizeof(ctxt->templTab[0]));
if (ctxt->templTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "malloc failed !\n");
return (0);
}
}
else if (ctxt->templNr >= ctxt->templMax) {
ctxt->templMax *= 2;
ctxt->templTab =
(xsltTemplatePtr *) xmlRealloc(ctxt->templTab,
ctxt->templMax *
sizeof(ctxt->templTab[0]));
if (ctxt->templTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "realloc failed !\n");
return (0);
}
}
ctxt->templTab[ctxt->templNr] = value;
ctxt->templ = value;
return (ctxt->templNr++);
}
/**
* templPop:
* @ctxt: the transformation context
*
* Pop a template value from the stack
*
* Returns the stored template value
*/
static xsltTemplatePtr
templPop(xsltTransformContextPtr ctxt)
{
xsltTemplatePtr ret;
if (ctxt->templNr <= 0)
return (0);
ctxt->templNr--;
if (ctxt->templNr > 0)
ctxt->templ = ctxt->templTab[ctxt->templNr - 1];
else
ctxt->templ = (xsltTemplatePtr) 0;
ret = ctxt->templTab[ctxt->templNr];
ctxt->templTab[ctxt->templNr] = 0;
return (ret);
}
/**
* xsltLocalVariablePop:
* @ctxt: the transformation context
* @limitNr: number of variables which should remain
* @level: the depth in the xsl:template's tree
*
* Pops all variable values at the given @depth from the stack.
*
* Returns the stored variable value
* **NOTE:**
* This is an internal routine and should not be called by users!
*/
void
xsltLocalVariablePop(xsltTransformContextPtr ctxt, int limitNr, int level)
{
xsltStackElemPtr variable;
if (ctxt->varsNr <= 0)
return;
do {
if (ctxt->varsNr <= limitNr)
break;
variable = ctxt->varsTab[ctxt->varsNr - 1];
if (variable->level <= level)
break;
if (variable->level >= 0)
xsltFreeStackElemList(variable);
ctxt->varsNr--;
} while (ctxt->varsNr != 0);
if (ctxt->varsNr > 0)
ctxt->vars = ctxt->varsTab[ctxt->varsNr - 1];
else
ctxt->vars = NULL;
}
/**
* xsltTemplateParamsCleanup:
*
* Removes xsl:param and xsl:with-param items from the
* variable-stack. Only xsl:with-param items are not freed.
*/
static void
xsltTemplateParamsCleanup(xsltTransformContextPtr ctxt)
{
xsltStackElemPtr param;
for (; ctxt->varsNr > ctxt->varsBase; ctxt->varsNr--) {
param = ctxt->varsTab[ctxt->varsNr -1];
/*
* Free xsl:param items.
* xsl:with-param items will have a level of -1 or -2.
*/
if (param->level >= 0) {
xsltFreeStackElemList(param);
}
}
if (ctxt->varsNr > 0)
ctxt->vars = ctxt->varsTab[ctxt->varsNr - 1];
else
ctxt->vars = NULL;
}
/**
* profPush:
* @ctxt: the transformation context
* @value: the profiling value to push on the stack
*
* Push a profiling value on the stack
*
* Returns the new index in the stack or 0 in case of error
*/
static int
profPush(xsltTransformContextPtr ctxt, long value)
{
if (ctxt->profMax == 0) {
ctxt->profMax = 4;
ctxt->profTab =
(long *) xmlMalloc(ctxt->profMax * sizeof(ctxt->profTab[0]));
if (ctxt->profTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "malloc failed !\n");
return (0);
}
}
else if (ctxt->profNr >= ctxt->profMax) {
ctxt->profMax *= 2;
ctxt->profTab =
(long *) xmlRealloc(ctxt->profTab,
ctxt->profMax * sizeof(ctxt->profTab[0]));
if (ctxt->profTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "realloc failed !\n");
return (0);
}
}
ctxt->profTab[ctxt->profNr] = value;
ctxt->prof = value;
return (ctxt->profNr++);
}
/**
* profPop:
* @ctxt: the transformation context
*
* Pop a profiling value from the stack
*
* Returns the stored profiling value
*/
static long
profPop(xsltTransformContextPtr ctxt)
{
long ret;
if (ctxt->profNr <= 0)
return (0);
ctxt->profNr--;
if (ctxt->profNr > 0)
ctxt->prof = ctxt->profTab[ctxt->profNr - 1];
else
ctxt->prof = (long) 0;
ret = ctxt->profTab[ctxt->profNr];
ctxt->profTab[ctxt->profNr] = 0;
return (ret);
}
static void
profCallgraphAdd(xsltTemplatePtr templ, xsltTemplatePtr parent)
{
int i;
if (templ->templMax == 0) {
templ->templMax = 4;
templ->templCalledTab =
(xsltTemplatePtr *) xmlMalloc(templ->templMax *
sizeof(templ->templCalledTab[0]));
templ->templCountTab =
(int *) xmlMalloc(templ->templMax *
sizeof(templ->templCountTab[0]));
if (templ->templCalledTab == NULL || templ->templCountTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "malloc failed !\n");
return;
}
}
else if (templ->templNr >= templ->templMax) {
templ->templMax *= 2;
templ->templCalledTab =
(xsltTemplatePtr *) xmlRealloc(templ->templCalledTab,
templ->templMax *
sizeof(templ->templCalledTab[0]));
templ->templCountTab =
(int *) xmlRealloc(templ->templCountTab,
templ->templMax *
sizeof(templ->templCountTab[0]));
if (templ->templCalledTab == NULL || templ->templCountTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "realloc failed !\n");
return;
}
}
for (i = 0; i < templ->templNr; i++) {
if (templ->templCalledTab[i] == parent) {
templ->templCountTab[i]++;
break;
}
}
if (i == templ->templNr) {
/* not found, add new one */
templ->templCalledTab[templ->templNr] = parent;
templ->templCountTab[templ->templNr] = 1;
templ->templNr++;
}
}
/************************************************************************
* *
* XInclude default settings *
* *
************************************************************************/
static int xsltDoXIncludeDefault = 0;
/**
* xsltSetXIncludeDefault:
* @xinclude: whether to do XInclude processing
*
* Set whether XInclude should be processed on document being loaded by default
*/
void
xsltSetXIncludeDefault(int xinclude) {
xsltDoXIncludeDefault = (xinclude != 0);
}
/**
* xsltGetXIncludeDefault:
*
* Provides the default state for XInclude processing
*
* Returns 0 if there is no processing 1 otherwise
*/
int
xsltGetXIncludeDefault(void) {
return(xsltDoXIncludeDefault);
}
unsigned long xsltDefaultTrace = (unsigned long) XSLT_TRACE_ALL;
/**
* xsltDebugSetDefaultTrace:
* @val: tracing level mask
*
* Set the default debug tracing level mask
*/
void xsltDebugSetDefaultTrace(xsltDebugTraceCodes val) {
xsltDefaultTrace = val;
}
/**
* xsltDebugGetDefaultTrace:
*
* Get the current default debug tracing level mask
*
* Returns the current default debug tracing level mask
*/
xsltDebugTraceCodes xsltDebugGetDefaultTrace() {
return xsltDefaultTrace;
}
/************************************************************************
* *
* Handling of Transformation Contexts *
* *
************************************************************************/
static xsltTransformCachePtr
xsltTransformCacheCreate(void)
{
xsltTransformCachePtr ret;
ret = (xsltTransformCachePtr) xmlMalloc(sizeof(xsltTransformCache));
if (ret == NULL) {
xsltTransformError(NULL, NULL, NULL,
"xsltTransformCacheCreate : malloc failed\n");
return(NULL);
}
memset(ret, 0, sizeof(xsltTransformCache));
return(ret);
}
static void
xsltTransformCacheFree(xsltTransformCachePtr cache)
{
if (cache == NULL)
return;
/*
* Free tree fragments.
*/
if (cache->RVT) {
xmlDocPtr tmp, cur = cache->RVT;
while (cur) {
tmp = cur;
cur = (xmlDocPtr) cur->next;
if (tmp->_private != NULL) {
/*
* Tree the document info.
*/
xsltFreeDocumentKeys((xsltDocumentPtr) tmp->_private);
xmlFree(tmp->_private);
}
xmlFreeDoc(tmp);
}
}
/*
* Free vars/params.
*/
if (cache->stackItems) {
xsltStackElemPtr tmp, cur = cache->stackItems;
while (cur) {
tmp = cur;
cur = cur->next;
/*
* REVISIT TODO: Should be call a destruction-function
* instead?
*/
xmlFree(tmp);
}
}
xmlFree(cache);
}
/**
* xsltNewTransformContext:
* @style: a parsed XSLT stylesheet
* @doc: the input document
*
* Create a new XSLT TransformContext
*
* Returns the newly allocated xsltTransformContextPtr or NULL in case of error
*/
xsltTransformContextPtr
xsltNewTransformContext(xsltStylesheetPtr style, xmlDocPtr doc) {
xsltTransformContextPtr cur;
xsltDocumentPtr docu;
int i;
xsltInitGlobals();
cur = (xsltTransformContextPtr) xmlMalloc(sizeof(xsltTransformContext));
if (cur == NULL) {
xsltTransformError(NULL, NULL, (xmlNodePtr)doc,
"xsltNewTransformContext : malloc failed\n");
return(NULL);
}
memset(cur, 0, sizeof(xsltTransformContext));
cur->cache = xsltTransformCacheCreate();
if (cur->cache == NULL)
goto internal_err;
/*
* setup of the dictionary must be done early as some of the
* processing later like key handling may need it.
*/
cur->dict = xmlDictCreateSub(style->dict);
cur->internalized = ((style->internalized) && (cur->dict != NULL));
#ifdef WITH_XSLT_DEBUG
xsltGenericDebug(xsltGenericDebugContext,
"Creating sub-dictionary from stylesheet for transformation\n");
#endif
/*
* initialize the template stack
*/
cur->templTab = (xsltTemplatePtr *)
xmlMalloc(10 * sizeof(xsltTemplatePtr));
if (cur->templTab == NULL) {
xsltTransformError(NULL, NULL, (xmlNodePtr) doc,
"xsltNewTransformContext: out of memory\n");
goto internal_err;
}
cur->templNr = 0;
cur->templMax = 5;
cur->templ = NULL;
cur->maxTemplateDepth = xsltMaxDepth;
/*
* initialize the variables stack
*/
cur->varsTab = (xsltStackElemPtr *)
xmlMalloc(10 * sizeof(xsltStackElemPtr));
if (cur->varsTab == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xsltNewTransformContext: out of memory\n");
goto internal_err;
}
cur->varsNr = 0;
cur->varsMax = 10;
cur->vars = NULL;
cur->varsBase = 0;
cur->maxTemplateVars = xsltMaxVars;
/*
* the profiling stack is not initialized by default
*/
cur->profTab = NULL;
cur->profNr = 0;
cur->profMax = 0;
cur->prof = 0;
cur->style = style;
xmlXPathInit();
cur->xpathCtxt = xmlXPathNewContext(doc);
if (cur->xpathCtxt == NULL) {
xsltTransformError(NULL, NULL, (xmlNodePtr) doc,
"xsltNewTransformContext : xmlXPathNewContext failed\n");
goto internal_err;
}
/*
* Create an XPath cache.
*/
if (xmlXPathContextSetCache(cur->xpathCtxt, 1, -1, 0) == -1)
goto internal_err;
/*
* Initialize the extras array
*/
if (style->extrasNr != 0) {
cur->extrasMax = style->extrasNr + 20;
cur->extras = (xsltRuntimeExtraPtr)
xmlMalloc(cur->extrasMax * sizeof(xsltRuntimeExtra));
if (cur->extras == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xsltNewTransformContext: out of memory\n");
goto internal_err;
}
cur->extrasNr = style->extrasNr;
for (i = 0;i < cur->extrasMax;i++) {
cur->extras[i].info = NULL;
cur->extras[i].deallocate = NULL;
cur->extras[i].val.ptr = NULL;
}
} else {
cur->extras = NULL;
cur->extrasNr = 0;
cur->extrasMax = 0;
}
XSLT_REGISTER_VARIABLE_LOOKUP(cur);
XSLT_REGISTER_FUNCTION_LOOKUP(cur);
cur->xpathCtxt->nsHash = style->nsHash;
/*
* Initialize the registered external modules
*/
xsltInitCtxtExts(cur);
/*
* Setup document element ordering for later efficiencies
* (bug 133289)
*/
if (xslDebugStatus == XSLT_DEBUG_NONE)
xmlXPathOrderDocElems(doc);
/*
* Must set parserOptions before calling xsltNewDocument
* (bug 164530)
*/
cur->parserOptions = XSLT_PARSE_OPTIONS;
docu = xsltNewDocument(cur, doc);
if (docu == NULL) {
xsltTransformError(cur, NULL, (xmlNodePtr)doc,
"xsltNewTransformContext : xsltNewDocument failed\n");
goto internal_err;
}
docu->main = 1;
cur->document = docu;
cur->inst = NULL;
cur->outputFile = NULL;
cur->sec = xsltGetDefaultSecurityPrefs();
cur->debugStatus = xslDebugStatus;
cur->traceCode = (unsigned long*) &xsltDefaultTrace;
cur->xinclude = xsltGetXIncludeDefault();
cur->keyInitLevel = 0;
return(cur);
internal_err:
if (cur != NULL)
xsltFreeTransformContext(cur);
return(NULL);
}
/**
* xsltFreeTransformContext:
* @ctxt: an XSLT parser context
*
* Free up the memory allocated by @ctxt
*/
void
xsltFreeTransformContext(xsltTransformContextPtr ctxt) {
if (ctxt == NULL)
return;
/*
* Shutdown the extension modules associated to the stylesheet
* used if needed.
*/
xsltShutdownCtxtExts(ctxt);
if (ctxt->xpathCtxt != NULL) {
ctxt->xpathCtxt->nsHash = NULL;
xmlXPathFreeContext(ctxt->xpathCtxt);
}
if (ctxt->templTab != NULL)
xmlFree(ctxt->templTab);
if (ctxt->varsTab != NULL)
xmlFree(ctxt->varsTab);
if (ctxt->profTab != NULL)
xmlFree(ctxt->profTab);
if ((ctxt->extrasNr > 0) && (ctxt->extras != NULL)) {
int i;
for (i = 0;i < ctxt->extrasNr;i++) {
if ((ctxt->extras[i].deallocate != NULL) &&
(ctxt->extras[i].info != NULL))
ctxt->extras[i].deallocate(ctxt->extras[i].info);
}
xmlFree(ctxt->extras);
}
xsltFreeGlobalVariables(ctxt);
xsltFreeDocuments(ctxt);
xsltFreeCtxtExts(ctxt);
xsltFreeRVTs(ctxt);
xsltTransformCacheFree(ctxt->cache);
xmlDictFree(ctxt->dict);
#ifdef WITH_XSLT_DEBUG
xsltGenericDebug(xsltGenericDebugContext,
"freeing transformation dictionary\n");
#endif
memset(ctxt, -1, sizeof(xsltTransformContext));
xmlFree(ctxt);
}
/************************************************************************
* *
* Copy of Nodes in an XSLT fashion *
* *
************************************************************************/
xmlNodePtr xsltCopyTree(xsltTransformContextPtr ctxt,
xmlNodePtr node, xmlNodePtr insert, int literal);
/**
* xsltAddChild:
* @parent: the parent node
* @cur: the child node
*
* Wrapper version of xmlAddChild with a more consistent behaviour on
* error. One expect the use to be child = xsltAddChild(parent, child);
* and the routine will take care of not leaking on errors or node merge
*
* Returns the child is successfully attached or NULL if merged or freed
*/
static xmlNodePtr
xsltAddChild(xmlNodePtr parent, xmlNodePtr cur) {
xmlNodePtr ret;
if ((cur == NULL) || (parent == NULL))
return(NULL);
if (parent == NULL) {
xmlFreeNode(cur);
return(NULL);
}
ret = xmlAddChild(parent, cur);
return(ret);
}
/**
* xsltAddTextString:
* @ctxt: a XSLT process context
* @target: the text node where the text will be attached
* @string: the text string
* @len: the string length in byte
*
* Extend the current text node with the new string, it handles coalescing
*
* Returns: the text node
*/
static xmlNodePtr
xsltAddTextString(xsltTransformContextPtr ctxt, xmlNodePtr target,
const xmlChar *string, int len) {
/*
* optimization
*/
if ((len <= 0) || (string == NULL) || (target == NULL))
return(target);
if (ctxt->lasttext == target->content) {
if (ctxt->lasttuse + len >= ctxt->lasttsize) {
xmlChar *newbuf;
int size;
size = ctxt->lasttsize + len + 100;
size *= 2;
newbuf = (xmlChar *) xmlRealloc(target->content,size);
if (newbuf == NULL) {
xsltTransformError(ctxt, NULL, target,
"xsltCopyText: text allocation failed\n");
return(NULL);
}
ctxt->lasttsize = size;
ctxt->lasttext = newbuf;
target->content = newbuf;
}
memcpy(&(target->content[ctxt->lasttuse]), string, len);
ctxt->lasttuse += len;
target->content[ctxt->lasttuse] = 0;
} else {
xmlNodeAddContent(target, string);
ctxt->lasttext = target->content;
len = xmlStrlen(target->content);
ctxt->lasttsize = len;
ctxt->lasttuse = len;
}
return(target);
}
/**
* xsltCopyTextString:
* @ctxt: a XSLT process context
* @target: the element where the text will be attached
* @string: the text string
* @noescape: should disable-escaping be activated for this text node.
*
* Adds @string to a newly created or an existent text node child of
* @target.
*
* Returns: the text node, where the text content of @cur is copied to.
* NULL in case of API or internal errors.
*/
xmlNodePtr
xsltCopyTextString(xsltTransformContextPtr ctxt, xmlNodePtr target,
const xmlChar *string, int noescape)
{
xmlNodePtr copy;
int len;
if (string == NULL)
return(NULL);
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_COPY_TEXT,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopyTextString: copy text %s\n",
string));
#endif
/*
* Play safe and reset the merging mechanism for every new
* target node.
*/
if ((target == NULL) || (target->children == NULL)) {
ctxt->lasttext = NULL;
}
/* handle coalescing of text nodes here */
len = xmlStrlen(string);
if ((ctxt->type == XSLT_OUTPUT_XML) &&
(ctxt->style->cdataSection != NULL) &&
(target != NULL) &&
(target->type == XML_ELEMENT_NODE) &&
(((target->ns == NULL) &&
(xmlHashLookup2(ctxt->style->cdataSection,
target->name, NULL) != NULL)) ||
((target->ns != NULL) &&
(xmlHashLookup2(ctxt->style->cdataSection,
target->name, target->ns->href) != NULL))))
{
/*
* Process "cdata-section-elements".
*/
if ((target->last != NULL) &&
(target->last->type == XML_CDATA_SECTION_NODE))
{
return(xsltAddTextString(ctxt, target->last, string, len));
}
copy = xmlNewCDataBlock(ctxt->output, string, len);
} else if (noescape) {
/*
* Process "disable-output-escaping".
*/
if ((target != NULL) && (target->last != NULL) &&
(target->last->type == XML_TEXT_NODE) &&
(target->last->name == xmlStringTextNoenc))
{
return(xsltAddTextString(ctxt, target->last, string, len));
}
copy = xmlNewTextLen(string, len);
if (copy != NULL)
copy->name = xmlStringTextNoenc;
} else {
/*
* Default processing.
*/
if ((target != NULL) && (target->last != NULL) &&
(target->last->type == XML_TEXT_NODE) &&
(target->last->name == xmlStringText)) {
return(xsltAddTextString(ctxt, target->last, string, len));
}
copy = xmlNewTextLen(string, len);
}
if (copy != NULL) {
if (target != NULL)
copy = xsltAddChild(target, copy);
ctxt->lasttext = copy->content;
ctxt->lasttsize = len;
ctxt->lasttuse = len;
} else {
xsltTransformError(ctxt, NULL, target,
"xsltCopyTextString: text copy failed\n");
ctxt->lasttext = NULL;
}
return(copy);
}
/**
* xsltCopyText:
* @ctxt: a XSLT process context
* @target: the element where the text will be attached
* @cur: the text or CDATA node
* @interned: the string is in the target doc dictionary
*
* Copy the text content of @cur and append it to @target's children.
*
* Returns: the text node, where the text content of @cur is copied to.
* NULL in case of API or internal errors.
*/
static xmlNodePtr
xsltCopyText(xsltTransformContextPtr ctxt, xmlNodePtr target,
xmlNodePtr cur, int interned)
{
xmlNodePtr copy;
if ((cur->type != XML_TEXT_NODE) &&
(cur->type != XML_CDATA_SECTION_NODE))
return(NULL);
if (cur->content == NULL)
return(NULL);
#ifdef WITH_XSLT_DEBUG_PROCESS
if (cur->type == XML_CDATA_SECTION_NODE) {
XSLT_TRACE(ctxt,XSLT_TRACE_COPY_TEXT,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopyText: copy CDATA text %s\n",
cur->content));
} else if (cur->name == xmlStringTextNoenc) {
XSLT_TRACE(ctxt,XSLT_TRACE_COPY_TEXT,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopyText: copy unescaped text %s\n",
cur->content));
} else {
XSLT_TRACE(ctxt,XSLT_TRACE_COPY_TEXT,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopyText: copy text %s\n",
cur->content));
}
#endif
/*
* Play save and reset the merging mechanism for every new
* target node.
*/
if ((target == NULL) || (target->children == NULL)) {
ctxt->lasttext = NULL;
}
if ((ctxt->style->cdataSection != NULL) &&
(ctxt->type == XSLT_OUTPUT_XML) &&
(target != NULL) &&
(target->type == XML_ELEMENT_NODE) &&
(((target->ns == NULL) &&
(xmlHashLookup2(ctxt->style->cdataSection,
target->name, NULL) != NULL)) ||
((target->ns != NULL) &&
(xmlHashLookup2(ctxt->style->cdataSection,
target->name, target->ns->href) != NULL))))
{
/*
* Process "cdata-section-elements".
*/
/*
* OPTIMIZE TODO: xsltCopyText() is also used for attribute content.
*/
/*
* TODO: Since this doesn't merge adjacent CDATA-section nodes,
* we'll get: <![CDATA[x]]><!CDATA[y]]>.
* TODO: Reported in #321505.
*/
if ((target->last != NULL) &&
(target->last->type == XML_CDATA_SECTION_NODE))
{
/*
* Append to existing CDATA-section node.
*/
copy = xsltAddTextString(ctxt, target->last, cur->content,
xmlStrlen(cur->content));
goto exit;
} else {
unsigned int len;
len = xmlStrlen(cur->content);
copy = xmlNewCDataBlock(ctxt->output, cur->content, len);
if (copy == NULL)
goto exit;
ctxt->lasttext = copy->content;
ctxt->lasttsize = len;
ctxt->lasttuse = len;
}
} else if ((target != NULL) &&
(target->last != NULL) &&
/* both escaped or both non-escaped text-nodes */
(((target->last->type == XML_TEXT_NODE) &&
(target->last->name == cur->name)) ||
/* non-escaped text nodes and CDATA-section nodes */
(((target->last->type == XML_CDATA_SECTION_NODE) &&
(cur->name == xmlStringTextNoenc)))))
{
/*
* we are appending to an existing text node
*/
copy = xsltAddTextString(ctxt, target->last, cur->content,
xmlStrlen(cur->content));
goto exit;
} else if ((interned) && (target != NULL) &&
(target->doc != NULL) &&
(target->doc->dict == ctxt->dict))
{
/*
* TODO: DO we want to use this also for "text" output?
*/
copy = xmlNewTextLen(NULL, 0);
if (copy == NULL)
goto exit;
if (cur->name == xmlStringTextNoenc)
copy->name = xmlStringTextNoenc;
/*
* Must confirm that content is in dict (bug 302821)
* TODO: This check should be not needed for text coming
* from the stylesheets
*/
if (xmlDictOwns(ctxt->dict, cur->content))
copy->content = cur->content;
else {
if ((copy->content = xmlStrdup(cur->content)) == NULL)
return NULL;
}
} else {
/*
* normal processing. keep counters to extend the text node
* in xsltAddTextString if needed.
*/
unsigned int len;
len = xmlStrlen(cur->content);
copy = xmlNewTextLen(cur->content, len);
if (copy == NULL)
goto exit;
if (cur->name == xmlStringTextNoenc)
copy->name = xmlStringTextNoenc;
ctxt->lasttext = copy->content;
ctxt->lasttsize = len;
ctxt->lasttuse = len;
}
if (copy != NULL) {
if (target != NULL) {
copy->doc = target->doc;
/*
* MAYBE TODO: Maybe we should reset the ctxt->lasttext here
* to ensure that the optimized text-merging mechanism
* won't interfere with normal node-merging in any case.
*/
copy = xsltAddChild(target, copy);
}
} else {
xsltTransformError(ctxt, NULL, target,
"xsltCopyText: text copy failed\n");
}
exit:
if ((copy == NULL) || (copy->content == NULL)) {
xsltTransformError(ctxt, NULL, target,
"Internal error in xsltCopyText(): "
"Failed to copy the string.\n");
ctxt->state = XSLT_STATE_STOPPED;
}
return(copy);
}
/**
* xsltShallowCopyAttr:
* @ctxt: a XSLT process context
* @invocNode: responsible node in the stylesheet; used for error reports
* @target: the element where the attribute will be grafted
* @attr: the attribute to be copied
*
* Do a copy of an attribute.
* Called by:
* - xsltCopyTreeInternal()
* - xsltCopyOf()
* - xsltCopy()
*
* Returns: a new xmlAttrPtr, or NULL in case of error.
*/
static xmlAttrPtr
xsltShallowCopyAttr(xsltTransformContextPtr ctxt, xmlNodePtr invocNode,
xmlNodePtr target, xmlAttrPtr attr)
{
xmlAttrPtr copy;
xmlChar *value;
if (attr == NULL)
return(NULL);
if (target->type != XML_ELEMENT_NODE) {
xsltTransformError(ctxt, NULL, invocNode,
"Cannot add an attribute node to a non-element node.\n");
return(NULL);
}
if (target->children != NULL) {
xsltTransformError(ctxt, NULL, invocNode,
"Attribute nodes must be added before "
"any child nodes to an element.\n");
return(NULL);
}
value = xmlNodeListGetString(attr->doc, attr->children, 1);
if (attr->ns != NULL) {
xmlNsPtr ns;
ns = xsltGetSpecialNamespace(ctxt, invocNode,
attr->ns->href, attr->ns->prefix, target);
if (ns == NULL) {
xsltTransformError(ctxt, NULL, invocNode,
"Namespace fixup error: Failed to acquire an in-scope "
"namespace binding of the copied attribute '{%s}%s'.\n",
attr->ns->href, attr->name);
/*
* TODO: Should we just stop here?
*/
}
/*
* Note that xmlSetNsProp() will take care of duplicates
* and assigns the new namespace even to a duplicate.
*/
copy = xmlSetNsProp(target, ns, attr->name, value);
} else {
copy = xmlSetNsProp(target, NULL, attr->name, value);
}
if (value != NULL)
xmlFree(value);
if (copy == NULL)
return(NULL);
#if 0
/*
* NOTE: This was optimized according to bug #342695.
* TODO: Can this further be optimized, if source and target
* share the same dict and attr->children is just 1 text node
* which is in the dict? How probable is such a case?
*/
/*
* TODO: Do we need to create an empty text node if the value
* is the empty string?
*/
value = xmlNodeListGetString(attr->doc, attr->children, 1);
if (value != NULL) {
txtNode = xmlNewDocText(target->doc, NULL);
if (txtNode == NULL)
return(NULL);
if ((target->doc != NULL) &&
(target->doc->dict != NULL))
{
txtNode->content =
(xmlChar *) xmlDictLookup(target->doc->dict,
BAD_CAST value, -1);
xmlFree(value);
} else
txtNode->content = value;
copy->children = txtNode;
}
#endif
return(copy);
}
/**
* xsltCopyAttrListNoOverwrite:
* @ctxt: a XSLT process context
* @invocNode: responsible node in the stylesheet; used for error reports
* @target: the element where the new attributes will be grafted
* @attr: the first attribute in the list to be copied
*
* Copies a list of attribute nodes, starting with @attr, over to the
* @target element node.
*
* Called by:
* - xsltCopyTreeInternal()
*
* Returns 0 on success and -1 on errors and internal errors.
*/
static int
xsltCopyAttrListNoOverwrite(xsltTransformContextPtr ctxt,
xmlNodePtr invocNode,
xmlNodePtr target, xmlAttrPtr attr)
{
xmlAttrPtr copy;
xmlNsPtr origNs = NULL, copyNs = NULL;
xmlChar *value;
/*
* Don't use xmlCopyProp() here, since it will try to
* reconciliate namespaces.
*/
while (attr != NULL) {
/*
* Find a namespace node in the tree of @target.
* Avoid searching for the same ns.
*/
if (attr->ns != origNs) {
origNs = attr->ns;
if (attr->ns != NULL) {
copyNs = xsltGetSpecialNamespace(ctxt, invocNode,
attr->ns->href, attr->ns->prefix, target);
if (copyNs == NULL)
return(-1);
} else
copyNs = NULL;
}
/*
* If attribute has a value, we need to copy it (watching out
* for possible entities)
*/
if ((attr->children) && (attr->children->type == XML_TEXT_NODE) &&
(attr->children->next == NULL)) {
copy = xmlNewNsProp(target, copyNs, attr->name,
attr->children->content);
} else if (attr->children != NULL) {
value = xmlNodeListGetString(attr->doc, attr->children, 1);
copy = xmlNewNsProp(target, copyNs, attr->name, BAD_CAST value);
xmlFree(value);
} else {
copy = xmlNewNsProp(target, copyNs, attr->name, NULL);
}
if (copy == NULL)
return(-1);
attr = attr->next;
}
return(0);
}
/**
* xsltShallowCopyElem:
* @ctxt: the XSLT process context
* @node: the element node in the source tree
* or the Literal Result Element
* @insert: the parent in the result tree
* @isLRE: if @node is a Literal Result Element
*
* Make a copy of the element node @node
* and insert it as last child of @insert.
*
* URGENT TODO: The problem with this one (for the non-refactored code)
* is that it is used for both, Literal Result Elements *and*
* copying input nodes.
*
* BIG NOTE: This is only called for XML_ELEMENT_NODEs.
*
* Called from:
* xsltApplySequenceConstructor()
* (for Literal Result Elements - which is a problem)
* xsltCopy() (for shallow-copying elements via xsl:copy)
*
* Returns a pointer to the new node, or NULL in case of error
*/
static xmlNodePtr
xsltShallowCopyElem(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr insert, int isLRE)
{
xmlNodePtr copy;
if ((node->type == XML_DTD_NODE) || (insert == NULL))
return(NULL);
if ((node->type == XML_TEXT_NODE) ||
(node->type == XML_CDATA_SECTION_NODE))
return(xsltCopyText(ctxt, insert, node, 0));
copy = xmlDocCopyNode(node, insert->doc, 0);
if (copy != NULL) {
copy->doc = ctxt->output;
copy = xsltAddChild(insert, copy);
if (node->type == XML_ELEMENT_NODE) {
/*
* Add namespaces as they are needed
*/
if (node->nsDef != NULL) {
/*
* TODO: Remove the LRE case in the refactored code
* gets enabled.
*/
if (isLRE)
xsltCopyNamespaceList(ctxt, copy, node->nsDef);
else
xsltCopyNamespaceListInternal(copy, node->nsDef);
}
/*
* URGENT TODO: The problem with this is that it does not
* copy over all namespace nodes in scope.
* The damn thing about this is, that we would need to
* use the xmlGetNsList(), for every single node; this is
* also done in xsltCopyTreeInternal(), but only for the top node.
*/
if (node->ns != NULL) {
if (isLRE) {
/*
* REVISIT TODO: Since the non-refactored code still does
* ns-aliasing, we need to call xsltGetNamespace() here.
* Remove this when ready.
*/
copy->ns = xsltGetNamespace(ctxt, node, node->ns, copy);
} else {
copy->ns = xsltGetSpecialNamespace(ctxt,
node, node->ns->href, node->ns->prefix, copy);
}
} else if ((insert->type == XML_ELEMENT_NODE) &&
(insert->ns != NULL))
{
/*
* "Undeclare" the default namespace.
*/
xsltGetSpecialNamespace(ctxt, node, NULL, NULL, copy);
}
}
} else {
xsltTransformError(ctxt, NULL, node,
"xsltShallowCopyElem: copy %s failed\n", node->name);
}
return(copy);
}
/**
* xsltCopyTreeList:
* @ctxt: a XSLT process context
* @invocNode: responsible node in the stylesheet; used for error reports
* @list: the list of element nodes in the source tree.
* @insert: the parent in the result tree.
* @isLRE: is this a literal result element list
* @topElemVisited: indicates if a top-most element was already processed
*
* Make a copy of the full list of tree @list
* and insert it as last children of @insert
*
* NOTE: Not to be used for Literal Result Elements.
*
* Used by:
* - xsltCopyOf()
*
* Returns a pointer to the new list, or NULL in case of error
*/
static xmlNodePtr
xsltCopyTreeList(xsltTransformContextPtr ctxt, xmlNodePtr invocNode,
xmlNodePtr list,
xmlNodePtr insert, int isLRE, int topElemVisited)
{
xmlNodePtr copy, ret = NULL;
while (list != NULL) {
copy = xsltCopyTreeInternal(ctxt, invocNode,
list, insert, isLRE, topElemVisited);
if (copy != NULL) {
if (ret == NULL) {
ret = copy;
}
}
list = list->next;
}
return(ret);
}
/**
* xsltCopyNamespaceListInternal:
* @node: the target node
* @cur: the first namespace
*
* Do a copy of a namespace list. If @node is non-NULL the
* new namespaces are added automatically.
* Called by:
* xsltCopyTreeInternal()
*
* QUESTION: What is the exact difference between this function
* and xsltCopyNamespaceList() in "namespaces.c"?
* ANSWER: xsltCopyNamespaceList() tries to apply ns-aliases.
*
* Returns: a new xmlNsPtr, or NULL in case of error.
*/
static xmlNsPtr
xsltCopyNamespaceListInternal(xmlNodePtr elem, xmlNsPtr ns) {
xmlNsPtr ret = NULL;
xmlNsPtr p = NULL, q, luNs;
if (ns == NULL)
return(NULL);
/*
* One can add namespaces only on element nodes
*/
if ((elem != NULL) && (elem->type != XML_ELEMENT_NODE))
elem = NULL;
do {
if (ns->type != XML_NAMESPACE_DECL)
break;
/*
* Avoid duplicating namespace declarations on the tree.
*/
if (elem != NULL) {
if ((elem->ns != NULL) &&
xmlStrEqual(elem->ns->prefix, ns->prefix) &&
xmlStrEqual(elem->ns->href, ns->href))
{
ns = ns->next;
continue;
}
luNs = xmlSearchNs(elem->doc, elem, ns->prefix);
if ((luNs != NULL) && (xmlStrEqual(luNs->href, ns->href)))
{
ns = ns->next;
continue;
}
}
q = xmlNewNs(elem, ns->href, ns->prefix);
if (p == NULL) {
ret = p = q;
} else if (q != NULL) {
p->next = q;
p = q;
}
ns = ns->next;
} while (ns != NULL);
return(ret);
}
/**
* xsltShallowCopyNsNode:
* @ctxt: the XSLT transformation context
* @invocNode: responsible node in the stylesheet; used for error reports
* @insert: the target element node in the result tree
* @ns: the namespace node
*
* This is used for copying ns-nodes with xsl:copy-of and xsl:copy.
*
* Returns a new/existing ns-node, or NULL.
*/
static xmlNsPtr
xsltShallowCopyNsNode(xsltTransformContextPtr ctxt,
xmlNodePtr invocNode,
xmlNodePtr insert,
xmlNsPtr ns)
{
/*
* TODO: Contrary to header comments, this is declared as int.
* be modified to return a node pointer, or NULL if any error
*/
xmlNsPtr tmpns;
if ((insert == NULL) || (insert->type != XML_ELEMENT_NODE))
return(NULL);
if (insert->children != NULL) {
xsltTransformError(ctxt, NULL, invocNode,
"Namespace nodes must be added before "
"any child nodes are added to an element.\n");
return(NULL);
}
/*
* BIG NOTE: Xalan-J simply overwrites any ns-decls with
* an equal prefix. We definitively won't do that.
*
* MSXML 4.0 and the .NET ignores ns-decls for which an
* equal prefix is already in use.
*
* Saxon raises an error like:
* "net.sf.saxon.xpath.DynamicError: Cannot create two namespace
* nodes with the same name".
*
* NOTE: We'll currently follow MSXML here.
* REVISIT TODO: Check if it's better to follow Saxon here.
*/
if (ns->prefix == NULL) {
/*
* If we are adding ns-nodes to an element using e.g.
* <xsl:copy-of select="/foo/namespace::*">, then we need
* to ensure that we don't incorrectly declare a default
* namespace on an element in no namespace, which otherwise
* would move the element incorrectly into a namespace, if
* the node tree is serialized.
*/
if (insert->ns == NULL)
goto occupied;
} else if ((ns->prefix[0] == 'x') &&
xmlStrEqual(ns->prefix, BAD_CAST "xml"))
{
/*
* The XML namespace is built in.
*/
return(NULL);
}
if (insert->nsDef != NULL) {
tmpns = insert->nsDef;
do {
if ((tmpns->prefix == NULL) == (ns->prefix == NULL)) {
if ((tmpns->prefix == ns->prefix) ||
xmlStrEqual(tmpns->prefix, ns->prefix))
{
/*
* Same prefix.
*/
if (xmlStrEqual(tmpns->href, ns->href))
return(NULL);
goto occupied;
}
}
tmpns = tmpns->next;
} while (tmpns != NULL);
}
tmpns = xmlSearchNs(insert->doc, insert, ns->prefix);
if ((tmpns != NULL) && xmlStrEqual(tmpns->href, ns->href))
return(NULL);
/*
* Declare a new namespace.
* TODO: The problem (wrt efficiency) with this xmlNewNs() is
* that it will again search the already declared namespaces
* for a duplicate :-/
*/
return(xmlNewNs(insert, ns->href, ns->prefix));
occupied:
/*
* TODO: We could as well raise an error here (like Saxon does),
* or at least generate a warning.
*/
return(NULL);
}
/**
* xsltCopyTreeInternal:
* @ctxt: the XSLT transformation context
* @invocNode: responsible node in the stylesheet; used for error reports
* @node: the element node in the source tree
* @insert: the parent in the result tree
* @isLRE: indicates if @node is a Literal Result Element
* @topElemVisited: indicates if a top-most element was already processed
*
* Make a copy of the full tree under the element node @node
* and insert it as last child of @insert
*
* NOTE: Not to be used for Literal Result Elements.
*
* Used by:
* - xsltCopyOf()
*
* Returns a pointer to the new tree, or NULL in case of error
*/
static xmlNodePtr
xsltCopyTreeInternal(xsltTransformContextPtr ctxt,
xmlNodePtr invocNode,
xmlNodePtr node,
xmlNodePtr insert, int isLRE, int topElemVisited)
{
xmlNodePtr copy;
if (node == NULL)
return(NULL);
switch (node->type) {
case XML_ELEMENT_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_PI_NODE:
case XML_COMMENT_NODE:
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
break;
case XML_TEXT_NODE: {
int noenc = (node->name == xmlStringTextNoenc);
return(xsltCopyTextString(ctxt, insert, node->content, noenc));
}
case XML_CDATA_SECTION_NODE:
return(xsltCopyTextString(ctxt, insert, node->content, 0));
case XML_ATTRIBUTE_NODE:
return((xmlNodePtr)
xsltShallowCopyAttr(ctxt, invocNode, insert, (xmlAttrPtr) node));
case XML_NAMESPACE_DECL:
return((xmlNodePtr) xsltShallowCopyNsNode(ctxt, invocNode,
insert, (xmlNsPtr) node));
case XML_DOCUMENT_TYPE_NODE:
case XML_DOCUMENT_FRAG_NODE:
case XML_NOTATION_NODE:
case XML_DTD_NODE:
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_DECL:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
return(NULL);
}
if (XSLT_IS_RES_TREE_FRAG(node)) {
if (node->children != NULL)
copy = xsltCopyTreeList(ctxt, invocNode,
node->children, insert, 0, 0);
else
copy = NULL;
return(copy);
}
copy = xmlDocCopyNode(node, insert->doc, 0);
if (copy != NULL) {
copy->doc = ctxt->output;
copy = xsltAddChild(insert, copy);
/*
* The node may have been coalesced into another text node.
*/
if (insert->last != copy)
return(insert->last);
copy->next = NULL;
if (node->type == XML_ELEMENT_NODE) {
/*
* Copy in-scope namespace nodes.
*
* REVISIT: Since we try to reuse existing in-scope ns-decls by
* using xmlSearchNsByHref(), this will eventually change
* the prefix of an original ns-binding; thus it might
* break QNames in element/attribute content.
* OPTIMIZE TODO: If we had a xmlNsPtr * on the transformation
* context, plus a ns-lookup function, which writes directly
* to a given list, then we wouldn't need to create/free the
* nsList every time.
*/
if ((topElemVisited == 0) &&
(node->parent != NULL) &&
(node->parent->type != XML_DOCUMENT_NODE) &&
(node->parent->type != XML_HTML_DOCUMENT_NODE))
{
xmlNsPtr *nsList, *curns, ns;
/*
* If this is a top-most element in a tree to be
* copied, then we need to ensure that all in-scope
* namespaces are copied over. For nodes deeper in the
* tree, it is sufficient to reconcile only the ns-decls
* (node->nsDef entries).
*/
nsList = xmlGetNsList(node->doc, node);
if (nsList != NULL) {
curns = nsList;
do {
/*
* Search by prefix first in order to break as less
* QNames in element/attribute content as possible.
*/
ns = xmlSearchNs(insert->doc, insert,
(*curns)->prefix);
if ((ns == NULL) ||
(! xmlStrEqual(ns->href, (*curns)->href)))
{
ns = NULL;
/*
* Search by namespace name.
* REVISIT TODO: Currently disabled.
*/
#if 0
ns = xmlSearchNsByHref(insert->doc,
insert, (*curns)->href);
#endif
}
if (ns == NULL) {
/*
* Declare a new namespace on the copied element.
*/
ns = xmlNewNs(copy, (*curns)->href,
(*curns)->prefix);
/* TODO: Handle errors */
}
if (node->ns == *curns) {
/*
* If this was the original's namespace then set
* the generated counterpart on the copy.
*/
copy->ns = ns;
}
curns++;
} while (*curns != NULL);
xmlFree(nsList);
}
} else if (node->nsDef != NULL) {
/*
* Copy over all namespace declaration attributes.
*/
if (node->nsDef != NULL) {
if (isLRE)
xsltCopyNamespaceList(ctxt, copy, node->nsDef);
else
xsltCopyNamespaceListInternal(copy, node->nsDef);
}
}
/*
* Set the namespace.
*/
if (node->ns != NULL) {
if (copy->ns == NULL) {
/*
* This will map copy->ns to one of the newly created
* in-scope ns-decls, OR create a new ns-decl on @copy.
*/
copy->ns = xsltGetSpecialNamespace(ctxt, invocNode,
node->ns->href, node->ns->prefix, copy);
}
} else if ((insert->type == XML_ELEMENT_NODE) &&
(insert->ns != NULL))
{
/*
* "Undeclare" the default namespace on @copy with xmlns="".
*/
xsltGetSpecialNamespace(ctxt, invocNode, NULL, NULL, copy);
}
/*
* Copy attribute nodes.
*/
if (node->properties != NULL) {
xsltCopyAttrListNoOverwrite(ctxt, invocNode,
copy, node->properties);
}
if (topElemVisited == 0)
topElemVisited = 1;
}
/*
* Copy the subtree.
*/
if (node->children != NULL) {
xsltCopyTreeList(ctxt, invocNode,
node->children, copy, isLRE, topElemVisited);
}
} else {
xsltTransformError(ctxt, NULL, invocNode,
"xsltCopyTreeInternal: Copying of '%s' failed.\n", node->name);
}
return(copy);
}
/**
* xsltCopyTree:
* @ctxt: the XSLT transformation context
* @node: the element node in the source tree
* @insert: the parent in the result tree
* @literal: indicates if @node is a Literal Result Element
*
* Make a copy of the full tree under the element node @node
* and insert it as last child of @insert
* For literal result element, some of the namespaces may not be copied
* over according to section 7.1.
* TODO: Why is this a public function?
*
* Returns a pointer to the new tree, or NULL in case of error
*/
xmlNodePtr
xsltCopyTree(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr insert, int literal)
{
return(xsltCopyTreeInternal(ctxt, node, node, insert, literal, 0));
}
/************************************************************************
* *
* Error/fallback processing *
* *
************************************************************************/
/**
* xsltApplyFallbacks:
* @ctxt: a XSLT process context
* @node: the node in the source tree.
* @inst: the node generating the error
*
* Process possible xsl:fallback nodes present under @inst
*
* Returns the number of xsl:fallback element found and processed
*/
static int
xsltApplyFallbacks(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst) {
xmlNodePtr child;
int ret = 0;
if ((ctxt == NULL) || (node == NULL) || (inst == NULL) ||
(inst->children == NULL))
return(0);
child = inst->children;
while (child != NULL) {
if ((IS_XSLT_ELEM(child)) &&
(xmlStrEqual(child->name, BAD_CAST "fallback"))) {
#ifdef WITH_XSLT_DEBUG_PARSING
xsltGenericDebug(xsltGenericDebugContext,
"applying xsl:fallback\n");
#endif
ret++;
xsltApplySequenceConstructor(ctxt, node, child->children,
NULL);
}
child = child->next;
}
return(ret);
}
/************************************************************************
* *
* Default processing *
* *
************************************************************************/
/**
* xsltDefaultProcessOneNode:
* @ctxt: a XSLT process context
* @node: the node in the source tree.
