diff -r 000000000000 -r 1918ee327afb src/xmlpatterns/functions/qstringvaluefns_p.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/xmlpatterns/functions/qstringvaluefns_p.h Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,293 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtXmlPatterns module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. + +#ifndef Patternist_StringValueFNs_H +#define Patternist_StringValueFNs_H + +#include + +#include "qfunctioncall_p.h" + +/** + * @file + * @short Contains classes implementing the functions found in + * XQuery 1.0 and + * XPath 2.0 Functions and Operators, 7.4 Functions on AtomicString Values. + * + * @ingroup Patternist_functions + */ + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +namespace QPatternist +{ + + /** + * @short Implements the function fn:concat(). + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class ConcatFN : public FunctionCall + { + public: + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + }; + + /** + * @short Implements the function fn:string-join(). + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class StringJoinFN : public FunctionCall + { + public: + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + + /** + * Optimization: when the cardinality of the sequence of items to join + * cannot be two or more, we have no effect and therefore rewrite + * ourselves to our first operand. + */ + virtual Expression::Ptr compress(const StaticContext::Ptr &context); + }; + + /** + * @short Implements the function fn:substring(). + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class SubstringFN : public FunctionCall + { + public: + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + }; + + /** + * @short Implements the function fn:string-length(). + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class StringLengthFN : public FunctionCall + { + public: + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + }; + + /** + * @short Implements the function fn:normalize-space(). + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class NormalizeSpaceFN : public FunctionCall + { + public: + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + }; + + /** + * @short Implements the function fn:normalize-unicode(). + * + * What perhaps can be said significant with the implementation, is that it + * attempts to determine the normalization form at compile time, in order to + * reduce string work at runtime. + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class NormalizeUnicodeFN : public FunctionCall + { + public: + /** + * Initializes private data. + */ + NormalizeUnicodeFN(); + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + virtual Expression::Ptr compress(const StaticContext::Ptr &context); + + private: + int determineNormalizationForm(const DynamicContext::Ptr &context) const; + QString::NormalizationForm m_normForm; + }; + + /** + * @short Implements the function fn:upper-case(). + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class UpperCaseFN : public FunctionCall + { + public: + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + }; + + /** + * @short Implements the function fn:lower-case(). + * + * @short Implements the function fn:concat(). + * @ingroup Patternist_functions + * @author Frans Englich + */ + class LowerCaseFN : public FunctionCall + { + public: + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + }; + + /** + * @short Implements the function fn:translate(). + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class TranslateFN : public FunctionCall + { + public: + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + }; + + /** + * @short Provides functionality for encoding strings. Sub-classed by various + * function implementations. + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class EncodeString : public FunctionCall + { + public: + /** + * Evaluates its first operand. If it is the empty sequence, an empty string + * is returned. Otherwise, the item's string value is returned percent encoded + * as specified in this class's constructor. + */ + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + + protected: + /** + * Encodes its operand with QUrl::toPercentEncoding(), with @p includeChars as + * the characters to encode, and @p excludeChars as the characters to not encode. + */ + EncodeString(const QByteArray &excludeChars, const QByteArray &includeChars); + + private: + const QByteArray m_excludeChars; + const QByteArray m_includeChars; + }; + + /** + * @short Implements the function fn:encode-for-uri(). + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class EncodeForURIFN : public EncodeString + { + public: + /** + * Performs internal initialization. + */ + EncodeForURIFN(); + + private: + static const char *const include; + }; + + /** + * @short Implements the function fn:iri-to-uri(). + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class IriToURIFN : public EncodeString + { + public: + /** + * Performs internal initialization. + */ + IriToURIFN(); + + private: + static const char *const exclude; + }; + + /** + * @short Implements the function fn:escape-html-uri(). + * + * @ingroup Patternist_functions + * @author Frans Englich + */ + class EscapeHtmlURIFN : public EncodeString + { + public: + /** + * Performs internal initialization. + */ + EscapeHtmlURIFN(); + + private: + static const char *const include; + static const char *const exclude; + }; +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif