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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.
52 #ifndef Patternist_NamespaceSupport_H
53 #define Patternist_NamespaceSupport_H
55 #include <private/qnamepool_p.h>
57 #include <QtCore/QExplicitlySharedDataPointer>
58 #include <QtCore/QHash>
59 #include <QtCore/QSet>
60 #include <QtCore/QStack>
61 #include <QtCore/QXmlStreamNamespaceDeclarations>
70 * @short A helper class for handling nested namespace declarations.
72 * This class is mostly an adaption of QXmlNamespaceSupport to the NamePool
73 * mechanism used in XmlPatterns.
75 * @ingroup Patternist_schema
76 * @author Tobias Koenig <tobias.koenig@nokia.com>
78 class NamespaceSupport
82 * Describes whether the name to process is an attribute or element.
86 AttributeName, ///< An attribute name to process.
87 ElementName ///< An element name to process.
91 * Creates an empty namespace support object.
96 * Creates a new namespace support object.
98 * @param namePool The name pool where all processed names are stored in.
100 NamespaceSupport(const NamePool::Ptr &namePool);
103 * Adds a new prefix-to-namespace binding.
105 * @param prefixCode The name pool code for the prefix.
106 * @param namespaceCode The name pool code for the namespace.
108 void setPrefix(const QXmlName::PrefixCode prefixCode, const QXmlName::NamespaceCode namespaceCode);
111 * Adds the prefix-to-namespace bindings from @p declarations to
112 * the namespace support.
114 void setPrefixes(const QXmlStreamNamespaceDeclarations &declarations);
117 * Sets the name pool code of the target namespace of the schema the
118 * namespace support works on.
120 void setTargetNamespace(const QXmlName::NamespaceCode code);
123 * Returns the prefix code for the given namespace @p code.
125 QXmlName::PrefixCode prefix(const QXmlName::NamespaceCode code) const;
128 * Returns the namespace code for the given prefix @p code.
130 QXmlName::NamespaceCode uri(const QXmlName::PrefixCode code) const;
133 * Converts the given @p qualifiedName to a resolved QXmlName @p name according
134 * to the current namespace mapping.
136 * @param qualifiedName The full qualified name.
137 * @param type The type of name processing.
138 * @param name The resolved QXmlName.
140 * @returns @c true if the name could be processed correctly or @c false if the
141 * namespace prefix is unknown.
143 bool processName(const QString &qualifiedName, NameType type, QXmlName &name) const;
146 * Pushes the current namespace mapping onto the stack.
151 * Pops the current namespace mapping from the stack.
156 * Returns the list of namespace bindings.
158 QList<QXmlName> namespaceBindings() const;
161 typedef QHash<QXmlName::PrefixCode, QXmlName::NamespaceCode> NamespaceHash;
163 NamePool::Ptr m_namePool;
164 QStack<NamespaceHash> m_nsStack;