* @params: extra parameters passed to the template if any
*
* Process the source node with the default built-in template rule:
* <xsl:template match="*|/">
* <xsl:apply-templates/>
* </xsl:template>
*
* and
*
* <xsl:template match="text()|@*">
* <xsl:value-of select="."/>
* </xsl:template>
*
* Note also that namespace declarations are copied directly:
*
* the built-in template rule is the only template rule that is applied
* for namespace nodes.
*/
static void
xsltDefaultProcessOneNode(xsltTransformContextPtr ctxt, xmlNodePtr node,
xsltStackElemPtr params) {
xmlNodePtr copy;
xmlNodePtr delete = NULL, cur;
int nbchild = 0, oldSize;
int childno = 0, oldPos;
xsltTemplatePtr template;
CHECK_STOPPED;
/*
* Handling of leaves
*/
switch (node->type) {
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_ELEMENT_NODE:
break;
case XML_CDATA_SECTION_NODE:
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: copy CDATA %s\n",
node->content));
#endif
copy = xsltCopyText(ctxt, ctxt->insert, node, 0);
if (copy == NULL) {
xsltTransformError(ctxt, NULL, node,
"xsltDefaultProcessOneNode: cdata copy failed\n");
}
return;
case XML_TEXT_NODE:
#ifdef WITH_XSLT_DEBUG_PROCESS
if (node->content == NULL) {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: copy empty text\n"));
return;
} else {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: copy text %s\n",
node->content));
}
#endif
copy = xsltCopyText(ctxt, ctxt->insert, node, 0);
if (copy == NULL) {
xsltTransformError(ctxt, NULL, node,
"xsltDefaultProcessOneNode: text copy failed\n");
}
return;
case XML_ATTRIBUTE_NODE:
cur = node->children;
while ((cur != NULL) && (cur->type != XML_TEXT_NODE))
cur = cur->next;
if (cur == NULL) {
xsltTransformError(ctxt, NULL, node,
"xsltDefaultProcessOneNode: no text for attribute\n");
} else {
#ifdef WITH_XSLT_DEBUG_PROCESS
if (cur->content == NULL) {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: copy empty text\n"));
} else {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: copy text %s\n",
cur->content));
}
#endif
copy = xsltCopyText(ctxt, ctxt->insert, cur, 0);
if (copy == NULL) {
xsltTransformError(ctxt, NULL, node,
"xsltDefaultProcessOneNode: text copy failed\n");
}
}
return;
default:
return;
}
/*
* Handling of Elements: first pass, cleanup and counting
*/
cur = node->children;
while (cur != NULL) {
switch (cur->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_ELEMENT_NODE:
case XML_PI_NODE:
case XML_COMMENT_NODE:
nbchild++;
break;
case XML_DTD_NODE:
/* Unlink the DTD, it's still reachable using doc->intSubset */
if (cur->next != NULL)
cur->next->prev = cur->prev;
if (cur->prev != NULL)
cur->prev->next = cur->next;
break;
default:
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: skipping node type %d\n",
cur->type));
#endif
delete = cur;
}
cur = cur->next;
if (delete != NULL) {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: removing ignorable blank node\n"));
#endif
xmlUnlinkNode(delete);
xmlFreeNode(delete);
delete = NULL;
}
}
if (delete != NULL) {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: removing ignorable blank node\n"));
#endif
xmlUnlinkNode(delete);
xmlFreeNode(delete);
delete = NULL;
}
/*
* Handling of Elements: second pass, actual processing
*/
oldSize = ctxt->xpathCtxt->contextSize;
oldPos = ctxt->xpathCtxt->proximityPosition;
cur = node->children;
while (cur != NULL) {
childno++;
switch (cur->type) {
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_ELEMENT_NODE:
ctxt->xpathCtxt->contextSize = nbchild;
ctxt->xpathCtxt->proximityPosition = childno;
xsltProcessOneNode(ctxt, cur, params);
break;
case XML_CDATA_SECTION_NODE:
template = xsltGetTemplate(ctxt, cur, NULL);
if (template) {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: applying template for CDATA %s\n",
cur->content));
#endif
/*
* Instantiate the xsl:template.
*/
xsltApplyXSLTTemplate(ctxt, cur, template->content,
template, params);
} else /* if (ctxt->mode == NULL) */ {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: copy CDATA %s\n",
cur->content));
#endif
copy = xsltCopyText(ctxt, ctxt->insert, cur, 0);
if (copy == NULL) {
xsltTransformError(ctxt, NULL, cur,
"xsltDefaultProcessOneNode: cdata copy failed\n");
}
}
break;
case XML_TEXT_NODE:
template = xsltGetTemplate(ctxt, cur, NULL);
if (template) {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: applying template for text %s\n",
cur->content));
#endif
ctxt->xpathCtxt->contextSize = nbchild;
ctxt->xpathCtxt->proximityPosition = childno;
/*
* Instantiate the xsl:template.
*/
xsltApplyXSLTTemplate(ctxt, cur, template->content,
template, params);
} else /* if (ctxt->mode == NULL) */ {
#ifdef WITH_XSLT_DEBUG_PROCESS
if (cur->content == NULL) {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: copy empty text\n"));
} else {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: copy text %s\n",
cur->content));
}
#endif
copy = xsltCopyText(ctxt, ctxt->insert, cur, 0);
if (copy == NULL) {
xsltTransformError(ctxt, NULL, cur,
"xsltDefaultProcessOneNode: text copy failed\n");
}
}
break;
case XML_PI_NODE:
case XML_COMMENT_NODE:
template = xsltGetTemplate(ctxt, cur, NULL);
if (template) {
#ifdef WITH_XSLT_DEBUG_PROCESS
if (cur->type == XML_PI_NODE) {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: template found for PI %s\n",
cur->name));
} else if (cur->type == XML_COMMENT_NODE) {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltDefaultProcessOneNode: template found for comment\n"));
}
#endif
ctxt->xpathCtxt->contextSize = nbchild;
ctxt->xpathCtxt->proximityPosition = childno;
/*
* Instantiate the xsl:template.
*/
xsltApplyXSLTTemplate(ctxt, cur, template->content,
template, params);
}
break;
default:
break;
}
cur = cur->next;
}
ctxt->xpathCtxt->contextSize = oldSize;
ctxt->xpathCtxt->proximityPosition = oldPos;
}
/**
* xsltProcessOneNode:
* @ctxt: a XSLT process context
* @contextNode: the "current node" in the source tree
* @withParams: extra parameters (e.g. xsl:with-param) passed to the
* template if any
*
* Process the source node.
*/
void
xsltProcessOneNode(xsltTransformContextPtr ctxt, xmlNodePtr contextNode,
xsltStackElemPtr withParams)
{
xsltTemplatePtr templ;
xmlNodePtr oldNode;
templ = xsltGetTemplate(ctxt, contextNode, NULL);
/*
* If no template is found, apply the default rule.
*/
if (templ == NULL) {
#ifdef WITH_XSLT_DEBUG_PROCESS
if (contextNode->type == XML_DOCUMENT_NODE) {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltProcessOneNode: no template found for /\n"));
} else if (contextNode->type == XML_CDATA_SECTION_NODE) {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltProcessOneNode: no template found for CDATA\n"));
} else if (contextNode->type == XML_ATTRIBUTE_NODE) {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltProcessOneNode: no template found for attribute %s\n",
((xmlAttrPtr) contextNode)->name));
} else {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltProcessOneNode: no template found for %s\n", contextNode->name));
}
#endif
oldNode = ctxt->node;
ctxt->node = contextNode;
xsltDefaultProcessOneNode(ctxt, contextNode, withParams);
ctxt->node = oldNode;
return;
}
if (contextNode->type == XML_ATTRIBUTE_NODE) {
xsltTemplatePtr oldCurTempRule = ctxt->currentTemplateRule;
/*
* Set the "current template rule".
*/
ctxt->currentTemplateRule = templ;
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltProcessOneNode: applying template '%s' for attribute %s\n",
templ->match, contextNode->name));
#endif
xsltApplyXSLTTemplate(ctxt, contextNode, templ->content, templ, withParams);
ctxt->currentTemplateRule = oldCurTempRule;
} else {
xsltTemplatePtr oldCurTempRule = ctxt->currentTemplateRule;
/*
* Set the "current template rule".
*/
ctxt->currentTemplateRule = templ;
#ifdef WITH_XSLT_DEBUG_PROCESS
if (contextNode->type == XML_DOCUMENT_NODE) {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltProcessOneNode: applying template '%s' for /\n",
templ->match));
} else {
XSLT_TRACE(ctxt,XSLT_TRACE_PROCESS_NODE,xsltGenericDebug(xsltGenericDebugContext,
"xsltProcessOneNode: applying template '%s' for %s\n",
templ->match, contextNode->name));
}
#endif
xsltApplyXSLTTemplate(ctxt, contextNode, templ->content, templ, withParams);
ctxt->currentTemplateRule = oldCurTempRule;
}
}
static xmlNodePtr
xsltDebuggerStartSequenceConstructor(xsltTransformContextPtr ctxt,
xmlNodePtr contextNode,
xmlNodePtr list,
xsltTemplatePtr templ,
int *addCallResult)
{
xmlNodePtr debugedNode = NULL;
if (ctxt->debugStatus != XSLT_DEBUG_NONE) {
if (templ) {
*addCallResult = xslAddCall(templ, templ->elem);
} else {
*addCallResult = xslAddCall(NULL, list);
}
switch (ctxt->debugStatus) {
case XSLT_DEBUG_RUN_RESTART:
case XSLT_DEBUG_QUIT:
if (*addCallResult)
xslDropCall();
return(NULL);
}
if (templ) {
xslHandleDebugger(templ->elem, contextNode, templ, ctxt);
debugedNode = templ->elem;
} else if (list) {
xslHandleDebugger(list, contextNode, templ, ctxt);
debugedNode = list;
} else if (ctxt->inst) {
xslHandleDebugger(ctxt->inst, contextNode, templ, ctxt);
debugedNode = ctxt->inst;
}
}
return(debugedNode);
}
/**
* xsltLocalVariablePush:
* @ctxt: the transformation context
* @variable: variable to be pushed to the variable stack
* @level: new value for variable's level
*
* Places the variable onto the local variable stack
*
* Returns: 0 for success, -1 for any error
* **NOTE:**
* This is an internal routine and should not be called by users!
*/
int
xsltLocalVariablePush(xsltTransformContextPtr ctxt,
xsltStackElemPtr variable,
int level)
{
if (ctxt->varsMax == 0) {
ctxt->varsMax = 10;
ctxt->varsTab =
(xsltStackElemPtr *) xmlMalloc(ctxt->varsMax *
sizeof(ctxt->varsTab[0]));
if (ctxt->varsTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "malloc failed !\n");
return (-1);
}
}
if (ctxt->varsNr >= ctxt->varsMax) {
ctxt->varsMax *= 2;
ctxt->varsTab =
(xsltStackElemPtr *) xmlRealloc(ctxt->varsTab,
ctxt->varsMax *
sizeof(ctxt->varsTab[0]));
if (ctxt->varsTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "realloc failed !\n");
return (-1);
}
}
ctxt->varsTab[ctxt->varsNr++] = variable;
ctxt->vars = variable;
variable->level = level;
return(0);
}
/**
* xsltReleaseLocalRVTs:
*
* Fragments which are results of extension instructions
* are preserved; all other fragments are freed/cached.
*/
static void
xsltReleaseLocalRVTs(xsltTransformContextPtr ctxt, xmlDocPtr base)
{
xmlDocPtr cur = ctxt->localRVT, tmp;
while ((cur != NULL) && (cur != base)) {
if (cur->psvi == (void *) ((long) 1)) {
cur = (xmlDocPtr) cur->next;
} else {
tmp = cur;
cur = (xmlDocPtr) cur->next;
if (tmp == ctxt->localRVT)
ctxt->localRVT = cur;
/*
* We need ctxt->localRVTBase for extension instructions
* which return values (like EXSLT's function).
*/
if (tmp == ctxt->localRVTBase)
ctxt->localRVTBase = cur;
if (tmp->prev)
tmp->prev->next = (xmlNodePtr) cur;
if (cur)
cur->prev = tmp->prev;
xsltReleaseRVT(ctxt, tmp);
}
}
}
/**
* xsltApplySequenceConstructor:
* @ctxt: a XSLT process context
* @contextNode: the "current node" in the source tree
* @list: the nodes of a sequence constructor;
* (plus leading xsl:param elements)
* @templ: the compiled xsl:template (optional)
*
* Processes a sequence constructor.
*
* NOTE: ctxt->currentTemplateRule was introduced to reflect the
* semantics of "current template rule". I.e. the field ctxt->templ
* is not intended to reflect this, thus always pushed onto the
* template stack.
*/
static void
xsltApplySequenceConstructor(xsltTransformContextPtr ctxt,
xmlNodePtr contextNode, xmlNodePtr list,
xsltTemplatePtr templ)
{
xmlNodePtr oldInsert, oldInst, oldCurInst, oldContextNode;
xmlNodePtr cur, insert, copy = NULL;
int level = 0, oldVarsNr;
xmlDocPtr oldLocalFragmentTop, oldLocalFragmentBase;
#ifdef XSLT_REFACTORED
xsltStylePreCompPtr info;
#endif
#ifdef WITH_DEBUGGER
int addCallResult = 0;
xmlNodePtr debuggedNode = NULL;
#endif
if (ctxt == NULL)
return;
#ifdef WITH_DEBUGGER
if (ctxt->debugStatus != XSLT_DEBUG_NONE) {
debuggedNode =
xsltDebuggerStartSequenceConstructor(ctxt, contextNode,
list, templ, &addCallResult);
if (debuggedNode == NULL)
return;
}
#endif
if (list == NULL)
return;
CHECK_STOPPED;
oldLocalFragmentTop = ctxt->localRVT;
oldInsert = insert = ctxt->insert;
oldInst = oldCurInst = ctxt->inst;
oldContextNode = ctxt->node;
/*
* Save current number of variables on the stack; new vars are popped when
* exiting.
*/
oldVarsNr = ctxt->varsNr;
/*
* Process the sequence constructor.
*/
cur = list;
while (cur != NULL) {
ctxt->inst = cur;
#ifdef WITH_DEBUGGER
switch (ctxt->debugStatus) {
case XSLT_DEBUG_RUN_RESTART:
case XSLT_DEBUG_QUIT:
break;
}
#endif
/*
* Test; we must have a valid insertion point.
*/
if (insert == NULL) {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: insert == NULL !\n"));
#endif
goto error;
}
#ifdef WITH_DEBUGGER
if ((ctxt->debugStatus != XSLT_DEBUG_NONE) && (debuggedNode != cur))
xslHandleDebugger(cur, contextNode, templ, ctxt);
#endif
#ifdef XSLT_REFACTORED
if (cur->type == XML_ELEMENT_NODE) {
info = (xsltStylePreCompPtr) cur->psvi;
/*
* We expect a compiled representation on:
* 1) XSLT instructions of this XSLT version (1.0)
* (with a few exceptions)
* 2) Literal result elements
* 3) Extension instructions
* 4) XSLT instructions of future XSLT versions
* (forwards-compatible mode).
*/
if (info == NULL) {
/*
* Handle the rare cases where we don't expect a compiled
* representation on an XSLT element.
*/
if (IS_XSLT_ELEM_FAST(cur) && IS_XSLT_NAME(cur, "message")) {
xsltMessage(ctxt, contextNode, cur);
goto skip_children;
}
/*
* Something really went wrong:
*/
xsltTransformError(ctxt, NULL, cur,
"Internal error in xsltApplySequenceConstructor(): "
"The element '%s' in the stylesheet has no compiled "
"representation.\n",
cur->name);
goto skip_children;
}
if (info->type == XSLT_FUNC_LITERAL_RESULT_ELEMENT) {
xsltStyleItemLRElementInfoPtr lrInfo =
(xsltStyleItemLRElementInfoPtr) info;
/*
* Literal result elements
* --------------------------------------------------------
*/
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt, XSLT_TRACE_APPLY_TEMPLATE,
xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: copy literal result "
"element '%s'\n", cur->name));
#endif
/*
* Copy the raw element-node.
* OLD: if ((copy = xsltShallowCopyElem(ctxt, cur, insert))
* == NULL)
* goto error;
*/
copy = xmlDocCopyNode(cur, insert->doc, 0);
if (copy == NULL) {
xsltTransformError(ctxt, NULL, cur,
"Internal error in xsltApplySequenceConstructor(): "
"Failed to copy literal result element '%s'.\n",
cur->name);
goto error;
} else {
/*
* Add the element-node to the result tree.
*/
copy->doc = ctxt->output;
copy = xsltAddChild(insert, copy);
/*
* Create effective namespaces declarations.
* OLD: xsltCopyNamespaceList(ctxt, copy, cur->nsDef);
*/
if (lrInfo->effectiveNs != NULL) {
xsltEffectiveNsPtr effNs = lrInfo->effectiveNs;
xmlNsPtr ns, lastns = NULL;
while (effNs != NULL) {
/*
* Avoid generating redundant namespace
* declarations; thus lookup if there is already
* such a ns-decl in the result.
*/
ns = xmlSearchNs(copy->doc, copy, effNs->prefix);
if ((ns != NULL) &&
(xmlStrEqual(ns->href, effNs->nsName)))
{
effNs = effNs->next;
continue;
}
ns = xmlNewNs(copy, effNs->nsName, effNs->prefix);
if (ns == NULL) {
xsltTransformError(ctxt, NULL, cur,
"Internal error in "
"xsltApplySequenceConstructor(): "
"Failed to copy a namespace "
"declaration.\n");
goto error;
}
if (lastns == NULL)
copy->nsDef = ns;
else
lastns->next =ns;
lastns = ns;
effNs = effNs->next;
}
}
/*
* NOTE that we don't need to apply ns-alising: this was
* already done at compile-time.
*/
if (cur->ns != NULL) {
/*
* If there's no such ns-decl in the result tree,
* then xsltGetSpecialNamespace() will
* create a ns-decl on the copied node.
*/
copy->ns = xsltGetSpecialNamespace(ctxt, cur,
cur->ns->href, cur->ns->prefix, copy);
} else {
/*
* Undeclare the default namespace if needed.
* This can be skipped, if the result element has
* no ns-decls, in which case the result element
* obviously does not declare a default namespace;
* AND there's either no parent, or the parent
* element is in no namespace; this means there's no
* default namespace is scope to care about.
*
* REVISIT: This might result in massive
* generation of ns-decls if nodes in a default
* namespaces are mixed with nodes in no namespace.
*
*/
if (copy->nsDef ||
((insert != NULL) &&
(insert->type == XML_ELEMENT_NODE) &&
(insert->ns != NULL)))
{
xsltGetSpecialNamespace(ctxt, cur,
NULL, NULL, copy);
}
}
}
/*
* SPEC XSLT 2.0 "Each attribute of the literal result
* element, other than an attribute in the XSLT namespace,
* is processed to produce an attribute for the element in
* the result tree."
* NOTE: See bug #341325.
*/
if (cur->properties != NULL) {
xsltAttrListTemplateProcess(ctxt, copy, cur->properties);
}
} else if (IS_XSLT_ELEM_FAST(cur)) {
/*
* XSLT instructions
* --------------------------------------------------------
*/
if (info->type == XSLT_FUNC_UNKOWN_FORWARDS_COMPAT) {
/*
* We hit an unknown XSLT element.
* Try to apply one of the fallback cases.
*/
ctxt->insert = insert;
if (!xsltApplyFallbacks(ctxt, contextNode, cur)) {
xsltTransformError(ctxt, NULL, cur,
"The is no fallback behaviour defined for "
"the unknown XSLT element '%s'.\n",
cur->name);
}
ctxt->insert = oldInsert;
} else if (info->func != NULL) {
/*
* Execute the XSLT instruction.
*/
ctxt->insert = insert;
info->func(ctxt, contextNode, cur,
(xsltElemPreCompPtr) info);
/*
* Cleanup temporary tree fragments.
*/
if (oldLocalFragmentTop != ctxt->localRVT)
xsltReleaseLocalRVTs(ctxt, oldLocalFragmentTop);
ctxt->insert = oldInsert;
} else if (info->type == XSLT_FUNC_VARIABLE) {
xsltStackElemPtr tmpvar = ctxt->vars;
xsltParseStylesheetVariable(ctxt, cur);
if (tmpvar != ctxt->vars) {
/*
* TODO: Using a @tmpvar is an annoying workaround, but
* the current mechanisms do not provide any other way
* of knowing if the var was really pushed onto the
* stack.
*/
ctxt->vars->level = level;
}
} else if (info->type == XSLT_FUNC_MESSAGE) {
/*
* TODO: Won't be hit, since we don't compile xsl:message.
*/
xsltMessage(ctxt, contextNode, cur);
} else {
xsltTransformError(ctxt, NULL, cur,
"Unexpected XSLT element '%s'.\n", cur->name);
}
goto skip_children;
} else {
xsltTransformFunction func;
/*
* Extension intructions (elements)
* --------------------------------------------------------
*/
if (cur->psvi == xsltExtMarker) {
/*
* The xsltExtMarker was set during the compilation
* of extension instructions if there was no registered
* handler for this specific extension function at
* compile-time.
* Libxslt will now lookup if a handler is
* registered in the context of this transformation.
*/
func = (xsltTransformFunction)
xsltExtElementLookup(ctxt, cur->name, cur->ns->href);
} else
func = ((xsltElemPreCompPtr) cur->psvi)->func;
if (func == NULL) {
/*
* No handler available.
* Try to execute fallback behaviour via xsl:fallback.
*/
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt, XSLT_TRACE_APPLY_TEMPLATE,
xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: unknown extension %s\n",
cur->name));
#endif
ctxt->insert = insert;
if (!xsltApplyFallbacks(ctxt, contextNode, cur)) {
xsltTransformError(ctxt, NULL, cur,
"Unknown extension instruction '{%s}%s'.\n",
cur->ns->href, cur->name);
}
ctxt->insert = oldInsert;
} else {
/*
* Execute the handler-callback.
*/
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: extension construct %s\n",
cur->name));
#endif
ctxt->insert = insert;
/*
* We need the fragment base for extension instructions
* which return values (like EXSLT's function).
*/
oldLocalFragmentBase = ctxt->localRVTBase;
ctxt->localRVTBase = NULL;
func(ctxt, contextNode, cur, cur->psvi);
ctxt->localRVTBase = oldLocalFragmentBase;
/*
* Cleanup temporary tree fragments.
