Xerces-C++: AbstractDOMParser.hpp Source File

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    00001 /*
    00002  * Licensed to the Apache Software Foundation (ASF) under one or more
    00003  * contributor license agreements.  See the NOTICE file distributed with
    00004  * this work for additional information regarding copyright ownership.
    00005  * The ASF licenses this file to You under the Apache License, Version 2.0
    00006  * (the "License"); you may not use this file except in compliance with
    00007  * the License.  You may obtain a copy of the License at
    00008  *
    00009  *      http://www.apache.org/licenses/LICENSE-2.0
    00010  *
    00011  * Unless required by applicable law or agreed to in writing, software
    00012  * distributed under the License is distributed on an "AS IS" BASIS,
    00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    00014  * See the License for the specific language governing permissions and
    00015  * limitations under the License.
    00016  */
    00017
    00018 /*
    00019  * $Id: AbstractDOMParser.hpp 568078 2007-08-21 11:43:25Z amassari $
    00020  *
    00021  */
    00022 #if !defined(ABSTRACTDOMPARSER_HPP)
    00023 #define ABSTRACTDOMPARSER_HPP
    00024
    00025 #include <xercesc/dom/DOMDocument.hpp>
    00026 #include <xercesc/framework/XMLDocumentHandler.hpp>
    00027 #include <xercesc/framework/XMLErrorReporter.hpp>
    00028 #include <xercesc/framework/XMLEntityHandler.hpp>
    00029 #include <xercesc/util/SecurityManager.hpp>
    00030 #include <xercesc/util/ValueStackOf.hpp>
    00031 #include <xercesc/validators/DTD/DocTypeHandler.hpp>
    00032 #include <xercesc/dom/DOMDocumentType.hpp>
    00033 #include <xercesc/validators/DTD/DTDElementDecl.hpp>
    00034 #include <xercesc/framework/XMLBufferMgr.hpp>
    00035 #include <xercesc/framework/psvi/PSVIHandler.hpp>
    00036
    00037 XERCES_CPP_NAMESPACE_BEGIN
    00038
    00039 class XMLPScanToken;
    00040 class XMLScanner;
    00041 class XMLValidator;
    00042 class DOMDocumentImpl;
    00043 class DOMDocumentTypeImpl;
    00044 class DOMElement;
    00045 class GrammarResolver;
    00046 class XMLGrammarPool;
    00047 class PSVIHandler;
    00048
    00053 class  AbstractDOMParser :
    00054
    00055     public XMemory
    00056     , public XMLDocumentHandler
    00057     , public XMLErrorReporter
    00058     , public XMLEntityHandler
    00059     , public DocTypeHandler
    00060     , public PSVIHandler
    00061 {
    00062 public :
    00063     // -----------------------------------------------------------------------
    00064     //  Class types
    00065     // -----------------------------------------------------------------------
    00068
    00076     enum ValSchemes
    00077     {
    00078         Val_Never
    00079         , Val_Always
    00080         , Val_Auto
    00081     };
    00082
    00084
    00085
    00086     // -----------------------------------------------------------------------
    00087     //  Constructors and Detructor
    00088     // -----------------------------------------------------------------------
    00091
    00095     virtual ~AbstractDOMParser();
    00096
    00098
    00099     // -----------------------------------------------------------------------
    00100     //  Utility methods
    00101     // -----------------------------------------------------------------------
    00102
    00110     void reset();
    00111
    00125     DOMDocument* adoptDocument();
    00126
    00128
    00129
    00130     // -----------------------------------------------------------------------
    00131     //  Getter methods
    00132     // -----------------------------------------------------------------------
    00133
    00136
    00148     DOMDocument* getDocument();
    00149
    00157     const XMLValidator& getValidator() const;
    00158
    00166     ValSchemes getValidationScheme() const;
    00167
    00178     bool getDoSchema() const;
    00179
    00190     bool getValidationSchemaFullChecking() const;
    00191
    00202     bool getIdentityConstraintChecking() const;
    00203
    00215     int getErrorCount() const;
    00216
    00227     bool getDoNamespaces() const;
    00228
    00241     bool getExitOnFirstFatalError() const;
    00242
    00253     bool getValidationConstraintFatal() const;
    00254
    00264     bool  getCreateEntityReferenceNodes()const;
    00265
    00276     bool getIncludeIgnorableWhitespace() const;
    00277
    00297     XMLCh* getExternalSchemaLocation() const;
