/* * path.h - Copyright 2005 Frerich Raabe * 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 XPathPath_h #define XPathPath_h #if ENABLE(XPATH) #include "XPathExpressionNode.h" #include "XPathNodeSet.h" int xpathyyparse(void*); namespace WebCore { namespace XPath { class Predicate; class Step; class Filter : public Expression { public: Filter(Expression*, const Vector& = Vector()); virtual ~Filter(); virtual Value evaluate() const; private: Expression* m_expr; Vector m_predicates; }; class LocationPath : public Expression { public: LocationPath(); virtual ~LocationPath(); void setAbsolute(bool value) { m_absolute = value; } virtual Value evaluate() const; void evaluate(NodeSet& nodes) const; // nodes is an input/output parameter void appendStep(Step* step); void insertFirstStep(Step* step); private: void optimizeStepPair(unsigned index); Vector m_steps; bool m_absolute; }; class Path : public Expression { public: Path(Filter*, LocationPath*); virtual ~Path(); virtual Value evaluate() const; private: Filter* m_filter; LocationPath* m_path; }; } } #endif // ENABLE(XPATH) #endif // XPath_Path_H