Initial import of statemachine branch from the old kinetic repository

1 files changed, 183 insertions, 0 deletions

diff --git a/src/xmlpatterns/functions/qpatternplatform_p.h b/src/xmlpatterns/functions/qpatternplatform_p.h
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+++ b/src/xmlpatterns/functions/qpatternplatform_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_PatternPlatform_H
+#define Patternist_PatternPlatform_H
+
+#include <QFlags>
+#include <QRegExp>
+
+#include "qfunctioncall_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Contains functionality for functions and expressions that
+     * uses regular expressions.
+     *
+     * @ingroup Patternist_utils
+     * @author Frans Englich <fenglich@trolltech.com>
+     */
+    class PatternPlatform : public FunctionCall
+    {
+    public:
+        /**
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#flags">XQuery 1.0 and
+         * XPath 2.0 Functions and Operators, 7.6.1.1 Flags</a>
+         */
+        enum Flag
+        {
+            /**
+             * No flags are set. Default behavior is used.
+             */
+            NoFlags             = 0,
+
+            /**
+             * Flag @c s
+             */
+            DotAllMode          = 1,
+
+            /**
+             * Flag @c m
+             */
+            MultiLineMode       = 2,
+
+            /**
+             * Flag @c i
+             */
+            CaseInsensitive     = 4,
+
+            /**
+             * Flag @c x
+             */
+            SimplifyWhitespace  = 8
+        };
+        typedef QFlags<Flag> Flags;
+
+        virtual Expression::Ptr compress(const StaticContext::Ptr &context);
+
+        /**
+         * Retrieves the pattern supplied in the arguments, taking care of compiling it,
+         * settings its flags, and everything else required for getting it ready to use. If an error
+         * occurs, an appropriate error is raised via @p context.
+         */
+        const QRegExp pattern(const DynamicContext::Ptr &context) const;
+
+        /**
+         * @returns the number of captures, also called parenthesized sub-expressions, the pattern has.
+         *
+         * If the pattern isn't precompiled, -1 is returned.
+         */
+        inline int captureCount() const;
+
+    protected:
+        /**
+         * @short This constructor is protected, because this class is supposed to be sub-classed.
+         *
+         * @param flagsPosition an index position specifying the operand containing the pattern
+         * flags.
+         */
+        PatternPlatform(const qint8 flagsPosition);
+
+    private:
+        /**
+         * Enum telling whether the flags, pattern, or both
+         * have been compiled at compile time.
+         */
+        enum PreCompiledPart
+        {
+            NoPart          = 0,
+            PatternPrecompiled     = 1,
+            FlagsPrecompiled       = 2,
+            FlagsAndPattern = PatternPrecompiled | FlagsPrecompiled
+
+        };
+        typedef QFlags<PreCompiledPart> PreCompiledParts;
+
+        Q_DISABLE_COPY(PatternPlatform)
+
+        Flags parseFlags(const QString &flags,
+                         const DynamicContext::Ptr &context) const;
+
+        QRegExp parsePattern(const QString &pattern,
+                             const DynamicContext::Ptr &context) const;
+
+        static void applyFlags(const Flags flags, QRegExp &pattern);
+
+        /**
+         * The parts that have been pre-compiled at compile time.
+         */
+        PreCompiledParts    m_compiledParts;
+        Flags               m_flags;
+        QRegExp             m_pattern;
+        const qint8         m_flagsPosition;
+    };
+
+    inline int PatternPlatform::captureCount() const
+    {
+        if(m_compiledParts.testFlag(PatternPrecompiled))
+            return m_pattern.numCaptures();
+        else
+            return -1;
+    }
+
+    Q_DECLARE_OPERATORS_FOR_FLAGS(PatternPlatform::Flags)
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif