CMNode.hpp
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- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 1999-2001 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
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- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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- * 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) 1999, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Log: CMNode.hpp,v $
- * Revision 1.5 2003/05/16 21:43:20 knoaman
- * Memory manager implementation: Modify constructors to pass in the memory manager.
- *
- * Revision 1.4 2003/05/15 18:48:27 knoaman
- * Partial implementation of the configurable memory manager.
- *
- * Revision 1.3 2003/03/07 18:16:57 tng
- * Return a reference instead of void for operator=
- *
- * Revision 1.2 2002/11/04 14:54:58 tng
- * C++ Namespace Support.
- *
- * Revision 1.1.1.1 2002/02/01 22:22:38 peiyongz
- * sane_include
- *
- * Revision 1.3 2001/05/11 13:27:17 tng
- * Copyright update.
- *
- * Revision 1.2 2001/02/16 14:58:57 tng
- * Schema: Update Makefile, configure files, project files, and include path in
- * certain cpp files because of the move of the common Content Model files. By Pei Yong Zhang.
- *
- * Revision 1.1 2001/02/16 14:17:29 tng
- * Schema: Move the common Content Model files that are shared by DTD
- * and schema from 'DTD' folder to 'common' folder. By Pei Yong Zhang.
- *
- * Revision 1.5 2000/03/28 19:43:25 roddey
- * Fixes for signed/unsigned warnings. New work for two way transcoding
- * stuff.
- *
- * Revision 1.4 2000/03/02 19:55:37 roddey
- * This checkin includes many changes done while waiting for the
- * 1.1.0 code to be finished. I can't list them all here, but a list is
- * available elsewhere.
- *
- * Revision 1.3 2000/02/24 20:16:48 abagchi
- * Swat for removing Log from API docs
- *
- * Revision 1.2 2000/02/09 21:42:36 abagchi
- * Copyright swat
- *
- * Revision 1.1.1.1 1999/11/09 01:03:05 twl
- * Initial checkin
- *
- * Revision 1.2 1999/11/08 20:45:36 rahul
- * Swat for adding in Product name and CVS comment log variable.
- *
- */
- #if !defined(CMNODE_HPP)
- #define CMNODE_HPP
- #include <xercesc/validators/common/ContentSpecNode.hpp>
- #include <xercesc/validators/common/CMStateSet.hpp>
- XERCES_CPP_NAMESPACE_BEGIN
- class CMNode : public XMemory
- {
- public :
- // -----------------------------------------------------------------------
- // Constructors and Destructors
- // -----------------------------------------------------------------------
- CMNode
- (
- const ContentSpecNode::NodeTypes type
- , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
- );
- virtual ~CMNode();
- // -----------------------------------------------------------------------
- // Virtual methods to be provided derived node classes
- // -----------------------------------------------------------------------
- virtual bool isNullable() const = 0;
- // -----------------------------------------------------------------------
- // Getter methods
- // -----------------------------------------------------------------------
- ContentSpecNode::NodeTypes getType() const;
- const CMStateSet& getFirstPos() const;
- const CMStateSet& getLastPos() const;
- // -----------------------------------------------------------------------
- // Setter methods
- // -----------------------------------------------------------------------
- void setMaxStates(const unsigned int maxStates);
- protected :
- // -----------------------------------------------------------------------
- // Protected, abstract methods
- // -----------------------------------------------------------------------
- virtual void calcFirstPos(CMStateSet& toUpdate) const = 0;
- virtual void calcLastPos(CMStateSet& toUpdate) const = 0;
- // -----------------------------------------------------------------------
- // Protected data members
- //
- // fMemoryManager
- // Pluggable memory manager for dynamic allocation/deallocation.
- // -----------------------------------------------------------------------
- MemoryManager* fMemoryManager;
- private :
- // -----------------------------------------------------------------------
- // Unimplemented constructors and operators
- // -----------------------------------------------------------------------
- CMNode();
- CMNode(const CMNode&);
- CMNode& operator=(const CMNode&);
- // -----------------------------------------------------------------------
- // Private data members
- //
- // fType
- // The type of node. This indicates whether its a leaf or an
- // operation.
- //
- // fFirstPos
- // The set of NFA states that represent the entry states of this
- // node in the DFA.
- //
- // fLastPos
- // The set of NFA states that represent the final states of this
- // node in the DFA.
- //
- // fMaxStates
- // The maximum number of states that the NFA has, which means the
- // max number of NFA states that have to be traced in the state
- // sets during the building of the DFA. Its unfortunate that it
- // has to be stored redundantly, but we need to fault in the
- // state set members and they have to be sized to this size.
- // -----------------------------------------------------------------------
- ContentSpecNode::NodeTypes fType;
- CMStateSet* fFirstPos;
- CMStateSet* fLastPos;
- unsigned int fMaxStates;
- };
- // ---------------------------------------------------------------------------
- // CMNode: Constructors and Destructors
- // ---------------------------------------------------------------------------
- inline CMNode::CMNode(const ContentSpecNode::NodeTypes type,
- MemoryManager* const manager) :
- fMemoryManager(manager)
- , fType(type)
- , fFirstPos(0)
- , fLastPos(0)
- , fMaxStates(~0)
- {
- }
- inline CMNode::~CMNode()
- {
- // Clean up any position sets that got created
- delete fFirstPos;
- delete fLastPos;
- }
- // ---------------------------------------------------------------------------
- // CMNode: Getter methods
- // ---------------------------------------------------------------------------
- inline ContentSpecNode::NodeTypes CMNode::getType() const
- {
- return fType;
- }
- inline const CMStateSet& CMNode::getFirstPos() const
- {
- //
- // Fault in the state set if needed. Since we can't use mutable members
- // cast off the const'ness.
- //
- if (!fFirstPos)
- {
- CMNode* unconstThis = (CMNode*)this;
- unconstThis->fFirstPos = new (fMemoryManager) CMStateSet(fMaxStates, fMemoryManager);
- unconstThis->calcFirstPos(*fFirstPos);
- }
- return *fFirstPos;
- }
- inline const CMStateSet& CMNode::getLastPos() const
- {
- //
- // Fault in the state set if needed. Since we can't use mutable members
- // cast off the const'ness.
- //
- if (!fLastPos)
- {
- CMNode* unconstThis = (CMNode*)this;
- unconstThis->fLastPos = new (fMemoryManager) CMStateSet(fMaxStates, fMemoryManager);
- unconstThis->calcLastPos(*fLastPos);
- }
- return *fLastPos;
- }
- // ---------------------------------------------------------------------------
- // CMNode: Setter methods
- // ---------------------------------------------------------------------------
- inline void CMNode::setMaxStates(const unsigned int maxStates)
- {
- fMaxStates = maxStates;
- }
- XERCES_CPP_NAMESPACE_END
- #endif