[2674] | 1 | /* |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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| 3 | * contributor license agreements. See the NOTICE file distributed with |
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| 4 | * this work for additional information regarding copyright ownership. |
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| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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| 6 | * (the "License"); you may not use this file except in compliance with |
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| 7 | * the License. You may obtain a copy of the License at |
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| 8 | * |
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| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 10 | * |
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| 11 | * Unless required by applicable law or agreed to in writing, software |
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| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 14 | * See the License for the specific language governing permissions and |
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| 15 | * limitations under the License. |
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| 16 | */ |
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| 17 | |
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| 18 | /* |
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| 19 | * $Id: SAX2XMLFilterImpl.hpp 569031 2007-08-23 15:05:28Z amassari $ |
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| 20 | */ |
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| 21 | |
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| 22 | #if !defined(SAX2XMLFilterImpl_HPP) |
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| 23 | #define SAX2XMLFilterImpl_HPP |
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| 24 | |
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| 25 | #include <xercesc/sax2/SAX2XMLFilter.hpp> |
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| 26 | #include <xercesc/sax/EntityResolver.hpp> |
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| 27 | #include <xercesc/sax/DTDHandler.hpp> |
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| 28 | #include <xercesc/sax2/ContentHandler.hpp> |
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| 29 | #include <xercesc/sax/ErrorHandler.hpp> |
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| 30 | |
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| 31 | XERCES_CPP_NAMESPACE_BEGIN |
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| 32 | |
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| 33 | /** |
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| 34 | * This class implements the SAX2 'XMLFilterImpl' interface and should be |
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| 35 | * used by applications as the base class for their SAX2 filters. |
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| 36 | * This implementation simply forwards every call to the parent object. |
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| 37 | * |
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| 38 | */ |
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| 39 | |
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| 40 | class PARSERS_EXPORT SAX2XMLFilterImpl : |
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| 41 | public SAX2XMLFilter |
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| 42 | , public EntityResolver |
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| 43 | , public DTDHandler |
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| 44 | , public ContentHandler |
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| 45 | , public ErrorHandler |
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| 46 | { |
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| 47 | public : |
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| 48 | // ----------------------------------------------------------------------- |
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| 49 | // Constructors and Destructor |
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| 50 | // ----------------------------------------------------------------------- |
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| 51 | /** @name Constructors and Destructor */ |
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| 52 | //@{ |
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| 53 | /** The default constructor */ |
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| 54 | SAX2XMLFilterImpl(SAX2XMLReader* parent); |
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| 55 | |
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| 56 | /** The destructor */ |
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| 57 | ~SAX2XMLFilterImpl() ; |
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| 58 | //@} |
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| 59 | |
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| 60 | //----------------------------------------------------------------------- |
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| 61 | // Implementation of SAX2XMLReader Interface |
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| 62 | //----------------------------------------------------------------------- |
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| 63 | //----------------------------------------------------------------------- |
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| 64 | // The XMLReader interface |
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| 65 | //----------------------------------------------------------------------- |
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| 66 | /** @name Implementation of SAX 2.0 XMLReader interface's. */ |
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| 67 | //@{ |
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| 68 | |
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| 69 | /** |
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| 70 | * This method returns the installed content handler. |
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| 71 | * |
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| 72 | * @return A pointer to the installed content handler object. |
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| 73 | */ |
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| 74 | virtual ContentHandler* getContentHandler() const ; |
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| 75 | |
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| 76 | /** |
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| 77 | * This method returns the installed DTD handler. |
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| 78 | * |
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| 79 | * @return A pointer to the installed DTD handler object. |
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| 80 | */ |
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| 81 | virtual DTDHandler* getDTDHandler() const ; |
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| 82 | |
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| 83 | /** |
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| 84 | * This method returns the installed entity resolver. |
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| 85 | * |
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| 86 | * @return A pointer to the installed entity resolver object. |
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| 87 | */ |
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| 88 | virtual EntityResolver* getEntityResolver() const ; |
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| 89 | |
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| 90 | /** |
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| 91 | * This method returns the installed error handler. |
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| 92 | * |
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| 93 | * @return A pointer to the installed error handler object. |
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| 94 | */ |
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| 95 | virtual ErrorHandler* getErrorHandler() const ; |
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| 96 | |
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| 97 | /** |
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| 98 | * Query the current state of any feature in a SAX2 XMLReader. |
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| 99 | * |
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| 100 | * @param name The unique identifier (URI) of the feature being set. |
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| 101 | * @return The current state of the feature. |
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| 102 | * @exception SAXNotRecognizedException If the requested feature is not known. |
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| 103 | */ |
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| 104 | virtual bool getFeature(const XMLCh* const name) const ; |
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| 105 | |
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| 106 | /** |
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| 107 | * Query the current value of a property in a SAX2 XMLReader. |
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| 108 | * |
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| 109 | * The parser owns the returned pointer. The memory allocated for |
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| 110 | * the returned pointer will be destroyed when the parser is deleted. |
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| 111 | * |
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| 112 | * To ensure assessiblity of the returned information after the parser |
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| 113 | * is deleted, callers need to copy and store the returned information |
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| 114 | * somewhere else; otherwise you may get unexpected result. Since the returned |
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| 115 | * pointer is a generic void pointer, see |
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| 116 | * http://xerces.apache.org/xerces-c/program-sax2.html#SAX2Properties to learn |
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| 117 | * exactly what type of property value each property returns for replication. |
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| 118 | * |
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| 119 | * @param name The unique identifier (URI) of the property being set. |
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| 120 | * @return The current value of the property. The pointer spans the same |
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| 121 | * life-time as the parser. A null pointer is returned if nothing |
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| 122 | * was specified externally. |
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| 123 | * @exception SAXNotRecognizedException If the requested property is not known. |
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| 124 | */ |
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| 125 | virtual void* getProperty(const XMLCh* const name) const ; |
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| 126 | |
