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added xmlXPathRegisterVariableLookup() for XSLT Daniel

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* xpath.[ch] xpathInternals.h: added xmlXPathRegisterVariableLookup() for XSLT
Daniel
This commit is contained in:
Daniel Veillard
2001-01-19 05:32:34 +00:00
parent d8aa7cbd18
commit 8f4d97579a
6 changed files with 77 additions and 0 deletions
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36
xpath.c
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@ -1011,6 +1011,23 @@ xmlXPathRegisterVariableNS(xmlXPathContextPtr ctxt, const xmlChar *name,
(xmlHashDeallocator)xmlXPathFreeObject));
}
/**
* xmlXPathRegisterVariableLookup:
* @ctxt: the XPath context
* @f: the lookup function
* @data: the lookup data
*
* register an external mechanism to do variable lookup
*/
void
xmlXPathRegisterVariableLookup(xmlXPathContextPtr ctxt,
xmlXPathVariableLookupFunc f, void *data) {
if (ctxt == NULL)
return;
ctxt->varLookupFunc = (void *) f;
ctxt->varLookupData = data;
}
/**
* xmlXPathVariableLookup:
* @ctxt: the XPath context
@ -1023,6 +1040,16 @@ xmlXPathRegisterVariableNS(xmlXPathContextPtr ctxt, const xmlChar *name,
*/
xmlXPathObjectPtr
xmlXPathVariableLookup(xmlXPathContextPtr ctxt, const xmlChar *name) {
if (ctxt == NULL)
return(NULL);
if (ctxt->varLookupFunc != NULL) {
xmlXPathObjectPtr ret;
ret = ((xmlXPathVariableLookupFunc)ctxt->varLookupFunc)
(ctxt->varLookupData, name, NULL);
if (ret != NULL) return(ret);
}
return(xmlXPathVariableLookupNS(ctxt, name, NULL));
}
@ -1042,6 +1069,15 @@ xmlXPathVariableLookupNS(xmlXPathContextPtr ctxt, const xmlChar *name,
const xmlChar *ns_uri) {
if (ctxt == NULL)
return(NULL);
if (ctxt->varLookupFunc != NULL) {
xmlXPathObjectPtr ret;
ret = ((xmlXPathVariableLookupFunc)ctxt->varLookupFunc)
(ctxt->varLookupData, name, ns_uri);
if (ret != NULL) return(ret);
}
if (ctxt->varHash == NULL)
return(NULL);
if (name == NULL)