XPathMatcher.hpp
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- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2001-2003 The Apache Software Foundation. All rights
- * reserved.
- *
- * 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.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Xerces" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS 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.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation, and was
- * originally based on software copyright (c) 2001, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Id: XPathMatcher.hpp,v 1.6 2003/05/16 21:43:22 knoaman Exp $
- */
- #if !defined(XPATHMATCHER_HPP)
- #define XPATHMATCHER_HPP
- // ---------------------------------------------------------------------------
- // Includes
- // ---------------------------------------------------------------------------
- #include <xercesc/util/ValueStackOf.hpp>
- #include <xercesc/util/RefVectorOf.hpp>
- #include <xercesc/framework/XMLBuffer.hpp>
- XERCES_CPP_NAMESPACE_BEGIN
- // ---------------------------------------------------------------------------
- // Forward Declaration
- // ---------------------------------------------------------------------------
- class XMLElementDecl;
- class XercesXPath;
- class IdentityConstraint;
- class DatatypeValidator;
- class XMLStringPool;
- class XercesLocationPath;
- class XMLAttr;
- class VALIDATORS_EXPORT XPathMatcher : public XMemory
- {
- public:
- // -----------------------------------------------------------------------
- // Constructors/Destructor
- // -----------------------------------------------------------------------
- XPathMatcher(XercesXPath* const xpath,
- MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
- XPathMatcher(XercesXPath* const xpath,
- IdentityConstraint* const ic,
- MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
- virtual ~XPathMatcher();
- // -----------------------------------------------------------------------
- // Getter methods
- // -----------------------------------------------------------------------
- IdentityConstraint* getIdentityConstraint() const { return fIdentityConstraint; }
- MemoryManager* getMemoryManager() const { return fMemoryManager; }
- // -----------------------------------------------------------------------
- // Match methods
- // -----------------------------------------------------------------------
- /**
- * Returns true if XPath has been matched.
- */
- int isMatched();
- virtual int getInitialDepth() const;
- // -----------------------------------------------------------------------
- // XMLDocumentHandler methods
- // -----------------------------------------------------------------------
- virtual void startDocumentFragment();
- virtual void startElement(const XMLElementDecl& elemDecl,
- const unsigned int urlId,
- const XMLCh* const elemPrefix,
- const RefVectorOf<XMLAttr>& attrList,
- const unsigned int attrCount);
- virtual void endElement(const XMLElementDecl& elemDecl,
- const XMLCh* const elemContent);
- protected:
- enum
- {
- XP_MATCHED = 1 // matched any way
- , XP_MATCHED_A = 3 // matched on the attribute axis
- , XP_MATCHED_D = 5 // matched on the descendant-or-self axixs
- , XP_MATCHED_DP = 13 // matched some previous (ancestor) node on the
- // descendant-or-self-axis, but not this node
- };
- // -----------------------------------------------------------------------
- // Match methods
- // -----------------------------------------------------------------------
- /**
- * This method is called when the XPath handler matches the XPath
- * expression. Subclasses can override this method to provide default
- * handling upon a match.
- */
- virtual void matched(const XMLCh* const content,
- DatatypeValidator* const dv, const bool isNil);
- private:
- // -----------------------------------------------------------------------
- // Helper methods
- // -----------------------------------------------------------------------
- void init(XercesXPath* const xpath);
- void cleanUp();
- // -----------------------------------------------------------------------
- // Data members
- //
- // fMatched
- // Indicates whether XPath has been matched or not
- //
- // fNoMatchDepth
- // Indicates whether matching is successful for the given xpath
- // expression.
- //
- // fCurrentStep
- // Stores current step.
- //
- // fStepIndexes
- // Integer stack of step indexes.
- //
- // fLocationPaths
- // fLocationPathSize
- // XPath location path, and its size.
- //
- // fIdentityConstraint
- // The identity constraint we're the matcher for. Only used for
- // selectors.
- //
- // -----------------------------------------------------------------------
- unsigned int fLocationPathSize;
- int* fMatched;
- int* fNoMatchDepth;
- int* fCurrentStep;
- RefVectorOf<ValueStackOf<int> >* fStepIndexes;
- RefVectorOf<XercesLocationPath>* fLocationPaths;
- IdentityConstraint* fIdentityConstraint;
- MemoryManager* fMemoryManager;
- };
- // ---------------------------------------------------------------------------
- // XPathMatcher: Helper methods
- // ---------------------------------------------------------------------------
- inline void XPathMatcher::cleanUp() {
- fMemoryManager->deallocate(fMatched);//delete [] fMatched;
- fMemoryManager->deallocate(fNoMatchDepth);//delete [] fNoMatchDepth;
- fMemoryManager->deallocate(fCurrentStep);//delete [] fCurrentStep;
- delete fStepIndexes;
- }
- XERCES_CPP_NAMESPACE_END
- #endif
- /**
- * End of file XPathMatcher.hpp
- */