Long live Qt 4.5!

1 files changed, 182 insertions, 0 deletions

diff --git a/src/xmlpatterns/expr/qqnameconstructor_p.h b/src/xmlpatterns/expr/qqnameconstructor_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtXmlPatterns module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_QNameConstructor_H
+#define Patternist_QNameConstructor_H
+
+#include "qsinglecontainer_p.h"
+#include "qbuiltintypes_p.h"
+#include "qpatternistlocale_p.h"
+#include "qxpathhelper_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Creates an @c xs:QName value from a lexical QName using
+     * statically known namespace bindings.
+     *
+     * @see QQNameValue
+     * @see QXmlUtils
+     * @author Frans Englich <fenglich@trolltech.com>
+     * @ingroup Patternist_expressions
+     */
+    class QNameConstructor : public SingleContainer
+    {
+    public:
+
+        QNameConstructor(const Expression::Ptr &source,
+                         const NamespaceResolver::Ptr &nsResolver);
+
+        virtual Item evaluateSingleton(const DynamicContext::Ptr &) const;
+
+        virtual SequenceType::List expectedOperandTypes() const;
+
+        virtual SequenceType::Ptr staticType() const;
+
+        virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
+
+        /**
+         * Expands @p lexicalQName, which is a lexical representation of a QName such as "x:body", into
+         * a QName using @p nsResolver to supply the namespace bindings.
+         *
+         * If @p lexicalQName is lexically invalid @p InvalidQName is raised via @p context, or if
+         * no namespace binding does not exists for a prefix(if any) in @p lexicalQName, @p NoBinding
+         * is raised via @p context.
+         *
+         * If @p asForAttribute is @c true, the name is considered to be for an
+         * attribute in some way, and @p lexicalQName will not pick up the
+         * default namespace if it doesn't have a prefix.
+         *
+         * @p nsResolver is parameterized meaning the function can be instantiated with either
+         * DynamicContext or StaticContext.
+         *
+         * @see QQNameValue
+         * @see QXmlUtils
+         */
+        template<typename TReportContext,
+                 const ReportContext::ErrorCode InvalidQName,
+                 const ReportContext::ErrorCode NoBinding>
+        static
+        QXmlName expandQName(const QString &lexicalQName,
+                             const TReportContext &context,
+                             const NamespaceResolver::Ptr &nsResolver,
+                             const SourceLocationReflection *const r,
+                             const bool asForAttribute = false);
+
+        /**
+         * Resolves the namespace prefix @p prefix to its namespace if it exists, or
+         * raised ReportContext::XPST0081 otherwise.
+         *
+         * @returns the namespace URI corresponding to @p prefix
+         */
+        static QXmlName::NamespaceCode namespaceForPrefix(const QXmlName::PrefixCode prefix,
+                                                          const StaticContext::Ptr &context,
+                                                          const SourceLocationReflection *const r);
+
+        virtual const SourceLocationReflection *actualReflection() const;
+
+    private:
+        const NamespaceResolver::Ptr m_nsResolver;
+    };
+
+    template<typename TReportContext,
+             const ReportContext::ErrorCode InvalidQName,
+             const ReportContext::ErrorCode NoBinding>
+    QXmlName QNameConstructor::expandQName(const QString &lexicalQName,
+                                           const TReportContext &context,
+                                           const NamespaceResolver::Ptr &nsResolver,
+                                           const SourceLocationReflection *const r,
+                                           const bool asForAttribute)
+    {
+        Q_ASSERT(nsResolver);
+        Q_ASSERT(context);
+
+        if(XPathHelper::isQName(lexicalQName))
+        {
+            QString prefix;
+            QString local;
+            XPathHelper::splitQName(lexicalQName, prefix, local);
+            const QXmlName::NamespaceCode nsCode = asForAttribute && prefix.isEmpty() ? QXmlName::NamespaceCode(StandardNamespaces::empty)
+                                                                                   : (nsResolver->lookupNamespaceURI(context->namePool()->allocatePrefix(prefix)));
+
+            if(nsCode == NamespaceResolver::NoBinding)
+            {
+                context->error(QtXmlPatterns::tr("No namespace binding exists for "
+                                  "the prefix %1 in %2").arg(formatKeyword(prefix),
+                                                             formatKeyword(lexicalQName)),
+                               NoBinding,
+                               r);
+                return QXmlName(); /* Silence compiler warning. */
+            }
+            else
+                return context->namePool()->allocateQName(context->namePool()->stringForNamespace(nsCode), local, prefix);
+        }
+        else
+        {
+            context->error(QtXmlPatterns::tr("%1 is an invalid %2")
+                              .arg(formatData(lexicalQName))
+                              .arg(formatType(context->namePool(), BuiltinTypes::xsQName)),
+                           InvalidQName,
+                           r);
+            return QXmlName(); /* Silence compiler warning. */
+        }
+    }
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif