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SAX2XMLReader.hpp

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00001 /*
00002  * The Apache Software License, Version 1.1
00003  *
00004  * Copyright (c) 1999-2001 The Apache Software Foundation.  All rights
00005  * reserved.
00006  *
00007  * Redistribution and use in source and binary forms, with or without
00008  * modification, are permitted provided that the following conditions
00009  * are met:
00010  *
00011  * 1. Redistributions of source code must retain the above copyright
00012  *    notice, this list of conditions and the following disclaimer.
00013  *
00014  * 2. Redistributions in binary form must reproduce the above copyright
00015  *    notice, this list of conditions and the following disclaimer in
00016  *    the documentation and/or other materials provided with the
00017  *    distribution.
00018  *
00019  * 3. The end-user documentation included with the redistribution,
00020  *    if any, must include the following acknowledgment:
00021  *       "This product includes software developed by the
00022  *        Apache Software Foundation (http://www.apache.org/)."
00023  *    Alternately, this acknowledgment may appear in the software itself,
00024  *    if and wherever such third-party acknowledgments normally appear.
00025  *
00026  * 4. The names "Xerces" and "Apache Software Foundation" must
00027  *    not be used to endorse or promote products derived from this
00028  *    software without prior written permission. For written
00029  *    permission, please contact apache\@apache.org.
00030  *
00031  * 5. Products derived from this software may not be called "Apache",
00032  *    nor may "Apache" appear in their name, without prior written
00033  *    permission of the Apache Software Foundation.
00034  *
00035  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
00036  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00037  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00038  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
00039  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00040  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00041  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
00042  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00043  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00044  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
00045  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00046  * SUCH DAMAGE.
00047  * ====================================================================
00048  *
00049  * This software consists of voluntary contributions made by many
00050  * individuals on behalf of the Apache Software Foundation, and was
00051  * originally based on software copyright (c) 1999, International
00052  * Business Machines, Inc., http://www.ibm.com .  For more information
00053  * on the Apache Software Foundation, please see
00054  * <http://www.apache.org/>.
00055  */
00056 
00057 /*
00058  * $Log: SAX2XMLReader.hpp,v $
00059  * Revision 1.10  2003/03/07 18:10:30  tng
00060  * Return a reference instead of void for operator=
00061  *
00062  * Revision 1.9  2003/01/09 19:07:27  tng
00063  * [Bug 15802] Add "const" qualifier to getURIText.
00064  *
00065  * Revision 1.8  2002/12/23 15:23:18  knoaman
00066  * Added a public api to various parsers to return the src offset within the input
00067  * source.
00068  *
00069  * Revision 1.7  2002/11/04 14:55:45  tng
00070  * C++ Namespace Support.
00071  *
00072  * Revision 1.6  2002/07/11 18:29:09  knoaman
00073  * Grammar caching/preparsing - initial implementation.
00074  *
00075  * Revision 1.5  2002/07/04 15:35:44  tng
00076  * API Documentation typo fix.
00077  *
00078  * Revision 1.4  2002/06/27 18:46:53  tng
00079  * API Documentation Update.
00080  *
00081  * Revision 1.3  2002/06/17 15:39:49  tng
00082  * To be consistent, SAX2 is updated with:
00083  * 1. the progressive parse methods should use the fReuseGrammar flag set from setFeature instead of using parameter
00084  * 2. add feature "http://apache.org/xml/features/continue-after-fatal-error", and users should use setFeature instead of setExitOnFirstFatalError
00085  * 3. add feature "http://apache.org/xml/features/validation-error-as-fatal", and users should use setFeature instead of setValidationConstraintFatal
00086  *
00087  * Revision 1.2  2002/05/30 16:22:53  tng
00088  * Add feature to optionally ignore external DTD.
00089  *
00090  * Revision 1.1.1.1  2002/02/01 22:22:09  peiyongz
00091  * sane_include
00092  *
00093  * Revision 1.18  2002/01/28 18:45:40  knoaman
00094  * Update documentation for SAX2 feature 'namespace-prefixes'.
00095  *
00096  * Revision 1.17  2002/01/28 17:08:33  knoaman
00097  * SAX2-ext's DeclHandler support.
00098  *
00099  * Revision 1.16  2002/01/18 16:31:26  tng
00100  * Break program.xml which takes too long to load, into program-sax.xml, program-sax2.xml, program-dom.xml, program-idom.xml.
00101  *
00102  * Revision 1.15  2002/01/02 15:36:54  tng
00103  * Some documentation update.
00104  *
00105  * Revision 1.14  2001/11/20 18:51:44  tng
00106  * Schema: schemaLocation and noNamespaceSchemaLocation to be specified outside the instance document.  New methods setExternalSchemaLocation and setExternalNoNamespaceSchemaLocation are added (for SAX2, two new properties are added).
