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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
64QT_BEGIN_NAMESPACE
65
66namespace 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
131QT_END_NAMESPACE
132
133#endif
134

source code of qtxmlpatterns/src/xmlpatterns/functions/qpatternmatchingfns_p.h