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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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_TemplatePattern_H
#define Patternist_TemplatePattern_H
#include <private/qtemplate_p.h>
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Houses the data necessary for a template pattern.
*
* A template pattern is the match pattern, but have had each operand to @c
* | separated out into a separate TemplatePattern. For instance, the
* pattern <tt>a | b | c</tt>, becomes three separate TemplatePattern
* instances.
*
* @see TemplateMode
* @see Template
* @author Frans Englich <frans.englich@nokia.com>
* @ingroup Patternist_expressions
* @since 4.5
*/
class TemplatePattern : public QSharedData
{
public:
typedef QExplicitlySharedDataPointer<TemplatePattern> Ptr;
typedef QVector<Ptr> Vector;
typedef int ID;
inline TemplatePattern(const Expression::Ptr &matchPattern,
const PatternPriority pri,
const ID id,
const Template::Ptr templ);
inline PatternPriority priority() const;
inline const Expression::Ptr &matchPattern() const;
inline void setMatchPattern(const Expression::Ptr &pattern);
inline const Template::Ptr &templateTarget() const;
inline ID id() const;
/**
* This ID is used to ensure that, as 6.4 Conflict Resolution for
* Template Rules reads:
*
* "If the pattern contains multiple alternatives separated by |, then
* the template rule is treated equivalently to a set of template
* rules, one for each alternative. However, it is not an error if a
* node matches more than one of the alternatives."
*
* For patterns separated by @c |, we have one Template instance for
* each alternative, but they all have the same ID, hence if several
* alternatives match, we don't flag it as an error if they have the
* same ID.
*/
private:
Expression::Ptr m_matchPattern;
PatternPriority m_priority;
ID m_id;
Template::Ptr m_templateTarget;
Q_DISABLE_COPY(TemplatePattern)
};
TemplatePattern::TemplatePattern(const Expression::Ptr &matchPattern,
const PatternPriority pri,
const ID id,
const Template::Ptr templ) : m_matchPattern(matchPattern)
, m_priority(pri)
, m_id(id)
, m_templateTarget(templ)
{
Q_ASSERT(m_matchPattern);
Q_ASSERT(m_templateTarget);
}
const Expression::Ptr &TemplatePattern::matchPattern() const
{
return m_matchPattern;
}
void TemplatePattern::setMatchPattern(const Expression::Ptr &pattern)
{
m_matchPattern = pattern;
}
PatternPriority TemplatePattern::priority() const
{
return m_priority;
}
TemplatePattern::ID TemplatePattern::id() const
{
return m_id;
}
const Template::Ptr &TemplatePattern::templateTarget() const
{
return m_templateTarget;
}
}
QT_END_NAMESPACE
#endif
|
