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00001 /* 00002 * Licensed to the Apache Software Foundation (ASF) under one or more 00003 * contributor license agreements. See the NOTICE file distributed with 00004 * this work for additional information regarding copyright ownership. 00005 * The ASF licenses this file to You under the Apache License, Version 2.0 00006 * (the "License"); you may not use this file except in compliance with 00007 * the License. You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, 00013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 */ 00017 00018 /* 00019 * $Id: ParserForXMLSchema.cpp 678879 2008-07-22 20:05:05Z amassari $ 00020 */ 00021 00022 // --------------------------------------------------------------------------- 00023 // Includes 00024 // --------------------------------------------------------------------------- 00025 #include <xercesc/util/regx/ParserForXMLSchema.hpp> 00026 #include <xercesc/util/regx/TokenFactory.hpp> 00027 #include <xercesc/util/regx/RangeToken.hpp> 00028 #include <xercesc/util/regx/TokenInc.hpp> 00029 #include <xercesc/util/regx/RegxDefs.hpp> 00030 #include <xercesc/util/ParseException.hpp> 00031 #include <xercesc/util/RuntimeException.hpp> 00032 #include <xercesc/util/PlatformUtils.hpp> 00033 00034 XERCES_CPP_NAMESPACE_BEGIN 00035 00036 // --------------------------------------------------------------------------- 00037 // ParserForXMLSchema: Constructors and Destructors 00038 // --------------------------------------------------------------------------- 00039 ParserForXMLSchema::ParserForXMLSchema(MemoryManager* const manager) 00040 : RegxParser(manager) 00041 { 00042 00043 } 00044 00045 ParserForXMLSchema::~ParserForXMLSchema() { 00046 00047 } 00048 00049 // --------------------------------------------------------------------------- 00050 // ParserForXMLSchema: Parsing/Processing methods 00051 // --------------------------------------------------------------------------- 00052 Token* ParserForXMLSchema::processCaret() { 00053 00054 // XML Schema treats "^" like any other char 00055 processNext(); 00056 return getTokenFactory()->createChar(chCaret); 00057 } 00058 00059 Token* ParserForXMLSchema::processDollar() { 00060 00061 // XML Schema treats "$" like any other char 00062 processNext(); 00063 return getTokenFactory()->createChar(chDollarSign); 00064 } 00065 00066 Token* ParserForXMLSchema::processPlus(Token* const tok) { 00067 00068 // XML Schema doesn't support reluctant quantifiers 00069 processNext(); 00070 return getTokenFactory()->createConcat(tok, 00071 getTokenFactory()->createClosure(tok)); 00072 } 00073 00074 Token* ParserForXMLSchema::processStar(Token* const tok) { 00075 00076 // XML Schema doesn't support reluctant quantifiers 00077 processNext(); 00078 return getTokenFactory()->createClosure(tok); 00079 } 00080 00081 Token* ParserForXMLSchema::processQuestion(Token* const tok) { 00082 00083 // XML Schema doesn't support reluctant quantifiers 00084 processNext(); 00085 00086 TokenFactory* tokFactory = getTokenFactory(); 00087 Token* retTok = tokFactory->createUnion(); 00088 retTok->addChild(tok, tokFactory); 00089 retTok->addChild(tokFactory->createToken(Token::T_EMPTY), tokFactory); 00090 return retTok; 00091 } 00092 00093 Token* ParserForXMLSchema::processParen() { 00094 00095 // XML Schema doesn't support back references 00096 processNext(); 00097 Token* retTok = getTokenFactory()->createParenthesis(parseRegx(true), 0); 00098 00099 if (getState() != REGX_T_RPAREN) { 00100 ThrowXMLwithMemMgr(ParseException, XMLExcepts::Parser_Factor1, getMemoryManager()); 00101 } 00102 00103 processNext(); 00104 return retTok; 00105 } 00106 00107 Token* ParserForXMLSchema::processBackReference() { 00108 00109 // XML Schema doesn't support back references 00110 ThrowXMLwithMemMgr(RuntimeException, XMLExcepts::Regex_NotSupported, getMemoryManager()); 00111 return 0; // for compilers that complain about no return value 00112 } 00113 00114 // --------------------------------------------------------------------------- 00115 // ParserForXMLSchema: Helper methods 00116 // --------------------------------------------------------------------------- 00117 bool ParserForXMLSchema::checkQuestion(const XMLSize_t ) { 00118 00119 // XML Schema doesn't support reluctant quantifiers 00120 return false; 00121 } 00122 00123 00124 XMLInt32 ParserForXMLSchema::decodeEscaped() { 00125 00126 // XML Schema doesn't support an escaped "$" 00127 if (getState() != REGX_T_BACKSOLIDUS) 00128 ThrowXMLwithMemMgr(ParseException,XMLExcepts::Parser_Next1, getMemoryManager()); 00129 00130 XMLInt32 ch = getCharData(); 00131 00132 switch (ch) { 00133 case chLatin_n: 00134 ch = chLF; 00135 break; 00136 case chLatin_r: 00137 ch = chCR; 00138 break; 00139 case chLatin_t: 00140 ch = chHTab; 00141 break; 00142 case chBackSlash: 00143 case chPipe: 00144 case chPeriod: 00145 case chCaret: 00146 case chDash: 00147 case chQuestion: 00148 case chAsterisk: 00149 case chPlus: 00150 case chOpenCurly: 00151 case chCloseCurly: 00152 case chOpenParen: 00153 case chCloseParen: 00154 case chOpenSquare: 00155 case chCloseSquare: 00156 break; 00157 default: 00158 { 00159 XMLCh chString[] = {chBackSlash, ch, chNull}; 00160 ThrowXMLwithMemMgr1(ParseException,XMLExcepts::Parser_Process2, chString, getMemoryManager()); 00161 } 00162 } 00163 00164 return ch; 00165 } 00166 00167 XERCES_CPP_NAMESPACE_END 00168