/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Qt Software Information (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 either Technology Preview License Agreement or the ** Beta Release License Agreement. ** ** 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. 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This header file may change from version to // version without notice, or even be removed. // // We mean it. #ifndef Patternist_AnyURI_H #define Patternist_AnyURI_H #include #include #include "qatomicstring_p.h" #include "qbuiltintypes_p.h" #include "qpatternistlocale_p.h" #include "qreportcontext_p.h" QT_BEGIN_HEADER QT_BEGIN_NAMESPACE namespace QPatternist { /** * @short A value of type xs:anyURI. * * Due to bugs in QUrl and slight differences in behavior and * interpretation, QUrl can never be used directly for dealing with URIs, * values of type @c xs:anyURI. Therefore, it's important to use the * functionality this class provides, such as the functions toQUrl(), * fromLexical(), isValid(), and resolveURI(). * * @see QUrl * @author Frans Englich * @ingroup Patternist_xdm */ class AnyURI : public AtomicString { public: typedef QExplicitlySharedDataPointer Ptr; /** * Creates an instance representing @p value. * * @note @p value must be a valid @c xs:anyURI. If it is of interest * to construct from a lexical representation, use fromLexical(). */ static AnyURI::Ptr fromValue(const QString &value); static AnyURI::Ptr fromValue(const QUrl &uri); /** * @short Treates @p value as a lexical representation of @c xs:anyURI * but returns the value instance as a QUrl. * * If @p value is not a valid lexical representation of @c xs:anyURI, * an error is issued via @p context. * * If @p isValid is passed, no error is raised and it is instead set * appropriately. */ template static inline QUrl toQUrl(const QString &value, const TReportContext &context, const SourceLocationReflection *const r, bool *const isValid = 0, const bool issueError = true) { /* QUrl doesn't flag ":/..." so we workaround it. */ const QString simplified(value.simplified()); const QUrl uri(simplified, QUrl::StrictMode); if(uri.isEmpty() || (uri.isValid() && (!simplified.startsWith(QLatin1Char(':')) || !uri.isRelative()))) { if(isValid) *isValid = true; return uri; } else { if(isValid) *isValid = false; if(issueError) { context->error(QtXmlPatterns::tr("%1 is not a valid value of type %2.").arg(formatURI(value), formatType(context->namePool(), BuiltinTypes::xsAnyURI)), code, r); } return QUrl(); } } /** * @short Return @c true if @p candidate is a valid @c xs:anyURI, * otherwise @c false. */ static bool isValid(const QString &candidate); /** * @short Constructs a @c xs:anyURI value from the lexical representation @p value. * * If @p value is not a valid lexical representation of @c xs:anyURI, * an error is issued via @p context. */ template static inline AnyURI::Ptr fromLexical(const QString &value, const TReportContext &context, const SourceLocationReflection *const r) { return AnyURI::Ptr(new AnyURI(toQUrl(value, context, r).toString())); } /** * If @p value is not a valid lexical representation for @c xs:anyURI, * a ValidationError is returned. */ static AnyURI::Ptr fromLexical(const QString &value); /** * Creates an AnyURI instance representing an absolute URI which * is created from resolving @p relative against @p base. * * This function must be compatible with the resolution semantics * specified for fn:resolve-uri. In fact, the implementation of fn:resolve-uri, * ResourceURIFN, relies on this function. * * @see RFC 3986 - Uniform * Resource Identifier (URI): Generic Syntax * @see XQuery 1.0 * and XPath 2.0 Functions and Operators, 8.1 fn:resolve-uri */ static AnyURI::Ptr resolveURI(const QString &relative, const QString &base); virtual ItemType::Ptr type() const; /** * @short Returns this @c xs:anyURI value in a QUrl. */ inline QUrl toQUrl() const { Q_ASSERT_X(QUrl(m_value).isValid(), Q_FUNC_INFO, qPrintable(QString::fromLatin1("%1 is apparently not ok for QUrl.").arg(m_value))); return QUrl(m_value); } protected: friend class CommonValues; AnyURI(const QString &value); }; /** * @short Formats @p uri, that's considered to be a URI, for display. */ static inline QString formatURI(const NamePool::Ptr &np, const QXmlName::NamespaceCode &uri) { return formatURI(np->stringForNamespace(uri)); } } QT_END_NAMESPACE QT_END_HEADER #endif