*/
if (oldLocalFragmentTop != ctxt->localRVT)
xsltReleaseLocalRVTs(ctxt, oldLocalFragmentTop);
ctxt->insert = oldInsert;
}
goto skip_children;
}
} else if (XSLT_IS_TEXT_NODE(cur)) {
/*
* Text
* ------------------------------------------------------------
*/
#ifdef WITH_XSLT_DEBUG_PROCESS
if (cur->name == xmlStringTextNoenc) {
XSLT_TRACE(ctxt, XSLT_TRACE_APPLY_TEMPLATE,
xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: copy unescaped text '%s'\n",
cur->content));
} else {
XSLT_TRACE(ctxt, XSLT_TRACE_APPLY_TEMPLATE,
xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: copy text '%s'\n",
cur->content));
}
#endif
if (xsltCopyText(ctxt, insert, cur, ctxt->internalized) == NULL)
goto error;
}
#else /* XSLT_REFACTORED */
if (IS_XSLT_ELEM(cur)) {
/*
* This is an XSLT node
*/
xsltStylePreCompPtr info = (xsltStylePreCompPtr) cur->psvi;
if (info == NULL) {
if (IS_XSLT_NAME(cur, "message")) {
xsltMessage(ctxt, contextNode, cur);
} else {
/*
* That's an error try to apply one of the fallback cases
*/
ctxt->insert = insert;
if (!xsltApplyFallbacks(ctxt, contextNode, cur)) {
xsltGenericError(xsltGenericErrorContext,
"xsltApplySequenceConstructor: %s was not compiled\n",
cur->name);
}
ctxt->insert = oldInsert;
}
goto skip_children;
}
if (info->func != NULL) {
oldCurInst = ctxt->inst;
ctxt->inst = cur;
ctxt->insert = insert;
oldLocalFragmentBase = ctxt->localRVTBase;
ctxt->localRVTBase = NULL;
info->func(ctxt, contextNode, cur, (xsltElemPreCompPtr) info);
ctxt->localRVTBase = oldLocalFragmentBase;
/*
* Cleanup temporary tree fragments.
*/
if (oldLocalFragmentTop != ctxt->localRVT)
xsltReleaseLocalRVTs(ctxt, oldLocalFragmentTop);
ctxt->insert = oldInsert;
ctxt->inst = oldCurInst;
goto skip_children;
}
if (IS_XSLT_NAME(cur, "variable")) {
xsltStackElemPtr tmpvar = ctxt->vars;
oldCurInst = ctxt->inst;
ctxt->inst = cur;
xsltParseStylesheetVariable(ctxt, cur);
ctxt->inst = oldCurInst;
if (tmpvar != ctxt->vars) {
/*
* TODO: Using a @tmpvar is an annoying workaround, but
* the current mechanisms do not provide any other way
* of knowing if the var was really pushed onto the
* stack.
*/
ctxt->vars->level = level;
}
} else if (IS_XSLT_NAME(cur, "message")) {
xsltMessage(ctxt, contextNode, cur);
} else {
xsltTransformError(ctxt, NULL, cur,
"Unexpected XSLT element '%s'.\n", cur->name);
}
goto skip_children;
} else if ((cur->type == XML_TEXT_NODE) ||
(cur->type == XML_CDATA_SECTION_NODE)) {
/*
* This text comes from the stylesheet
* For stylesheets, the set of whitespace-preserving
* element names consists of just xsl:text.
*/
#ifdef WITH_XSLT_DEBUG_PROCESS
if (cur->type == XML_CDATA_SECTION_NODE) {
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: copy CDATA text %s\n",
cur->content));
} else if (cur->name == xmlStringTextNoenc) {
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: copy unescaped text %s\n",
cur->content));
} else {
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: copy text %s\n",
cur->content));
}
#endif
if (xsltCopyText(ctxt, insert, cur, ctxt->internalized) == NULL)
goto error;
} else if ((cur->type == XML_ELEMENT_NODE) &&
(cur->ns != NULL) && (cur->psvi != NULL)) {
xsltTransformFunction function;
oldCurInst = ctxt->inst;
ctxt->inst = cur;
/*
* Flagged as an extension element
*/
if (cur->psvi == xsltExtMarker)
function = (xsltTransformFunction)
xsltExtElementLookup(ctxt, cur->name, cur->ns->href);
else
function = ((xsltElemPreCompPtr) cur->psvi)->func;
if (function == NULL) {
xmlNodePtr child;
int found = 0;
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: unknown extension %s\n",
cur->name));
#endif
/*
* Search if there are fallbacks
*/
child = cur->children;
while (child != NULL) {
if ((IS_XSLT_ELEM(child)) &&
(IS_XSLT_NAME(child, "fallback")))
{
found = 1;
xsltApplySequenceConstructor(ctxt, contextNode,
child->children, NULL);
}
child = child->next;
}
if (!found) {
xsltTransformError(ctxt, NULL, cur,
"xsltApplySequenceConstructor: failed to find extension %s\n",
cur->name);
}
} else {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: extension construct %s\n",
cur->name));
#endif
ctxt->insert = insert;
/*
* We need the fragment base for extension instructions
* which return values (like EXSLT's function).
*/
oldLocalFragmentBase = ctxt->localRVTBase;
ctxt->localRVTBase = NULL;
function(ctxt, contextNode, cur, cur->psvi);
/*
* Cleanup temporary tree fragments.
*/
if (oldLocalFragmentTop != ctxt->localRVT)
xsltReleaseLocalRVTs(ctxt, oldLocalFragmentTop);
ctxt->localRVTBase = oldLocalFragmentBase;
ctxt->insert = oldInsert;
}
ctxt->inst = oldCurInst;
goto skip_children;
} else if (cur->type == XML_ELEMENT_NODE) {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplySequenceConstructor: copy node %s\n",
cur->name));
#endif
oldCurInst = ctxt->inst;
ctxt->inst = cur;
if ((copy = xsltShallowCopyElem(ctxt, cur, insert, 1)) == NULL)
goto error;
/*
* Add extra namespaces inherited from the current template
* if we are in the first level children and this is a
* "real" template.
*/
if ((templ != NULL) && (oldInsert == insert) &&
(ctxt->templ != NULL) && (ctxt->templ->inheritedNs != NULL)) {
int i;
xmlNsPtr ns, ret;
for (i = 0; i < ctxt->templ->inheritedNsNr; i++) {
const xmlChar *URI = NULL;
xsltStylesheetPtr style;
ns = ctxt->templ->inheritedNs[i];
/* Note that the XSLT namespace was already excluded
* in xsltGetInheritedNsList().
*/
#if 0
if (xmlStrEqual(ns->href, XSLT_NAMESPACE))
continue;
#endif
style = ctxt->style;
while (style != NULL) {
if (style->nsAliases != NULL)
URI = (const xmlChar *)
xmlHashLookup(style->nsAliases, ns->href);
if (URI != NULL)
break;
style = xsltNextImport(style);
}
if (URI == UNDEFINED_DEFAULT_NS)
continue;
if (URI == NULL)
URI = ns->href;
/*
* TODO: The following will still be buggy for the
* non-refactored code.
*/
ret = xmlSearchNs(copy->doc, copy, ns->prefix);
if ((ret == NULL) || (!xmlStrEqual(ret->href, URI)))
{
xmlNewNs(copy, URI, ns->prefix);
}
}
if (copy->ns != NULL) {
/*
* Fix the node namespace if needed
*/
copy->ns = xsltGetNamespace(ctxt, cur, copy->ns, copy);
}
}
/*
* all the attributes are directly inherited
*/
if (cur->properties != NULL) {
xsltAttrListTemplateProcess(ctxt, copy, cur->properties);
}
ctxt->inst = oldCurInst;
}
#endif /* else of XSLT_REFACTORED */
/*
* Descend into content in document order.
*/
if (cur->children != NULL) {
if (cur->children->type != XML_ENTITY_DECL) {
cur = cur->children;
level++;
if (copy != NULL)
insert = copy;
continue;
}
}
skip_children:
/*
* If xslt:message was just processed, we might have hit a
* terminate='yes'; if so, then break the loop and clean up.
* TODO: Do we need to check this also before trying to descend
* into the content?
*/
if (ctxt->state == XSLT_STATE_STOPPED)
break;
if (cur->next != NULL) {
cur = cur->next;
continue;
}
do {
cur = cur->parent;
level--;
/*
* Pop variables/params (xsl:variable and xsl:param).
*/
if ((ctxt->varsNr > oldVarsNr) && (ctxt->vars->level > level)) {
xsltLocalVariablePop(ctxt, oldVarsNr, level);
}
insert = insert->parent;
if (cur == NULL)
break;
if (cur == list->parent) {
cur = NULL;
break;
}
if (cur->next != NULL) {
cur = cur->next;
break;
}
} while (cur != NULL);
}
error:
/*
* In case of errors: pop remaining variables.
*/
if (ctxt->varsNr > oldVarsNr)
xsltLocalVariablePop(ctxt, oldVarsNr, -1);
ctxt->node = oldContextNode;
ctxt->inst = oldInst;
ctxt->insert = oldInsert;
#ifdef WITH_DEBUGGER
if ((ctxt->debugStatus != XSLT_DEBUG_NONE) && (addCallResult)) {
xslDropCall();
}
#endif
}
/*
* xsltApplyXSLTTemplate:
* @ctxt: a XSLT transformation context
* @contextNode: the node in the source tree.
* @list: the nodes of a sequence constructor;
* (plus leading xsl:param elements)
* @templ: the compiled xsl:template declaration;
* NULL if a sequence constructor
* @withParams: a set of caller-parameters (xsl:with-param) or NULL
*
* Called by:
* - xsltApplyImports()
* - xsltCallTemplate()
* - xsltDefaultProcessOneNode()
* - xsltProcessOneNode()
*/
static void
xsltApplyXSLTTemplate(xsltTransformContextPtr ctxt,
xmlNodePtr contextNode,
xmlNodePtr list,
xsltTemplatePtr templ,
xsltStackElemPtr withParams)
{
int oldVarsBase = 0;
long start = 0;
xmlNodePtr cur;
xsltStackElemPtr tmpParam = NULL;
xmlDocPtr oldUserFragmentTop, oldLocalFragmentTop;
#ifdef XSLT_REFACTORED
xsltStyleItemParamPtr iparam;
#else
xsltStylePreCompPtr iparam;
#endif
#ifdef WITH_DEBUGGER
int addCallResult = 0;
#endif
if (ctxt == NULL)
return;
if (templ == NULL) {
xsltTransformError(ctxt, NULL, list,
"xsltApplyXSLTTemplate: Bad arguments; @templ is mandatory.\n");
return;
}
#ifdef WITH_DEBUGGER
if (ctxt->debugStatus != XSLT_DEBUG_NONE) {
if (xsltDebuggerStartSequenceConstructor(ctxt, contextNode,
list, templ, &addCallResult) == NULL)
return;
}
#endif
if (list == NULL)
return;
CHECK_STOPPED;
/*
* Check for infinite recursion: stop if the maximum of nested templates
* is excceeded. Adjust xsltMaxDepth if you need more.
*/
if (ctxt->templNr >= ctxt->maxTemplateDepth)
{
xsltTransformError(ctxt, NULL, list,
"xsltApplyXSLTTemplate: A potential infinite template recursion "
"was detected.\n"
"You can adjust xsltMaxDepth (--maxdepth) in order to "
"raise the maximum number of nested template calls and "
"variables/params (currently set to %d).\n",
ctxt->maxTemplateDepth);
xsltDebug(ctxt, contextNode, list, NULL);
return;
}
if (ctxt->varsNr >= ctxt->maxTemplateVars)
{
xsltTransformError(ctxt, NULL, list,
"xsltApplyXSLTTemplate: A potential infinite template recursion "
"was detected.\n"
"You can adjust maxTemplateVars (--maxvars) in order to "
"raise the maximum number of variables/params (currently set to %d).\n",
ctxt->maxTemplateVars);
xsltDebug(ctxt, contextNode, list, NULL);
return;
}
oldUserFragmentTop = ctxt->tmpRVT;
ctxt->tmpRVT = NULL;
oldLocalFragmentTop = ctxt->localRVT;
/*
* Initiate a distinct scope of local params/variables.
*/
oldVarsBase = ctxt->varsBase;
ctxt->varsBase = ctxt->varsNr;
ctxt->node = contextNode;
if (ctxt->profile) {
templ->nbCalls++;
start = xsltTimestamp();
profPush(ctxt, 0);
profCallgraphAdd(templ, ctxt->templ);
}
/*
* Push the xsl:template declaration onto the stack.
*/
templPush(ctxt, templ);
#ifdef WITH_XSLT_DEBUG_PROCESS
if (templ->name != NULL)
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"applying xsl:template '%s'\n", templ->name));
#endif
/*
* Process xsl:param instructions and skip those elements for
* further processing.
*/
cur = list;
do {
if (cur->type == XML_TEXT_NODE) {
cur = cur->next;
continue;
}
if ((cur->type != XML_ELEMENT_NODE) ||
(cur->name[0] != 'p') ||
(cur->psvi == NULL) ||
(! xmlStrEqual(cur->name, BAD_CAST "param")) ||
(! IS_XSLT_ELEM(cur)))
{
break;
}
list = cur->next;
#ifdef XSLT_REFACTORED
iparam = (xsltStyleItemParamPtr) cur->psvi;
#else
iparam = (xsltStylePreCompPtr) cur->psvi;
#endif
/*
* Substitute xsl:param for a given xsl:with-param.
* Since the XPath expression will reference the params/vars
* by index, we need to slot the xsl:with-params in the
* order of encountered xsl:params to keep the sequence of
* params/variables in the stack exactly as it was at
* compile time,
*/
tmpParam = NULL;
if (withParams) {
tmpParam = withParams;
do {
if ((tmpParam->name == (iparam->name)) &&
(tmpParam->nameURI == (iparam->ns)))
{
/*
* Push the caller-parameter.
*/
xsltLocalVariablePush(ctxt, tmpParam, -1);
break;
}
tmpParam = tmpParam->next;
} while (tmpParam != NULL);
}
/*
* Push the xsl:param.
*/
if (tmpParam == NULL) {
/*
* Note that we must assume that the added parameter
* has a @depth of 0.
*/
xsltParseStylesheetParam(ctxt, cur);
}
cur = cur->next;
} while (cur != NULL);
/*
* Process the sequence constructor.
*/
xsltApplySequenceConstructor(ctxt, contextNode, list, templ);
/*
* Remove remaining xsl:param and xsl:with-param items from
* the stack. Don't free xsl:with-param items.
*/
if (ctxt->varsNr > ctxt->varsBase)
xsltTemplateParamsCleanup(ctxt);
ctxt->varsBase = oldVarsBase;
/*
* Clean up remaining local tree fragments.
* This also frees fragments which are the result of
* extension instructions. Should normally not be hit; but
* just for the case xsltExtensionInstructionResultFinalize()
* was not called by the extension author.
*/
if (oldLocalFragmentTop != ctxt->localRVT) {
xmlDocPtr curdoc = ctxt->localRVT, tmp;
do {
tmp = curdoc;
curdoc = (xmlDocPtr) curdoc->next;
/* Need to housekeep localRVTBase */
if (tmp == ctxt->localRVTBase)
ctxt->localRVTBase = curdoc;
if (tmp->prev)
tmp->prev->next = (xmlNodePtr) curdoc;
if (curdoc)
curdoc->prev = tmp->prev;
xsltReleaseRVT(ctxt, tmp);
} while (curdoc != oldLocalFragmentTop);
}
ctxt->localRVT = oldLocalFragmentTop;
/*
* Release user-created fragments stored in the scope
* of xsl:template. Note that this mechanism is deprecated:
* user code should now use xsltRegisterLocalRVT() instead
* of the obsolete xsltRegisterTmpRVT().
*/
if (ctxt->tmpRVT) {
xmlDocPtr curdoc = ctxt->tmpRVT, tmp;
while (curdoc != NULL) {
tmp = curdoc;
curdoc = (xmlDocPtr) curdoc->next;
xsltReleaseRVT(ctxt, tmp);
}
}
ctxt->tmpRVT = oldUserFragmentTop;
/*
* Pop the xsl:template declaration from the stack.
*/
templPop(ctxt);
if (ctxt->profile) {
long spent, child, total, end;
end = xsltTimestamp();
child = profPop(ctxt);
total = end - start;
spent = total - child;
if (spent <= 0) {
/*
* Not possible unless the original calibration failed
* we can try to correct it on the fly.
*/
xsltCalibrateAdjust(spent);
spent = 0;
}
templ->time += spent;
if (ctxt->profNr > 0)
ctxt->profTab[ctxt->profNr - 1] += total;
}
#ifdef WITH_DEBUGGER
if ((ctxt->debugStatus != XSLT_DEBUG_NONE) && (addCallResult)) {
xslDropCall();
}
#endif
}
/**
* xsltApplyOneTemplate:
* @ctxt: a XSLT process context
* @contextNode: the node in the source tree.
* @list: the nodes of a sequence constructor
* @templ: not used
* @params: a set of parameters (xsl:param) or NULL
*
* Processes a sequence constructor on the current node in the source tree.
*
* @params are the already computed variable stack items; this function
* pushes them on the variable stack, and pops them before exiting; it's
* left to the caller to free or reuse @params afterwards. The initial
* states of the variable stack will always be restored before this
* function exits.
* NOTE that this does *not* initiate a new distinct variable scope; i.e.
* variables already on the stack are visible to the process. The caller's
* side needs to start a new variable scope if needed (e.g. in exsl:function).
*
* @templ is obsolete and not used anymore (e.g. <exslt:function> does not
* provide a @templ); a non-NULL @templ might raise an error in the future.
*
* BIG NOTE: This function is not intended to process the content of an
* xsl:template; it does not expect xsl:param instructions in @list and
* will report errors if found.
*
* Called by:
* - xsltEvalVariable() (variables.c)
* - exsltFuncFunctionFunction() (libexsl/functions.c)
*/
void
xsltApplyOneTemplate(xsltTransformContextPtr ctxt,
xmlNodePtr contextNode,
xmlNodePtr list,
xsltTemplatePtr templ ATTRIBUTE_UNUSED,
xsltStackElemPtr params)
{
if ((ctxt == NULL) || (list == NULL))
return;
CHECK_STOPPED;
if (params) {
/*
* This code should be obsolete - was previously used
* by libexslt/functions.c, but due to bug 381319 the
* logic there was changed.
*/
int oldVarsNr = ctxt->varsNr;
/*
* Push the given xsl:param(s) onto the variable stack.
*/
while (params != NULL) {
xsltLocalVariablePush(ctxt, params, -1);
params = params->next;
}
xsltApplySequenceConstructor(ctxt, contextNode, list, templ);
/*
* Pop the given xsl:param(s) from the stack but don't free them.
*/
xsltLocalVariablePop(ctxt, oldVarsNr, -2);
} else
xsltApplySequenceConstructor(ctxt, contextNode, list, templ);
}
/************************************************************************
* *
* XSLT-1.1 extensions *
* *
************************************************************************/
/**
* xsltDocumentElem:
* @ctxt: an XSLT processing context
* @node: The current node
* @inst: the instruction in the stylesheet
* @castedComp: precomputed information
*
* Process an EXSLT/XSLT-1.1 document element
*/
void
xsltDocumentElem(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst, xsltStylePreCompPtr castedComp)
{
#ifdef XSLT_REFACTORED
xsltStyleItemDocumentPtr comp = (xsltStyleItemDocumentPtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
xsltStylesheetPtr style = NULL;
int ret;
xmlChar *filename = NULL, *prop, *elements;
xmlChar *element, *end;
xmlDocPtr res = NULL;
xmlDocPtr oldOutput;
xmlNodePtr oldInsert, root;
const char *oldOutputFile;
xsltOutputType oldType;
xmlChar *URL = NULL;
const xmlChar *method;
const xmlChar *doctypePublic;
const xmlChar *doctypeSystem;
const xmlChar *version;
const xmlChar *encoding;
int redirect_write_append = 0;
if ((ctxt == NULL) || (node == NULL) || (inst == NULL) || (comp == NULL))
return;
if (comp->filename == NULL) {
if (xmlStrEqual(inst->name, (const xmlChar *) "output")) {
/*
* The element "output" is in the namespace XSLT_SAXON_NAMESPACE
* (http://icl.com/saxon)
* The @file is in no namespace.
*/
#ifdef WITH_XSLT_DEBUG_EXTRA
xsltGenericDebug(xsltGenericDebugContext,
"Found saxon:output extension\n");
#endif
URL = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "file",
XSLT_SAXON_NAMESPACE);
if (URL == NULL)
URL = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "href",
XSLT_SAXON_NAMESPACE);
} else if (xmlStrEqual(inst->name, (const xmlChar *) "write")) {
#ifdef WITH_XSLT_DEBUG_EXTRA
xsltGenericDebug(xsltGenericDebugContext,
"Found xalan:write extension\n");
#endif
URL = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *)
"select",
XSLT_XALAN_NAMESPACE);
if (URL != NULL) {
xmlXPathCompExprPtr cmp;
xmlChar *val;
/*
* Trying to handle bug #59212
* The value of the "select" attribute is an
* XPath expression.
* (see http://xml.apache.org/xalan-j/extensionslib.html#redirect)
*/
cmp = xmlXPathCompile(URL);
val = xsltEvalXPathString(ctxt, cmp);
xmlXPathFreeCompExpr(cmp);
xmlFree(URL);
URL = val;
}
if (URL == NULL)
URL = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *)
"file",
XSLT_XALAN_NAMESPACE);
if (URL == NULL)
URL = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *)
"href",
XSLT_XALAN_NAMESPACE);
} else if (xmlStrEqual(inst->name, (const xmlChar *) "document")) {
URL = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "href",
NULL);
}
} else {
URL = xmlStrdup(comp->filename);
}
if (URL == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsltDocumentElem: href/URI-Reference not found\n");
return;
}
/*
* If the computation failed, it's likely that the URL wasn't escaped
*/
filename = xmlBuildURI(URL, (const xmlChar *) ctxt->outputFile);
if (filename == NULL) {
xmlChar *escURL;
escURL=xmlURIEscapeStr(URL, BAD_CAST ":/.?,");
if (escURL != NULL) {
filename = xmlBuildURI(escURL, (const xmlChar *) ctxt->outputFile);
xmlFree(escURL);
}
}
if (filename == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsltDocumentElem: URL computation failed for %s\n",
URL);
xmlFree(URL);
return;
}
/*
* Security checking: can we write to this resource
*/
if (ctxt->sec != NULL) {
ret = xsltCheckWrite(ctxt->sec, ctxt, filename);
if (ret == 0) {
xsltTransformError(ctxt, NULL, inst,
"xsltDocumentElem: write rights for %s denied\n",
filename);
xmlFree(URL);
xmlFree(filename);
return;
}
}
oldOutputFile = ctxt->outputFile;
oldOutput = ctxt->output;
oldInsert = ctxt->insert;
oldType = ctxt->type;
ctxt->outputFile = (const char *) filename;
style = xsltNewStylesheet();
if (style == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsltDocumentElem: out of memory\n");
goto error;
}
/*
* Version described in 1.1 draft allows full parameterization
* of the output.
*/
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "version",
NULL);
if (prop != NULL) {
if (style->version != NULL)
xmlFree(style->version);
style->version = prop;
}
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "encoding",
NULL);
if (prop != NULL) {
if (style->encoding != NULL)
xmlFree(style->encoding);
style->encoding = prop;
}
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "method",
NULL);
if (prop != NULL) {
const xmlChar *URI;
if (style->method != NULL)
xmlFree(style->method);
style->method = NULL;
if (style->methodURI != NULL)
xmlFree(style->methodURI);
style->methodURI = NULL;
URI = xsltGetQNameURI(inst, &prop);
if (prop == NULL) {
if (style != NULL) style->errors++;
} else if (URI == NULL) {
if ((xmlStrEqual(prop, (const xmlChar *) "xml")) ||
(xmlStrEqual(prop, (const xmlChar *) "html")) ||
(xmlStrEqual(prop, (const xmlChar *) "text"))) {
style->method = prop;
} else {
xsltTransformError(ctxt, NULL, inst,
"invalid value for method: %s\n", prop);
if (style != NULL) style->warnings++;
}
} else {
style->method = prop;
style->methodURI = xmlStrdup(URI);
}
}
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *)
"doctype-system", NULL);
if (prop != NULL) {
if (style->doctypeSystem != NULL)
xmlFree(style->doctypeSystem);
style->doctypeSystem = prop;
}
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *)
"doctype-public", NULL);
if (prop != NULL) {
if (style->doctypePublic != NULL)
xmlFree(style->doctypePublic);
style->doctypePublic = prop;
}
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "standalone",
NULL);
if (prop != NULL) {
if (xmlStrEqual(prop, (const xmlChar *) "yes")) {
style->standalone = 1;
} else if (xmlStrEqual(prop, (const xmlChar *) "no")) {
style->standalone = 0;
} else {
xsltTransformError(ctxt, NULL, inst,
"invalid value for standalone: %s\n",
prop);
if (style != NULL) style->warnings++;
}
xmlFree(prop);
}
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "indent",
NULL);
if (prop != NULL) {
if (xmlStrEqual(prop, (const xmlChar *) "yes")) {
style->indent = 1;
} else if (xmlStrEqual(prop, (const xmlChar *) "no")) {
style->indent = 0;
} else {
xsltTransformError(ctxt, NULL, inst,
"invalid value for indent: %s\n", prop);
if (style != NULL) style->warnings++;
}
xmlFree(prop);
}
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *)
"omit-xml-declaration",
NULL);
if (prop != NULL) {
if (xmlStrEqual(prop, (const xmlChar *) "yes")) {
style->omitXmlDeclaration = 1;
} else if (xmlStrEqual(prop, (const xmlChar *) "no")) {
style->omitXmlDeclaration = 0;
} else {
xsltTransformError(ctxt, NULL, inst,
"invalid value for omit-xml-declaration: %s\n",
prop);
if (style != NULL) style->warnings++;
}
xmlFree(prop);
}
elements = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *)
"cdata-section-elements",
NULL);
if (elements != NULL) {
if (style->stripSpaces == NULL)
style->stripSpaces = xmlHashCreate(10);
if (style->stripSpaces == NULL)
return;
element = elements;
while (*element != 0) {
while (IS_BLANK_CH(*element))
element++;
if (*element == 0)
break;
end = element;
while ((*end != 0) && (!IS_BLANK_CH(*end)))
end++;
element = xmlStrndup(element, end - element);
if (element) {
const xmlChar *URI;
#ifdef WITH_XSLT_DEBUG_PARSING
xsltGenericDebug(xsltGenericDebugContext,
"add cdata section output element %s\n",
element);
#endif
URI = xsltGetQNameURI(inst, &element);
xmlHashAddEntry2(style->stripSpaces, element, URI,
(xmlChar *) "cdata");
xmlFree(element);
}
element = end;
}
xmlFree(elements);
}
/*
* Create a new document tree and process the element template
*/
XSLT_GET_IMPORT_PTR(method, style, method)
XSLT_GET_IMPORT_PTR(doctypePublic, style, doctypePublic)
XSLT_GET_IMPORT_PTR(doctypeSystem, style, doctypeSystem)
XSLT_GET_IMPORT_PTR(version, style, version)
XSLT_GET_IMPORT_PTR(encoding, style, encoding)
if ((method != NULL) &&
(!xmlStrEqual(method, (const xmlChar *) "xml"))) {
if (xmlStrEqual(method, (const xmlChar *) "html")) {
ctxt->type = XSLT_OUTPUT_HTML;
if (((doctypePublic != NULL) || (doctypeSystem != NULL)))
res = htmlNewDoc(doctypeSystem, doctypePublic);
else {
if (version != NULL) {
#ifdef XSLT_GENERATE_HTML_DOCTYPE
xsltGetHTMLIDs(version, &doctypePublic, &doctypeSystem);
#endif
}
res = htmlNewDocNoDtD(doctypeSystem, doctypePublic);
}
if (res == NULL)
goto error;
res->dict = ctxt->dict;
xmlDictReference(res->dict);
} else if (xmlStrEqual(method, (const xmlChar *) "xhtml")) {
xsltTransformError(ctxt, NULL, inst,
"xsltDocumentElem: unsupported method xhtml\n",
style->method);
ctxt->type = XSLT_OUTPUT_HTML;
res = htmlNewDocNoDtD(doctypeSystem, doctypePublic);
if (res == NULL)
goto error;
res->dict = ctxt->dict;
xmlDictReference(res->dict);
} else if (xmlStrEqual(method, (const xmlChar *) "text")) {
ctxt->type = XSLT_OUTPUT_TEXT;
res = xmlNewDoc(style->version);
if (res == NULL)
goto error;
res->dict = ctxt->dict;
xmlDictReference(res->dict);
#ifdef WITH_XSLT_DEBUG
xsltGenericDebug(xsltGenericDebugContext,
"reusing transformation dict for output\n");
#endif
} else {
xsltTransformError(ctxt, NULL, inst,
"xsltDocumentElem: unsupported method %s\n",
style->method);
goto error;
}
} else {
ctxt->type = XSLT_OUTPUT_XML;
res = xmlNewDoc(style->version);
if (res == NULL)
goto error;
res->dict = ctxt->dict;
xmlDictReference(res->dict);
#ifdef WITH_XSLT_DEBUG
xsltGenericDebug(xsltGenericDebugContext,
"reusing transformation dict for output\n");
#endif
}
res->charset = XML_CHAR_ENCODING_UTF8;
if (encoding != NULL)
res->encoding = xmlStrdup(encoding);
ctxt->output = res;
ctxt->insert = (xmlNodePtr) res;
xsltApplySequenceConstructor(ctxt, node, inst->children, NULL);
/*
* Do some post processing work depending on the generated output
*/
root = xmlDocGetRootElement(res);
if (root != NULL) {
const xmlChar *doctype = NULL;
if ((root->ns != NULL) && (root->ns->prefix != NULL))
doctype = xmlDictQLookup(ctxt->dict, root->ns->prefix, root->name);
if (doctype == NULL)
doctype = root->name;
/*
* Apply the default selection of the method
*/
if ((method == NULL) &&
(root->ns == NULL) &&
(!xmlStrcasecmp(root->name, (const xmlChar *) "html"))) {
xmlNodePtr tmp;
tmp = res->children;
while ((tmp != NULL) && (tmp != root)) {
if (tmp->type == XML_ELEMENT_NODE)
break;
if ((tmp->type == XML_TEXT_NODE) && (!xmlIsBlankNode(tmp)))
break;
tmp = tmp->next;
}
if (tmp == root) {
ctxt->type = XSLT_OUTPUT_HTML;
res->type = XML_HTML_DOCUMENT_NODE;
if (((doctypePublic != NULL) || (doctypeSystem != NULL))) {
res->intSubset = xmlCreateIntSubset(res, doctype,
doctypePublic,
doctypeSystem);
#ifdef XSLT_GENERATE_HTML_DOCTYPE
} else if (version != NULL) {
xsltGetHTMLIDs(version, &doctypePublic,
&doctypeSystem);
if (((doctypePublic != NULL) || (doctypeSystem != NULL)))
res->intSubset =
xmlCreateIntSubset(res, doctype,
doctypePublic,
doctypeSystem);
#endif
}
}
}
if (ctxt->type == XSLT_OUTPUT_XML) {
XSLT_GET_IMPORT_PTR(doctypePublic, style, doctypePublic)
XSLT_GET_IMPORT_PTR(doctypeSystem, style, doctypeSystem)
if (((doctypePublic != NULL) || (doctypeSystem != NULL)))
res->intSubset = xmlCreateIntSubset(res, doctype,
doctypePublic,
doctypeSystem);
}
}
/*
* Calls to redirect:write also take an optional attribute append.
* Attribute append="true|yes" which will attempt to simply append
* to an existing file instead of always opening a new file. The
* default behavior of always overwriting the file still happens
* if we do not specify append.
* Note that append use will forbid use of remote URI target.
*/
prop = xsltEvalAttrValueTemplate(ctxt, inst, (const xmlChar *)"append",
NULL);
if (prop != NULL) {
if (xmlStrEqual(prop, (const xmlChar *) "true") ||
xmlStrEqual(prop, (const xmlChar *) "yes")) {
style->omitXmlDeclaration = 1;
redirect_write_append = 1;
} else
style->omitXmlDeclaration = 0;
xmlFree(prop);
}
if (redirect_write_append) {
FILE *f;
f = fopen((const char *) filename, "ab");
if (f == NULL) {
ret = -1;
} else {
ret = xsltSaveResultToFile(f, res, style);
fclose(f);
}
} else {
ret = xsltSaveResultToFilename((const char *) filename, res, style, 0);
}
if (ret < 0) {
xsltTransformError(ctxt, NULL, inst,
"xsltDocumentElem: unable to save to %s\n",
filename);
ctxt->state = XSLT_STATE_ERROR;
#ifdef WITH_XSLT_DEBUG_EXTRA
} else {
xsltGenericDebug(xsltGenericDebugContext,
"Wrote %d bytes to %s\n", ret, filename);
#endif
}
error:
ctxt->output = oldOutput;
ctxt->insert = oldInsert;
ctxt->type = oldType;
ctxt->outputFile = oldOutputFile;
if (URL != NULL)
xmlFree(URL);
if (filename != NULL)
xmlFree(filename);
if (style != NULL)
xsltFreeStylesheet(style);
if (res != NULL)
xmlFreeDoc(res);
}
/************************************************************************
* *
* Most of the XSLT-1.0 transformations *
* *
************************************************************************/
/**
* xsltSort:
* @ctxt: a XSLT process context
* @node: the node in the source tree.
* @inst: the xslt sort node
* @comp: precomputed information
*
* function attached to xsl:sort nodes, but this should not be
* called directly
*/
void
xsltSort(xsltTransformContextPtr ctxt,
xmlNodePtr node ATTRIBUTE_UNUSED, xmlNodePtr inst,
xsltStylePreCompPtr comp) {
if (comp == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:sort : compilation failed\n");
return;
}
xsltTransformError(ctxt, NULL, inst,
"xsl:sort : improper use this should not be reached\n");
}
/**
* xsltCopy:
* @ctxt: an XSLT process context
* @node: the node in the source tree
* @inst: the element node of the XSLT-copy instruction
* @castedComp: computed information of the XSLT-copy instruction
*
* Execute the XSLT-copy instruction on the source node.
*/
void
xsltCopy(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst, xsltStylePreCompPtr castedComp)
{
#ifdef XSLT_REFACTORED
xsltStyleItemCopyPtr comp = (xsltStyleItemCopyPtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
xmlNodePtr copy, oldInsert;
oldInsert = ctxt->insert;
if (ctxt->insert != NULL) {
switch (node->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
/*
* This text comes from the stylesheet
* For stylesheets, the set of whitespace-preserving
* element names consists of just xsl:text.
*/
#ifdef WITH_XSLT_DEBUG_PROCESS
if (node->type == XML_CDATA_SECTION_NODE) {
XSLT_TRACE(ctxt,XSLT_TRACE_COPY,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopy: CDATA text %s\n", node->content));
} else {
XSLT_TRACE(ctxt,XSLT_TRACE_COPY,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopy: text %s\n", node->content));
}
#endif
xsltCopyText(ctxt, ctxt->insert, node, 0);
break;
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
break;
case XML_ELEMENT_NODE:
/*
* REVISIT NOTE: The "fake" is a doc-node, not an element node.
* REMOVED:
* if (xmlStrEqual(node->name, BAD_CAST " fake node libxslt"))
* return;
*/
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_COPY,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopy: node %s\n", node->name));
#endif
copy = xsltShallowCopyElem(ctxt, node, ctxt->insert, 0);
ctxt->insert = copy;
if (comp->use != NULL) {
xsltApplyAttributeSet(ctxt, node, inst, comp->use);
}
break;
case XML_ATTRIBUTE_NODE: {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_COPY,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopy: attribute %s\n", node->name));
#endif
/*
* REVISIT: We could also raise an error if the parent is not
* an element node.
* OPTIMIZE TODO: Can we set the value/children of the
* attribute without an intermediate copy of the string value?
*/
xsltShallowCopyAttr(ctxt, inst, ctxt->insert, (xmlAttrPtr) node);
break;
}
case XML_PI_NODE:
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_COPY,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopy: PI %s\n", node->name));
#endif
copy = xmlNewDocPI(ctxt->insert->doc, node->name,
node->content);
copy = xsltAddChild(ctxt->insert, copy);
break;
case XML_COMMENT_NODE:
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_COPY,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopy: comment\n"));
#endif
copy = xmlNewComment(node->content);
copy = xsltAddChild(ctxt->insert, copy);
break;
case XML_NAMESPACE_DECL:
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_COPY,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopy: namespace declaration\n"));
#endif
xsltShallowCopyNsNode(ctxt, inst, ctxt->insert, (xmlNsPtr)node);
break;
default:
break;
}
}
switch (node->type) {
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_ELEMENT_NODE:
xsltApplySequenceConstructor(ctxt, ctxt->node, inst->children,
NULL);
break;
default:
break;
}
ctxt->insert = oldInsert;
}
/**
* xsltText:
* @ctxt: a XSLT process context
* @node: the node in the source tree.
* @inst: the xslt text node
* @comp: precomputed information
*
* Process the xslt text node on the source node
*/
void
xsltText(xsltTransformContextPtr ctxt, xmlNodePtr node ATTRIBUTE_UNUSED,
xmlNodePtr inst, xsltStylePreCompPtr comp ATTRIBUTE_UNUSED) {
if ((inst->children != NULL) && (comp != NULL)) {
xmlNodePtr text = inst->children;
xmlNodePtr copy;
while (text != NULL) {
if ((text->type != XML_TEXT_NODE) &&
(text->type != XML_CDATA_SECTION_NODE)) {
xsltTransformError(ctxt, NULL, inst,
"xsl:text content problem\n");
break;
}
copy = xmlNewDocText(ctxt->output, text->content);
if (text->type != XML_CDATA_SECTION_NODE) {
#ifdef WITH_XSLT_DEBUG_PARSING
xsltGenericDebug(xsltGenericDebugContext,
"Disable escaping: %s\n", text->content);
#endif
copy->name = xmlStringTextNoenc;
}
copy = xsltAddChild(ctxt->insert, copy);
text = text->next;
}
}
}
/**
* xsltElement:
* @ctxt: a XSLT process context
* @node: the node in the source tree.
* @inst: the xslt element node
* @castedComp: precomputed information
*
* Process the xslt element node on the source node
*/
void
xsltElement(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst, xsltStylePreCompPtr castedComp) {
#ifdef XSLT_REFACTORED
xsltStyleItemElementPtr comp = (xsltStyleItemElementPtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
xmlChar *prop = NULL;
const xmlChar *name, *prefix = NULL, *nsName = NULL;
xmlNodePtr copy;
xmlNodePtr oldInsert;
if (ctxt->insert == NULL)
return;
/*
* A comp->has_name == 0 indicates that we need to skip this instruction,
* since it was evaluated to be invalid already during compilation.
*/
if (!comp->has_name)
return;
/*
* stack and saves
*/
oldInsert = ctxt->insert;
if (comp->name == NULL) {
/* TODO: fix attr acquisition wrt to the XSLT namespace */
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "name", XSLT_NAMESPACE);
if (prop == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:element: The attribute 'name' is missing.\n");
goto error;
}
if (xmlValidateQName(prop, 0)) {
xsltTransformError(ctxt, NULL, inst,
"xsl:element: The effective name '%s' is not a "
"valid QName.\n", prop);
/* we fall through to catch any further errors, if possible */
}
name = xsltSplitQName(ctxt->dict, prop, &prefix);
xmlFree(prop);
} else {
/*
* The "name" value was static.
*/
#ifdef XSLT_REFACTORED
prefix = comp->nsPrefix;
name = comp->name;
#else
name = xsltSplitQName(ctxt->dict, comp->name, &prefix);
#endif
}
/*
* Create the new element
*/
if (ctxt->output->dict == ctxt->dict) {
copy = xmlNewDocNodeEatName(ctxt->output, NULL, (xmlChar *)name, NULL);
} else {
copy = xmlNewDocNode(ctxt->output, NULL, (xmlChar *)name, NULL);
}
if (copy == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:element : creation of %s failed\n", name);
return;
}
copy = xsltAddChild(ctxt->insert, copy);
/*
* Namespace
* ---------
*/
if (comp->has_ns) {
if (comp->ns != NULL) {
/*
* No AVT; just plain text for the namespace name.
*/
if (comp->ns[0] != 0)
nsName = comp->ns;
} else {
xmlChar *tmpNsName;
/*
* Eval the AVT.
*/
/* TODO: check attr acquisition wrt to the XSLT namespace */
tmpNsName = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "namespace", XSLT_NAMESPACE);
/*
* SPEC XSLT 1.0:
* "If the string is empty, then the expanded-name of the
* attribute has a null namespace URI."
*/
if ((tmpNsName != NULL) && (tmpNsName[0] != 0))
nsName = xmlDictLookup(ctxt->dict, BAD_CAST tmpNsName, -1);
xmlFree(tmpNsName);
}
if (xmlStrEqual(nsName, BAD_CAST "http://www.w3.org/2000/xmlns/")) {
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: Namespace http://www.w3.org/2000/xmlns/ "
"forbidden.\n");
goto error;
}
if (xmlStrEqual(nsName, XML_XML_NAMESPACE)) {
prefix = BAD_CAST "xml";
} else if (xmlStrEqual(prefix, BAD_CAST "xml")) {
prefix = NULL;
}
} else {
xmlNsPtr ns;
/*
* SPEC XSLT 1.0:
* "If the namespace attribute is not present, then the QName is
* expanded into an expanded-name using the namespace declarations
* in effect for the xsl:element element, including any default
* namespace declaration.
*/
ns = xmlSearchNs(inst->doc, inst, prefix);
if (ns == NULL) {
/*
* TODO: Check this in the compilation layer in case it's a
* static value.
*/
if (prefix != NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:element: The QName '%s:%s' has no "
"namespace binding in scope in the stylesheet; "
"this is an error, since the namespace was not "
"specified by the instruction itself.\n", prefix, name);
}
} else
nsName = ns->href;
}
/*
* Find/create a matching ns-decl in the result tree.
*/
if (nsName != NULL) {
if (xmlStrEqual(prefix, BAD_CAST "xmlns")) {
/* Don't use a prefix of "xmlns" */
xmlChar *pref = xmlStrdup(BAD_CAST "ns_1");
copy->ns = xsltGetSpecialNamespace(ctxt, inst, nsName, pref, copy);
xmlFree(pref);
} else {
copy->ns = xsltGetSpecialNamespace(ctxt, inst, nsName, prefix,
copy);
}
} else if ((copy->parent != NULL) &&
(copy->parent->type == XML_ELEMENT_NODE) &&
(copy->parent->ns != NULL))
{
/*
* "Undeclare" the default namespace.
*/
xsltGetSpecialNamespace(ctxt, inst, NULL, NULL, copy);
}
ctxt->insert = copy;
if (comp->has_use) {
if (comp->use != NULL) {
xsltApplyAttributeSet(ctxt, node, inst, comp->use);
} else {
xmlChar *attrSets = NULL;
/*
* BUG TODO: use-attribute-sets is not a value template.
* use-attribute-sets = qnames
*/
attrSets = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *)"use-attribute-sets", NULL);
if (attrSets != NULL) {
xsltApplyAttributeSet(ctxt, node, inst, attrSets);
xmlFree(attrSets);
}
}
}
/*
* Instantiate the sequence constructor.
*/
if (inst->children != NULL)
xsltApplySequenceConstructor(ctxt, ctxt->node, inst->children,
NULL);
error:
ctxt->insert = oldInsert;
return;
}
/**
* xsltComment:
* @ctxt: a XSLT process context
* @node: the node in the source tree.
* @inst: the xslt comment node
* @comp: precomputed information
*
* Process the xslt comment node on the source node
*/
void
xsltComment(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst, xsltStylePreCompPtr comp ATTRIBUTE_UNUSED) {
xmlChar *value = NULL;
xmlNodePtr commentNode;
int len;
value = xsltEvalTemplateString(ctxt, node, inst);
/* TODO: use or generate the compiled form */
len = xmlStrlen(value);
if (len > 0) {
if ((value[len-1] == '-') ||
(xmlStrstr(value, BAD_CAST "--"))) {
xsltTransformError(ctxt, NULL, inst,
"xsl:comment : '--' or ending '-' not allowed in comment\n");
/* fall through to try to catch further errors */
}
}
#ifdef WITH_XSLT_DEBUG_PROCESS
if (value == NULL) {
XSLT_TRACE(ctxt,XSLT_TRACE_COMMENT,xsltGenericDebug(xsltGenericDebugContext,
"xsltComment: empty\n"));
} else {
XSLT_TRACE(ctxt,XSLT_TRACE_COMMENT,xsltGenericDebug(xsltGenericDebugContext,
"xsltComment: content %s\n", value));
}
#endif
commentNode = xmlNewComment(value);
commentNode = xsltAddChild(ctxt->insert, commentNode);
if (value != NULL)
xmlFree(value);
}
/**
* xsltProcessingInstruction:
* @ctxt: a XSLT process context
* @node: the node in the source tree.
* @inst: the xslt processing-instruction node
* @castedComp: precomputed information
*
* Process the xslt processing-instruction node on the source node
*/
void
xsltProcessingInstruction(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst, xsltStylePreCompPtr castedComp) {
#ifdef XSLT_REFACTORED
xsltStyleItemPIPtr comp = (xsltStyleItemPIPtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
const xmlChar *name;
xmlChar *value = NULL;
xmlNodePtr pi;
if (ctxt->insert == NULL)
return;
if (comp->has_name == 0)
return;
if (comp->name == NULL) {
name = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *)"name", NULL);
if (name == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:processing-instruction : name is missing\n");
goto error;
}
} else {
name = comp->name;
}
/* TODO: check that it's both an an NCName and a PITarget. */
value = xsltEvalTemplateString(ctxt, node, inst);
if (xmlStrstr(value, BAD_CAST "?>") != NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:processing-instruction: '?>' not allowed within PI content\n");
goto error;
}
#ifdef WITH_XSLT_DEBUG_PROCESS
if (value == NULL) {
XSLT_TRACE(ctxt,XSLT_TRACE_PI,xsltGenericDebug(xsltGenericDebugContext,
"xsltProcessingInstruction: %s empty\n", name));
} else {
XSLT_TRACE(ctxt,XSLT_TRACE_PI,xsltGenericDebug(xsltGenericDebugContext,
"xsltProcessingInstruction: %s content %s\n", name, value));
}
#endif
pi = xmlNewDocPI(ctxt->insert->doc, name, value);
pi = xsltAddChild(ctxt->insert, pi);
error:
if ((name != NULL) && (name != comp->name))
xmlFree((xmlChar *) name);
if (value != NULL)
xmlFree(value);
}
/**
* xsltCopyOf:
* @ctxt: an XSLT transformation context
* @node: the current node in the source tree
* @inst: the element node of the XSLT copy-of instruction
* @castedComp: precomputed information of the XSLT copy-of instruction
*
* Process the XSLT copy-of instruction.