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| 127 | /** |
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| 128 | * Allow an application to register a document event handler. |
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| 129 | * |
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| 130 | * If the application does not register a document handler, all |
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| 131 | * document events reported by the SAX parser will be silently |
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| 132 | * ignored (this is the default behaviour implemented by |
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| 133 | * HandlerBase). |
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| 134 | * |
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| 135 | * Applications may register a new or different handler in the |
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| 136 | * middle of a parse, and the SAX parser must begin using the new |
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| 137 | * handler immediately. |
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| 138 | * |
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| 139 | * @param handler The document handler. |
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| 140 | * @see DocumentHandler#DocumentHandler |
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| 141 | * @see HandlerBase#HandlerBase |
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| 142 | */ |
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| 143 | virtual void setContentHandler(ContentHandler* const handler) ; |
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| 144 | |
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| 145 | /** |
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| 146 | * Allow an application to register a DTD event handler. |
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| 147 | * |
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| 148 | * If the application does not register a DTD handler, all DTD |
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| 149 | * events reported by the SAX parser will be silently ignored (this |
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| 150 | * is the default behaviour implemented by HandlerBase). |
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| 151 | * |
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| 152 | * Applications may register a new or different handler in the middle |
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| 153 | * of a parse, and the SAX parser must begin using the new handler |
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| 154 | * immediately. |
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| 155 | * |
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| 156 | * @param handler The DTD handler. |
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| 157 | * @see DTDHandler#DTDHandler |
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| 158 | * @see HandlerBase#HandlerBase |
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| 159 | */ |
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| 160 | virtual void setDTDHandler(DTDHandler* const handler) ; |
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| 161 | |
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| 162 | /** |
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| 163 | * Allow an application to register a custom entity resolver. |
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| 164 | * |
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| 165 | * If the application does not register an entity resolver, the |
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| 166 | * SAX parser will resolve system identifiers and open connections |
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| 167 | * to entities itself (this is the default behaviour implemented in |
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| 168 | * DefaultHandler). |
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| 169 | * |
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| 170 | * Applications may register a new or different entity resolver |
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| 171 | * in the middle of a parse, and the SAX parser must begin using |
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| 172 | * the new resolver immediately. |
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| 173 | * |
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| 174 | * @param resolver The object for resolving entities. |
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| 175 | * @see EntityResolver#EntityResolver |
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| 176 | * @see DefaultHandler#DefaultHandler |
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| 177 | */ |
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| 178 | virtual void setEntityResolver(EntityResolver* const resolver) ; |
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| 179 | |
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| 180 | /** |
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| 181 | * Allow an application to register an error event handler. |
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| 182 | * |
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| 183 | * If the application does not register an error event handler, |
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| 184 | * all error events reported by the SAX parser will be silently |
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| 185 | * ignored, except for fatalError, which will throw a SAXException |
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| 186 | * (this is the default behaviour implemented by HandlerBase). |
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| 187 | * |
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| 188 | * Applications may register a new or different handler in the |
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| 189 | * middle of a parse, and the SAX parser must begin using the new |
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| 190 | * handler immediately. |
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| 191 | * |
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| 192 | * @param handler The error handler. |
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| 193 | * @see ErrorHandler#ErrorHandler |
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| 194 | * @see SAXException#SAXException |
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| 195 | * @see HandlerBase#HandlerBase |
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| 196 | */ |
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| 197 | virtual void setErrorHandler(ErrorHandler* const handler) ; |
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| 198 | |
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| 199 | /** |
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| 200 | * Set the state of any feature in a SAX2 XMLReader. |
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| 201 | * Supported features in SAX2 for xerces-c are: |
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| 202 | * <br>(See http://xerces.apache.org/xerces-c/program-sax2.html#SAX2Features for detail description). |
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| 203 | * |
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| 204 | * <br>http://xml.org/sax/features/validation (default: true) |
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| 205 | * <br>http://xml.org/sax/features/namespaces (default: true) |
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| 206 | * <br>http://xml.org/sax/features/namespace-prefixes (default: false) |
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| 207 | * <br>http://apache.org/xml/features/validation/dynamic (default: false) |
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| 208 | * <br>http://apache.org/xml/features/validation/reuse-grammar (default: false) |
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| 209 | * <br>http://apache.org/xml/features/validation/schema (default: true) |
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| 210 | * <br>http://apache.org/xml/features/validation/schema-full-checking (default: false) |
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| 211 | * <br>http://apache.org/xml/features/nonvalidating/load-external-dtd (default: true) |
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| 212 | * <br>http://apache.org/xml/features/continue-after-fatal-error (default: false) |
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| 213 | * <br>http://apache.org/xml/features/validation-error-as-fatal (default: false) |
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| 214 | * <br>http://apache.org/xml/features/validation/reuse-validator (Deprecated) (default: false) |
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| 215 | * |
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| 216 | * @param name The unique identifier (URI) of the feature. |
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| 217 | * @param value The requested state of the feature (true or false). |
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| 218 | * @exception SAXNotRecognizedException If the requested feature is not known. |
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| 219 | * @exception SAXNotSupportedException Feature modification is not supported during parse |
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| 220 | * |
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| 221 | */ |
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| 222 | virtual void setFeature(const XMLCh* const name, const bool value) ; |
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| 223 | |
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| 224 | /** |
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| 225 | * Set the value of any property in a SAX2 XMLReader. |
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| 226 | * Supported properties in SAX2 for xerces-c are: |
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| 227 | * <br>(See http://xerces.apache.org/xerces-c/program-sax2.html#SAX2Properties for detail description). |
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| 228 | * |
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| 229 | * <br>http://apache.org/xml/properties/schema/external-schemaLocation |
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| 230 | * <br>http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation. |
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| 231 | * |
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| 232 | * It takes a void pointer as the property value. Application is required to initialize this void |
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| 233 | * pointer to a correct type. See http://xerces.apache.org/xerces-c/program-sax2.html#SAX2Properties |
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| 234 | * to learn exactly what type of property value each property expects for processing. |
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| 235 | * Passing a void pointer that was initialized with a wrong type will lead to unexpected result. |
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| 236 | * If the same property is set more than once, the last one takes effect. |
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| 237 | * |
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| 238 | * @param name The unique identifier (URI) of the property being set. |
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| 239 | * @param value The requested value for the property. See |
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| 240 | * http://xerces.apache.org/xerces-c/program-sax2.html#SAX2Properties to learn |
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| 241 | * exactly what type of property value each property expects for processing. |
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| 242 | * Passing a void pointer that was initialized with a wrong type will lead |
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| 243 | * to unexpected result. |
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| 244 | * @exception SAXNotRecognizedException If the requested property is not known. |
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| 245 | * @exception SAXNotSupportedException Property modification is not supported during parse |
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| 246 | */ |
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| 247 | virtual void setProperty(const XMLCh* const name, void* value) ; |
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| 248 | |
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| 249 | /** |
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| 250 | * Parse an XML document. |
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| 251 | * |
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| 252 | * The application can use this method to instruct the SAX parser |
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| 253 | * to begin parsing an XML document from any valid input |
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| 254 | * source (a character stream, a byte stream, or a URI). |
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| 255 | * |
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| 256 | * Applications may not invoke this method while a parse is in |
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| 257 | * progress (they should create a new Parser instead for each |
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| 258 | * additional XML document). Once a parse is complete, an |
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| 259 | * application may reuse the same Parser object, possibly with a |
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| 260 | * different input source. |
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| 261 | * |
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| 262 | * @param source The input source for the top-level of the |
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| 263 | * XML document. |
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| 264 | * @exception SAXException Any SAX exception, possibly |
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| 265 | * wrapping another exception. |
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| 266 | * @exception XMLException An exception from the parser or client |
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| 267 | * handler code. |
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| 268 | * @see InputSource#InputSource |
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| 269 | * @see #setEntityResolver |
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| 270 | * @see #setDTDHandler |
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| 271 | * @see #setDocumentHandler |
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| 272 | * @see #setErrorHandler |
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| 273 | */ |
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| 274 | virtual void parse |
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| 275 | ( |
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| 276 | const InputSource& source |
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| 277 | ) ; |
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| 278 | |
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| 279 | /** |
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| 280 | * Parse an XML document from a system identifier (URI). |
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| 281 | * |
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| 282 | * This method is a shortcut for the common case of reading a |
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| 283 | * document from a system identifier. It is the exact equivalent |
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| 284 | * of the following: |
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| 285 | * |
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| 286 | * parse(new URLInputSource(systemId)); |
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| 287 | * |
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| 288 | * If the system identifier is a URL, it must be fully resolved |
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| 289 | * by the application before it is passed to the parser. |
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| 290 | * |
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| 291 | * @param systemId The system identifier (URI). |
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| 292 | * @exception SAXException Any SAX exception, possibly |
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| 293 | * wrapping another exception. |
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| 294 | * @exception XMLException An exception from the parser or client |
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| 295 | * handler code. |
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| 296 | * @see #parse(InputSource) |
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| 297 | */ |
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| 298 | virtual void parse |
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| 299 | ( |
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| 300 | const XMLCh* const systemId |
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| 301 | ) ; |
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| 302 | |
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| 303 | /** |
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| 304 | * Parse an XML document from a system identifier (URI). |
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| 305 | * |
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| 306 | * This method is a shortcut for the common case of reading a |
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| 307 | * document from a system identifier. It is the exact equivalent |
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| 308 | * of the following: |
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| 309 | * |
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| 310 | * parse(new URLInputSource(systemId)); |
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| 311 | * |
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| 312 | * If the system identifier is a URL, it must be fully resolved |
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| 313 | * by the application before it is passed to the parser. |
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| 314 | * |
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| 315 | * @param systemId The system identifier (URI). |
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| 316 | * @exception SAXException Any SAX exception, possibly |
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| 317 | * wrapping another exception. |
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| 318 | * @exception XMLException An exception from the parser or client |
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| 319 | * handler code. |
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| 320 | * @see #parse(InputSource) |
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| 321 | */ |
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| 322 | virtual void parse |
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| 323 | ( |
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| 324 | const char* const systemId |
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| 325 | ) ; |
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| 326 | |
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| 327 | //@} |
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| 328 | |
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| 329 | // ----------------------------------------------------------------------- |
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| 330 | // SAX 2.0-ext |
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| 331 | // ----------------------------------------------------------------------- |
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| 332 | /** @name SAX 2.0-ext */ |
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| 333 | //@{ |
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| 334 | /** |
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| 335 | * This method returns the installed declaration handler. |
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| 336 | * |
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| 337 | * @return A pointer to the installed declaration handler object. |
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| 338 | */ |
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| 339 | virtual DeclHandler* getDeclarationHandler() const ; |
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| 340 | |
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| 341 | /** |
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| 342 | * This method returns the installed lexical handler. |
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| 343 | * |
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| 344 | * @return A pointer to the installed lexical handler object. |
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| 345 | */ |
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| 346 | virtual LexicalHandler* getLexicalHandler() const ; |
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| 347 | |
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| 348 | /** |
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| 349 | * Allow an application to register a declaration event handler. |
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| 350 | * |
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| 351 | * If the application does not register a declaration handler, |
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| 352 | * all events reported by the SAX parser will be silently |
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| 353 | * ignored. (this is the default behaviour implemented by DefaultHandler). |
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| 354 | * |
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| 355 | * Applications may register a new or different handler in the |
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| 356 | * middle of a parse, and the SAX parser must begin using the new |
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| 357 | * handler immediately. |
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| 358 | * |
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| 359 | * @param handler The DTD declaration handler. |
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| 360 | * @see DeclHandler#DeclHandler |
