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3** Copyright (C) 2016 The Qt Company Ltd.
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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_String_H
51#define Patternist_String_H
52
53#include <QUrl>
54
55#include <private/qitem_p.h>
56
57QT_BEGIN_NAMESPACE
58
59namespace QPatternist
60{
61 /**
62 * @short Implements the value instance of the @c xs:string type.
63 *
64 *
65 * This class was originally called String, and correspondingly the header
66 * file was called String.h. However, this broke building on OS X, which
67 * looks up file names case insensitively, and therefore found string.h.
68 *
69 * @author Frans Englich <frans.englich@nokia.com>
70 * @ingroup Patternist_xdm
71 * @todo Documentation is missing/incomplete
72 */
73 class Q_AUTOTEST_EXPORT AtomicString : public AtomicValue
74 {
75 public:
76 friend class CommonValues;
77
78 typedef AtomicValue::Ptr Ptr;
79
80 /**
81 * Creates an instance representing @p value.
82 *
83 * @note This function does not remove the string literal escaping allowed in XPath 2.0
84 */
85 static AtomicString::Ptr fromValue(const QString &value);
86
87 static inline AtomicString::Ptr fromValue(const QUrl &value)
88 {
89 return fromValue(value: value.toString());
90 }
91
92 /**
93 * Get the Effective %Boolean Value of this string. A zero-length
94 * string has an effective boolean value of @c false, in all other cases @c true.
95 *
96 * @returns @c false if the contained string has a zero-length, otherwise @c true.
97 */
98 virtual bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const;
99
100 /**
101 * The string value of a AtomicString instance is the value space.
102 */
103 virtual QString stringValue() const;
104
105 virtual ItemType::Ptr type() const;
106
107 protected:
108 friend class StringComparator;
109 friend class CompareFN;
110 AtomicString(const QString &value);
111 const QString m_value;
112 };
113}
114
115QT_END_NAMESPACE
116
117#endif
118

source code of qtxmlpatterns/src/xmlpatterns/data/qatomicstring_p.h