/**
* xsltEvalAttrValueTemplate:
* @ctxt: the XSLT transformation context
* @inst: the instruction (or LRE) in the stylesheet holding the
* attribute with an AVT
* @name: the attribute QName
* @ns: the attribute namespace URI
*
* Evaluate a attribute value template, i.e. the attribute value can
* contain expressions contained in curly braces ({}) and those are
* substituted by they computed value.
*
* Returns the computed string value or NULL, must be deallocated by the
* caller.
*/
xmlChar *
xsltEvalAttrValueTemplate(xsltTransformContextPtr ctxt, xmlNodePtr inst,
const xmlChar *name, const xmlChar *ns)
{
xmlChar *ret;
xmlChar *expr;
if ((ctxt == NULL) || (inst == NULL) || (name == NULL))
return(NULL);
expr = xsltGetNsProp(inst, name, ns);
if (expr == NULL)
return(NULL);
/*
* TODO: though now {} is detected ahead, it would still be good to
* optimize both functions to keep the splitted value if the
* attribute content and the XPath precompiled expressions around
*/
ret = xsltAttrTemplateValueProcessNode(ctxt, expr, inst);
#ifdef WITH_XSLT_DEBUG_TEMPLATES
XSLT_TRACE(ctxt,XSLT_TRACE_TEMPLATES,xsltGenericDebug(xsltGenericDebugContext,
"xsltEvalAttrValueTemplate: %s returns %s\n", expr, ret));
#endif
if (expr != NULL)
xmlFree(expr);
return(ret);
}
xmlChar *
xsltEvalAttrValueTemplate(xsltTransformContextPtr ctxt, xmlNodePtr inst,
const xmlChar *name, const xmlChar *ns)
{
xmlChar *ret;
xmlChar *expr;
if ((ctxt == NULL) || (inst == NULL) || (name == NULL))
return(NULL);
expr = xsltGetNsProp(inst, name, ns);
if (expr == NULL)
return(NULL);
ret = xsltAttrTemplateValueProcessNode(ctxt, expr, inst);
#ifdef WITH_XSLT_DEBUG_TEMPLATES
XSLT_TRACE(ctxt,XSLT_TRACE_TEMPLATES,xsltGenericDebug(xsltGenericDebugContext,
"xsltEvalAttrValueTemplate: %s returns %s\n", expr, ret));
#endif
if (expr != NULL)
xmlFree(expr);
return(ret);
}
/**
* xsltAttrTemplateValueProcess:
* @ctxt: the XSLT transformation context
* @str: the attribute template node value
*
* Process the given node and return the new string value.
*
* Returns the computed string value or NULL, must be deallocated by the
* caller.
*/
xmlChar *
xsltAttrTemplateValueProcess(xsltTransformContextPtr ctxt, const xmlChar *str) {
return(xsltAttrTemplateValueProcessNode(ctxt, str, NULL));
}