00107  *
00108  * Revision 1.13  2001/11/14 14:15:59  tng
00109  * Update SAX2 feature documentation.
00110  *
00111  * Revision 1.12  2001/09/12 13:03:43  tng
00112  * [Bug 3155] SAX2 does not offer progressive parse.
00113  *
00114  * Revision 1.11  2001/08/01 19:11:02  tng
00115  * Add full schema constraint checking flag to the samples and the parser.
00116  *
00117  * Revision 1.10  2001/06/27 17:40:16  knoaman
00118  * Fix for bug #2353.
00119  *
00120  * Revision 1.9  2001/06/19 16:44:31  tng
00121  * Add installAdvDocHandler to SAX2XMLReader as the code is there already.
00122  *
00123  * Revision 1.8  2001/06/04 21:03:07  jberry
00124  * Add pure virtual getErrorCount to SAX2XMLReader interface.
00125  *
00126  * Revision 1.7  2001/05/11 13:26:25  tng
00127  * Copyright update.
00128  *
00129  * Revision 1.6  2001/02/15 15:56:31  tng
00130  * Schema: Add setSchemaValidation and getSchemaValidation for DOMParser and SAXParser.
00131  * Add feature "http://apache.org/xml/features/validation/schema" for SAX2XMLReader.
00132  * New data field  fSchemaValidation in XMLScanner as the flag.
00133  *
00134  * Revision 1.5  2001/01/12 21:22:00  tng
00135  * Documentation Enhancement: Add list of SAX2 feature strings that are supported.
00136  *
00137  * Revision 1.4  2000/12/22 15:17:04  tng
00138  * SAX2-ext's LexicalHandler support added by David Bertoni.
00139  *
00140  * Revision 1.3  2000/08/09 22:19:29  jpolast
00141  * many conformance & stability changes:
00142  *   - ContentHandler::resetDocument() removed
00143  *   - attrs param of ContentHandler::startDocument() made const
00144  *   - SAXExceptions thrown now have msgs
00145  *   - removed duplicate function signatures that had 'const'
00146  *       [ eg: getContentHander() ]
00147  *   - changed getFeature and getProperty to apply to const objs
00148  *   - setProperty now takes a void* instead of const void*
00149  *   - SAX2XMLReaderImpl does not inherit from SAXParser anymore
00150  *   - Reuse Validator (http://apache.org/xml/features/reuse-validator) implemented
00151  *   - Features & Properties now read-only during parse
00152  *
00153  * Revision 1.2  2000/08/07 18:21:27  jpolast
00154  * change  module to 
00155  *
00156  * Revision 1.1  2000/08/02 18:02:35  jpolast
00157  * initial checkin of sax2 implementation
00158  * submitted by Simon Fell (simon@fell.com)
00159  * and Joe Polastre (jpolast@apache.org)
00160  *
00161  *
00162  */
00163 
00164 #ifndef SAX2XMLReader_HPP
00165 #define SAX2XMLReader_HPP
00166 
00167 #include <xercesc/util/XercesDefs.hpp>
00168 #include <xercesc/util/XMLUniDefs.hpp>
00169 #include <xercesc/framework/XMLValidator.hpp>
00170 #include <xercesc/framework/XMLPScanToken.hpp>
00171 
00172 XERCES_CPP_NAMESPACE_BEGIN
00173 
00174 class ContentHandler ;
00175 class DTDHandler;
00176 class EntityResolver;
00177 class ErrorHandler;
00178 class InputSource;
00179 class LexicalHandler;
00180 class DeclHandler;
00181 class XMLDocumentHandler;
00182 class Grammar;
00183 
00184 class  SAX2XMLReader
00185 {
00186 public:
00187     // -----------------------------------------------------------------------
00188     //  Class types
00189     // -----------------------------------------------------------------------
00192 
00200     enum ValSchemes
00201     {
00202         Val_Never
00203         , Val_Always
00204         , Val_Auto
00205     };
00207 
00208 
00209     // -----------------------------------------------------------------------
00210     //  Constructors and Destructor
00211     // -----------------------------------------------------------------------
00215     SAX2XMLReader()
00216     {
00217     }
00219     virtual ~SAX2XMLReader()
00220     {
00221     }
00223 
00224     //-----------------------------------------------------------------------
00225     // The XMLReader interface
00226     //-----------------------------------------------------------------------
00229 
00235     virtual ContentHandler* getContentHandler() const = 0 ;
00236 
00242     virtual DTDHandler* getDTDHandler() const = 0;
00243 
00249     virtual EntityResolver* getEntityResolver() const = 0 ;
00250 
00256     virtual ErrorHandler* getErrorHandler() const = 0 ;
00257 
00265     virtual bool getFeature(const XMLCh* const name) const = 0;
00266 
00286     virtual void* getProperty(const XMLCh* const name) const = 0 ;
00287 
00304     virtual void setContentHandler(ContentHandler* const handler) = 0;
00305 
00321     virtual void setDTDHandler(DTDHandler* const handler) = 0;
00322 
00339     virtual void setEntityResolver(EntityResolver* const resolver) = 0;
00340 
00358     virtual void setErrorHandler(ErrorHandler* const handler) = 0;
00359 
00383     virtual void setFeature(const XMLCh* const name, const bool value) = 0;