*/
void
xsltCopyOf(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst, xsltStylePreCompPtr castedComp) {
#ifdef XSLT_REFACTORED
xsltStyleItemCopyOfPtr comp = (xsltStyleItemCopyOfPtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
xmlXPathObjectPtr res = NULL;
xmlNodeSetPtr list = NULL;
int i;
xmlDocPtr oldXPContextDoc;
xmlNsPtr *oldXPNamespaces;
xmlNodePtr oldXPContextNode;
int oldXPProximityPosition, oldXPContextSize, oldXPNsNr;
xmlXPathContextPtr xpctxt;
if ((ctxt == NULL) || (node == NULL) || (inst == NULL))
return;
if ((comp == NULL) || (comp->select == NULL) || (comp->comp == NULL)) {
xsltTransformError(ctxt, NULL, inst,
"xsl:copy-of : compilation failed\n");
return;
}
/*
* SPEC XSLT 1.0:
* "The xsl:copy-of element can be used to insert a result tree
* fragment into the result tree, without first converting it to
* a string as xsl:value-of does (see [7.6.1 Generating Text with
* xsl:value-of]). The required select attribute contains an
* expression. When the result of evaluating the expression is a
* result tree fragment, the complete fragment is copied into the
* result tree. When the result is a node-set, all the nodes in the
* set are copied in document order into the result tree; copying
* an element node copies the attribute nodes, namespace nodes and
* children of the element node as well as the element node itself;
* a root node is copied by copying its children. When the result
* is neither a node-set nor a result tree fragment, the result is
* converted to a string and then inserted into the result tree,
* as with xsl:value-of.
*/
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_COPY_OF,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopyOf: select %s\n", comp->select));
#endif
/*
* Evaluate the "select" expression.
*/
xpctxt = ctxt->xpathCtxt;
oldXPContextDoc = xpctxt->doc;
oldXPContextNode = xpctxt->node;
oldXPProximityPosition = xpctxt->proximityPosition;
oldXPContextSize = xpctxt->contextSize;
oldXPNsNr = xpctxt->nsNr;
oldXPNamespaces = xpctxt->namespaces;
xpctxt->node = node;
if (comp != NULL) {
#ifdef XSLT_REFACTORED
if (comp->inScopeNs != NULL) {
xpctxt->namespaces = comp->inScopeNs->list;
xpctxt->nsNr = comp->inScopeNs->xpathNumber;
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
#else
xpctxt->namespaces = comp->nsList;
xpctxt->nsNr = comp->nsNr;
#endif
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
res = xmlXPathCompiledEval(comp->comp, xpctxt);
xpctxt->doc = oldXPContextDoc;
xpctxt->node = oldXPContextNode;
xpctxt->contextSize = oldXPContextSize;
xpctxt->proximityPosition = oldXPProximityPosition;
xpctxt->nsNr = oldXPNsNr;
xpctxt->namespaces = oldXPNamespaces;
if (res != NULL) {
if (res->type == XPATH_NODESET) {
/*
* Node-set
* --------
*/
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_COPY_OF,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopyOf: result is a node set\n"));
#endif
list = res->nodesetval;
if (list != NULL) {
xmlNodePtr cur;
/*
* The list is already sorted in document order by XPath.
* Append everything in this order under ctxt->insert.
*/
for (i = 0;i < list->nodeNr;i++) {
cur = list->nodeTab[i];
if (cur == NULL)
continue;
if ((cur->type == XML_DOCUMENT_NODE) ||
(cur->type == XML_HTML_DOCUMENT_NODE))
{
xsltCopyTreeList(ctxt, inst,
cur->children, ctxt->insert, 0, 0);
} else if (cur->type == XML_ATTRIBUTE_NODE) {
xsltShallowCopyAttr(ctxt, inst,
ctxt->insert, (xmlAttrPtr) cur);
} else {
xsltCopyTreeInternal(ctxt, inst,
cur, ctxt->insert, 0, 0);
}
}
}
} else if (res->type == XPATH_XSLT_TREE) {
/*
* Result tree fragment
* --------------------
* E.g. via <xsl:variable ...><foo/></xsl:variable>
* Note that the root node of such trees is an xmlDocPtr in Libxslt.
*/
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_COPY_OF,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopyOf: result is a result tree fragment\n"));
#endif
list = res->nodesetval;
if ((list != NULL) && (list->nodeTab != NULL) &&
(list->nodeTab[0] != NULL) &&
(IS_XSLT_REAL_NODE(list->nodeTab[0])))
{
xsltCopyTreeList(ctxt, inst,
list->nodeTab[0]->children, ctxt->insert, 0, 0);
}
} else {
xmlChar *value = NULL;
/*
* Convert to a string.
*/
value = xmlXPathCastToString(res);
if (value == NULL) {
xsltTransformError(ctxt, NULL, inst,
"Internal error in xsltCopyOf(): "
"failed to cast an XPath object to string.\n");
ctxt->state = XSLT_STATE_STOPPED;
} else {
if (value[0] != 0) {
/*
* Append content as text node.
*/
xsltCopyTextString(ctxt, ctxt->insert, value, 0);
}
xmlFree(value);
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_COPY_OF,xsltGenericDebug(xsltGenericDebugContext,
"xsltCopyOf: result %s\n", res->stringval));
#endif
}
}
} else {
ctxt->state = XSLT_STATE_STOPPED;
}
if (res != NULL)
xmlXPathFreeObject(res);
}
/**
* xsltValueOf:
* @ctxt: a XSLT process context
* @node: the node in the source tree.
* @inst: the xslt value-of node
* @castedComp: precomputed information
*
* Process the xslt value-of node on the source node
*/
void
xsltValueOf(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst, xsltStylePreCompPtr castedComp)
{
#ifdef XSLT_REFACTORED
xsltStyleItemValueOfPtr comp = (xsltStyleItemValueOfPtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
xmlXPathObjectPtr res = NULL;
xmlChar *value = NULL;
xmlDocPtr oldXPContextDoc;
xmlNsPtr *oldXPNamespaces;
xmlNodePtr oldXPContextNode;
int oldXPProximityPosition, oldXPContextSize, oldXPNsNr;
xmlXPathContextPtr xpctxt;
if ((ctxt == NULL) || (node == NULL) || (inst == NULL))
return;
if ((comp == NULL) || (comp->select == NULL) || (comp->comp == NULL)) {
xsltTransformError(ctxt, NULL, inst,
"Internal error in xsltValueOf(): "
"The XSLT 'value-of' instruction was not compiled.\n");
return;
}
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_VALUE_OF,xsltGenericDebug(xsltGenericDebugContext,
"xsltValueOf: select %s\n", comp->select));
#endif
xpctxt = ctxt->xpathCtxt;
oldXPContextDoc = xpctxt->doc;
oldXPContextNode = xpctxt->node;
oldXPProximityPosition = xpctxt->proximityPosition;
oldXPContextSize = xpctxt->contextSize;
oldXPNsNr = xpctxt->nsNr;
oldXPNamespaces = xpctxt->namespaces;
xpctxt->node = node;
if (comp != NULL) {
#ifdef XSLT_REFACTORED
if (comp->inScopeNs != NULL) {
xpctxt->namespaces = comp->inScopeNs->list;
xpctxt->nsNr = comp->inScopeNs->xpathNumber;
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
#else
xpctxt->namespaces = comp->nsList;
xpctxt->nsNr = comp->nsNr;
#endif
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
res = xmlXPathCompiledEval(comp->comp, xpctxt);
xpctxt->doc = oldXPContextDoc;
xpctxt->node = oldXPContextNode;
xpctxt->contextSize = oldXPContextSize;
xpctxt->proximityPosition = oldXPProximityPosition;
xpctxt->nsNr = oldXPNsNr;
xpctxt->namespaces = oldXPNamespaces;
/*
* Cast the XPath object to string.
*/
if (res != NULL) {
value = xmlXPathCastToString(res);
if (value == NULL) {
xsltTransformError(ctxt, NULL, inst,
"Internal error in xsltValueOf(): "
"failed to cast an XPath object to string.\n");
ctxt->state = XSLT_STATE_STOPPED;
goto error;
}
if (value[0] != 0) {
xsltCopyTextString(ctxt, ctxt->insert, value, comp->noescape);
}
} else {
xsltTransformError(ctxt, NULL, inst,
"XPath evaluation returned no result.\n");
ctxt->state = XSLT_STATE_STOPPED;
goto error;
}
#ifdef WITH_XSLT_DEBUG_PROCESS
if (value) {
XSLT_TRACE(ctxt,XSLT_TRACE_VALUE_OF,xsltGenericDebug(xsltGenericDebugContext,
"xsltValueOf: result '%s'\n", value));
}
#endif
error:
if (value != NULL)
xmlFree(value);
if (res != NULL)
xmlXPathFreeObject(res);
}
/**
* xsltNumber:
* @ctxt: a XSLT process context
* @node: the node in the source tree.
* @inst: the xslt number node
* @castedComp: precomputed information
*
* Process the xslt number node on the source node
*/
void
xsltNumber(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst, xsltStylePreCompPtr castedComp)
{
#ifdef XSLT_REFACTORED
xsltStyleItemNumberPtr comp = (xsltStyleItemNumberPtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
if (comp == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:number : compilation failed\n");
return;
}
if ((ctxt == NULL) || (node == NULL) || (inst == NULL) || (comp == NULL))
return;
comp->numdata.doc = inst->doc;
comp->numdata.node = inst;
xsltNumberFormat(ctxt, &comp->numdata, node);
}
/**
* xsltApplyImports:
* @ctxt: an XSLT transformation context
* @contextNode: the current node in the source tree.
* @inst: the element node of the XSLT 'apply-imports' instruction
* @comp: the compiled instruction
*
* Process the XSLT apply-imports element.
*/
void
xsltApplyImports(xsltTransformContextPtr ctxt, xmlNodePtr contextNode,
xmlNodePtr inst,
xsltStylePreCompPtr comp ATTRIBUTE_UNUSED)
{
xsltTemplatePtr templ;
if ((ctxt == NULL) || (inst == NULL))
return;
if (comp == NULL) {
xsltTransformError(ctxt, NULL, inst,
"Internal error in xsltApplyImports(): "
"The XSLT 'apply-imports' instruction was not compiled.\n");
return;
}
/*
* NOTE that ctxt->currentTemplateRule and ctxt->templ is not the
* same; the former is the "Current Template Rule" as defined by the
* XSLT spec, the latter is simply the template struct being
* currently processed.
*/
if (ctxt->currentTemplateRule == NULL) {
/*
* SPEC XSLT 2.0:
* "[ERR XTDE0560] It is a non-recoverable dynamic error if
* xsl:apply-imports or xsl:next-match is evaluated when the
* current template rule is null."
*/
xsltTransformError(ctxt, NULL, inst,
"It is an error to call 'apply-imports' "
"when there's no current template rule.\n");
return;
}
/*
* TODO: Check if this is correct.
*/
templ = xsltGetTemplate(ctxt, contextNode,
ctxt->currentTemplateRule->style);
if (templ != NULL) {
xsltTemplatePtr oldCurTemplRule = ctxt->currentTemplateRule;
/*
* Set the current template rule.
*/
ctxt->currentTemplateRule = templ;
/*
* URGENT TODO: Need xsl:with-param be handled somehow here?
*/
xsltApplyXSLTTemplate(ctxt, contextNode, templ->content,
templ, NULL);
ctxt->currentTemplateRule = oldCurTemplRule;
}
}
/**
* xsltCallTemplate:
* @ctxt: a XSLT transformation context
* @node: the "current node" in the source tree
* @inst: the XSLT 'call-template' instruction
* @castedComp: the compiled information of the instruction
*
* Processes the XSLT call-template instruction on the source node.
*/
void
xsltCallTemplate(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst, xsltStylePreCompPtr castedComp)
{
#ifdef XSLT_REFACTORED
xsltStyleItemCallTemplatePtr comp =
(xsltStyleItemCallTemplatePtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
xsltStackElemPtr withParams = NULL;
if (ctxt->insert == NULL)
return;
if (comp == NULL) {
xsltTransformError(ctxt, NULL, inst,
"The XSLT 'call-template' instruction was not compiled.\n");
return;
}
/*
* The template must have been precomputed
*/
if (comp->templ == NULL) {
comp->templ = xsltFindTemplate(ctxt, comp->name, comp->ns);
if (comp->templ == NULL) {
if (comp->ns != NULL) {
xsltTransformError(ctxt, NULL, inst,
"The called template '{%s}%s' was not found.\n",
comp->ns, comp->name);
} else {
xsltTransformError(ctxt, NULL, inst,
"The called template '%s' was not found.\n",
comp->name);
}
return;
}
}
#ifdef WITH_XSLT_DEBUG_PROCESS
if ((comp != NULL) && (comp->name != NULL))
XSLT_TRACE(ctxt,XSLT_TRACE_CALL_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"call-template: name %s\n", comp->name));
#endif
if (inst->children) {
xmlNodePtr cur;
xsltStackElemPtr param;
cur = inst->children;
while (cur != NULL) {
#ifdef WITH_DEBUGGER
if (ctxt->debugStatus != XSLT_DEBUG_NONE)
xslHandleDebugger(cur, node, comp->templ, ctxt);
#endif
if (ctxt->state == XSLT_STATE_STOPPED) break;
/*
* TODO: The "with-param"s could be part of the "call-template"
* structure. Avoid to "search" for params dynamically
* in the XML tree every time.
*/
if (IS_XSLT_ELEM(cur)) {
if (IS_XSLT_NAME(cur, "with-param")) {
param = xsltParseStylesheetCallerParam(ctxt, cur);
if (param != NULL) {
param->next = withParams;
withParams = param;
}
} else {
xsltGenericError(xsltGenericErrorContext,
"xsl:call-template: misplaced xsl:%s\n", cur->name);
}
} else {
xsltGenericError(xsltGenericErrorContext,
"xsl:call-template: misplaced %s element\n", cur->name);
}
cur = cur->next;
}
}
/*
* Create a new frame using the params first
*/
xsltApplyXSLTTemplate(ctxt, node, comp->templ->content, comp->templ,
withParams);
if (withParams != NULL)
xsltFreeStackElemList(withParams);
#ifdef WITH_XSLT_DEBUG_PROCESS
if ((comp != NULL) && (comp->name != NULL))
XSLT_TRACE(ctxt,XSLT_TRACE_CALL_TEMPLATE,xsltGenericDebug(xsltGenericDebugContext,
"call-template returned: name %s\n", comp->name));
#endif
}
/**
* xsltApplyTemplates:
* @ctxt: a XSLT transformation context
* @node: the 'current node' in the source tree
* @inst: the element node of an XSLT 'apply-templates' instruction
* @castedComp: the compiled instruction
*
* Processes the XSLT 'apply-templates' instruction on the current node.
*/
void
xsltApplyTemplates(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst, xsltStylePreCompPtr castedComp)
{
#ifdef XSLT_REFACTORED
xsltStyleItemApplyTemplatesPtr comp =
(xsltStyleItemApplyTemplatesPtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
int i;
xmlNodePtr cur, delNode = NULL, oldContextNode;
xmlNodeSetPtr list = NULL, oldList;
xsltStackElemPtr withParams = NULL;
int oldXPProximityPosition, oldXPContextSize, oldXPNsNr;
const xmlChar *oldMode, *oldModeURI;
xmlDocPtr oldXPDoc;
xsltDocumentPtr oldDocInfo;
xmlXPathContextPtr xpctxt;
xmlNsPtr *oldXPNamespaces;
if (comp == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:apply-templates : compilation failed\n");
return;
}
if ((ctxt == NULL) || (node == NULL) || (inst == NULL) || (comp == NULL))
return;
#ifdef WITH_XSLT_DEBUG_PROCESS
if ((node != NULL) && (node->name != NULL))
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATES,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplyTemplates: node: '%s'\n", node->name));
#endif
xpctxt = ctxt->xpathCtxt;
/*
* Save context states.
*/
oldContextNode = ctxt->node;
oldMode = ctxt->mode;
oldModeURI = ctxt->modeURI;
oldDocInfo = ctxt->document;
oldList = ctxt->nodeList;
/*
* The xpath context size and proximity position, as
* well as the xpath and context documents, may be changed
* so we save their initial state and will restore on exit
*/
oldXPContextSize = xpctxt->contextSize;
oldXPProximityPosition = xpctxt->proximityPosition;
oldXPDoc = xpctxt->doc;
oldXPNsNr = xpctxt->nsNr;
oldXPNamespaces = xpctxt->namespaces;
/*
* Set up contexts.
*/
ctxt->mode = comp->mode;
ctxt->modeURI = comp->modeURI;
if (comp->select != NULL) {
xmlXPathObjectPtr res = NULL;
if (comp->comp == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:apply-templates : compilation failed\n");
goto error;
}
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATES,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplyTemplates: select %s\n", comp->select));
#endif
/*
* Set up XPath.
*/
xpctxt->node = node; /* Set the "context node" */
#ifdef XSLT_REFACTORED
if (comp->inScopeNs != NULL) {
xpctxt->namespaces = comp->inScopeNs->list;
xpctxt->nsNr = comp->inScopeNs->xpathNumber;
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
#else
xpctxt->namespaces = comp->nsList;
xpctxt->nsNr = comp->nsNr;
#endif
res = xmlXPathCompiledEval(comp->comp, xpctxt);
xpctxt->contextSize = oldXPContextSize;
xpctxt->proximityPosition = oldXPProximityPosition;
if (res != NULL) {
if (res->type == XPATH_NODESET) {
list = res->nodesetval; /* consume the node set */
res->nodesetval = NULL;
} else {
xsltTransformError(ctxt, NULL, inst,
"The 'select' expression did not evaluate to a "
"node set.\n");
ctxt->state = XSLT_STATE_STOPPED;
xmlXPathFreeObject(res);
goto error;
}
xmlXPathFreeObject(res);
/*
* Note: An xsl:apply-templates with a 'select' attribute,
* can change the current source doc.
*/
} else {
xsltTransformError(ctxt, NULL, inst,
"Failed to evaluate the 'select' expression.\n");
ctxt->state = XSLT_STATE_STOPPED;
goto error;
}
if (list == NULL) {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATES,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplyTemplates: select didn't evaluate to a node list\n"));
#endif
goto exit;
}
/*
*
* NOTE: Previously a document info (xsltDocument) was
* created and attached to the Result Tree Fragment.
* But such a document info is created on demand in
* xsltKeyFunction() (functions.c), so we need to create
* it here beforehand.
* In order to take care of potential keys we need to
* do some extra work for the case when a Result Tree Fragment
* is converted into a nodeset (e.g. exslt:node-set()) :
* We attach a "pseudo-doc" (xsltDocument) to _private.
* This xsltDocument, together with the keyset, will be freed
* when the Result Tree Fragment is freed.
*
*/
#if 0
if ((ctxt->nbKeys > 0) &&
(list->nodeNr != 0) &&
(list->nodeTab[0]->doc != NULL) &&
XSLT_IS_RES_TREE_FRAG(list->nodeTab[0]->doc))
{
/*
* NOTE that it's also OK if @effectiveDocInfo will be
* set to NULL.
*/
isRTF = 1;
effectiveDocInfo = list->nodeTab[0]->doc->_private;
}
#endif
} else {
/*
* Build an XPath node set with the children
*/
list = xmlXPathNodeSetCreate(NULL);
if (list == NULL)
goto error;
if (node->type != XML_NAMESPACE_DECL)
cur = node->children;
else
cur = NULL;
while (cur != NULL) {
switch (cur->type) {
case XML_TEXT_NODE:
if ((IS_BLANK_NODE(cur)) &&
(cur->parent != NULL) &&
(cur->parent->type == XML_ELEMENT_NODE) &&
(ctxt->style->stripSpaces != NULL)) {
const xmlChar *val;
if (cur->parent->ns != NULL) {
val = (const xmlChar *)
xmlHashLookup2(ctxt->style->stripSpaces,
cur->parent->name,
cur->parent->ns->href);
if (val == NULL) {
val = (const xmlChar *)
xmlHashLookup2(ctxt->style->stripSpaces,
BAD_CAST "*",
cur->parent->ns->href);
}
} else {
val = (const xmlChar *)
xmlHashLookup2(ctxt->style->stripSpaces,
cur->parent->name, NULL);
}
if ((val != NULL) &&
(xmlStrEqual(val, (xmlChar *) "strip"))) {
delNode = cur;
break;
}
}
/* no break on purpose */
case XML_ELEMENT_NODE:
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_PI_NODE:
case XML_COMMENT_NODE:
xmlXPathNodeSetAddUnique(list, cur);
break;
case XML_DTD_NODE:
/* Unlink the DTD, it's still reachable
* using doc->intSubset */
if (cur->next != NULL)
cur->next->prev = cur->prev;
if (cur->prev != NULL)
cur->prev->next = cur->next;
break;
case XML_NAMESPACE_DECL:
break;
default:
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATES,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplyTemplates: skipping cur type %d\n",
cur->type));
#endif
delNode = cur;
}
cur = cur->next;
if (delNode != NULL) {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATES,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplyTemplates: removing ignorable blank cur\n"));
#endif
xmlUnlinkNode(delNode);
xmlFreeNode(delNode);
delNode = NULL;
}
}
}
#ifdef WITH_XSLT_DEBUG_PROCESS
if (list != NULL)
XSLT_TRACE(ctxt,XSLT_TRACE_APPLY_TEMPLATES,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplyTemplates: list of %d nodes\n", list->nodeNr));
#endif
if ((list == NULL) || (list->nodeNr == 0))
goto exit;
/*
* Set the context's node set and size; this is also needed for
* for xsltDoSortFunction().
*/
ctxt->nodeList = list;
/*
* Process xsl:with-param and xsl:sort instructions.
* (The code became so verbose just to avoid the
* xmlNodePtr sorts[XSLT_MAX_SORT] if there's no xsl:sort)
* BUG TODO: We are not using namespaced potentially defined on the
* xsl:sort or xsl:with-param elements; XPath expression might fail.