    00298
    00318     XMLCh* getExternalNoNamespaceSchemaLocation() const;
    00319
    00335     SecurityManager* getSecurityManager() const;
    00336
    00348     bool getLoadExternalDTD() const;
    00349
    00358     bool  getCreateCommentNodes()const;
    00359
    00371     bool getCalculateSrcOfs() const;
    00372
    00383     bool getStandardUriConformant() const;
    00384
    00391     PSVIHandler* getPSVIHandler();
    00392
    00399     const PSVIHandler* getPSVIHandler() const;
    00400
    00410     bool  getCreateSchemaInfo() const;
    00411
    00423     bool getGenerateSyntheticAnnotations() const;
    00424
    00432     bool getValidateAnnotations() const;
    00433
    00441     bool getIgnoreAnnotations() const;
    00442
    00450     bool getDisableDefaultEntityResolution() const;
    00451
    00459     bool getSkipDTDValidation() const;
    00460
    00462
    00463
    00464     // -----------------------------------------------------------------------
    00465     //  Setter methods
    00466     // -----------------------------------------------------------------------
    00467
    00481     void setGenerateSyntheticAnnotations(const bool newValue);
    00482
    00490     void setValidateAnnotations(const bool newValue);
    00491
    00506     void setDoNamespaces(const bool newState);
    00507
    00524     void setExitOnFirstFatalError(const bool newState);
    00525
    00545     void setValidationConstraintFatal(const bool newState);
    00546
    00565     void setCreateEntityReferenceNodes(const bool create);
    00566
    00588     void setIncludeIgnorableWhitespace(const bool include);
    00589
    00606     void setValidationScheme(const ValSchemes newScheme);
    00607
    00623     void setDoSchema(const bool newState);
    00624
    00641     void setValidationSchemaFullChecking(const bool schemaFullChecking);
    00642
    00656     void setIdentityConstraintChecking(const bool newState);
    00657
    00678     void setExternalSchemaLocation(const XMLCh* const schemaLocation);
    00679
    00688     void setExternalSchemaLocation(const char* const schemaLocation);
    00689
    00704     void setExternalNoNamespaceSchemaLocation(const XMLCh* const noNamespaceSchemaLocation);
    00705
    00714     void setExternalNoNamespaceSchemaLocation(const char* const noNamespaceSchemaLocation);
    00715
    00731     void setSecurityManager(SecurityManager* const securityManager);
    00732
    00749     void setLoadExternalDTD(const bool newState);
    00750
    00761     void setCreateCommentNodes(const bool create);
    00762
    00775     void setCalculateSrcOfs(const bool newState);
    00776
    00787     void setStandardUriConformant(const bool newState);
    00788
    00796     void useScanner(const XMLCh* const scannerName);
    00797
    00805     void useImplementation(const XMLCh* const implementationFeatures);
    00806
    00815     virtual void setPSVIHandler(PSVIHandler* const handler);
    00816
    00826     void  setCreateSchemaInfo(const bool newState);
    00827
    00837     void setIgnoreAnnotations(const bool newValue);
    00838
    00853     void setDisableDefaultEntityResolution(const bool newValue);
    00854
    00867     void setSkipDTDValidation(const bool newValue);
    00869
    00870
    00871     // -----------------------------------------------------------------------
    00872     //  Parsing methods
    00873     // -----------------------------------------------------------------------
    00874
    00877
    00893     void parse(const InputSource& source);
    00894
    00911     void parse(const XMLCh* const systemId);
    00912
    00928     void parse(const char* const systemId);
    00929
    00956     bool parseFirst
    00957     (
    00958         const   XMLCh* const    systemId
    00959         ,       XMLPScanToken&  toFill
    00960     );
    00961
    00989     bool parseFirst
    00990     (
    00991         const   char* const     systemId
    00992         ,       XMLPScanToken&  toFill
    00993     );
    00994
    01022     bool parseFirst
    01023     (
    01024         const   InputSource&    source
    01025         ,       XMLPScanToken&  toFill
    01026     );
    01027
    01050     bool parseNext(XMLPScanToken& token);
    01051
    01077     void parseReset(XMLPScanToken& token);
    01078
    01080
    01081     // -----------------------------------------------------------------------
    01082     //  Implementation of the PSVIHandler interface.
    01083     // -----------------------------------------------------------------------
    01084
    01087
    01098     virtual void handleElementPSVI
    01099     (
    01100         const   XMLCh* const            localName
    01101         , const XMLCh* const            uri
    01102         ,       PSVIElement *           elementInfo
    01103     );
    01104
    01105     virtual void handlePartialElementPSVI
    01106     (
    01107         const   XMLCh* const            localName
    01108         , const XMLCh* const            uri
    01109         ,       PSVIElement *           elementInfo
    01110     );
    01122     virtual void handleAttributesPSVI
    01123     (
    01124         const   XMLCh* const            localName
    01125         , const XMLCh* const            uri
    01126         ,       PSVIAttributeList *     psviAttributes
    01127     );
    01129
    01130     // -----------------------------------------------------------------------
    01131     //  Implementation of the XMLDocumentHandler interface.
    01132     // -----------------------------------------------------------------------
    01133
    01136
    01149     virtual void docCharacters
    01150     (
    01151         const   XMLCh* const    chars
    01152         , const unsigned int    length
    01153         , const bool            cdataSection
    01154     );
    01155
    01164     virtual void docComment
    01165     (
    01166         const   XMLCh* const    comment
    01167     );
    01168
    01181     virtual void docPI
    01182     (
    01183         const   XMLCh* const    target
    01184         , const XMLCh* const    data
    01185     );
    01186
    01191     virtual void endDocument();
    01192
    01209     virtual void endElement
    01210     (
    01211         const   XMLElementDecl& elemDecl
    01212         , const unsigned int    urlId
    01213         , const bool            isRoot
    01214         , const XMLCh* const    elemPrefix
    01215     );
    01216
    01225     virtual void endEntityReference
    01226     (
    01227         const   XMLEntityDecl&  entDecl
    01228     );
    01229
    01248     virtual void ignorableWhitespace
    01249     (
    01250         const   XMLCh* const    chars
    01251         , const unsigned int    length
    01252         , const bool            cdataSection
    01253     );
    01254
    01261     virtual void resetDocument();
    01262
    01267     virtual void startDocument();
    01268
    01296     virtual void startElement
    01297     (
    01298         const   XMLElementDecl&         elemDecl
    01299         , const unsigned int            urlId
    01300         , const XMLCh* const            elemPrefix
    01301         , const RefVectorOf<XMLAttr>&   attrList
    01302         , const unsigned int            attrCount
    01303         , const bool                    isEmpty
    01304         , const bool                    isRoot
    01305     );
    01306
    01316     virtual void startEntityReference
    01317     (
    01318         const   XMLEntityDecl&  entDecl
    01319     );
    01320
    01339     virtual void XMLDecl
    01340     (
    01341         const   XMLCh* const    versionStr
    01342         , const XMLCh* const    encodingStr
    01343         , const XMLCh* const    standaloneStr
    01344         , const XMLCh* const    actualEncStr
    01345     );
    01346
    01366     virtual void elementTypeInfo
    01367     (
    01368         const   XMLCh* const    typeName
    01369         , const XMLCh* const    typeURI
    01370     );
    01372
    01373
    01374     // -----------------------------------------------------------------------
    01375     //  Implementation of the deprecated DocTypeHandler interface.
    01376     // -----------------------------------------------------------------------
    01379     virtual void attDef
    01380     (
    01381         const   DTDElementDecl&     elemDecl
    01382         , const DTDAttDef&          attDef
    01383         , const bool                ignoring
    01384     );
    01385
    01386     virtual void doctypeComment
    01387     (
    01388         const   XMLCh* const    comment
    01389     );
    01390
    01391     virtual void doctypeDecl
    01392     (
    01393         const   DTDElementDecl& elemDecl
    01394         , const XMLCh* const    publicId
    01395         , const XMLCh* const    systemId
    01396         , const bool            hasIntSubset
    01397         , const bool            hasExtSubset = false
    01398     );
    01399
    01400     virtual void doctypePI
    01401     (
    01402         const   XMLCh* const    target
    01403         , const XMLCh* const    data
    01404     );
    01405
    01406     virtual void doctypeWhitespace
    01407     (
    01408         const   XMLCh* const    chars
    01409         , const unsigned int    length
    01410     );
    01411
    01412     virtual void elementDecl
    01413     (
    01414         const   DTDElementDecl& decl
    01415         , const bool            isIgnored
    01416     );
    01417
    01418     virtual void endAttList
    01419     (
    01420         const   DTDElementDecl& elemDecl
    01421     );
    01422
    01423     virtual void endIntSubset();
    01424
    01425     virtual void endExtSubset();
    01426
    01427     virtual void entityDecl
    01428     (
    01429         const   DTDEntityDecl&  entityDecl
    01430         , const bool            isPEDecl
    01431         , const bool            isIgnored
    01432     );
    01433
    01434     virtual void resetDocType();
    01435
    01436     virtual void notationDecl
    01437     (
    01438         const   XMLNotationDecl&    notDecl
    01439         , const bool                isIgnored
    01440     );
    01441
    01442     virtual void startAttList
    01443     (
    01444         const   DTDElementDecl& elemDecl
    01445     );
    01446
    01447     virtual void startIntSubset();
    01448
    01449     virtual void startExtSubset();
    01450
    01451     virtual void TextDecl
    01452     (
    01453         const   XMLCh* const    versionStr
    01454         , const XMLCh* const    encodingStr
    01455     );
    01456
    01457
    01459
    01460
    01461     // -----------------------------------------------------------------------
    01462     //  Deprecated Methods
    01463     // -----------------------------------------------------------------------
    01476     bool getDoValidation() const;
    01477
    01491     void setDoValidation(const bool newState);
    01492
    01506     bool getExpandEntityReferences() const;
    01507
    01524     void setExpandEntityReferences(const bool expand);
    01525
    01527
    01528 protected :
    01529     // -----------------------------------------------------------------------
    01530     //  Protected Constructor Methods
    01531     // -----------------------------------------------------------------------
    01550     AbstractDOMParser
    01551     (
    01552           XMLValidator* const   valToAdopt = 0
    01553         , MemoryManager* const  manager = XMLPlatformUtils::fgMemoryManager
    01554         , XMLGrammarPool* const gramPool = 0
    01555     );
    01556
    01558
    01559     // -----------------------------------------------------------------------
    01560     //  Protected getter methods
    01561     // -----------------------------------------------------------------------
    01569     DOMNode* getCurrentNode();
    01570
    01575     XMLScanner* getScanner() const;
    01576
    01581     GrammarResolver* getGrammarResolver() const;
    01582
    01588     bool getParseInProgress() const;
    01589
    01590     MemoryManager* getMemoryManager() const;
    01591
    01593
    01594
    01595     // -----------------------------------------------------------------------
    01596     //  Protected setter methods
    01597     // -----------------------------------------------------------------------
    01598
    01601
    01609     void setCurrentNode(DOMNode* toSet);
    01610
    01617     void setDocument(DOMDocument* toSet);
    01618
    01625     void setParseInProgress(const bool toSet);
    01627
    01628     // -----------------------------------------------------------------------
    01629     //  Protected Helper methods
    01630     // -----------------------------------------------------------------------
    01633     virtual DOMElement* createElementNSNode(const XMLCh *fNamespaceURI,
    01634                                               const XMLCh *qualifiedName);
    01635
    01636     void resetPool();
    01637
    01641     bool isDocumentAdopted() const;
    01642
    01644
    01645
    01646 private :
    01647     // -----------------------------------------------------------------------
    01648     //  Initialize/Cleanup methods
    01649     // -----------------------------------------------------------------------
    01650     void initialize();
    01651     void cleanUp();
    01652     void resetInProgress();
    01653
    01654     // -----------------------------------------------------------------------
    01655     //  Unimplemented constructors and operators
    01656     // -----------------------------------------------------------------------
    01657     AbstractDOMParser(const AbstractDOMParser&);
    01658     AbstractDOMParser& operator=(const AbstractDOMParser&);
    01659
    01660 protected:
    01661     // -----------------------------------------------------------------------
    01662     //  Protected data members
    01663     //
    01664     //  fCurrentNode
    01665     //  fCurrentParent
    01666     //      Used to track the current node during nested element events. Since
    01667     //      the tree must be built from a set of disjoint callbacks, we need
    01668     //      these to keep up with where we currently are.
    01669     //
    01670     //  fCurrentEntity
    01671     //      Used to track the current entity decl.  If a text decl is seen later on,
    01672     //      it is used to update the encoding and version information.
    01673     //
    01674     //  fDocument
    01675     //      The root document object, filled with the document contents.
    01676     //
    01677     //  fCreateEntityReferenceNodes
    01678     //      Indicates whether entity reference nodes should be created.
    01679     //
    01680     //  fIncludeIgnorableWhitespace
    01681     //      Indicates whether ignorable whiltespace should be added to
    01682     //      the DOM tree for validating parsers.
    01683     //
    01684     //  fScanner
    01685     //      The scanner used for this parser. This is created during the
    01686     //      constructor.
    01687     //
    01688     //  fImplementationFeatures
    01689     //      The implementation features that we use to get an implementation
    01690     //      for use in creating the DOMDocument used during parse. If this is
    01691     //      null then the default DOMImplementation is used
    01692     //
    01693     //  fNodeStack
    01694     //      Used to track previous parent nodes during nested element events.
    01695     //
    01696     //  fParseInProgress
    01697     //      Used to prevent multiple entrance to the parser while its doing
    01698     //      a parse.
    01699     //
    01700     //  fWithinElement
    01701     //      A flag to indicate that the parser is within at least one level
    01702     //      of element processing.
    01703     //
    01704     //  fDocumentType
    01705     //      Used to store and update the documentType variable information
    01706     //      in fDocument
    01707     //
    01708     //  fDocumentVector
    01709     //      Store all the previous fDocument(s) (thus not the current fDocument)
    01710     //      created in this parser.  It is destroyed when the parser is destructed.
    01711     //
    01712     //  fCreateCommentNodes
    01713     //      Indicates whether comment nodes should be created.
    01714     //
    01715     //  fDocumentAdoptedByUser
    01716     //      The DOMDocument ownership has been transferred to application
    01717     //      If set to true, the parser does not own the document anymore
    01718     //      and thus will not release its memory.
    01719     //
    01720     //  fInternalSubset
    01721     //      Buffer for storing the internal subset information.
    01722     //      Once complete (after DOCTYPE is finished scanning), send
    01723     //      it to DocumentType Node
    01724     //
    01725     //   fGrammarPool
    01726     //      The grammar pool passed from external application (through derivatives).
    01727     //      which could be 0, not owned.
    01728     //
    01729     //  fCreateSchemaInfo
    01730     //      Indicates whether element and attributes will have schema info associated
    01731     //
    01732     // -----------------------------------------------------------------------
    01733     bool                          fCreateEntityReferenceNodes;
    01734     bool                          fIncludeIgnorableWhitespace;
    01735     bool                          fWithinElement;
    01736     bool                          fParseInProgress;
    01737     bool                          fCreateCommentNodes;
    01738     bool                          fDocumentAdoptedByUser;
    01739     bool                          fCreateSchemaInfo;
    01740     XMLScanner*                   fScanner;
    01741     XMLCh*                        fImplementationFeatures;
    01742     DOMNode*                      fCurrentParent;
    01743     DOMNode*                      fCurrentNode;
    01744     DOMEntity*                    fCurrentEntity;
    01745     DOMDocumentImpl*              fDocument;
    01746     ValueStackOf<DOMNode*>*       fNodeStack;
    01747     DOMDocumentTypeImpl*          fDocumentType;
    01748     RefVectorOf<DOMDocumentImpl>* fDocumentVector;
    01749     GrammarResolver*              fGrammarResolver;
    01750     XMLStringPool*                fURIStringPool;
    01751     XMLValidator*                 fValidator;
    01752     MemoryManager*                fMemoryManager;
    01753     XMLGrammarPool*               fGrammarPool;
    01754     XMLBufferMgr                  fBufMgr;
    01755     XMLBuffer&                    fInternalSubset;
    01756     PSVIHandler*                  fPSVIHandler;
    01757 };
    01758
    01759
    01760
    01761 // ---------------------------------------------------------------------------
    01762 //  AbstractDOMParser: Getter methods
    01763 // ---------------------------------------------------------------------------
    01764 inline bool AbstractDOMParser::getExpandEntityReferences() const
    01765 {
    01766     return !fCreateEntityReferenceNodes;
    01767 }
    01768 inline bool AbstractDOMParser::getCreateEntityReferenceNodes() const
    01769 {
    01770     return fCreateEntityReferenceNodes;
    01771 }
    01772
    01773 inline bool AbstractDOMParser::getIncludeIgnorableWhitespace() const
    01774 {
    01775     return fIncludeIgnorableWhitespace;
    01776 }
    01777
    01778 inline bool AbstractDOMParser::getParseInProgress() const
    01779 {
    01780     return fParseInProgress;
    01781 }
    01782
    01783 inline XMLScanner* AbstractDOMParser::getScanner() const
    01784 {
    01785     return fScanner;
    01786 }
    01787
    01788 inline GrammarResolver* AbstractDOMParser::getGrammarResolver() const
    01789 {
    01790     return fGrammarResolver;
    01791 }
    01792
    01793 inline bool AbstractDOMParser::getCreateCommentNodes() const
    01794 {
    01795     return fCreateCommentNodes;
    01796 }
    01797
    01798 inline PSVIHandler* AbstractDOMParser::getPSVIHandler()
    01799 {
    01800     return fPSVIHandler;
    01801 }
    01802
    01803 inline const PSVIHandler* AbstractDOMParser::getPSVIHandler() const
    01804 {
    01805     return fPSVIHandler;
    01806 }
    01807
    01808 inline bool AbstractDOMParser::getCreateSchemaInfo() const
    01809 {
    01810     return fCreateSchemaInfo;
    01811 }
    01812 // ---------------------------------------------------------------------------
    01813 //  AbstractDOMParser: Setter methods
    01814 // ---------------------------------------------------------------------------
    01815 inline void AbstractDOMParser::setExpandEntityReferences(const bool expand)
    01816 {
    01817     fCreateEntityReferenceNodes = !expand;
    01818 }
    01819
    01820 inline void AbstractDOMParser::setCreateEntityReferenceNodes(const bool create)
    01821 {
    01822     fCreateEntityReferenceNodes = create;
    01823 }
    01824
    01825 inline void AbstractDOMParser::setIncludeIgnorableWhitespace(const bool include)
    01826 {
    01827     fIncludeIgnorableWhitespace = include;
    01828 }
    01829
    01830 inline void AbstractDOMParser::setCreateCommentNodes(const bool create)
    01831 {
    01832     fCreateCommentNodes = create;
    01833 }
    01834
    01835 inline void AbstractDOMParser::useImplementation(const XMLCh* const implementationFeatures)
    01836 {
    01837     fMemoryManager->deallocate(fImplementationFeatures);
    01838     fImplementationFeatures = XMLString::replicate(implementationFeatures, fMemoryManager);
    01839 }
    01840
    01841 // ---------------------------------------------------------------------------
    01842 //  AbstractDOMParser: Protected getter methods
    01843 // ---------------------------------------------------------------------------
    01844 inline DOMNode* AbstractDOMParser::getCurrentNode()
    01845 {
    01846     return fCurrentNode;
    01847 }
    01848
    01849 inline MemoryManager* AbstractDOMParser::getMemoryManager() const
    01850 {
    01851     return fMemoryManager;
    01852 }
    01853
    01854 // ---------------------------------------------------------------------------
    01855 //  AbstractDOMParser: Protected setter methods
    01856 // ---------------------------------------------------------------------------
    01857 inline void AbstractDOMParser::setCurrentNode(DOMNode* toSet)
    01858 {
    01859     fCurrentNode = toSet;
    01860 }
    01861
    01862 inline void AbstractDOMParser::setParseInProgress(const bool toSet)
    01863 {
    01864     fParseInProgress = toSet;
    01865 }
    01866
    01867 XERCES_CPP_NAMESPACE_END
    01868
    01869 #endif
    01870
    01871
    01872

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