source: trunk/src/xmlpatterns/functions/qqnamefns.cpp@ 866

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** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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#include "qanyuri_p.h"
#include "qbuiltintypes_p.h"
#include "qcommonvalues_p.h"
#include "qpatternistlocale_p.h"
#include "qnodenamespaceresolver_p.h"
#include "qqnameconstructor_p.h"
#include "qqnamevalue_p.h"
#include "qatomicstring_p.h"
#include "qxpathhelper_p.h"

#include "qqnamefns_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

Item QNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item paramURI(m_operands.first()->evaluateSingleton(context));
    const QString paramQName(m_operands.last()->evaluateSingleton(context).stringValue());

    QString ns;
    if(paramURI)
        ns = paramURI.stringValue();

    if(!XPathHelper::isQName(paramQName))
    {
        context->error(QtXmlPatterns::tr("%1 is an invalid %2").arg(formatData(paramQName),
                                                     formatType(context->namePool(), BuiltinTypes::xsQName)),
                       ReportContext::FOCA0002, this);
        return Item();
    }

    QString prefix;
    QString lname;
    XPathHelper::splitQName(paramQName, prefix, lname);
    const QXmlName n(context->namePool()->allocateQName(ns, lname, prefix));

    if(ns.isEmpty())
    {
        if(prefix.isEmpty())
            return toItem(QNameValue::fromValue(context->namePool(), n));
        else
        {
            context->error(QtXmlPatterns::tr(
                              "If the first argument is the empty sequence or "
                              "a zero-length string (no namespace), a prefix "
                              "cannot be specified. Prefix %1 was specified.")
                           .arg(formatKeyword(prefix)),
                           ReportContext::FOCA0002, this);
            return Item(); /* Silence compiler warning. */
        }
    }
    else
        return toItem(QNameValue::fromValue(context->namePool(), n));
}

Item ResolveQNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item itemName(m_operands.first()->evaluateSingleton(context));

    if(!itemName)
        return Item();