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| 361 | * @see SAXException#SAXException |
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| 362 | * @see DefaultHandler#DefaultHandler |
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| 363 | */ |
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| 364 | virtual void setDeclarationHandler(DeclHandler* const handler) ; |
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| 365 | |
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| 366 | /** |
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| 367 | * Allow an application to register a lexical event handler. |
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| 368 | * |
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| 369 | * If the application does not register a lexical handler, |
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| 370 | * all events reported by the SAX parser will be silently |
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| 371 | * ignored. (this is the default behaviour implemented by HandlerBase). |
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| 372 | * |
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| 373 | * Applications may register a new or different handler in the |
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| 374 | * middle of a parse, and the SAX parser must begin using the new |
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| 375 | * handler immediately. |
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| 376 | * |
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| 377 | * @param handler The error handler. |
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| 378 | * @see LexicalHandler#LexicalHandler |
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| 379 | * @see SAXException#SAXException |
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| 380 | * @see HandlerBase#HandlerBase |
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| 381 | */ |
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| 382 | virtual void setLexicalHandler(LexicalHandler* const handler) ; |
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| 383 | |
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| 384 | //@} |
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| 385 | |
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| 386 | // ----------------------------------------------------------------------- |
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| 387 | // Getter Methods |
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| 388 | // ----------------------------------------------------------------------- |
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| 389 | /** @name Getter Methods (Xerces-C specific) */ |
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| 390 | //@{ |
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| 391 | /** |
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| 392 | * This method is used to get the current validator. |
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| 393 | * |
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| 394 | * <b>SAX2XMLReader assumes responsibility for the validator. It will be |
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| 395 | * deleted when the XMLReader is destroyed.</b> |
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| 396 | * |
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| 397 | * @return A pointer to the validator. An application should not deleted |
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| 398 | * the object returned. |
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| 399 | * |
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| 400 | */ |
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| 401 | virtual XMLValidator* getValidator() const ; |
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| 402 | |
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| 403 | /** Get error count from the last parse operation. |
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| 404 | * |
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| 405 | * This method returns the error count from the last parse |
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| 406 | * operation. Note that this count is actually stored in the |
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| 407 | * scanner, so this method simply returns what the |
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| 408 | * scanner reports. |
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| 409 | * |
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| 410 | * @return number of errors encountered during the latest |
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| 411 | * parse operation. |
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| 412 | */ |
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| 413 | virtual int getErrorCount() const ; |
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| 414 | |
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| 415 | /** |
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| 416 | * This method returns the state of the parser's |
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| 417 | * exit-on-First-Fatal-Error flag. |
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| 418 | * |
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| 419 | * <p>Or you can query the feature "http://apache.org/xml/features/continue-after-fatal-error" |
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| 420 | * which indicates the opposite state.</p> |
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| 421 | * |
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| 422 | * @return true, if the parser is currently configured to |
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| 423 | * exit on the first fatal error, false otherwise. |
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| 424 | * |
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| 425 | * @see #setExitOnFirstFatalError |
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| 426 | * @see #getFeature |
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| 427 | */ |
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| 428 | virtual bool getExitOnFirstFatalError() const ; |
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| 429 | |
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| 430 | /** |
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| 431 | * This method returns the state of the parser's |
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| 432 | * validation-constraint-fatal flag. |
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| 433 | * |
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| 434 | * <p>Or you can query the feature "http://apache.org/xml/features/validation-error-as-fatal" |
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| 435 | * which means the same thing. |
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| 436 | * |
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| 437 | * @return true, if the parser is currently configured to |
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| 438 | * set validation constraint errors as fatal, false |
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| 439 | * otherwise. |
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| 440 | * |
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| 441 | * @see #setValidationContraintFatal |
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| 442 | * @see #getFeature |
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| 443 | */ |
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| 444 | virtual bool getValidationConstraintFatal() const ; |
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| 445 | |
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| 446 | /** |
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| 447 | * Retrieve the grammar that is associated with the specified namespace key |
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| 448 | * |
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| 449 | * @param nameSpaceKey Namespace key |
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| 450 | * @return Grammar associated with the Namespace key. |
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| 451 | */ |
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| 452 | virtual Grammar* getGrammar(const XMLCh* const nameSpaceKey); |
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| 453 | |
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| 454 | /** |
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| 455 | * Retrieve the grammar where the root element is declared. |
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| 456 | * |
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| 457 | * @return Grammar where root element declared |
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| 458 | */ |
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| 459 | virtual Grammar* getRootGrammar(); |
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| 460 | |
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| 461 | /** |
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| 462 | * Returns the string corresponding to a URI id from the URI string pool. |
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| 463 | * |
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| 464 | * @param uriId id of the string in the URI string pool. |
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| 465 | * @return URI string corresponding to the URI id. |
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| 466 | */ |
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| 467 | virtual const XMLCh* getURIText(unsigned int uriId) const; |
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| 468 | |
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| 469 | /** |
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| 470 | * Returns the current src offset within the input source. |
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| 471 | * To be used only while parsing is in progress. |
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| 472 | * |
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| 473 | * @return offset within the input source |
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| 474 | */ |
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| 475 | virtual unsigned int getSrcOffset() const; |
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| 476 | |
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| 477 | //@} |
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| 478 | |
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| 479 | // ----------------------------------------------------------------------- |
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| 480 | // Setter Methods |
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| 481 | // ----------------------------------------------------------------------- |
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| 482 | /** @name Setter Methods (Xerces-C specific) */ |
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| 483 | //@{ |
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| 484 | /** |
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| 485 | * This method is used to set a validator. |
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| 486 | * |
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| 487 | * <b>SAX2XMLReader assumes responsibility for the validator. It will be |
