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added support for optional NodeSet argument

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kvisco%ziplink.net 2005-11-02 07:34:11 +00:00
parent dac78a70d8
commit 3f91b73424
1 changed files with 26 additions and 4 deletions
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30
content/xslt/src/xslt/txGenerateIdFunctionCall.cpp
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@ -20,7 +20,7 @@
* Keith Visco, kvisco@ziplink.net
* -- original author.
*
* $Id: txGenerateIdFunctionCall.cpp,v 1.1 2005/11/02 07:33:58 kvisco%ziplink.net Exp $
* $Id: txGenerateIdFunctionCall.cpp,v 1.2 2005/11/02 07:33:59 kvisco%ziplink.net Exp $
*/
#include "XSLTFunctions.h"
@ -49,13 +49,35 @@ ExprResult* GenerateIdFunctionCall::evaluate(Node* context, ContextState* cs) {
Node* node = context;
String id;
int argc = params.getLength();
StringResult* stringResult = 0;
if (argc > 0) {
ListIterator* iter = params.iterator();
Expr* param = iter->next();
delete iter;
ExprResult* exprResult = param->evaluate(context, cs);
if (!exprResult) return new StringResult("");
if (exprResult->getResultType() == ExprResult::NODESET) {
NodeSet* nodes = (NodeSet*) exprResult;
if (nodes->size() == 0)
stringResult = new StringResult("");
else
node = nodes->get(0);
}
else {
String err("Invalid argument passed to generate-id(), expecting NodeSet");
stringResult = new StringResult(err);
}
delete exprResult;
}
if (stringResult) return stringResult;
//-- generate id for selected node
String id;
domHelper->generateId(node, id);
return new StringResult(id);
} //-- evaluate