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** This file is part of the QtXmlPatterns module of the Qt Toolkit. | |
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** rights. These rights are described in the Nokia Qt LGPL Exception | |
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** GNU General Public License Usage | |
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// | |
// 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 "qtemplate_p.h" | |
QT_BEGIN_HEADER | |
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 | |
QT_END_HEADER | |
#endif | |