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| 488 | * deleted when the XMLReader is destroyed.</b> |
---|
| 489 | * |
---|
| 490 | * @param valueToAdopt A pointer to the validator that the reader should use. |
---|
| 491 | * |
---|
| 492 | */ |
---|
| 493 | virtual void setValidator(XMLValidator* valueToAdopt) ; |
---|
| 494 | |
---|
| 495 | /** |
---|
| 496 | * This method allows users to set the parser's behaviour when it |
---|
| 497 | * encounters the first fatal error. If set to true, the parser |
---|
| 498 | * will exit at the first fatal error. If false, then it will |
---|
| 499 | * report the error and continue processing. |
---|
| 500 | * |
---|
| 501 | * <p>The default value is 'true' and the parser exits on the |
---|
| 502 | * first fatal error.</p> |
---|
| 503 | * |
---|
| 504 | * <p>Or you can set the feature "http://apache.org/xml/features/continue-after-fatal-error" |
---|
| 505 | * which has the opposite behaviour.</p> |
---|
| 506 | * |
---|
| 507 | * <p>If both the feature above and this function are used, the latter takes effect.</p> |
---|
| 508 | * |
---|
| 509 | * @param newState The value specifying whether the parser should |
---|
| 510 | * continue or exit when it encounters the first |
---|
| 511 | * fatal error. |
---|
| 512 | * |
---|
| 513 | * @see #getExitOnFirstFatalError |
---|
| 514 | * @see #setFeature |
---|
| 515 | */ |
---|
| 516 | virtual void setExitOnFirstFatalError(const bool newState) ; |
---|
| 517 | |
---|
| 518 | /** |
---|
| 519 | * This method allows users to set the parser's behaviour when it |
---|
| 520 | * encounters a validtion constraint error. If set to true, and the |
---|
| 521 | * the parser will treat validation error as fatal and will exit depends on the |
---|
| 522 | * state of "getExitOnFirstFatalError". If false, then it will |
---|
| 523 | * report the error and continue processing. |
---|
| 524 | * |
---|
| 525 | * Note: setting this true does not mean the validation error will be printed with |
---|
| 526 | * the word "Fatal Error". It is still printed as "Error", but the parser |
---|
| 527 | * will exit if "setExitOnFirstFatalError" is set to true. |
---|
| 528 | * |
---|
| 529 | * <p>The default value is 'false'.</p> |
---|
| 530 | * |
---|
| 531 | * <p>Or you can set the feature "http://apache.org/xml/features/validation-error-as-fatal" |
---|
| 532 | * which means the same thing.</p> |
---|
| 533 | * |
---|
| 534 | * <p>If both the feature above and this function are used, the latter takes effect.</p> |
---|
| 535 | * |
---|
| 536 | * @param newState If true, the parser will exit if "setExitOnFirstFatalError" |
---|
| 537 | * is set to true. |
---|
| 538 | * |
---|
| 539 | * @see #getValidationConstraintFatal |
---|
| 540 | * @see #setExitOnFirstFatalError |
---|
| 541 | * @see #setFeature |
---|
| 542 | */ |
---|
| 543 | virtual void setValidationConstraintFatal(const bool newState) ; |
---|
| 544 | //@} |
---|
| 545 | |
---|
| 546 | |
---|
| 547 | // ----------------------------------------------------------------------- |
---|
| 548 | // Progressive scan methods |
---|
| 549 | // ----------------------------------------------------------------------- |
---|
| 550 | |
---|
| 551 | /** @name Progressive scan methods */ |
---|
| 552 | //@{ |
---|
| 553 | |
---|
| 554 | /** Begin a progressive parse operation |
---|
| 555 | * |
---|
| 556 | * This method is used to start a progressive parse on a XML file. |
---|
| 557 | * To continue parsing, subsequent calls must be to the parseNext |
---|
| 558 | * method. |
---|
| 559 | * |
---|
| 560 | * It scans through the prolog and returns a token to be used on |
---|
| 561 | * subsequent scanNext() calls. If the return value is true, then the |
---|
| 562 | * token is legal and ready for further use. If it returns false, then |
---|
| 563 | * the scan of the prolog failed and the token is not going to work on |
---|
| 564 | * subsequent scanNext() calls. |
---|
| 565 | * |
---|
| 566 | * @param systemId A pointer to a Unicode string represting the path |
---|
| 567 | * to the XML file to be parsed. |
---|
| 568 | * @param toFill A token maintaing state information to maintain |
---|
| 569 | * internal consistency between invocation of 'parseNext' |
---|
| 570 | * calls. |
---|
| 571 | * |
---|
| 572 | * @return 'true', if successful in parsing the prolog. It indicates the |
---|
| 573 | * user can go ahead with parsing the rest of the file. It |
---|
| 574 | * returns 'false' to indicate that the parser could parse the |
---|
| 575 | * prolog (which means the token will not be valid.) |
---|
| 576 | * |
---|
| 577 | * @see #parseNext |
---|
| 578 | * @see #parseFirst(char*,...) |
---|
| 579 | * @see #parseFirst(InputSource&,...) |
---|
| 580 | */ |
---|
| 581 | virtual bool parseFirst |
---|
| 582 | ( |
---|
| 583 | const XMLCh* const systemId |
---|
| 584 | , XMLPScanToken& toFill |
---|
| 585 | ) ; |
---|
| 586 | |
---|
| 587 | /** Begin a progressive parse operation |
---|
| 588 | * |
---|
| 589 | * This method is used to start a progressive parse on a XML file. |
---|
| 590 | * To continue parsing, subsequent calls must be to the parseNext |
---|
| 591 | * method. |
---|
| 592 | * |
---|
| 593 | * It scans through the prolog and returns a token to be used on |
---|
| 594 | * subsequent scanNext() calls. If the return value is true, then the |
---|
| 595 | * token is legal and ready for further use. If it returns false, then |
---|
| 596 | * the scan of the prolog failed and the token is not going to work on |
---|
| 597 | * subsequent scanNext() calls. |
---|
| 598 | * |
---|
| 599 | * @param systemId A pointer to a regular native string represting |
---|
| 600 | * the path to the XML file to be parsed. |
---|
| 601 | * @param toFill A token maintaing state information to maintain |
---|
| 602 | * internal consIstency between invocation of 'parseNext' |
---|
| 603 | * calls. |
---|
| 604 | * |
---|
| 605 | * @return 'true', if successful in parsing the prolog. It indicates the |
---|
| 606 | * user can go ahead with parsing the rest of the file. It |
---|
| 607 | * returns 'false' to indicate that the parser could not parse |
---|
| 608 | * the prolog. |
---|
| 609 | * |
---|
| 610 | * @see #parseNext |
---|
| 611 | * @see #parseFirst(XMLCh*,...) |
---|
| 612 | * @see #parseFirst(InputSource&,...) |
---|
| 613 | */ |
---|
| 614 | virtual bool parseFirst |
---|
| 615 | ( |
---|
| 616 | const char* const systemId |
---|
| 617 | , XMLPScanToken& toFill |
---|
| 618 | ) ; |
---|
| 619 | |
---|
| 620 | /** Begin a progressive parse operation |
---|
| 621 | * |
---|
| 622 | * This method is used to start a progressive parse on a XML file. |
---|
| 623 | * To continue parsing, subsequent calls must be to the parseNext |
---|
| 624 | * method. |
---|
| 625 | * |
---|
| 626 | * It scans through the prolog and returns a token to be used on |
---|
| 627 | * subsequent scanNext() calls. If the return value is true, then the |
---|
| 628 | * token is legal and ready for further use. If it returns false, then |
---|
| 629 | * the scan of the prolog failed and the token is not going to work on |
---|
| 630 | * subsequent scanNext() calls. |
---|
| 631 | * |
---|
| 632 | * @param source A const reference to the InputSource object which |
---|
| 633 | * points to the XML file to be parsed. |
---|
| 634 | * @param toFill A token maintaing state information to maintain |
---|
| 635 | * internal consistency between invocation of 'parseNext' |
---|
| 636 | * calls. |
---|
| 637 | * |
---|
| 638 | * @return 'true', if successful in parsing the prolog. It indicates the |
---|
| 639 | * user can go ahead with parsing the rest of the file. It |
---|
| 640 | * returns 'false' to indicate that the parser could not parse |
---|
| 641 | * the prolog. |
---|
| 642 | * |
---|
| 643 | * @see #parseNext |
---|
| 644 | * @see #parseFirst(XMLCh*,...) |
---|
| 645 | * @see #parseFirst(char*,...) |
---|
| 646 | */ |
---|
| 647 | virtual bool parseFirst |
---|
| 648 | ( |
---|
| 649 | const InputSource& source |
---|
| 650 | , XMLPScanToken& toFill |
---|
| 651 | ) ; |
---|
| 652 | |
---|
| 653 | /** Continue a progressive parse operation |
---|
| 654 | * |
---|
| 655 | * This method is used to continue with progressive parsing of |
---|
| 656 | * XML files started by a call to 'parseFirst' method. |
---|
| 657 | * |
---|
| 658 | * It parses the XML file and stops as soon as it comes across |
---|
| 659 | * a XML token (as defined in the XML specification). Relevant |
---|
| 660 | * callback handlers are invoked as required by the SAX |
---|
| 661 | * specification. |
---|
| 662 | * |
---|
| 663 | * @param token A token maintaing state information to maintain |
---|
| 664 | * internal consistency between invocation of 'parseNext' |
---|
| 665 | * calls. |
---|
| 666 | * |
---|
| 667 | * @return 'true', if successful in parsing the next XML token. |
---|
| 668 | * It indicates the user can go ahead with parsing the rest |
---|
| 669 | * of the file. It returns 'false' to indicate that the parser |
---|
| 670 | * could not find next token as per the XML specification |
---|
| 671 | * production rule. |
---|
| 672 | * |
---|
| 673 | * @see #parseFirst(XMLCh*,...) |
---|
| 674 | * @see #parseFirst(char*,...) |
---|
| 675 | * @see #parseFirst(InputSource&,...) |
---|
| 676 | */ |
---|
| 677 | virtual bool parseNext(XMLPScanToken& token) ; |
---|
| 678 | |
---|
| 679 | /** Reset the parser after a progressive parse |
---|
| 680 | * |
---|
| 681 | * If a progressive parse loop exits before the end of the document |
---|
| 682 | * is reached, the parser has no way of knowing this. So it will leave |
---|
| 683 | * open any files or sockets or memory buffers that were in use at |
---|
| 684 | * the time that the parse loop exited. |
---|
| 685 | * |
---|
| 686 | * The next parse operation will cause these open files and such to |
---|
| 687 | * be closed, but the next parse operation might occur at some unknown |
---|
| 688 | * future point. To avoid this problem, you should reset the parser if |
---|
| 689 | * you exit the loop early. |
---|
| 690 | * |
---|
| 691 | * If you exited because of an error, then this cleanup will be done |
---|
| 692 | * for you. Its only when you exit the file prematurely of your own |
---|
| 693 | * accord, because you've found what you wanted in the file most |
---|
| 694 | * likely. |
---|
| 695 | * |
---|
| 696 | * @param token A token maintaing state information to maintain |
---|
| 697 | * internal consistency between invocation of 'parseNext' |
---|
| 698 | * calls. |
---|
| 699 | */ |
---|
| 700 | virtual void parseReset(XMLPScanToken& token) ; |
---|
| 701 | |
---|
| 702 | //@} |
---|
| 703 | |
---|
| 704 | // ----------------------------------------------------------------------- |
---|
| 705 | // Implementation of the grammar preparsing interface |
---|
| 706 | // ----------------------------------------------------------------------- |
---|
| 707 | |
---|
| 708 | /** @name Implementation of Grammar preparsing interface's. */ |
---|
| 709 | //@{ |
---|
| 710 | /** |
---|
| 711 | * Preparse schema grammar (XML Schema, DTD, etc.) via an input source |
---|
| 712 | * object. |
---|
| 713 | * |
---|
| 714 | * This method invokes the preparsing process on a schema grammar XML |
---|
| 715 | * file specified by the SAX InputSource parameter. If the 'toCache' flag |
---|
| 716 | * is enabled, the parser will cache the grammars for re-use. If a grammar |
---|
| 717 | * key is found in the pool, no caching of any grammar will take place. |
---|
| 718 | * |
---|
| 719 | * <p><b>"Experimental - subject to change"</b></p> |
---|
| 720 | * |
---|
| 721 | * @param source A const reference to the SAX InputSource object which |