*/
if (inst->children) {
xsltStackElemPtr param;
cur = inst->children;
while (cur) {
#ifdef WITH_DEBUGGER
if (ctxt->debugStatus != XSLT_DEBUG_NONE)
xslHandleDebugger(cur, node, NULL, ctxt);
#endif
if (ctxt->state == XSLT_STATE_STOPPED)
break;
if (cur->type == XML_TEXT_NODE) {
cur = cur->next;
continue;
}
if (! IS_XSLT_ELEM(cur))
break;
if (IS_XSLT_NAME(cur, "with-param")) {
param = xsltParseStylesheetCallerParam(ctxt, cur);
if (param != NULL) {
param->next = withParams;
withParams = param;
}
}
if (IS_XSLT_NAME(cur, "sort")) {
xsltTemplatePtr oldCurTempRule =
ctxt->currentTemplateRule;
int nbsorts = 0;
xmlNodePtr sorts[XSLT_MAX_SORT];
sorts[nbsorts++] = cur;
while (cur) {
#ifdef WITH_DEBUGGER
if (ctxt->debugStatus != XSLT_DEBUG_NONE)
xslHandleDebugger(cur, node, NULL, ctxt);
#endif
if (ctxt->state == XSLT_STATE_STOPPED)
break;
if (cur->type == XML_TEXT_NODE) {
cur = cur->next;
continue;
}
if (! IS_XSLT_ELEM(cur))
break;
if (IS_XSLT_NAME(cur, "with-param")) {
param = xsltParseStylesheetCallerParam(ctxt, cur);
if (param != NULL) {
param->next = withParams;
withParams = param;
}
}
if (IS_XSLT_NAME(cur, "sort")) {
if (nbsorts >= XSLT_MAX_SORT) {
xsltTransformError(ctxt, NULL, cur,
"The number (%d) of xsl:sort instructions exceeds the "
"maximum allowed by this processor's settings.\n",
nbsorts);
ctxt->state = XSLT_STATE_STOPPED;
break;
} else {
sorts[nbsorts++] = cur;
}
}
cur = cur->next;
}
/*
* The "current template rule" is cleared for xsl:sort.
*/
ctxt->currentTemplateRule = NULL;
/*
* Sort.
*/
xsltDoSortFunction(ctxt, sorts, nbsorts);
ctxt->currentTemplateRule = oldCurTempRule;
break;
}
cur = cur->next;
}
}
xpctxt->contextSize = list->nodeNr;
/*
* Apply templates for all selected source nodes.
*/
for (i = 0; i < list->nodeNr; i++) {
cur = list->nodeTab[i];
/*
* The node becomes the "current node".
*/
ctxt->node = cur;
/*
* An xsl:apply-templates can change the current context doc.
* OPTIMIZE TODO: Get rid of the need to set the context doc.
*/
if ((cur->type != XML_NAMESPACE_DECL) && (cur->doc != NULL))
xpctxt->doc = cur->doc;
xpctxt->proximityPosition = i + 1;
/*
* Find and apply a template for this node.
*/
xsltProcessOneNode(ctxt, cur, withParams);
}
exit:
error:
/*
* Free the parameter list.
*/
if (withParams != NULL)
xsltFreeStackElemList(withParams);
if (list != NULL)
xmlXPathFreeNodeSet(list);
/*
* Restore context states.
*/
xpctxt->nsNr = oldXPNsNr;
xpctxt->namespaces = oldXPNamespaces;
xpctxt->doc = oldXPDoc;
xpctxt->contextSize = oldXPContextSize;
xpctxt->proximityPosition = oldXPProximityPosition;
ctxt->document = oldDocInfo;
ctxt->nodeList = oldList;
ctxt->node = oldContextNode;
ctxt->mode = oldMode;
ctxt->modeURI = oldModeURI;
}
/**
* xsltChoose:
* @ctxt: a XSLT process context
* @contextNode: the current node in the source tree
* @inst: the xsl:choose instruction
* @comp: compiled information of the instruction
*
* Processes the xsl:choose instruction on the source node.
*/
void
xsltChoose(xsltTransformContextPtr ctxt, xmlNodePtr contextNode,
xmlNodePtr inst, xsltStylePreCompPtr comp ATTRIBUTE_UNUSED)
{
xmlNodePtr cur;
if ((ctxt == NULL) || (contextNode == NULL) || (inst == NULL))
return;
/*
* TODO: Content model checks should be done only at compilation
* time.
*/
cur = inst->children;
if (cur == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:choose: The instruction has no content.\n");
return;
}
#ifdef XSLT_REFACTORED
/*
* We don't check the content model during transformation.
*/
#else
if ((! IS_XSLT_ELEM(cur)) || (! IS_XSLT_NAME(cur, "when"))) {
xsltTransformError(ctxt, NULL, inst,
"xsl:choose: xsl:when expected first\n");
return;
}
#endif
{
int testRes = 0, res = 0;
xmlXPathContextPtr xpctxt = ctxt->xpathCtxt;
xmlDocPtr oldXPContextDoc = xpctxt->doc;
int oldXPProximityPosition = xpctxt->proximityPosition;
int oldXPContextSize = xpctxt->contextSize;
xmlNsPtr *oldXPNamespaces = xpctxt->namespaces;
int oldXPNsNr = xpctxt->nsNr;
#ifdef XSLT_REFACTORED
xsltStyleItemWhenPtr wcomp = NULL;
#else
xsltStylePreCompPtr wcomp = NULL;
#endif
/*
* Process xsl:when ---------------------------------------------------
*/
while (IS_XSLT_ELEM(cur) && IS_XSLT_NAME(cur, "when")) {
wcomp = cur->psvi;
if ((wcomp == NULL) || (wcomp->test == NULL) ||
(wcomp->comp == NULL))
{
xsltTransformError(ctxt, NULL, cur,
"Internal error in xsltChoose(): "
"The XSLT 'when' instruction was not compiled.\n");
goto error;
}
#ifdef WITH_DEBUGGER
if (xslDebugStatus != XSLT_DEBUG_NONE) {
/*
* TODO: Isn't comp->templ always NULL for xsl:choose?
*/
xslHandleDebugger(cur, contextNode, NULL, ctxt);
}
#endif
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_CHOOSE,xsltGenericDebug(xsltGenericDebugContext,
"xsltChoose: test %s\n", wcomp->test));
#endif
xpctxt->node = contextNode;
xpctxt->doc = oldXPContextDoc;
xpctxt->proximityPosition = oldXPProximityPosition;
xpctxt->contextSize = oldXPContextSize;
#ifdef XSLT_REFACTORED
if (wcomp->inScopeNs != NULL) {
xpctxt->namespaces = wcomp->inScopeNs->list;
xpctxt->nsNr = wcomp->inScopeNs->xpathNumber;
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
#else
xpctxt->namespaces = wcomp->nsList;
xpctxt->nsNr = wcomp->nsNr;
#endif
#ifdef XSLT_FAST_IF
res = xmlXPathCompiledEvalToBoolean(wcomp->comp, xpctxt);
if (res == -1) {
ctxt->state = XSLT_STATE_STOPPED;
goto error;
}
testRes = (res == 1) ? 1 : 0;
#else /* XSLT_FAST_IF */
res = xmlXPathCompiledEval(wcomp->comp, xpctxt);
if (res != NULL) {
if (res->type != XPATH_BOOLEAN)
res = xmlXPathConvertBoolean(res);
if (res->type == XPATH_BOOLEAN)
testRes = res->boolval;
else {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_CHOOSE,xsltGenericDebug(xsltGenericDebugContext,
"xsltChoose: test didn't evaluate to a boolean\n"));
#endif
goto error;
}
xmlXPathFreeObject(res);
res = NULL;
} else {
ctxt->state = XSLT_STATE_STOPPED;
goto error;
}
#endif /* else of XSLT_FAST_IF */
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_CHOOSE,xsltGenericDebug(xsltGenericDebugContext,
"xsltChoose: test evaluate to %d\n", testRes));
#endif
if (testRes)
goto test_is_true;
cur = cur->next;
}
/*
* Process xsl:otherwise ----------------------------------------------
*/
if (IS_XSLT_ELEM(cur) && IS_XSLT_NAME(cur, "otherwise")) {
#ifdef WITH_DEBUGGER
if (xslDebugStatus != XSLT_DEBUG_NONE)
xslHandleDebugger(cur, contextNode, NULL, ctxt);
#endif
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_CHOOSE,xsltGenericDebug(xsltGenericDebugContext,
"evaluating xsl:otherwise\n"));
#endif
goto test_is_true;
}
xpctxt->node = contextNode;
xpctxt->doc = oldXPContextDoc;
xpctxt->proximityPosition = oldXPProximityPosition;
xpctxt->contextSize = oldXPContextSize;
xpctxt->namespaces = oldXPNamespaces;
xpctxt->nsNr = oldXPNsNr;
goto exit;
test_is_true:
xpctxt->node = contextNode;
xpctxt->doc = oldXPContextDoc;
xpctxt->proximityPosition = oldXPProximityPosition;
xpctxt->contextSize = oldXPContextSize;
xpctxt->namespaces = oldXPNamespaces;
xpctxt->nsNr = oldXPNsNr;
goto process_sequence;
}
process_sequence:
/*
* Instantiate the sequence constructor.
*/
xsltApplySequenceConstructor(ctxt, ctxt->node, cur->children,
NULL);
exit:
error:
return;
}
/**
* xsltIf:
* @ctxt: a XSLT process context
* @contextNode: the current node in the source tree
* @inst: the xsl:if instruction
* @castedComp: compiled information of the instruction
*
* Processes the xsl:if instruction on the source node.
*/
void
xsltIf(xsltTransformContextPtr ctxt, xmlNodePtr contextNode,
xmlNodePtr inst, xsltStylePreCompPtr castedComp)
{
int res = 0;
#ifdef XSLT_REFACTORED
xsltStyleItemIfPtr comp = (xsltStyleItemIfPtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
if ((ctxt == NULL) || (contextNode == NULL) || (inst == NULL))
return;
if ((comp == NULL) || (comp->test == NULL) || (comp->comp == NULL)) {
xsltTransformError(ctxt, NULL, inst,
"Internal error in xsltIf(): "
"The XSLT 'if' instruction was not compiled.\n");
return;
}
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_IF,xsltGenericDebug(xsltGenericDebugContext,
"xsltIf: test %s\n", comp->test));
#endif
#ifdef XSLT_FAST_IF
{
xmlXPathContextPtr xpctxt = ctxt->xpathCtxt;
xmlDocPtr oldXPContextDoc = xpctxt->doc;
xmlNsPtr *oldXPNamespaces = xpctxt->namespaces;
xmlNodePtr oldXPContextNode = xpctxt->node;
int oldXPProximityPosition = xpctxt->proximityPosition;
int oldXPContextSize = xpctxt->contextSize;
int oldXPNsNr = xpctxt->nsNr;
xmlDocPtr oldLocalFragmentTop = ctxt->localRVT;
xpctxt->node = contextNode;
if (comp != NULL) {
#ifdef XSLT_REFACTORED
if (comp->inScopeNs != NULL) {
xpctxt->namespaces = comp->inScopeNs->list;
xpctxt->nsNr = comp->inScopeNs->xpathNumber;
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
#else
xpctxt->namespaces = comp->nsList;
xpctxt->nsNr = comp->nsNr;
#endif
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
/*
* This XPath function is optimized for boolean results.
*/
res = xmlXPathCompiledEvalToBoolean(comp->comp, xpctxt);
/*
* Cleanup fragments created during evaluation of the
* "select" expression.
*/
if (oldLocalFragmentTop != ctxt->localRVT)
xsltReleaseLocalRVTs(ctxt, oldLocalFragmentTop);
xpctxt->doc = oldXPContextDoc;
xpctxt->node = oldXPContextNode;
xpctxt->contextSize = oldXPContextSize;
xpctxt->proximityPosition = oldXPProximityPosition;
xpctxt->nsNr = oldXPNsNr;
xpctxt->namespaces = oldXPNamespaces;
}
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_IF,xsltGenericDebug(xsltGenericDebugContext,
"xsltIf: test evaluate to %d\n", res));
#endif
if (res == -1) {
ctxt->state = XSLT_STATE_STOPPED;
goto error;
}
if (res == 1) {
/*
* Instantiate the sequence constructor of xsl:if.
*/
xsltApplySequenceConstructor(ctxt,
contextNode, inst->children, NULL);
}
#else /* XSLT_FAST_IF */
{
xmlXPathObjectPtr xpobj = NULL;
/*
* OLD CODE:
*/
{
xmlXPathContextPtr xpctxt = ctxt->xpathCtxt;
xmlDocPtr oldXPContextDoc = xpctxt->doc;
xmlNsPtr *oldXPNamespaces = xpctxt->namespaces;
xmlNodePtr oldXPContextNode = xpctxt->node;
int oldXPProximityPosition = xpctxt->proximityPosition;
int oldXPContextSize = xpctxt->contextSize;
int oldXPNsNr = xpctxt->nsNr;
xpctxt->node = contextNode;
if (comp != NULL) {
#ifdef XSLT_REFACTORED
if (comp->inScopeNs != NULL) {
xpctxt->namespaces = comp->inScopeNs->list;
xpctxt->nsNr = comp->inScopeNs->xpathNumber;
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
#else
xpctxt->namespaces = comp->nsList;
xpctxt->nsNr = comp->nsNr;
#endif
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
/*
* This XPath function is optimized for boolean results.
*/
xpobj = xmlXPathCompiledEval(comp->comp, xpctxt);
xpctxt->doc = oldXPContextDoc;
xpctxt->node = oldXPContextNode;
xpctxt->contextSize = oldXPContextSize;
xpctxt->proximityPosition = oldXPProximityPosition;
xpctxt->nsNr = oldXPNsNr;
xpctxt->namespaces = oldXPNamespaces;
}
if (xpobj != NULL) {
if (xpobj->type != XPATH_BOOLEAN)
xpobj = xmlXPathConvertBoolean(xpobj);
if (xpobj->type == XPATH_BOOLEAN) {
res = xpobj->boolval;
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_IF,xsltGenericDebug(xsltGenericDebugContext,
"xsltIf: test evaluate to %d\n", res));
#endif
if (res) {
xsltApplySequenceConstructor(ctxt,
contextNode, inst->children, NULL);
}
} else {
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt, XSLT_TRACE_IF,
xsltGenericDebug(xsltGenericDebugContext,
"xsltIf: test didn't evaluate to a boolean\n"));
#endif
ctxt->state = XSLT_STATE_STOPPED;
}
xmlXPathFreeObject(xpobj);
} else {
ctxt->state = XSLT_STATE_STOPPED;
}
}
#endif /* else of XSLT_FAST_IF */
error:
return;
}
/**
* xsltForEach:
* @ctxt: an XSLT transformation context
* @contextNode: the "current node" in the source tree
* @inst: the element node of the xsl:for-each instruction
* @castedComp: the compiled information of the instruction
*
* Process the xslt for-each node on the source node
*/
void
xsltForEach(xsltTransformContextPtr ctxt, xmlNodePtr contextNode,
xmlNodePtr inst, xsltStylePreCompPtr castedComp)
{
#ifdef XSLT_REFACTORED
xsltStyleItemForEachPtr comp = (xsltStyleItemForEachPtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
int i;
xmlXPathObjectPtr res = NULL;
xmlNodePtr cur, curInst;
xmlNodeSetPtr list = NULL;
xmlNodeSetPtr oldList;
int oldXPProximityPosition, oldXPContextSize;
xmlNodePtr oldContextNode;
xsltTemplatePtr oldCurTemplRule;
xmlDocPtr oldXPDoc;
xsltDocumentPtr oldDocInfo;
xmlXPathContextPtr xpctxt;
if ((ctxt == NULL) || (contextNode == NULL) || (inst == NULL)) {
xsltGenericError(xsltGenericErrorContext,
"xsltForEach(): Bad arguments.\n");
return;
}
if (comp == NULL) {
xsltTransformError(ctxt, NULL, inst,
"Internal error in xsltForEach(): "
"The XSLT 'for-each' instruction was not compiled.\n");
return;
}
if ((comp->select == NULL) || (comp->comp == NULL)) {
xsltTransformError(ctxt, NULL, inst,
"Internal error in xsltForEach(): "
"The selecting expression of the XSLT 'for-each' "
"instruction was not compiled correctly.\n");
return;
}
xpctxt = ctxt->xpathCtxt;
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_FOR_EACH,xsltGenericDebug(xsltGenericDebugContext,
"xsltForEach: select %s\n", comp->select));
#endif
/*
* Save context states.
*/
oldDocInfo = ctxt->document;
oldList = ctxt->nodeList;
oldContextNode = ctxt->node;
/*
* The "current template rule" is cleared for the instantiation of
* xsl:for-each.
*/
oldCurTemplRule = ctxt->currentTemplateRule;
ctxt->currentTemplateRule = NULL;
oldXPDoc = xpctxt->doc;
oldXPProximityPosition = xpctxt->proximityPosition;
oldXPContextSize = xpctxt->contextSize;
/*
* Set up XPath.
*/
xpctxt->node = contextNode;
#ifdef XSLT_REFACTORED
if (comp->inScopeNs != NULL) {
xpctxt->namespaces = comp->inScopeNs->list;
xpctxt->nsNr = comp->inScopeNs->xpathNumber;
} else {
xpctxt->namespaces = NULL;
xpctxt->nsNr = 0;
}
#else
xpctxt->namespaces = comp->nsList;
xpctxt->nsNr = comp->nsNr;
#endif
/*
* Evaluate the 'select' expression.
*/
res = xmlXPathCompiledEval(comp->comp, ctxt->xpathCtxt);
if (res != NULL) {
if (res->type == XPATH_NODESET)
list = res->nodesetval;
else {
xsltTransformError(ctxt, NULL, inst,
"The 'select' expression does not evaluate to a node set.\n");
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_FOR_EACH,xsltGenericDebug(xsltGenericDebugContext,
"xsltForEach: select didn't evaluate to a node list\n"));
#endif
goto error;
}
} else {
xsltTransformError(ctxt, NULL, inst,
"Failed to evaluate the 'select' expression.\n");
ctxt->state = XSLT_STATE_STOPPED;
goto error;
}
if ((list == NULL) || (list->nodeNr <= 0))
goto exit;
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_FOR_EACH,xsltGenericDebug(xsltGenericDebugContext,
"xsltForEach: select evaluates to %d nodes\n", list->nodeNr));
#endif
/*
* Restore XPath states for the "current node".
*/
xpctxt->contextSize = oldXPContextSize;
xpctxt->proximityPosition = oldXPProximityPosition;
xpctxt->node = contextNode;
/*
* Set the list; this has to be done already here for xsltDoSortFunction().
*/
ctxt->nodeList = list;
/*
* Handle xsl:sort instructions and skip them for further processing.
* BUG TODO: We are not using namespaced potentially defined on the
* xsl:sort element; XPath expression might fail.
*/
curInst = inst->children;
if (IS_XSLT_ELEM(curInst) && IS_XSLT_NAME(curInst, "sort")) {
int nbsorts = 0;
xmlNodePtr sorts[XSLT_MAX_SORT];
sorts[nbsorts++] = curInst;
#ifdef WITH_DEBUGGER
if (xslDebugStatus != XSLT_DEBUG_NONE)
xslHandleDebugger(curInst, contextNode, NULL, ctxt);
#endif
curInst = curInst->next;
while (IS_XSLT_ELEM(curInst) && IS_XSLT_NAME(curInst, "sort")) {
if (nbsorts >= XSLT_MAX_SORT) {
xsltTransformError(ctxt, NULL, curInst,
"The number of xsl:sort instructions exceeds the "
"maximum (%d) allowed by this processor.\n",
XSLT_MAX_SORT);
goto error;
} else {
sorts[nbsorts++] = curInst;
}
#ifdef WITH_DEBUGGER
if (xslDebugStatus != XSLT_DEBUG_NONE)
xslHandleDebugger(curInst, contextNode, NULL, ctxt);
#endif
curInst = curInst->next;
}
xsltDoSortFunction(ctxt, sorts, nbsorts);
}
xpctxt->contextSize = list->nodeNr;
/*
* Instantiate the sequence constructor for each selected node.
*/
for (i = 0; i < list->nodeNr; i++) {
cur = list->nodeTab[i];
/*
* The selected node becomes the "current node".
*/
ctxt->node = cur;
/*
* An xsl:for-each can change the current context doc.
* OPTIMIZE TODO: Get rid of the need to set the context doc.
*/
if ((cur->type != XML_NAMESPACE_DECL) && (cur->doc != NULL))
xpctxt->doc = cur->doc;
xpctxt->proximityPosition = i + 1;
xsltApplySequenceConstructor(ctxt, cur, curInst, NULL);
}
exit:
error:
if (res != NULL)
xmlXPathFreeObject(res);
/*
* Restore old states.
*/
ctxt->document = oldDocInfo;
ctxt->nodeList = oldList;
ctxt->node = oldContextNode;
ctxt->currentTemplateRule = oldCurTemplRule;
xpctxt->doc = oldXPDoc;
xpctxt->contextSize = oldXPContextSize;
xpctxt->proximityPosition = oldXPProximityPosition;
}
/************************************************************************
* *
* Generic interface *
* *
************************************************************************/
#ifdef XSLT_GENERATE_HTML_DOCTYPE
typedef struct xsltHTMLVersion {
const char *version;
const char *public;
const char *system;
} xsltHTMLVersion;
static xsltHTMLVersion xsltHTMLVersions[] = {
{ "4.01frame", "-//W3C//DTD HTML 4.01 Frameset//EN",
"http://www.w3.org/TR/1999/REC-html401-19991224/frameset.dtd"},
{ "4.01strict", "-//W3C//DTD HTML 4.01//EN",
"http://www.w3.org/TR/1999/REC-html401-19991224/strict.dtd"},
{ "4.01trans", "-//W3C//DTD HTML 4.01 Transitional//EN",
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd"},
{ "4.01", "-//W3C//DTD HTML 4.01 Transitional//EN",
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd"},
{ "4.0strict", "-//W3C//DTD HTML 4.01//EN",
"http://www.w3.org/TR/html4/strict.dtd"},
{ "4.0trans", "-//W3C//DTD HTML 4.01 Transitional//EN",
"http://www.w3.org/TR/html4/loose.dtd"},
{ "4.0frame", "-//W3C//DTD HTML 4.01 Frameset//EN",
"http://www.w3.org/TR/html4/frameset.dtd"},
{ "4.0", "-//W3C//DTD HTML 4.01 Transitional//EN",
"http://www.w3.org/TR/html4/loose.dtd"},
{ "3.2", "-//W3C//DTD HTML 3.2//EN", NULL }
};
/**
* xsltGetHTMLIDs:
* @version: the version string
* @publicID: used to return the public ID
* @systemID: used to return the system ID
*
* Returns -1 if not found, 0 otherwise and the system and public
* Identifier for this given verion of HTML
*/
static int
xsltGetHTMLIDs(const xmlChar *version, const xmlChar **publicID,
const xmlChar **systemID) {
unsigned int i;
if (version == NULL)
return(-1);
for (i = 0;i < (sizeof(xsltHTMLVersions)/sizeof(xsltHTMLVersions[1]));
i++) {
if (!xmlStrcasecmp(version,
(const xmlChar *) xsltHTMLVersions[i].version)) {
if (publicID != NULL)
*publicID = (const xmlChar *) xsltHTMLVersions[i].public;
if (systemID != NULL)
*systemID = (const xmlChar *) xsltHTMLVersions[i].system;
return(0);
}
}
return(-1);
}
#endif
/**
* xsltApplyStripSpaces:
* @ctxt: a XSLT process context
* @node: the root of the XML tree
*
* Strip the unwanted ignorable spaces from the input tree
*/
void
xsltApplyStripSpaces(xsltTransformContextPtr ctxt, xmlNodePtr node) {
xmlNodePtr current;
#ifdef WITH_XSLT_DEBUG_PROCESS
int nb = 0;
#endif
current = node;
while (current != NULL) {
/*
* Cleanup children empty nodes if asked for
*/
if ((IS_XSLT_REAL_NODE(current)) &&
(current->children != NULL) &&
(xsltFindElemSpaceHandling(ctxt, current))) {
xmlNodePtr delete = NULL, cur = current->children;
while (cur != NULL) {
if (IS_BLANK_NODE(cur))
delete = cur;
cur = cur->next;
if (delete != NULL) {
xmlUnlinkNode(delete);
xmlFreeNode(delete);
delete = NULL;
#ifdef WITH_XSLT_DEBUG_PROCESS
nb++;
#endif
}
}
}
/*
* Skip to next node in document order.
