|
1 /**************************************************************************** |
|
2 ** |
|
3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
|
4 ** All rights reserved. |
|
5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
|
6 ** |
|
7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
|
8 ** |
|
9 ** $QT_BEGIN_LICENSE:LGPL$ |
|
10 ** No Commercial Usage |
|
11 ** This file contains pre-release code and may not be distributed. |
|
12 ** You may use this file in accordance with the terms and conditions |
|
13 ** contained in the Technology Preview License Agreement accompanying |
|
14 ** this package. |
|
15 ** |
|
16 ** GNU Lesser General Public License Usage |
|
17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
|
18 ** General Public License version 2.1 as published by the Free Software |
|
19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
|
20 ** packaging of this file. Please review the following information to |
|
21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
|
22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
|
23 ** |
|
24 ** In addition, as a special exception, Nokia gives you certain additional |
|
25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
|
26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
|
27 ** |
|
28 ** If you have questions regarding the use of this file, please contact |
|
29 ** Nokia at qt-info@nokia.com. |
|
30 ** |
|
31 ** |
|
32 ** |
|
33 ** |
|
34 ** |
|
35 ** |
|
36 ** |
|
37 ** |
|
38 ** $QT_END_LICENSE$ |
|
39 ** |
|
40 ****************************************************************************/ |
|
41 |
|
42 // |
|
43 // W A R N I N G |
|
44 // ------------- |
|
45 // |
|
46 // This file is not part of the Qt API. It exists purely as an |
|
47 // implementation detail. This header file may change from version to |
|
48 // version without notice, or even be removed. |
|
49 // |
|
50 // We mean it. |
|
51 |
|
52 #ifndef Patternist_TemplatePattern_H |
|
53 #define Patternist_TemplatePattern_H |
|
54 |
|
55 #include "qtemplate_p.h" |
|
56 |
|
57 QT_BEGIN_HEADER |
|
58 QT_BEGIN_NAMESPACE |
|
59 |
|
60 namespace QPatternist |
|
61 { |
|
62 /** |
|
63 * @short Houses the data necessary for a template pattern. |
|
64 * |
|
65 * A template pattern is the match pattern, but have had each operand to @c |
|
66 * | separated out into a separate TemplatePattern. For instance, the |
|
67 * pattern <tt>a | b | c</tt>, becomes three separate TemplatePattern |
|
68 * instances. |
|
69 * |
|
70 * @see TemplateMode |
|
71 * @see Template |
|
72 * @author Frans Englich <frans.englich@nokia.com> |
|
73 * @ingroup Patternist_expressions |
|
74 * @since 4.5 |
|
75 */ |
|
76 class TemplatePattern : public QSharedData |
|
77 { |
|
78 public: |
|
79 typedef QExplicitlySharedDataPointer<TemplatePattern> Ptr; |
|
80 typedef QVector<Ptr> Vector; |
|
81 typedef int ID; |
|
82 |
|
83 inline TemplatePattern(const Expression::Ptr &matchPattern, |
|
84 const PatternPriority pri, |
|
85 const ID id, |
|
86 const Template::Ptr templ); |
|
87 |
|
88 inline PatternPriority priority() const; |
|
89 inline const Expression::Ptr &matchPattern() const; |
|
90 inline void setMatchPattern(const Expression::Ptr &pattern); |
|
91 inline const Template::Ptr &templateTarget() const; |
|
92 inline ID id() const; |
|
93 |
|
94 /** |
|
95 * This ID is used to ensure that, as 6.4 Conflict Resolution for |
|
96 * Template Rules reads: |
|
97 * |
|
98 * "If the pattern contains multiple alternatives separated by |, then |
|
99 * the template rule is treated equivalently to a set of template |
|
100 * rules, one for each alternative. However, it is not an error if a |
|
101 * node matches more than one of the alternatives." |
|
102 * |
|
103 * For patterns separated by @c |, we have one Template instance for |
|
104 * each alternative, but they all have the same ID, hence if several |
|
105 * alternatives match, we don't flag it as an error if they have the |
|
106 * same ID. |
|
107 */ |
|
108 private: |
|
109 Expression::Ptr m_matchPattern; |
|
110 PatternPriority m_priority; |
|
111 ID m_id; |
|
112 Template::Ptr m_templateTarget; |
|
113 Q_DISABLE_COPY(TemplatePattern) |
|
114 }; |
|
115 |
|
116 TemplatePattern::TemplatePattern(const Expression::Ptr &matchPattern, |
|
117 const PatternPriority pri, |
|
118 const ID id, |
|
119 const Template::Ptr templ) : m_matchPattern(matchPattern) |
|
120 , m_priority(pri) |
|
121 , m_id(id) |
|
122 , m_templateTarget(templ) |
|
123 |
|
124 { |
|
125 Q_ASSERT(m_matchPattern); |
|
126 Q_ASSERT(m_templateTarget); |
|
127 } |
|
128 |
|
129 const Expression::Ptr &TemplatePattern::matchPattern() const |
|
130 { |
|
131 return m_matchPattern; |
|
132 } |
|
133 |
|
134 void TemplatePattern::setMatchPattern(const Expression::Ptr &pattern) |
|
135 { |
|
136 m_matchPattern = pattern; |
|
137 } |
|
138 |
|
139 PatternPriority TemplatePattern::priority() const |
|
140 { |
|
141 return m_priority; |
|
142 } |
|
143 |
|
144 TemplatePattern::ID TemplatePattern::id() const |
|
145 { |
|
146 return m_id; |
|
147 } |
|
148 |
|
149 const Template::Ptr &TemplatePattern::templateTarget() const |
|
150 { |
|
151 return m_templateTarget; |
|
152 } |
|
153 |
|
154 } |
|
155 |
|
156 QT_END_NAMESPACE |
|
157 |
|
158 QT_END_HEADER |
|
159 |
|
160 #endif |
|
161 |