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author | Upstream <upstream-import@none> | 1970-01-12 13:46:40 +0000 |
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committer | Upstream <upstream-import@none> | 1970-01-12 13:46:40 +0000 |
commit | d8543bb6618c17b12da906afa77d216f58cf4058 (patch) | |
tree | c58dc05ed86825bd0ef8d305d58c8205106b540f /WebCore/xml/XPathStep.h | |
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external/webkit r30707
Diffstat (limited to 'WebCore/xml/XPathStep.h')
-rw-r--r-- | WebCore/xml/XPathStep.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/WebCore/xml/XPathStep.h b/WebCore/xml/XPathStep.h new file mode 100644 index 0000000..f1420d0 --- /dev/null +++ b/WebCore/xml/XPathStep.h @@ -0,0 +1,104 @@ +/* + * Copyright 2005 Frerich Raabe <raabe@kde.org> + * Copyright (C) 2006 Apple Computer, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef XPathStep_h +#define XPathStep_h + +#if ENABLE(XPATH) + +#include "Node.h" +#include "XPathExpressionNode.h" +#include "XPathNodeSet.h" + +namespace WebCore { + + namespace XPath { + + class Predicate; + + class Step : public ParseNode, Noncopyable { + public: + enum Axis { + AncestorAxis, AncestorOrSelfAxis, AttributeAxis, + ChildAxis, DescendantAxis, DescendantOrSelfAxis, + FollowingAxis, FollowingSiblingAxis, NamespaceAxis, + ParentAxis, PrecedingAxis, PrecedingSiblingAxis, + SelfAxis + }; + + class NodeTest { + public: + enum Kind { + TextNodeTest, CommentNodeTest, ProcessingInstructionNodeTest, AnyNodeTest, NameTest, + ElementNodeTest // XPath 2.0 + }; + + NodeTest(Kind kind) : m_kind(kind) {} + NodeTest(Kind kind, const String& data) : m_kind(kind), m_data(data) {} + NodeTest(Kind kind, const String& data, const String& namespaceURI) : m_kind(kind), m_data(data), m_namespaceURI(namespaceURI) {} + + Kind kind() const { return m_kind; } + const String data() const { return m_data; } + const String namespaceURI() const { return m_namespaceURI; } + + private: + Kind m_kind; + String m_data; + String m_namespaceURI; + }; + + Step(Axis, const NodeTest& nodeTest, const Vector<Predicate*>& predicates = Vector<Predicate*>()); + ~Step(); + + void evaluate(Node* context, NodeSet&) const; + + Axis axis() const { return m_axis; } + NodeTest nodeTest() const { return m_nodeTest; } + const Vector<Predicate*>& predicates() const { return m_predicates; } + + void setAxis(Axis axis) { m_axis = axis; } + void setNodeTest(NodeTest nodeTest) { m_nodeTest = nodeTest; } + void setPredicates(const Vector<Predicate*>& predicates) { m_predicates = predicates; } + + private: + void parseNodeTest(const String&); + void nodesInAxis(Node* context, NodeSet&) const; + bool nodeMatches(Node*) const; + String namespaceFromNodetest(const String& nodeTest) const; + Node::NodeType primaryNodeType(Axis) const; + + Axis m_axis; + NodeTest m_nodeTest; + Vector<Predicate*> m_predicates; + }; + + } + +} + +#endif // ENABLE(XPATH) + +#endif // XPath_Step_H |