---|
| 722 | * points to the schema grammar file to be preparsed. |
---|
| 723 | * @param grammarType The grammar type (Schema or DTD). |
---|
| 724 | * @param toCache If <code>true</code>, we cache the preparsed grammar, |
---|
| 725 | * otherwise, no chaching. Default is <code>false</code>. |
---|
| 726 | * @return The preparsed schema grammar object (SchemaGrammar or |
---|
| 727 | * DTDGrammar). That grammar object is owned by the parser. |
---|
| 728 | * |
---|
| 729 | * @exception SAXException Any SAX exception, possibly |
---|
| 730 | * wrapping another exception. |
---|
| 731 | * @exception XMLException An exception from the parser or client |
---|
| 732 | * handler code. |
---|
| 733 | * @exception DOMException A DOM exception as per DOM spec. |
---|
| 734 | * |
---|
| 735 | * @see InputSource#InputSource |
---|
| 736 | */ |
---|
| 737 | virtual Grammar* loadGrammar(const InputSource& source, |
---|
| 738 | const short grammarType, |
---|
| 739 | const bool toCache = false); |
---|
| 740 | |
---|
| 741 | /** |
---|
| 742 | * Preparse schema grammar (XML Schema, DTD, etc.) via a file path or URL |
---|
| 743 | * |
---|
| 744 | * This method invokes the preparsing process on a schema grammar XML |
---|
| 745 | * file specified by the file path parameter. If the 'toCache' flag |
---|
| 746 | * is enabled, the parser will cache the grammars for re-use. If a grammar |
---|
| 747 | * key is found in the pool, no caching of any grammar will take place. |
---|
| 748 | * |
---|
| 749 | * <p><b>"Experimental - subject to change"</b></p> |
---|
| 750 | * |
---|
| 751 | * @param systemId A const XMLCh pointer to the Unicode string which |
---|
| 752 | * contains the path to the XML grammar file to be |
---|
| 753 | * preparsed. |
---|
| 754 | * @param grammarType The grammar type (Schema or DTD). |
---|
| 755 | * @param toCache If <code>true</code>, we cache the preparsed grammar, |
---|
| 756 | * otherwise, no chaching. Default is <code>false</code>. |
---|
| 757 | * @return The preparsed schema grammar object (SchemaGrammar or |
---|
| 758 | * DTDGrammar). That grammar object is owned by the parser. |
---|
| 759 | * |
---|
| 760 | * @exception SAXException Any SAX exception, possibly |
---|
| 761 | * wrapping another exception. |
---|
| 762 | * @exception XMLException An exception from the parser or client |
---|
| 763 | * handler code. |
---|
| 764 | * @exception DOMException A DOM exception as per DOM spec. |
---|
| 765 | */ |
---|
| 766 | virtual Grammar* loadGrammar(const XMLCh* const systemId, |
---|
| 767 | const short grammarType, |
---|
| 768 | const bool toCache = false); |
---|
| 769 | |
---|
| 770 | /** |
---|
| 771 | * Preparse schema grammar (XML Schema, DTD, etc.) via a file path or URL |
---|
| 772 | * |
---|
| 773 | * This method invokes the preparsing process on a schema grammar XML |
---|
| 774 | * file specified by the file path parameter. If the 'toCache' flag |
---|
| 775 | * is enabled, the parser will cache the grammars for re-use. If a grammar |
---|
| 776 | * key is found in the pool, no caching of any grammar will take place. |
---|
| 777 | * |
---|
| 778 | * <p><b>"Experimental - subject to change"</b></p> |
---|
| 779 | * |
---|
| 780 | * @param systemId A const char pointer to a native string which contains |
---|
| 781 | * the path to the XML grammar file to be preparsed. |
---|
| 782 | * @param grammarType The grammar type (Schema or DTD). |
---|
| 783 | * @param toCache If <code>true</code>, we cache the preparsed grammar, |
---|
| 784 | * otherwise, no chaching. Default is <code>false</code>. |
---|
| 785 | * @return The preparsed schema grammar object (SchemaGrammar or |
---|
| 786 | * DTDGrammar). That grammar object is owned by the parser. |
---|
| 787 | * |
---|
| 788 | * @exception SAXException Any SAX exception, possibly |
---|
| 789 | * wrapping another exception. |
---|
| 790 | * @exception XMLException An exception from the parser or client |
---|
| 791 | * handler code. |
---|
| 792 | * @exception DOMException A DOM exception as per DOM spec. |
---|
| 793 | */ |
---|
| 794 | virtual Grammar* loadGrammar(const char* const systemId, |
---|
| 795 | const short grammarType, |
---|
| 796 | const bool toCache = false); |
---|
| 797 | |
---|
| 798 | /** |
---|
| 799 | * Clear the cached grammar pool |
---|
| 800 | */ |
---|
| 801 | virtual void resetCachedGrammarPool(); |
---|
| 802 | |
---|
| 803 | /** Set maximum input buffer size |
---|
| 804 | * |
---|
| 805 | * This method allows users to limit the size of buffers used in parsing |
---|
| 806 | * XML character data. The effect of setting this size is to limit the |
---|
| 807 | * size of a ContentHandler::characters() call. |
---|
| 808 | * |
---|
| 809 | * The parser's default input buffer size is 1 megabyte. |
---|
| 810 | * |
---|
| 811 | * @param bufferSize The maximum input buffer size |
---|
| 812 | */ |
---|
| 813 | void setInputBufferSize(const size_t bufferSize); |
---|
| 814 | |
---|
| 815 | //@} |
---|
| 816 | |
---|
| 817 | |
---|
| 818 | // ----------------------------------------------------------------------- |
---|
| 819 | // Advanced document handler list maintenance methods |
---|
| 820 | // ----------------------------------------------------------------------- |
---|
| 821 | |
---|
| 822 | /** @name Advanced document handler list maintenance methods */ |
---|
| 823 | //@{ |
---|
| 824 | /** |
---|
| 825 | * This method installs the specified 'advanced' document callback |
---|
| 826 | * handler, thereby allowing the user to customize the processing, |
---|
| 827 | * if they choose to do so. Any number of advanced callback handlers |
---|
| 828 | * maybe installed. |
---|
| 829 | * |
---|
| 830 | * <p>The methods in the advanced callback interface represent |
---|
| 831 | * Xerces-C extensions. There is no specification for this interface.</p> |
---|
| 832 | * |
---|
| 833 | * @param toInstall A pointer to the users advanced callback handler. |
---|
| 834 | * |
---|
| 835 | * @see #removeAdvDocHandler |
---|
| 836 | */ |
---|
| 837 | virtual void installAdvDocHandler(XMLDocumentHandler* const toInstall) ; |
---|
| 838 | |
---|
| 839 | /** |
---|
| 840 | * This method removes the 'advanced' document handler callback from |
---|
| 841 | * the underlying parser scanner. If no handler is installed, advanced |
---|
| 842 | * callbacks are not invoked by the scanner. |
---|
| 843 | * @param toRemove A pointer to the advanced callback handler which |
---|
| 844 | * should be removed. |
---|
| 845 | * |
---|
| 846 | * @see #installAdvDocHandler |
---|
| 847 | */ |
---|
| 848 | virtual bool removeAdvDocHandler(XMLDocumentHandler* const toRemove) ; |
---|
| 849 | //@} |
---|
| 850 | |
---|
| 851 | |
---|
| 852 | // ----------------------------------------------------------------------- |
---|
| 853 | // The XMLFilter interface |
---|
| 854 | // ----------------------------------------------------------------------- |
---|
| 855 | |
---|
| 856 | /** @name Implementation of SAX 2.0 XMLFilter interface's. */ |
---|
| 857 | //@{ |
---|
| 858 | /** |
---|
| 859 | * This method returns the parent XMLReader object. |
---|
| 860 | * |
---|
| 861 | * @return A pointer to the parent XMLReader object. |
---|
| 862 | */ |
---|
| 863 | virtual SAX2XMLReader* getParent() const; |
---|
| 864 | |
---|
| 865 | /** |
---|
| 866 | * Sets the parent XMLReader object; parse requests will be forwarded to this |
---|
| 867 | * object, and callback notifications coming from it will be postprocessed |
---|
| 868 | * |
---|
| 869 | * @param parent The new XMLReader parent. |
---|
| 870 | * @see SAX2XMLReader#SAX2XMLReader |
---|
| 871 | */ |
---|
| 872 | virtual void setParent(SAX2XMLReader* parent); |
---|
| 873 | //@} |
---|
| 874 | |
---|
| 875 | // ----------------------------------------------------------------------- |
---|
| 876 | // Implementation of the EntityResolver interface |
---|
| 877 | // ----------------------------------------------------------------------- |
---|
| 878 | /** @name The EntityResolver interface */ |
---|
| 879 | //@{ |
---|
| 880 | |
---|
| 881 | /** |
---|
| 882 | * Allow the application to resolve external entities. |
---|
| 883 | * |
---|
| 884 | * <p>The Parser will call this method before opening any external |
---|
| 885 | * entity except the top-level document entity (including the |
---|
| 886 | * external DTD subset, external entities referenced within the |
---|
| 887 | * DTD, and external entities referenced within the document |
---|
| 888 | * element): the application may request that the parser resolve |
---|
| 889 | * the entity itself, that it use an alternative URI, or that it |
---|
| 890 | * use an entirely different input source.</p> |
---|
| 891 | * |
---|
| 892 | * <p>Application writers can use this method to redirect external |
---|
| 893 | * system identifiers to secure and/or local URIs, to look up |
---|
| 894 | * public identifiers in a catalogue, or to read an entity from a |
---|
| 895 | * database or other input source (including, for example, a dialog |
---|
| 896 | * box).</p> |
---|
| 897 | * |
---|
| 898 | * <p>If the system identifier is a URL, the SAX parser must |
---|
| 899 | * resolve it fully before reporting it to the application.</p> |
---|
| 900 | * |
---|
| 901 | * @param publicId The public identifier of the external entity |
---|
| 902 | * being referenced, or null if none was supplied. |
---|
| 903 | * @param systemId The system identifier of the external entity |
---|
| 904 | * being referenced. |
---|
| 905 | * @return An InputSource object describing the new input source, |
---|
| 906 | * or null to request that the parser open a regular |
---|
| 907 | * URI connection to the system identifier. |
---|
| 908 | * The returned InputSource is owned by the parser which is |
---|
| 909 | * responsible to clean up the memory. |
---|
| 910 | * @exception SAXException Any SAX exception, possibly |
---|
| 911 | * wrapping another exception. |
---|
| 912 | * @exception IOException An IO exception, |
---|
| 913 | * possibly the result of creating a new InputStream |
---|
| 914 | * or Reader for the InputSource. |
---|
| 915 | * @see InputSource#InputSource |
---|
| 916 | */ |
---|
| 917 | virtual InputSource* resolveEntity |
---|
| 918 | ( |
---|
| 919 | const XMLCh* const publicId |
---|
| 920 | , const XMLCh* const systemId |
---|
| 921 | ); |
---|
| 922 | |
---|
| 923 | //@} |
---|
| 924 | |
---|
| 925 | // ----------------------------------------------------------------------- |
---|
| 926 | // Implementation of the DTDHandler interface |
---|
| 927 | // ----------------------------------------------------------------------- |
---|
| 928 | /** @name The DTD handler interface */ |
---|
| 929 | //@{ |
---|
| 930 | /** |
---|
| 931 | * Receive notification of a notation declaration event. |
---|
| 932 | * |
---|
| 933 | * <p>It is up to the application to record the notation for later |
---|
| 934 | * reference, if necessary.</p> |
---|
| 935 | * |
---|
| 936 | * <p>If a system identifier is present, and it is a URL, the SAX |
---|
| 937 | * parser must resolve it fully before passing it to the |
---|
| 938 | * application.</p> |
---|
| 939 | * |
---|
| 940 | * @param name The notation name. |
---|
| 941 | * @param publicId The notation's public identifier, or null if |
---|
| 942 | * none was given. |
---|
| 943 | * @param systemId The notation's system identifier, or null if |
---|
| 944 | * none was given. |
---|
| 945 | * @exception SAXException Any SAX exception, possibly |
---|
| 946 | * wrapping another exception. |
---|
| 947 | * @see #unparsedEntityDecl |
---|
