--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/xml/XPathParser.h Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,131 @@
+/*
+ * Copyright 2005 Maksim Orlovich <maksim@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 XPathParser_h
+#define XPathParser_h
+
+#if ENABLE(XPATH)
+
+#include "XPathStep.h"
+#include "XPathPredicate.h"
+
+namespace WebCore {
+
+ typedef int ExceptionCode;
+
+ class XPathNSResolver;
+
+ namespace XPath {
+
+ class Expression;
+ class ParseNode;
+ class Predicate;
+
+ struct Token {
+ int type;
+ String str;
+ Step::Axis axis;
+ NumericOp::Opcode numop;
+ EqTestOp::Opcode eqop;
+
+ Token(int t) : type(t) {}
+ Token(int t, const String& v): type(t), str(v) {}
+ Token(int t, Step::Axis v): type(t), axis(v) {}
+ Token(int t, NumericOp::Opcode v): type(t), numop(v) {}
+ Token(int t, EqTestOp::Opcode v): type(t), eqop(v) {}
+ };
+
+ class Parser : Noncopyable {
+ public:
+ Parser();
+
+ XPathNSResolver* resolver() const { return m_resolver.get(); }
+ bool expandQName(const String& qName, String& localName, String& namespaceURI);
+
+ Expression* parseStatement(const String& statement, PassRefPtr<XPathNSResolver>, ExceptionCode&);
+
+ static Parser* current() { return currentParser; }
+
+ int lex(void* yylval);
+
+ Expression* m_topExpr;
+ bool m_gotNamespaceError;
+
+ void registerParseNode(ParseNode*);
+ void unregisterParseNode(ParseNode*);
+
+ void registerPredicateVector(Vector<Predicate*>*);
+ void deletePredicateVector(Vector<Predicate*>*);
+
+ void registerExpressionVector(Vector<Expression*>*);
+ void deleteExpressionVector(Vector<Expression*>*);
+
+ void registerString(String*);
+ void deleteString(String*);
+
+ void registerNodeTest(Step::NodeTest*);
+ void deleteNodeTest(Step::NodeTest*);
+
+ private:
+ bool isOperatorContext() const;
+
+ void skipWS();
+ Token makeTokenAndAdvance(int type, int advance = 1);
+ Token makeTokenAndAdvance(int type, NumericOp::Opcode, int advance = 1);
+ Token makeTokenAndAdvance(int type, EqTestOp::Opcode, int advance = 1);
+ char peekAheadHelper();
+ char peekCurHelper();
+
+ Token lexString();
+ Token lexNumber();
+ bool lexNCName(String&);
+ bool lexQName(String&);
+
+ Token nextToken();
+ Token nextTokenInternal();
+
+ void reset(const String& data);
+
+ static Parser* currentParser;
+
+ unsigned m_nextPos;
+ String m_data;
+ int m_lastTokenType;
+ RefPtr<XPathNSResolver> m_resolver;
+
+ HashSet<ParseNode*> m_parseNodes;
+ HashSet<Vector<Predicate*>*> m_predicateVectors;
+ HashSet<Vector<Expression*>*> m_expressionVectors;
+ HashSet<String*> m_strings;
+ HashSet<Step::NodeTest*> m_nodeTests;
+ };
+
+ }
+}
+
+#endif // ENABLE(XPATH)
+
+#endif