*/
if (node->type == XML_ENTITY_REF_NODE) {
/* process deep in entities */
xsltApplyStripSpaces(ctxt, node->children);
}
if ((current->children != NULL) &&
(current->type != XML_ENTITY_REF_NODE)) {
current = current->children;
} else if (current->next != NULL) {
current = current->next;
} else {
do {
current = current->parent;
if (current == NULL)
break;
if (current == node)
goto done;
if (current->next != NULL) {
current = current->next;
break;
}
} while (current != NULL);
}
}
done:
#ifdef WITH_XSLT_DEBUG_PROCESS
XSLT_TRACE(ctxt,XSLT_TRACE_STRIP_SPACES,xsltGenericDebug(xsltGenericDebugContext,
"xsltApplyStripSpaces: removed %d ignorable blank node\n", nb));
#endif
return;
}
static int
xsltCountKeys(xsltTransformContextPtr ctxt)
{
xsltStylesheetPtr style;
xsltKeyDefPtr keyd;
if (ctxt == NULL)
return(-1);
/*
* Do we have those nastly templates with a key() in the match pattern?
*/
ctxt->hasTemplKeyPatterns = 0;
style = ctxt->style;
while (style != NULL) {
if (style->keyMatch != NULL) {
ctxt->hasTemplKeyPatterns = 1;
break;
}
style = xsltNextImport(style);
}
/*
* Count number of key declarations.
*/
ctxt->nbKeys = 0;
style = ctxt->style;
while (style != NULL) {
keyd = style->keys;
while (keyd) {
ctxt->nbKeys++;
keyd = keyd->next;
}
style = xsltNextImport(style);
}
return(ctxt->nbKeys);
}
/**
* xsltApplyStylesheetInternal:
* @style: a parsed XSLT stylesheet
* @doc: a parsed XML document
* @params: a NULL terminated array of parameters names/values tuples
* @output: the targetted output
* @profile: profile FILE * output or NULL
* @user: user provided parameter
*
* Apply the stylesheet to the document
* NOTE: This may lead to a non-wellformed output XML wise !
*
* Returns the result document or NULL in case of error
*/
static xmlDocPtr
xsltApplyStylesheetInternal(xsltStylesheetPtr style, xmlDocPtr doc,
const char **params, const char *output,
FILE * profile, xsltTransformContextPtr userCtxt)
{
xmlDocPtr res = NULL;
xsltTransformContextPtr ctxt = NULL;
xmlNodePtr root, node;
const xmlChar *method;
const xmlChar *doctypePublic;
const xmlChar *doctypeSystem;
const xmlChar *version;
const xmlChar *encoding;
xsltStackElemPtr variables;
xsltStackElemPtr vptr;
xsltInitGlobals();
if ((style == NULL) || (doc == NULL))
return (NULL);
if (style->internalized == 0) {
#ifdef WITH_XSLT_DEBUG
xsltGenericDebug(xsltGenericDebugContext,
"Stylesheet was not fully internalized !\n");
#endif
}
if (doc->intSubset != NULL) {
/*
* Avoid hitting the DTD when scanning nodes
* but keep it linked as doc->intSubset
*/
xmlNodePtr cur = (xmlNodePtr) doc->intSubset;
if (cur->next != NULL)
cur->next->prev = cur->prev;
if (cur->prev != NULL)
cur->prev->next = cur->next;
if (doc->children == cur)
doc->children = cur->next;
if (doc->last == cur)
doc->last = cur->prev;
cur->prev = cur->next = NULL;
}
/*
* Check for XPath document order availability
*/
root = xmlDocGetRootElement(doc);
if (root != NULL) {
if (((long) root->content) >= 0 && (xslDebugStatus == XSLT_DEBUG_NONE))
xmlXPathOrderDocElems(doc);
}
if (userCtxt != NULL)
ctxt = userCtxt;
else
ctxt = xsltNewTransformContext(style, doc);
if (ctxt == NULL)
return (NULL);
ctxt->initialContextDoc = doc;
ctxt->initialContextNode = (xmlNodePtr) doc;
if (profile != NULL)
ctxt->profile = 1;
if (output != NULL)
ctxt->outputFile = output;
else
ctxt->outputFile = NULL;
/*
* internalize the modes if needed
*/
if (ctxt->dict != NULL) {
if (ctxt->mode != NULL)
ctxt->mode = xmlDictLookup(ctxt->dict, ctxt->mode, -1);
if (ctxt->modeURI != NULL)
ctxt->modeURI = xmlDictLookup(ctxt->dict, ctxt->modeURI, -1);
}
XSLT_GET_IMPORT_PTR(method, style, method)
XSLT_GET_IMPORT_PTR(doctypePublic, style, doctypePublic)
XSLT_GET_IMPORT_PTR(doctypeSystem, style, doctypeSystem)
XSLT_GET_IMPORT_PTR(version, style, version)
XSLT_GET_IMPORT_PTR(encoding, style, encoding)
if ((method != NULL) &&
(!xmlStrEqual(method, (const xmlChar *) "xml")))
{
if (xmlStrEqual(method, (const xmlChar *) "html")) {
ctxt->type = XSLT_OUTPUT_HTML;
if (((doctypePublic != NULL) || (doctypeSystem != NULL))) {
res = htmlNewDoc(doctypeSystem, doctypePublic);
} else {
if (version == NULL) {
xmlDtdPtr dtd;
res = htmlNewDoc(NULL, NULL);
/*
* Make sure no DTD node is generated in this case
*/
if (res != NULL) {
dtd = xmlGetIntSubset(res);
if (dtd != NULL) {
xmlUnlinkNode((xmlNodePtr) dtd);
xmlFreeDtd(dtd);
}
res->intSubset = NULL;
res->extSubset = NULL;
}
} else {
#ifdef XSLT_GENERATE_HTML_DOCTYPE
xsltGetHTMLIDs(version, &doctypePublic, &doctypeSystem);
#endif
res = htmlNewDoc(doctypeSystem, doctypePublic);
}
}
if (res == NULL)
goto error;
res->dict = ctxt->dict;
xmlDictReference(res->dict);
#ifdef WITH_XSLT_DEBUG
xsltGenericDebug(xsltGenericDebugContext,
"reusing transformation dict for output\n");
#endif
} else if (xmlStrEqual(method, (const xmlChar *) "xhtml")) {
xsltTransformError(ctxt, NULL, (xmlNodePtr) doc,
"xsltApplyStylesheetInternal: unsupported method xhtml, using html\n",
style->method);
ctxt->type = XSLT_OUTPUT_HTML;
res = htmlNewDoc(doctypeSystem, doctypePublic);
if (res == NULL)
goto error;
res->dict = ctxt->dict;
xmlDictReference(res->dict);
#ifdef WITH_XSLT_DEBUG
xsltGenericDebug(xsltGenericDebugContext,
"reusing transformation dict for output\n");
#endif
} else if (xmlStrEqual(method, (const xmlChar *) "text")) {
ctxt->type = XSLT_OUTPUT_TEXT;
res = xmlNewDoc(style->version);
if (res == NULL)
goto error;
res->dict = ctxt->dict;
xmlDictReference(res->dict);
#ifdef WITH_XSLT_DEBUG
xsltGenericDebug(xsltGenericDebugContext,
"reusing transformation dict for output\n");
#endif
} else {
xsltTransformError(ctxt, NULL, (xmlNodePtr) doc,
"xsltApplyStylesheetInternal: unsupported method %s\n",
style->method);
goto error;
}
} else {
ctxt->type = XSLT_OUTPUT_XML;
res = xmlNewDoc(style->version);
if (res == NULL)
goto error;
res->dict = ctxt->dict;
xmlDictReference(ctxt->dict);
#ifdef WITH_XSLT_DEBUG
xsltGenericDebug(xsltGenericDebugContext,
"reusing transformation dict for output\n");
#endif
}
res->charset = XML_CHAR_ENCODING_UTF8;
if (encoding != NULL)
res->encoding = xmlStrdup(encoding);
variables = style->variables;
/*
* Start the evaluation, evaluate the params, the stylesheets globals
* and start by processing the top node.
*/
if (xsltNeedElemSpaceHandling(ctxt))
xsltApplyStripSpaces(ctxt, xmlDocGetRootElement(doc));
/*
* Evaluate global params and user-provided params.
*/
ctxt->node = (xmlNodePtr) doc;
if (ctxt->globalVars == NULL)
ctxt->globalVars = xmlHashCreate(20);
if (params != NULL) {
xsltEvalUserParams(ctxt, params);
}
/* need to be called before evaluating global variables */
xsltCountKeys(ctxt);
xsltEvalGlobalVariables(ctxt);
ctxt->node = (xmlNodePtr) doc;
ctxt->output = res;
ctxt->insert = (xmlNodePtr) res;
ctxt->varsBase = ctxt->varsNr - 1;
ctxt->xpathCtxt->contextSize = 1;
ctxt->xpathCtxt->proximityPosition = 1;
ctxt->xpathCtxt->node = NULL; /* TODO: Set the context node here? */
/*
* Start processing the source tree -----------------------------------
*/
xsltProcessOneNode(ctxt, ctxt->node, NULL);
/*
* Remove all remaining vars from the stack.
*/
xsltLocalVariablePop(ctxt, 0, -2);
xsltShutdownCtxtExts(ctxt);
xsltCleanupTemplates(style); /* TODO: <- style should be read only */
/*
* Now cleanup our variables so stylesheet can be re-used
*
* TODO: this is not needed anymore global variables are copied
* and not evaluated directly anymore, keep this as a check
*/
if (style->variables != variables) {
vptr = style->variables;
while (vptr->next != variables)
vptr = vptr->next;
vptr->next = NULL;
xsltFreeStackElemList(style->variables);
style->variables = variables;
}
vptr = style->variables;
while (vptr != NULL) {
if (vptr->computed) {
if (vptr->value != NULL) {
xmlXPathFreeObject(vptr->value);
vptr->value = NULL;
vptr->computed = 0;
}
}
vptr = vptr->next;
}
#if 0
/*
* code disabled by wmb; awaiting kb's review
* problem is that global variable(s) may contain xpath objects
* from doc associated with RVT, so can't be freed at this point.
* xsltFreeTransformContext includes a call to xsltFreeRVTs, so
* I assume this shouldn't be required at this point.
*/
/*
* Free all remaining tree fragments.
*/
xsltFreeRVTs(ctxt);
#endif
/*
* Do some post processing work depending on the generated output
*/
root = xmlDocGetRootElement(res);
if (root != NULL) {
const xmlChar *doctype = NULL;
if ((root->ns != NULL) && (root->ns->prefix != NULL))
doctype = xmlDictQLookup(ctxt->dict, root->ns->prefix, root->name);
if (doctype == NULL)
doctype = root->name;
/*
* Apply the default selection of the method
*/
if ((method == NULL) &&
(root->ns == NULL) &&
(!xmlStrcasecmp(root->name, (const xmlChar *) "html"))) {
xmlNodePtr tmp;
tmp = res->children;
while ((tmp != NULL) && (tmp != root)) {
if (tmp->type == XML_ELEMENT_NODE)
break;
if ((tmp->type == XML_TEXT_NODE) && (!xmlIsBlankNode(tmp)))
break;
tmp = tmp->next;
}
if (tmp == root) {
ctxt->type = XSLT_OUTPUT_HTML;
/*
* REVISIT TODO: XML_HTML_DOCUMENT_NODE is set after the
* transformation on the doc, but functions like
*/
res->type = XML_HTML_DOCUMENT_NODE;
if (((doctypePublic != NULL) || (doctypeSystem != NULL))) {
res->intSubset = xmlCreateIntSubset(res, doctype,
doctypePublic,
doctypeSystem);
#ifdef XSLT_GENERATE_HTML_DOCTYPE
} else if (version != NULL) {
xsltGetHTMLIDs(version, &doctypePublic,
&doctypeSystem);
if (((doctypePublic != NULL) || (doctypeSystem != NULL)))
res->intSubset =
xmlCreateIntSubset(res, doctype,
doctypePublic,
doctypeSystem);
#endif
}
}
}
if (ctxt->type == XSLT_OUTPUT_XML) {
XSLT_GET_IMPORT_PTR(doctypePublic, style, doctypePublic)
XSLT_GET_IMPORT_PTR(doctypeSystem, style, doctypeSystem)
if (((doctypePublic != NULL) || (doctypeSystem != NULL))) {
xmlNodePtr last;
/* Need a small "hack" here to assure DTD comes before
possible comment nodes */
node = res->children;
last = res->last;
res->children = NULL;
res->last = NULL;
res->intSubset = xmlCreateIntSubset(res, doctype,
doctypePublic,
doctypeSystem);
if (res->children != NULL) {
res->children->next = node;
node->prev = res->children;
res->last = last;
} else {
res->children = node;
res->last = last;
}
}
}
}
xmlXPathFreeNodeSet(ctxt->nodeList);
if (profile != NULL) {
xsltSaveProfiling(ctxt, profile);
}
/*
* Be pedantic.
*/
if ((ctxt != NULL) && (ctxt->state == XSLT_STATE_ERROR)) {
xmlFreeDoc(res);
res = NULL;
}
if ((res != NULL) && (ctxt != NULL) && (output != NULL)) {
int ret;
ret = xsltCheckWrite(ctxt->sec, ctxt, (const xmlChar *) output);
if (ret == 0) {
xsltTransformError(ctxt, NULL, NULL,
"xsltApplyStylesheet: forbidden to save to %s\n",
output);
} else if (ret < 0) {
xsltTransformError(ctxt, NULL, NULL,
"xsltApplyStylesheet: saving to %s may not be possible\n",
output);
}
}
#ifdef XSLT_DEBUG_PROFILE_CACHE
printf("# Cache:\n");
printf("# Reused tree fragments: %d\n", ctxt->cache->dbgReusedRVTs);
printf("# Reused variables : %d\n", ctxt->cache->dbgReusedVars);
#endif
if ((ctxt != NULL) && (userCtxt == NULL))
xsltFreeTransformContext(ctxt);
return (res);
error:
if (res != NULL)
xmlFreeDoc(res);
#ifdef XSLT_DEBUG_PROFILE_CACHE
printf("# Cache:\n");
printf("# Reused tree fragments: %d\n", ctxt->cache->dbgReusedRVTs);
printf("# Reused variables : %d\n", ctxt->cache->dbgReusedVars);
#endif
if ((ctxt != NULL) && (userCtxt == NULL))
xsltFreeTransformContext(ctxt);
return (NULL);
}
/**
* xsltApplyStylesheet:
* @style: a parsed XSLT stylesheet
* @doc: a parsed XML document
* @params: a NULL terminated arry of parameters names/values tuples
*
* Apply the stylesheet to the document
* NOTE: This may lead to a non-wellformed output XML wise !
*
* Returns the result document or NULL in case of error
*/
xmlDocPtr
xsltApplyStylesheet(xsltStylesheetPtr style, xmlDocPtr doc,
const char **params)
{
return (xsltApplyStylesheetInternal(style, doc, params, NULL, NULL, NULL));
}
/**
* xsltProfileStylesheet:
* @style: a parsed XSLT stylesheet
* @doc: a parsed XML document
* @params: a NULL terminated arry of parameters names/values tuples
* @output: a FILE * for the profiling output
*
* Apply the stylesheet to the document and dump the profiling to
* the given output.
*
* Returns the result document or NULL in case of error
*/
xmlDocPtr
xsltProfileStylesheet(xsltStylesheetPtr style, xmlDocPtr doc,
const char **params, FILE * output)
{
xmlDocPtr res;
res = xsltApplyStylesheetInternal(style, doc, params, NULL, output, NULL);
return (res);
}
/**
* xsltApplyStylesheetUser:
* @style: a parsed XSLT stylesheet
* @doc: a parsed XML document
* @params: a NULL terminated array of parameters names/values tuples
* @output: the targetted output
* @profile: profile FILE * output or NULL
* @userCtxt: user provided transform context
*
* Apply the stylesheet to the document and allow the user to provide
* its own transformation context.
*
* Returns the result document or NULL in case of error
*/
xmlDocPtr
xsltApplyStylesheetUser(xsltStylesheetPtr style, xmlDocPtr doc,
const char **params, const char *output,
FILE * profile, xsltTransformContextPtr userCtxt)
{
xmlDocPtr res;
res = xsltApplyStylesheetInternal(style, doc, params, output,
profile, userCtxt);
return (res);
}
/**
* xsltRunStylesheetUser:
* @style: a parsed XSLT stylesheet
* @doc: a parsed XML document
* @params: a NULL terminated array of parameters names/values tuples
* @output: the URL/filename ot the generated resource if available
* @SAX: a SAX handler for progressive callback output (not implemented yet)
* @IObuf: an output buffer for progressive output (not implemented yet)
* @profile: profile FILE * output or NULL
* @userCtxt: user provided transform context
*
* Apply the stylesheet to the document and generate the output according
* to @output @SAX and @IObuf. It's an error to specify both @SAX and @IObuf.
*
* NOTE: This may lead to a non-wellformed output XML wise !
* NOTE: This may also result in multiple files being generated
* NOTE: using IObuf, the result encoding used will be the one used for
* creating the output buffer, use the following macro to read it
* from the stylesheet
* XSLT_GET_IMPORT_PTR(encoding, style, encoding)
* NOTE: using SAX, any encoding specified in the stylesheet will be lost
* since the interface uses only UTF8
*
* Returns the number of by written to the main resource or -1 in case of
* error.
*/
int
xsltRunStylesheetUser(xsltStylesheetPtr style, xmlDocPtr doc,
const char **params, const char *output,
xmlSAXHandlerPtr SAX, xmlOutputBufferPtr IObuf,
FILE * profile, xsltTransformContextPtr userCtxt)
{
xmlDocPtr tmp;
int ret;
if ((output == NULL) && (SAX == NULL) && (IObuf == NULL))
return (-1);
if ((SAX != NULL) && (IObuf != NULL))
return (-1);
/* unsupported yet */
if (SAX != NULL) {
XSLT_TODO /* xsltRunStylesheet xmlSAXHandlerPtr SAX */
return (-1);
}
tmp = xsltApplyStylesheetInternal(style, doc, params, output, profile,
userCtxt);
if (tmp == NULL) {
xsltTransformError(NULL, NULL, (xmlNodePtr) doc,
"xsltRunStylesheet : run failed\n");
return (-1);
}
if (IObuf != NULL) {
/* TODO: incomplete, IObuf output not progressive */
ret = xsltSaveResultTo(IObuf, tmp, style);
} else {
ret = xsltSaveResultToFilename(output, tmp, style, 0);
}
xmlFreeDoc(tmp);
return (ret);
}
/**
* xsltRunStylesheet:
* @style: a parsed XSLT stylesheet
* @doc: a parsed XML document
* @params: a NULL terminated array of parameters names/values tuples
* @output: the URL/filename ot the generated resource if available
* @SAX: a SAX handler for progressive callback output (not implemented yet)
* @IObuf: an output buffer for progressive output (not implemented yet)
*
* Apply the stylesheet to the document and generate the output according
* to @output @SAX and @IObuf. It's an error to specify both @SAX and @IObuf.
*
* NOTE: This may lead to a non-wellformed output XML wise !
* NOTE: This may also result in multiple files being generated
* NOTE: using IObuf, the result encoding used will be the one used for
* creating the output buffer, use the following macro to read it
* from the stylesheet
* XSLT_GET_IMPORT_PTR(encoding, style, encoding)
* NOTE: using SAX, any encoding specified in the stylesheet will be lost
* since the interface uses only UTF8
*
* Returns the number of bytes written to the main resource or -1 in case of
* error.
*/
int
xsltRunStylesheet(xsltStylesheetPtr style, xmlDocPtr doc,
const char **params, const char *output,
xmlSAXHandlerPtr SAX, xmlOutputBufferPtr IObuf)
{
return(xsltRunStylesheetUser(style, doc, params, output, SAX, IObuf,
NULL, NULL));
}
/**
* xsltRegisterAllElement:
* @ctxt: the XPath context
*
* Registers all default XSLT elements in this context
*/
void
xsltRegisterAllElement(xsltTransformContextPtr ctxt)
{
xsltRegisterExtElement(ctxt, (const xmlChar *) "apply-templates",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltApplyTemplates);
xsltRegisterExtElement(ctxt, (const xmlChar *) "apply-imports",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltApplyImports);
xsltRegisterExtElement(ctxt, (const xmlChar *) "call-template",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltCallTemplate);
xsltRegisterExtElement(ctxt, (const xmlChar *) "element",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltElement);
xsltRegisterExtElement(ctxt, (const xmlChar *) "attribute",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltAttribute);
xsltRegisterExtElement(ctxt, (const xmlChar *) "text",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltText);
xsltRegisterExtElement(ctxt, (const xmlChar *) "processing-instruction",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltProcessingInstruction);
xsltRegisterExtElement(ctxt, (const xmlChar *) "comment",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltComment);
xsltRegisterExtElement(ctxt, (const xmlChar *) "copy",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltCopy);
xsltRegisterExtElement(ctxt, (const xmlChar *) "value-of",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltValueOf);
xsltRegisterExtElement(ctxt, (const xmlChar *) "number",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltNumber);
xsltRegisterExtElement(ctxt, (const xmlChar *) "for-each",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltForEach);
xsltRegisterExtElement(ctxt, (const xmlChar *) "if",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltIf);
xsltRegisterExtElement(ctxt, (const xmlChar *) "choose",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltChoose);
xsltRegisterExtElement(ctxt, (const xmlChar *) "sort",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltSort);
xsltRegisterExtElement(ctxt, (const xmlChar *) "copy-of",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltCopyOf);
xsltRegisterExtElement(ctxt, (const xmlChar *) "message",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltMessage);
/*
* Those don't have callable entry points but are registered anyway
*/
xsltRegisterExtElement(ctxt, (const xmlChar *) "variable",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltDebug);
xsltRegisterExtElement(ctxt, (const xmlChar *) "param",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltDebug);
xsltRegisterExtElement(ctxt, (const xmlChar *) "with-param",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltDebug);
xsltRegisterExtElement(ctxt, (const xmlChar *) "decimal-format",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltDebug);
xsltRegisterExtElement(ctxt, (const xmlChar *) "when",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltDebug);
xsltRegisterExtElement(ctxt, (const xmlChar *) "otherwise",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltDebug);
xsltRegisterExtElement(ctxt, (const xmlChar *) "fallback",
XSLT_NAMESPACE,
(xsltTransformFunction) xsltDebug);
}
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