| 948 | * @see AttributeList#AttributeList |
---|
| 949 | */ |
---|
| 950 | virtual void notationDecl |
---|
| 951 | ( |
---|
| 952 | const XMLCh* const name |
---|
| 953 | , const XMLCh* const publicId |
---|
| 954 | , const XMLCh* const systemId |
---|
| 955 | ); |
---|
| 956 | |
---|
| 957 | /** |
---|
| 958 | * Receive notification of an unparsed entity declaration event. |
---|
| 959 | * |
---|
| 960 | * <p>Note that the notation name corresponds to a notation |
---|
| 961 | * reported by the notationDecl() event. It is up to the |
---|
| 962 | * application to record the entity for later reference, if |
---|
| 963 | * necessary.</p> |
---|
| 964 | * |
---|
| 965 | * <p>If the system identifier is a URL, the parser must resolve it |
---|
| 966 | * fully before passing it to the application.</p> |
---|
| 967 | * |
---|
| 968 | * @exception SAXException Any SAX exception, possibly |
---|
| 969 | * wrapping another exception. |
---|
| 970 | * @param name The unparsed entity's name. |
---|
| 971 | * @param publicId The entity's public identifier, or null if none |
---|
| 972 | * was given. |
---|
| 973 | * @param systemId The entity's system identifier (it must always |
---|
| 974 | * have one). |
---|
| 975 | * @param notationName The name of the associated notation. |
---|
| 976 | * @see #notationDecl |
---|
| 977 | * @see AttributeList#AttributeList |
---|
| 978 | */ |
---|
| 979 | virtual void unparsedEntityDecl |
---|
| 980 | ( |
---|
| 981 | const XMLCh* const name |
---|
| 982 | , const XMLCh* const publicId |
---|
| 983 | , const XMLCh* const systemId |
---|
| 984 | , const XMLCh* const notationName |
---|
| 985 | ); |
---|
| 986 | |
---|
| 987 | /** |
---|
| 988 | * Reset the DocType object on its reuse |
---|
| 989 | * |
---|
| 990 | * <p>This method helps in reseting the DTD object implementational |
---|
| 991 | * defaults each time the DTD is begun.</p> |
---|
| 992 | * |
---|
| 993 | */ |
---|
| 994 | virtual void resetDocType(); |
---|
| 995 | |
---|
| 996 | //@} |
---|
| 997 | |
---|
| 998 | // ----------------------------------------------------------------------- |
---|
| 999 | // Implementation of the ContentHandler interface |
---|
| 1000 | // ----------------------------------------------------------------------- |
---|
| 1001 | /** @name The virtual document handler interface */ |
---|
| 1002 | |
---|
| 1003 | //@{ |
---|
| 1004 | /** |
---|
| 1005 | * Receive notification of character data. |
---|
| 1006 | * |
---|
| 1007 | * <p>The Parser will call this method to report each chunk of |
---|
| 1008 | * character data. SAX parsers may return all contiguous character |
---|
| 1009 | * data in a single chunk, or they may split it into several |
---|
| 1010 | * chunks; however, all of the characters in any single event |
---|
| 1011 | * must come from the same external entity, so that the Locator |
---|
| 1012 | * provides useful information.</p> |
---|
| 1013 | * |
---|
| 1014 | * <p>The application must not attempt to read from the array |
---|
| 1015 | * outside of the specified range.</p> |
---|
| 1016 | * |
---|
| 1017 | * <p>Note that some parsers will report whitespace using the |
---|
| 1018 | * ignorableWhitespace() method rather than this one (validating |
---|
| 1019 | * parsers must do so).</p> |
---|
| 1020 | * |
---|
| 1021 | * @param chars The characters from the XML document. |
---|
| 1022 | * @param length The number of characters to read from the array. |
---|
| 1023 | * @exception SAXException Any SAX exception, possibly |
---|
| 1024 | * wrapping another exception. |
---|
| 1025 | * @see #ignorableWhitespace |
---|
| 1026 | * @see Locator#Locator |
---|
| 1027 | */ |
---|
| 1028 | virtual void characters |
---|
| 1029 | ( |
---|
| 1030 | const XMLCh* const chars |
---|
| 1031 | , const unsigned int length |
---|
| 1032 | ); |
---|
| 1033 | |
---|
| 1034 | /** |
---|
| 1035 | * Receive notification of the end of a document. |
---|
| 1036 | * |
---|
| 1037 | * <p>The SAX parser will invoke this method only once, and it will |
---|
| 1038 | * be the last method invoked during the parse. The parser shall |
---|
| 1039 | * not invoke this method until it has either abandoned parsing |
---|
| 1040 | * (because of an unrecoverable error) or reached the end of |
---|
| 1041 | * input.</p> |
---|
| 1042 | * |
---|
| 1043 | * @exception SAXException Any SAX exception, possibly |
---|
| 1044 | * wrapping another exception. |
---|
| 1045 | */ |
---|
| 1046 | virtual void endDocument (); |
---|
| 1047 | |
---|
| 1048 | /** |
---|
| 1049 | * Receive notification of the end of an element. |
---|
| 1050 | * |
---|
| 1051 | * <p>The SAX parser will invoke this method at the end of every |
---|
| 1052 | * element in the XML document; there will be a corresponding |
---|
| 1053 | * startElement() event for every endElement() event (even when the |
---|
| 1054 | * element is empty).</p> |
---|
| 1055 | * |
---|
| 1056 | * @param uri The URI of the asscioated namespace for this element |
---|
| 1057 | * @param localname The local part of the element name |
---|
| 1058 | * @param qname The QName of this element |
---|
| 1059 | * @exception SAXException Any SAX exception, possibly |
---|
| 1060 | * wrapping another exception. |
---|
| 1061 | */ |
---|
| 1062 | virtual void endElement |
---|
| 1063 | ( |
---|
| 1064 | const XMLCh* const uri, |
---|
| 1065 | const XMLCh* const localname, |
---|
| 1066 | const XMLCh* const qname |
---|
| 1067 | ); |
---|
| 1068 | |
---|
| 1069 | /** |
---|
| 1070 | * Receive notification of ignorable whitespace in element content. |
---|
| 1071 | * |
---|
| 1072 | * <p>Validating Parsers must use this method to report each chunk |
---|
| 1073 | * of ignorable whitespace (see the W3C XML 1.0 recommendation, |
---|
| 1074 | * section 2.10): non-validating parsers may also use this method |
---|
| 1075 | * if they are capable of parsing and using content models.</p> |
---|
| 1076 | * |
---|
| 1077 | * <p>SAX parsers may return all contiguous whitespace in a single |
---|
| 1078 | * chunk, or they may split it into several chunks; however, all of |
---|
| 1079 | * the characters in any single event must come from the same |
---|
| 1080 | * external entity, so that the Locator provides useful |
---|
| 1081 | * information.</p> |
---|
| 1082 | * |
---|
| 1083 | * <p>The application must not attempt to read from the array |
---|
| 1084 | * outside of the specified range.</p> |
---|
| 1085 | * |
---|
| 1086 | * @param chars The characters from the XML document. |
---|
| 1087 | * @param length The number of characters to read from the array. |
---|
| 1088 | * @exception SAXException Any SAX exception, possibly |
---|
| 1089 | * wrapping another exception. |
---|
| 1090 | * @see #characters |
---|
| 1091 | */ |
---|
| 1092 | virtual void ignorableWhitespace |
---|
| 1093 | ( |
---|
| 1094 | const XMLCh* const chars |
---|
| 1095 | , const unsigned int length |
---|
| 1096 | ); |
---|
| 1097 | |
---|
| 1098 | /** |
---|
| 1099 | * Receive notification of a processing instruction. |
---|
| 1100 | * |
---|
| 1101 | * <p>The Parser will invoke this method once for each processing |
---|
| 1102 | * instruction found: note that processing instructions may occur |
---|
| 1103 | * before or after the main document element.</p> |
---|
| 1104 | * |
---|
| 1105 | * <p>A SAX parser should never report an XML declaration (XML 1.0, |
---|
| 1106 | * section 2.8) or a text declaration (XML 1.0, section 4.3.1) |
---|
| 1107 | * using this method.</p> |
---|
| 1108 | * |
---|
| 1109 | * @param target The processing instruction target. |
---|
| 1110 | * @param data The processing instruction data, or null if |
---|
| 1111 | * none was supplied. |
---|
| 1112 | * @exception SAXException Any SAX exception, possibly |
---|
| 1113 | * wrapping another exception. |
---|
| 1114 | */ |
---|
| 1115 | virtual void processingInstruction |
---|
| 1116 | ( |
---|
| 1117 | const XMLCh* const target |
---|
| 1118 | , const XMLCh* const data |
---|
| 1119 | ); |
---|
| 1120 | |
---|
| 1121 | /** |
---|
| 1122 | * Receive an object for locating the origin of SAX document events. |
---|
| 1123 | * |
---|
| 1124 | * SAX parsers are strongly encouraged (though not absolutely |
---|
| 1125 | * required) to supply a locator: if it does so, it must supply |
---|
| 1126 | * the locator to the application by invoking this method before |
---|
| 1127 | * invoking any of the other methods in the DocumentHandler |
---|
| 1128 | * interface. |
---|
| 1129 | * |
---|
| 1130 | * The locator allows the application to determine the end |
---|
| 1131 | * position of any document-related event, even if the parser is |
---|
| 1132 | * not reporting an error. Typically, the application will |
---|
| 1133 | * use this information for reporting its own errors (such as |
---|
| 1134 | * character content that does not match an application's |
---|
| 1135 | * business rules). The information returned by the locator |
---|
| 1136 | * is probably not sufficient for use with a search engine. |
---|
| 1137 | * |
---|
| 1138 | * Note that the locator will return correct information only |
---|
| 1139 | * during the invocation of the events in this interface. The |
---|
| 1140 | * application should not attempt to use it at any other time. |
---|
| 1141 | * |
---|
| 1142 | * @param locator An object that can return the location of |
---|
| 1143 | * any SAX document event. The object is only |
---|
| 1144 | * 'on loan' to the client code and they are not |
---|
| 1145 | * to attempt to delete or modify it in any way! |
---|
| 1146 | * |
---|
| 1147 | * @see Locator#Locator |
---|
| 1148 | */ |
---|
| 1149 | virtual void setDocumentLocator(const Locator* const locator); |
---|
| 1150 | |
---|
| 1151 | /** |
---|
| 1152 | * Receive notification of the beginning of a document. |
---|
| 1153 | * |
---|
| 1154 | * <p>The SAX parser will invoke this method only once, before any |
---|
| 1155 | * other methods in this interface or in DTDHandler (except for |
---|
| 1156 | * setDocumentLocator).</p> |
---|
| 1157 | * |
---|
| 1158 | * @exception SAXException Any SAX exception, possibly |
---|
| 1159 | * wrapping another exception. |
---|
| 1160 | */ |
---|
| 1161 | virtual void startDocument(); |
---|
| 1162 | |
---|
| 1163 | /** |
---|
| 1164 | * Receive notification of the beginning of an element. |
---|
| 1165 | * |
---|
| 1166 | * <p>The Parser will invoke this method at the beginning of every |
---|
| 1167 | * element in the XML document; there will be a corresponding |
---|
| 1168 | * endElement() event for every startElement() event (even when the |
---|
| 1169 | * element is empty). All of the element's content will be |
---|
| 1170 | * reported, in order, before the corresponding endElement() |
---|
| 1171 | * event.</p> |
---|
| 1172 | * |
---|
| 1173 | * <p>Note that the attribute list provided will |
---|
| 1174 | * contain only attributes with explicit values (specified or |
---|
| 1175 | * defaulted): #IMPLIED attributes will be omitted.</p> |
---|
| 1176 | * |
---|
| 1177 | * @param uri The URI of the asscioated namespace for this element |
---|
| 1178 | * @param localname The local part of the element name |
---|
| 1179 | * @param qname The QName of this element |
---|
| 1180 | * @param attrs The attributes attached to the element, if any. |
---|
| 1181 | * @exception SAXException Any SAX exception, possibly |
---|
| 1182 | * wrapping another exception. |
---|
| 1183 | * @see #endElement |
---|
| 1184 | * @see Attributes#Attributes |
---|
| 1185 | */ |
---|
| 1186 | virtual void startElement |
---|
| 1187 | ( |
---|
| 1188 | const XMLCh* const uri, |
---|
| 1189 | const XMLCh* const localname, |
---|
