#include "../config/pathan_config.h"
/*
 * Copyright (c) 2001, DecisionSoft Limited All rights reserved.
 * Please see LICENSE.TXT for more information.
 */

#include <pathan/functions/FunctionExpandedQName.hpp>
#include <pathan/XPath2Utils.hpp>
#include <pathan/DynamicContext.hpp>
#include <pathan/ATStringOrDerived.hpp>
#include <pathan/Sequence.hpp>
#include <pathan/ATQNameOrDerived.hpp>
#include <pathan/internal/factory/DatatypeFactory.hpp>

const XMLCh FunctionExpandedQName::name[] = {
XERCES_CPP_NAMESPACE_QUALIFIER chLatin_e, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_x, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_p, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_a, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_n, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_d, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_e, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_d, XERCES_CPP_NAMESPACE_QUALIFIER chDash, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_Q, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_N, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_a, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_m, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_e, XERCES_CPP_NAMESPACE_QUALIFIER chNull };

/**
 * fn:expanded-QName($paramURI as xs:string?, $paramLocal as xs:string) as xs:QName
**/

/** Returns a QName with the URI given in $paramURI and the localname
 * given in $paramLocal **/

FunctionExpandedQName::FunctionExpandedQName(const VectorOfDataItems &args, XPath2MemoryManager* memMgr)
  : ConstantFoldingFunction(name,2, 2, "string?, string", args, memMgr)
{
}

Sequence FunctionExpandedQName::collapseTreeInternal(DynamicContext* context, int flags) const {
  Sequence paramURIseq = getParamNumber(1, context);
  Sequence paramLocalseq = getParamNumber(2, context);

  const XMLCh* uri = NULL;
  if(!paramURIseq.isEmpty())
    uri=((const ATStringOrDerived*)(paramURIseq.first()))->asString(context);
  const XMLCh* local = ((const ATStringOrDerived*)(paramLocalseq.first()))->asString(context);
  //Construct QName here
  Sequence result(DatatypeFactory::STR2AT::createQName(context->getMemoryManager(), uri, local, context),
                  context->getMemoryManager());

	return result;
}