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Diffstat (limited to 'src/xmlpatterns/parser/qmaintainingreader.cpp')
| -rw-r--r-- | src/xmlpatterns/parser/qmaintainingreader.cpp | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/src/xmlpatterns/parser/qmaintainingreader.cpp b/src/xmlpatterns/parser/qmaintainingreader.cpp new file mode 100644 index 0000000000..0ac0804323 --- /dev/null +++ b/src/xmlpatterns/parser/qmaintainingreader.cpp @@ -0,0 +1,273 @@ +/**************************************************************************** +** +** 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. 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/** + * @file + * @short This file is included by qcastingplatform_p.h. + * If you need includes in this file, put them in CasttingPlatform.h, + * outside of the namespace. + */ + +template<typename TokenLookupClass, + typename LookupKey> +MaintainingReader<TokenLookupClass, LookupKey>::MaintainingReader(const typename ElementDescription<TokenLookupClass, LookupKey>::Hash &elementDescriptions, + const QSet<typename TokenLookupClass::NodeName> &standardAttributes, + const ReportContext::Ptr &context, + QIODevice *const queryDevice) : QXmlStreamReader(queryDevice) + , m_hasHandledStandardAttributes(false) + , m_context(context) + , m_elementDescriptions(elementDescriptions) + , m_standardAttributes(standardAttributes) +{ + Q_ASSERT(m_context); + Q_ASSERT(!m_elementDescriptions.isEmpty()); + + /* We start with stripping. */ + m_stripWhitespace.push(true); +} + +template<typename TokenLookupClass, + typename LookupKey> +MaintainingReader<TokenLookupClass, LookupKey>::~MaintainingReader() +{ +} + +template<typename TokenLookupClass, + typename LookupKey> +QSourceLocation MaintainingReader<TokenLookupClass, LookupKey>::currentLocation() const +{ + return QSourceLocation(documentURI(), + lineNumber(), + columnNumber()); +} + +template<typename TokenLookupClass, + typename LookupKey> +QXmlStreamReader::TokenType MaintainingReader<TokenLookupClass, LookupKey>::readNext() +{ + const TokenType retval = QXmlStreamReader::readNext(); + + switch(retval) + { + case StartElement: + { + m_currentElementName = TokenLookupClass::toToken(name()); + m_currentAttributes = attributes(); + m_hasHandledStandardAttributes = false; + + if(!m_currentAttributes.hasAttribute(QLatin1String("xml:space"))) + m_stripWhitespace.push(m_stripWhitespace.top()); + break; + } + case EndElement: + m_currentElementName = TokenLookupClass::toToken(name()); + m_stripWhitespace.pop(); + break; + default: + break; + } + + return retval; +} + +template<typename TokenLookupClass, + typename LookupKey> +bool MaintainingReader<TokenLookupClass, LookupKey>::isWhitespace() const +{ + return QXmlStreamReader::isWhitespace() + || XPathHelper::isWhitespaceOnly(text()); +} + + +template<typename TokenLookupClass, + typename LookupKey> +void MaintainingReader<TokenLookupClass, LookupKey>::error(const QString &message, + const ReportContext::ErrorCode code) const +{ + m_context->error(message, code, currentLocation()); +} + +template<typename TokenLookupClass, + typename LookupKey> +void MaintainingReader<TokenLookupClass, LookupKey>::warning(const QString &message) const +{ + m_context->warning(message, currentLocation()); +} + +template<typename TokenLookupClass, + typename LookupKey> +typename TokenLookupClass::NodeName MaintainingReader<TokenLookupClass, LookupKey>::currentElementName() const +{ + return m_currentElementName; +} + +template<typename TokenLookupClass, + typename LookupKey> +void MaintainingReader<TokenLookupClass, LookupKey>::validateElement(const LookupKey elementName) const +{ + Q_ASSERT(tokenType() == QXmlStreamReader::StartElement); + + if(m_elementDescriptions.contains(elementName)) + { + const ElementDescription<TokenLookupClass, LookupKey> &desc = m_elementDescriptions.value(elementName); + const int attCount = m_currentAttributes.count(); + + QSet<typename TokenLookupClass::NodeName> encounteredXSLTAtts; + + for(int i = 0; i < attCount; ++i) + { + const QXmlStreamAttribute &attr = m_currentAttributes.at(i); + if(attr.namespaceUri().isEmpty()) + { + const typename TokenLookupClass::NodeName attrName(TokenLookupClass::toToken(attr.name())); + encounteredXSLTAtts.insert(attrName); + + if(!desc.requiredAttributes.contains(attrName) && + !desc.optionalAttributes.contains(attrName) && + !m_standardAttributes.contains(attrName) && + !isAnyAttributeAllowed()) + { + QString translationString; + + QList<typename TokenLookupClass::NodeName> all(desc.requiredAttributes.toList() + desc.optionalAttributes.toList()); + const int totalCount = all.count(); + QStringList allowed; + + for(int i = 0; i < totalCount; ++i) + allowed.append(formatKeyword(toString(all.at(i)))); + + /* Note, we can't run toString() on attrName, because we're in this branch, + * the token lookup doesn't have the string(!).*/ + const QString stringedName(attr.name().toString()); + + if(totalCount == 0) + { + translationString = QtXmlPatterns::tr("Attribute %1 cannot appear on the element %2. Only the standard attributes can appear.") + .arg(formatKeyword(stringedName), + formatKeyword(name())); + } + else if(totalCount == 1) + { + translationString = QtXmlPatterns::tr("Attribute %1 cannot appear on the element %2. Only %3 is allowed, and the standard attributes.") + .arg(formatKeyword(stringedName), + formatKeyword(name()), + allowed.first()); + } + else if(totalCount == 1) + { + /* Note, allowed has already had formatKeyword() applied. */ + translationString = QtXmlPatterns::tr("Attribute %1 cannot appear on the element %2. Allowed is %3, %4, and the standard attributes.") + .arg(formatKeyword(stringedName), + formatKeyword(name()), + allowed.first(), + allowed.last()); + } + else + { + /* Note, allowed has already had formatKeyword() applied. */ + translationString = QtXmlPatterns::tr("Attribute %1 cannot appear on the element %2. Allowed is %3, and the standard attributes.") + .arg(formatKeyword(stringedName), + formatKeyword(name()), + allowed.join(QLatin1String(", "))); + } + + m_context->error(translationString, + ReportContext::XTSE0090, + currentLocation()); + } + } + else if(attr.namespaceUri() == namespaceUri()) + { + m_context->error(QtXmlPatterns::tr("XSL-T attributes on XSL-T elements must be in the null namespace, not in the XSL-T namespace which %1 is.") + .arg(formatKeyword(attr.name())), + ReportContext::XTSE0090, + currentLocation()); + } + /* Else, attributes in other namespaces are allowed, continue. */ + } + + const QSet<typename TokenLookupClass::NodeName> requiredButMissing(QSet<typename TokenLookupClass::NodeName>(desc.requiredAttributes).subtract(encounteredXSLTAtts)); + + if(!requiredButMissing.isEmpty()) + { + error(QtXmlPatterns::tr("The attribute %1 must appear on element %2.") + .arg(formatKeyword(toString(*requiredButMissing.constBegin())), + formatKeyword(name())), + ReportContext::XTSE0010); + } + } + else + { + error(QtXmlPatterns::tr("The element with local name %1 does not exist in XSL-T.").arg(formatKeyword(name())), + ReportContext::XTSE0010); + } +} + +template<typename TokenLookupClass, + typename LookupKey> +bool MaintainingReader<TokenLookupClass, LookupKey>::hasAttribute(const QString &namespaceURI, + const QString &localName) const +{ + Q_ASSERT(tokenType() == QXmlStreamReader::StartElement); + return m_currentAttributes.hasAttribute(namespaceURI, localName); +} + +template<typename TokenLookupClass, + typename LookupKey> +bool MaintainingReader<TokenLookupClass, LookupKey>::hasAttribute(const QString &localName) const +{ + return hasAttribute(QString(), localName); +} + +template<typename TokenLookupClass, + typename LookupKey> +QString MaintainingReader<TokenLookupClass, LookupKey>::readAttribute(const QString &localName, + const QString &namespaceURI) const +{ + Q_ASSERT(tokenType() == QXmlStreamReader::StartElement); + + Q_ASSERT_X(m_currentAttributes.hasAttribute(namespaceURI, localName), + Q_FUNC_INFO, + "Validation must be done before this function is called."); + + return m_currentAttributes.value(namespaceURI, localName).toString(); +} + |