| 1190 | const XMLCh* const qname, |
---|
| 1191 | const Attributes& attrs |
---|
| 1192 | ); |
---|
| 1193 | |
---|
| 1194 | /** |
---|
| 1195 | * Receive notification of the start of an namespace prefix mapping. |
---|
| 1196 | * |
---|
| 1197 | * <p>By default, do nothing. Application writers may override this |
---|
| 1198 | * method in a subclass to take specific actions at the start of |
---|
| 1199 | * each namespace prefix mapping.</p> |
---|
| 1200 | * |
---|
| 1201 | * @param prefix The namespace prefix used |
---|
| 1202 | * @param uri The namespace URI used. |
---|
| 1203 | * @exception SAXException Any SAX exception, possibly |
---|
| 1204 | * wrapping another exception. |
---|
| 1205 | */ |
---|
| 1206 | virtual void startPrefixMapping |
---|
| 1207 | ( |
---|
| 1208 | const XMLCh* const prefix, |
---|
| 1209 | const XMLCh* const uri |
---|
| 1210 | ); |
---|
| 1211 | |
---|
| 1212 | /** |
---|
| 1213 | * Receive notification of the end of an namespace prefix mapping. |
---|
| 1214 | * |
---|
| 1215 | * <p>By default, do nothing. Application writers may override this |
---|
| 1216 | * method in a subclass to take specific actions at the end of |
---|
| 1217 | * each namespace prefix mapping.</p> |
---|
| 1218 | * |
---|
| 1219 | * @param prefix The namespace prefix used |
---|
| 1220 | * @exception SAXException Any SAX exception, possibly |
---|
| 1221 | * wrapping another exception. |
---|
| 1222 | */ |
---|
| 1223 | virtual void endPrefixMapping |
---|
| 1224 | ( |
---|
| 1225 | const XMLCh* const prefix |
---|
| 1226 | ); |
---|
| 1227 | |
---|
| 1228 | /** |
---|
| 1229 | * Receive notification of a skipped entity |
---|
| 1230 | * |
---|
| 1231 | * <p>The parser will invoke this method once for each entity |
---|
| 1232 | * skipped. All processors may skip external entities, |
---|
| 1233 | * depending on the values of the features:<br> |
---|
| 1234 | * http://xml.org/sax/features/external-general-entities<br> |
---|
| 1235 | * http://xml.org/sax/features/external-parameter-entities</p> |
---|
| 1236 | * |
---|
| 1237 | * <p>Note: Xerces (specifically) never skips any entities, regardless |
---|
| 1238 | * of the above features. This function is never called in the |
---|
| 1239 | * Xerces implementation of SAX2.</p> |
---|
| 1240 | * |
---|
| 1241 | * <p>Introduced with SAX2</p> |
---|
| 1242 | * |
---|
| 1243 | * @param name The name of the skipped entity. If it is a parameter entity, |
---|
| 1244 | * the name will begin with %, and if it is the external DTD subset, |
---|
| 1245 | * it will be the string [dtd]. |
---|
| 1246 | * @exception SAXException Any SAX exception, possibly |
---|
| 1247 | * wrapping another exception. |
---|
| 1248 | */ |
---|
| 1249 | virtual void skippedEntity |
---|
| 1250 | ( |
---|
| 1251 | const XMLCh* const name |
---|
| 1252 | ); |
---|
| 1253 | |
---|
| 1254 | //@} |
---|
| 1255 | |
---|
| 1256 | // ----------------------------------------------------------------------- |
---|
| 1257 | // Implementation of the ErrorHandler interface |
---|
| 1258 | // ----------------------------------------------------------------------- |
---|
| 1259 | /** @name The error handler interface */ |
---|
| 1260 | //@{ |
---|
| 1261 | /** |
---|
| 1262 | * Receive notification of a warning. |
---|
| 1263 | * |
---|
| 1264 | * <p>SAX parsers will use this method to report conditions that |
---|
| 1265 | * are not errors or fatal errors as defined by the XML 1.0 |
---|
| 1266 | * recommendation. The default behaviour is to take no action.</p> |
---|
| 1267 | * |
---|
| 1268 | * <p>The SAX parser must continue to provide normal parsing events |
---|
| 1269 | * after invoking this method: it should still be possible for the |
---|
| 1270 | * application to process the document through to the end.</p> |
---|
| 1271 | * |
---|
| 1272 | * @param exc The warning information encapsulated in a |
---|
| 1273 | * SAX parse exception. |
---|
| 1274 | * @exception SAXException Any SAX exception, possibly |
---|
| 1275 | * wrapping another exception. |
---|
| 1276 | * @see SAXParseException#SAXParseException |
---|
| 1277 | */ |
---|
| 1278 | virtual void warning(const SAXParseException& exc); |
---|
| 1279 | |
---|
| 1280 | /** |
---|
| 1281 | * Receive notification of a recoverable error. |
---|
| 1282 | * |
---|
| 1283 | * <p>This corresponds to the definition of "error" in section 1.2 |
---|
| 1284 | * of the W3C XML 1.0 Recommendation. For example, a validating |
---|
| 1285 | * parser would use this callback to report the violation of a |
---|
| 1286 | * validity constraint. The default behaviour is to take no |
---|
| 1287 | * action.</p> |
---|
| 1288 | * |
---|
| 1289 | * <p>The SAX parser must continue to provide normal parsing events |
---|
| 1290 | * after invoking this method: it should still be possible for the |
---|
| 1291 | * application to process the document through to the end. If the |
---|
| 1292 | * application cannot do so, then the parser should report a fatal |
---|
| 1293 | * error even if the XML 1.0 recommendation does not require it to |
---|
| 1294 | * do so.</p> |
---|
| 1295 | * |
---|
| 1296 | * @param exc The error information encapsulated in a |
---|
| 1297 | * SAX parse exception. |
---|
| 1298 | * @exception SAXException Any SAX exception, possibly |
---|
| 1299 | * wrapping another exception. |
---|
| 1300 | * @see SAXParseException#SAXParseException |
---|
| 1301 | */ |
---|
| 1302 | virtual void error(const SAXParseException& exc); |
---|
| 1303 | |
---|
| 1304 | /** |
---|
| 1305 | * Receive notification of a non-recoverable error. |
---|
| 1306 | * |
---|
| 1307 | * <p>This corresponds to the definition of "fatal error" in |
---|
| 1308 | * section 1.2 of the W3C XML 1.0 Recommendation. For example, a |
---|
| 1309 | * parser would use this callback to report the violation of a |
---|
| 1310 | * well-formedness constraint.</p> |
---|
| 1311 | * |
---|
| 1312 | * <p>The application must assume that the document is unusable |
---|
| 1313 | * after the parser has invoked this method, and should continue |
---|
| 1314 | * (if at all) only for the sake of collecting addition error |
---|
| 1315 | * messages: in fact, SAX parsers are free to stop reporting any |
---|
| 1316 | * other events once this method has been invoked.</p> |
---|
| 1317 | * |
---|
| 1318 | * @param exc The error information encapsulated in a |
---|
| 1319 | * SAX parse exception. |
---|
| 1320 | * @exception SAXException Any SAX exception, possibly |
---|
| 1321 | * wrapping another exception. |
---|
| 1322 | * @see SAXParseException#SAXParseException |
---|
| 1323 | */ |
---|
| 1324 | virtual void fatalError(const SAXParseException& exc); |
---|
| 1325 | |
---|
| 1326 | /** |
---|
| 1327 | * Reset the Error handler object on its reuse |
---|
| 1328 | * |
---|
| 1329 | * <p>This method helps in reseting the Error handler object |
---|
| 1330 | * implementational defaults each time the Error handler is begun.</p> |
---|
| 1331 | * |
---|
| 1332 | */ |
---|
| 1333 | virtual void resetErrors(); |
---|
| 1334 | |
---|
| 1335 | //@} |
---|
| 1336 | |
---|
| 1337 | |
---|
| 1338 | private : |
---|
| 1339 | // ----------------------------------------------------------------------- |
---|
| 1340 | // Unimplemented constructors and operators |
---|
| 1341 | // ----------------------------------------------------------------------- |
---|
| 1342 | SAX2XMLFilterImpl(const SAX2XMLFilterImpl&); |
---|
| 1343 | SAX2XMLFilterImpl& operator=(const SAX2XMLFilterImpl&); |
---|
| 1344 | |
---|
| 1345 | // ----------------------------------------------------------------------- |
---|
| 1346 | // Private data members |
---|
| 1347 | // |
---|
| 1348 | // fParentReader |
---|
| 1349 | // The object that we are filtering |
---|
| 1350 | // |
---|
| 1351 | // fDocHandler |
---|
| 1352 | // The installed SAX content handler, if any. Null if none. |
---|
| 1353 | // |
---|
| 1354 | // fDTDHandler |
---|
| 1355 | // The installed SAX DTD handler, if any. Null if none. |
---|
| 1356 | // |
---|
| 1357 | // fEntityResolver |
---|
| 1358 | // The installed SAX entity handler, if any. Null if none. |
---|
| 1359 | // |
---|
| 1360 | // fErrorHandler |
---|
| 1361 | // The installed SAX error handler, if any. Null if none. |
---|
| 1362 | // |
---|
| 1363 | // ----------------------------------------------------------------------- |
---|
| 1364 | SAX2XMLReader* fParentReader; |
---|
| 1365 | ContentHandler* fDocHandler; |
---|
| 1366 | DTDHandler* fDTDHandler; |
---|
| 1367 | EntityResolver* fEntityResolver; |
---|
| 1368 | ErrorHandler* fErrorHandler; |
---|
| 1369 | }; |
---|
| 1370 | |
---|
| 1371 | |
---|
| 1372 | // --------------------------------------------------------------------------- |
---|
| 1373 | // SAX2XMLReader: Getter methods |
---|
| 1374 | // --------------------------------------------------------------------------- |
---|
| 1375 | inline SAX2XMLReader* SAX2XMLFilterImpl::getParent() const |
---|
| 1376 | { |
---|
| 1377 | return fParentReader; |
---|
| 1378 | } |
---|
| 1379 | |
---|
| 1380 | inline ContentHandler* SAX2XMLFilterImpl::getContentHandler() const |
---|
| 1381 | { |
---|
| 1382 | return fDocHandler; |
---|
| 1383 | } |
---|
| 1384 | |
---|
| 1385 | inline DTDHandler* SAX2XMLFilterImpl::getDTDHandler() const |
---|
| 1386 | { |
---|
| 1387 | return fDTDHandler; |
---|
| 1388 | } |
---|
| 1389 | |
---|
| 1390 | inline EntityResolver* SAX2XMLFilterImpl::getEntityResolver() const |
---|
| 1391 | { |
---|
| 1392 | return fEntityResolver; |
---|
| 1393 | } |
---|
| 1394 | |
---|
| 1395 | inline ErrorHandler* SAX2XMLFilterImpl::getErrorHandler() const |
---|
| 1396 | { |
---|
| 1397 | return fErrorHandler; |
---|
| 1398 | } |
---|
| 1399 | |
---|
| 1400 | inline LexicalHandler* SAX2XMLFilterImpl::getLexicalHandler() const |
---|
| 1401 | { |
---|
| 1402 | return 0; |
---|
| 1403 | } |
---|
| 1404 | |
---|
| 1405 | inline DeclHandler* SAX2XMLFilterImpl::getDeclarationHandler() const |
---|
| 1406 | { |
---|
| 1407 | return 0; |
---|
| 1408 | } |
---|
| 1409 | |
---|
| 1410 | inline void SAX2XMLFilterImpl::setContentHandler(ContentHandler* const handler) |
---|
| 1411 | { |
---|
| 1412 | fDocHandler = handler; |
---|
| 1413 | } |
---|
| 1414 | |
---|
| 1415 | inline void SAX2XMLFilterImpl::setDTDHandler(DTDHandler* const handler) |
---|
| 1416 | { |
---|
| 1417 | fDTDHandler = handler; |
---|
| 1418 | } |
---|
| 1419 | |
---|
| 1420 | inline void SAX2XMLFilterImpl::setErrorHandler(ErrorHandler* const handler) |
---|
| 1421 | { |
---|
| 1422 | fErrorHandler = handler; |
---|
| 1423 | } |
---|
| 1424 | |
---|
| 1425 | inline void SAX2XMLFilterImpl::setEntityResolver(EntityResolver* const resolver) |
---|
| 1426 | { |
---|
| 1427 | fEntityResolver = resolver; |
---|
| 1428 | } |
---|
| 1429 | |
---|
| 1430 | inline void SAX2XMLFilterImpl::setLexicalHandler(LexicalHandler* const /*handler*/) |
---|
| 1431 | { |
---|
| 1432 | } |
---|
| 1433 | |
---|
| 1434 | inline void SAX2XMLFilterImpl::setDeclarationHandler(DeclHandler* const /*handler*/) |
---|
| 1435 | { |
---|
| 1436 | } |
---|
| 1437 | |
---|
| 1438 | inline void SAX2XMLFilterImpl::installAdvDocHandler(XMLDocumentHandler* const /*toInstall*/) |
---|
| 1439 | { |
---|
| 1440 | } |
---|
| 1441 | |
---|
| 1442 | inline bool SAX2XMLFilterImpl::removeAdvDocHandler(XMLDocumentHandler* const /*toRemove*/) |
---|
| 1443 | { |
---|
| 1444 | return false; |
---|
| 1445 | } |
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| 1446 | |
---|
| 1447 | XERCES_CPP_NAMESPACE_END |
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| 1448 | |
---|
| 1449 | #endif |
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