00384 
00408     virtual void setProperty(const XMLCh* const name, void* value) = 0 ;
00409 
00435     virtual void parse
00436     (
00437         const   InputSource&    source
00438     ) = 0;
00439 
00459     virtual void parse
00460     (
00461         const   XMLCh* const    systemId
00462     ) = 0;
00463 
00483     virtual void parse
00484     (
00485         const   char* const     systemId
00486     ) = 0;
00487     
00489 
00490     // -----------------------------------------------------------------------
00491     //  SAX 2.0-ext
00492     // -----------------------------------------------------------------------
00500     virtual DeclHandler* getDeclarationHandler() const = 0 ;
00501 
00507     virtual LexicalHandler* getLexicalHandler() const = 0 ;
00508 
00525     virtual void setDeclarationHandler(DeclHandler* const handler) = 0;
00526 
00543     virtual void setLexicalHandler(LexicalHandler* const handler) = 0;
00544 
00546 
00547     // -----------------------------------------------------------------------
00548     //  Getter Methods
00549     // -----------------------------------------------------------------------
00562     virtual XMLValidator* getValidator() const = 0;
00563 
00574     virtual int getErrorCount() const = 0 ;
00575 
00589     virtual bool getExitOnFirstFatalError() const = 0;
00590 
00605     virtual bool getValidationConstraintFatal() const = 0;
00606 
00613     virtual Grammar* getGrammar(const XMLCh* const nameSpaceKey) = 0;
00614 
00620     virtual Grammar* getRootGrammar() = 0;
00621 
00628     virtual const XMLCh* getURIText(unsigned int uriId) const = 0;
00629 
00635     virtual unsigned int getSrcOffset() const = 0;
00636 
00638 
00639     // -----------------------------------------------------------------------
00640     //  Setter Methods
00641     // -----------------------------------------------------------------------
00653     virtual void setValidator(XMLValidator* valueToAdopt) = 0;
00654 
00676     virtual void setExitOnFirstFatalError(const bool newState) = 0;
00677 
00703     virtual void setValidationConstraintFatal(const bool newState) = 0;
00705 
00706 
00707     // -----------------------------------------------------------------------
00708     //  Progressive scan methods
00709     // -----------------------------------------------------------------------
00710 
00713 
00741     virtual bool parseFirst
00742     (
00743         const   XMLCh* const    systemId
00744         ,       XMLPScanToken&  toFill
00745     ) = 0;
00746 
00774     virtual bool parseFirst
00775     (
00776         const   char* const     systemId
00777         ,       XMLPScanToken&  toFill
00778     ) = 0;
00779 
00807     virtual bool parseFirst
00808     (
00809         const   InputSource&    source
00810         ,       XMLPScanToken&  toFill
00811     ) = 0;
00812 
00837     virtual bool parseNext(XMLPScanToken& token) = 0;
00838 
00860     virtual void parseReset(XMLPScanToken& token) = 0;
00861 
00863 
00864     // -----------------------------------------------------------------------
00865     //  Grammar preparsing interface
00866     // -----------------------------------------------------------------------
00867 
00897     virtual Grammar* loadGrammar(const InputSource& source,
00898                                  const short grammarType,
00899                                  const bool toCache = false) = 0;
00900 
00926     virtual Grammar* loadGrammar(const XMLCh* const systemId,
00927                                  const short grammarType,
00928                                  const bool toCache = false) = 0;
00929 
00954     virtual Grammar* loadGrammar(const char* const systemId,
00955                                  const short grammarType,
00956                                  const bool toCache = false) = 0;
00957 
00961     virtual void resetCachedGrammarPool() = 0;
00962 
00964 
00965 
00966     // -----------------------------------------------------------------------
00967     //  Advanced document handler list maintenance methods
00968     // -----------------------------------------------------------------------
00969 
00985     virtual void installAdvDocHandler(XMLDocumentHandler* const toInstall) = 0;
00986 
00996     virtual bool removeAdvDocHandler(XMLDocumentHandler* const toRemove) = 0;
00998 
00999 private :
01000     /* The copy constructor, you cannot call this directly */
01001     SAX2XMLReader(const SAX2XMLReader&);
01002 
01003     /* The assignment operator, you cannot call this directly */
01004     SAX2XMLReader& operator=(const SAX2XMLReader&);
01005 
01006 };
01007 
01008 XERCES_CPP_NAMESPACE_END
01009 
01010 #endif


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