1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2015 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtXmlPatterns module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see http://www.qt.io/terms-conditions. For further 15 ** information use the contact form at http://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 2.1 or version 3 as published by the Free 20 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and 21 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the 22 ** following information to ensure the GNU Lesser General Public License 23 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and 24 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 25 ** 26 ** As a special exception, The Qt Company gives you certain additional 27 ** rights. These rights are described in The Qt Company LGPL Exception 28 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. 29 ** 30 ** GNU General Public License Usage 31 ** Alternatively, this file may be used under the terms of the GNU 32 ** General Public License version 3.0 as published by the Free Software 33 ** Foundation and appearing in the file LICENSE.GPL included in the 34 ** packaging of this file. Please review the following information to 35 ** ensure the GNU General Public License version 3.0 requirements will be 36 ** met: http://www.gnu.org/copyleft/gpl.html. 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_String_H 53 #define Patternist_String_H 54 55 #include <QUrl> 56 57 #include "qitem_p.h" 58 59 QT_BEGIN_HEADER 60 61 QT_BEGIN_NAMESPACE 62 63 namespace QPatternist 64 { 65 /** 66 * @short Implements the value instance of the @c xs:string type. 67 * 68 * 69 * This class was originally called String, and correspondingly the header 70 * file was called String.h. However, this broke building on OS X, which 71 * looks up file names case insensitively, and therefore found string.h. 72 * 73 * @author Frans Englich <frans.englich@nokia.com> 74 * @ingroup Patternist_xdm 75 * @todo Documentation is missing/incomplete 76 */ 77 class Q_AUTOTEST_EXPORT AtomicString : public AtomicValue 78 { 79 public: 80 friend class CommonValues; 81 82 typedef AtomicValue::Ptr Ptr; 83 84 /** 85 * Creates an instance representing @p value. 86 * 87 * @note This function does not remove the string literal escaping allowed in XPath 2.0 88 */ 89 static AtomicString::Ptr fromValue(const QString &value); 90 fromValue(const QUrl & value)91 static inline AtomicString::Ptr fromValue(const QUrl &value) 92 { 93 return fromValue(value.toString()); 94 } 95 96 /** 97 * Get the Effective %Boolean Value of this string. A zero-length 98 * string has an effective boolean value of @c false, in all other cases @c true. 99 * 100 * @returns @c false if the contained string has a zero-length, otherwise @c true. 101 */ 102 virtual bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const; 103 104 /** 105 * The string value of a AtomicString instance is the value space. 106 */ 107 virtual QString stringValue() const; 108 109 virtual ItemType::Ptr type() const; 110 111 protected: 112 friend class StringComparator; 113 friend class CompareFN; 114 AtomicString(const QString &value); 115 const QString m_value; 116 }; 117 } 118 119 QT_END_NAMESPACE 120 121 QT_END_HEADER 122 123 #endif 124