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6 | ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
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39 | |
40 | // |
41 | // W A R N I N G |
42 | // ------------- |
43 | // |
44 | // This file is not part of the Qt API. It exists purely as an |
45 | // implementation detail. This header file may change from version to |
46 | // version without notice, or even be removed. |
47 | // |
48 | // We mean it. |
49 | |
50 | #ifndef Patternist_PatternMatchingFNs_H |
51 | #define Patternist_PatternMatchingFNs_H |
52 | |
53 | #include <private/qpatternplatform_p.h> |
54 | |
55 | /** |
56 | * @file |
57 | * @short Contains classes implementing the functions found in |
58 | * <a href="http://www.w3.org/TR/xpath-functions/#string.match">XQuery 1.0 and |
59 | * XPath 2.0 Functions and Operators, 7.6 AtomicString Functions that Use Pattern Matching</a>. |
60 | * |
61 | * @ingroup Patternist_functions |
62 | */ |
63 | |
64 | QT_BEGIN_NAMESPACE |
65 | |
66 | namespace QPatternist |
67 | { |
68 | /** |
69 | * @short Implements the function <tt>fn:matches()</tt>. |
70 | * |
71 | * @ingroup Patternist_functions |
72 | * @author Frans Englich <frans.englich@nokia.com> |
73 | */ |
74 | class MatchesFN : public PatternPlatform |
75 | { |
76 | public: |
77 | MatchesFN(); |
78 | virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; |
79 | }; |
80 | |
81 | /** |
82 | * @short Implements the function <tt>fn:replace()</tt>. |
83 | * |
84 | * @ingroup Patternist_functions |
85 | * @author Frans Englich <frans.englich@nokia.com> |
86 | */ |
87 | class ReplaceFN : public PatternPlatform |
88 | { |
89 | public: |
90 | ReplaceFN(); |
91 | virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; |
92 | /** |
93 | * Overridden to attempt to pre-compile the replacement string. |
94 | */ |
95 | virtual Expression::Ptr compress(const StaticContext::Ptr &context); |
96 | |
97 | private: |
98 | /** |
99 | * @short Centralizes the translation string. |
100 | */ |
101 | static inline QString errorAtEnd(const char ch); |
102 | |
103 | /** |
104 | * Reads the string in the third argument and converts it to a a QRegExp compatible |
105 | * replacement string, containing sub-group references and so forth. |
106 | */ |
107 | QString parseReplacement(const int captureCount, |
108 | const DynamicContext::Ptr &context) const; |
109 | |
110 | QString m_replacementString; |
111 | }; |
112 | |
113 | /** |
114 | * @short Implements the function <tt>fn:tokenize()</tt>. |
115 | * |
116 | * @ingroup Patternist_functions |
117 | * @author Frans Englich <frans.englich@nokia.com> |
118 | */ |
119 | class TokenizeFN : public PatternPlatform |
120 | { |
121 | public: |
122 | TokenizeFN(); |
123 | inline Item mapToItem(const QString &subject, const DynamicContext::Ptr &) const; |
124 | virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &context) const; |
125 | |
126 | private: |
127 | typedef QExplicitlySharedDataPointer<const TokenizeFN> ConstPtr; |
128 | }; |
129 | } |
130 | |
131 | QT_END_NAMESPACE |
132 | |
133 | #endif |
134 | |