| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* |
| * $Id: CMLeaf.hpp 568078 2007-08-21 11:43:25Z amassari $ |
| */ |
| |
| #if !defined(CMLEAF_HPP) |
| #define CMLEAF_HPP |
| |
| #include <xercesc/validators/common/CMNode.hpp> |
| |
| |
| XERCES_CPP_NAMESPACE_BEGIN |
| |
| // |
| // This class represents a leaf in the content spec node tree of an |
| // element's content model. It just has an element qname and a position value, |
| // the latter of which is used during the building of a DFA. |
| // |
| class CMLeaf : public CMNode |
| { |
| public : |
| // ----------------------------------------------------------------------- |
| // Constructors |
| // ----------------------------------------------------------------------- |
| CMLeaf |
| ( |
| QName* const element |
| , const unsigned int position = (~0) |
| , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager |
| ); |
| CMLeaf |
| ( |
| QName* const element |
| , const unsigned int position |
| , const bool adopt |
| , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager |
| ); |
| ~CMLeaf(); |
| |
| |
| // ----------------------------------------------------------------------- |
| // Getter methods |
| // ----------------------------------------------------------------------- |
| QName* getElement(); |
| const QName* getElement() const; |
| unsigned int getPosition() const; |
| |
| |
| // ----------------------------------------------------------------------- |
| // Setter methods |
| // ----------------------------------------------------------------------- |
| void setPosition(const unsigned int newPosition); |
| |
| |
| // ----------------------------------------------------------------------- |
| // Implementation of public CMNode virtual interface |
| // ----------------------------------------------------------------------- |
| bool isNullable() const; |
| |
| |
| protected : |
| // ----------------------------------------------------------------------- |
| // Implementation of protected CMNode virtual interface |
| // ----------------------------------------------------------------------- |
| void calcFirstPos(CMStateSet& toSet) const; |
| void calcLastPos(CMStateSet& toSet) const; |
| |
| |
| private : |
| // ----------------------------------------------------------------------- |
| // Private data members |
| // |
| // fElement |
| // This is the element that this leaf represents. |
| // |
| // fPosition |
| // Part of the algorithm to convert a regex directly to a DFA |
| // numbers each leaf sequentially. If its -1, that means its an |
| // epsilon node. All others are non-epsilon positions. |
| // |
| // fAdopt |
| // This node is responsible for the storage of the fElement QName. |
| // ----------------------------------------------------------------------- |
| QName* fElement; |
| unsigned int fPosition; |
| bool fAdopt; |
| |
| // ----------------------------------------------------------------------- |
| // Unimplemented constructors and operators |
| // ----------------------------------------------------------------------- |
| CMLeaf(const CMLeaf&); |
| CMLeaf& operator=(const CMLeaf&); |
| }; |
| |
| |
| // ----------------------------------------------------------------------- |
| // Constructors |
| // ----------------------------------------------------------------------- |
| inline CMLeaf::CMLeaf( QName* const element |
| , const unsigned int position |
| , MemoryManager* const manager) : |
| CMNode(ContentSpecNode::Leaf, manager) |
| , fElement(0) |
| , fPosition(position) |
| , fAdopt(false) |
| { |
| if (!element) |
| { |
| fElement = new (fMemoryManager) QName |
| ( |
| XMLUni::fgZeroLenString |
| , XMLUni::fgZeroLenString |
| , XMLElementDecl::fgInvalidElemId |
| , fMemoryManager |
| ); |
| // We have to be responsible for this QName - override default fAdopt |
| fAdopt = true; |
| } |
| else |
| { |
| fElement = element; |
| } |
| } |
| |
| inline CMLeaf::CMLeaf( QName* const element |
| , const unsigned int position |
| , const bool adopt |
| , MemoryManager* const manager) : |
| CMNode(ContentSpecNode::Leaf, manager) |
| , fElement(0) |
| , fPosition(position) |
| , fAdopt(adopt) |
| { |
| if (!element) |
| { |
| fElement = new (fMemoryManager) QName |
| ( |
| XMLUni::fgZeroLenString |
| , XMLUni::fgZeroLenString |
| , XMLElementDecl::fgInvalidElemId |
| , fMemoryManager |
| ); |
| // We have to be responsible for this QName - override adopt parameter |
| fAdopt = true; |
| } |
| else |
| { |
| fElement = element; |
| } |
| } |
| |
| inline CMLeaf::~CMLeaf() |
| { |
| if (fAdopt) |
| delete fElement; |
| } |
| |
| |
| // --------------------------------------------------------------------------- |
| // Getter methods |
| // --------------------------------------------------------------------------- |
| inline QName* CMLeaf::getElement() |
| { |
| return fElement; |
| } |
| |
| inline const QName* CMLeaf::getElement() const |
| { |
| return fElement; |
| } |
| |
| inline unsigned int CMLeaf::getPosition() const |
| { |
| return fPosition; |
| } |
| |
| |
| // --------------------------------------------------------------------------- |
| // Setter methods |
| // --------------------------------------------------------------------------- |
| inline void CMLeaf::setPosition(const unsigned int newPosition) |
| { |
| fPosition = newPosition; |
| } |
| |
| |
| // --------------------------------------------------------------------------- |
| // Implementation of public CMNode virtual interface |
| // --------------------------------------------------------------------------- |
| inline bool CMLeaf::isNullable() const |
| { |
| // Leaf nodes are never nullable unless its an epsilon node |
| return (fPosition == -1); |
| } |
| |
| |
| // --------------------------------------------------------------------------- |
| // Implementation of protected CMNode virtual interface |
| // --------------------------------------------------------------------------- |
| inline void CMLeaf::calcFirstPos(CMStateSet& toSet) const |
| { |
| // If we are an epsilon node, then the first pos is an empty set |
| if (fPosition == -1) |
| { |
| toSet.zeroBits(); |
| return; |
| } |
| |
| // Otherwise, its just the one bit of our position |
| toSet.setBit(fPosition); |
| } |
| |
| inline void CMLeaf::calcLastPos(CMStateSet& toSet) const |
| { |
| // If we are an epsilon node, then the last pos is an empty set |
| if (fPosition == -1) |
| { |
| toSet.zeroBits(); |
| return; |
| } |
| |
| // Otherwise, its just the one bit of our position |
| toSet.setBit(fPosition); |
| } |
| |
| XERCES_CPP_NAMESPACE_END |
| |
| #endif |