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: XMLStringTokenizer.hpp 932887 2010-04-11 13:04:59Z borisk $ 00020 */ 00021 00022 #if !defined(XERCESC_INCLUDE_GUARD_XMLSTRINGTOKENIZER_HPP) 00023 #define XERCESC_INCLUDE_GUARD_XMLSTRINGTOKENIZER_HPP 00024 00025 #include <xercesc/util/RefArrayVectorOf.hpp> 00026 #include <xercesc/util/XMLString.hpp> 00027 00028 XERCES_CPP_NAMESPACE_BEGIN 00029 00042 class XMLUTIL_EXPORT XMLStringTokenizer :public XMemory 00043 { 00044 public: 00045 // ----------------------------------------------------------------------- 00046 // Public Constructors 00047 // ----------------------------------------------------------------------- 00050 00063 XMLStringTokenizer(const XMLCh* const srcStr, 00064 MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager); 00065 00076 XMLStringTokenizer(const XMLCh* const srcStr 00077 , const XMLCh* const delim 00078 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager); 00079 00081 00082 // ----------------------------------------------------------------------- 00083 // Public Destructor 00084 // ----------------------------------------------------------------------- 00087 00088 ~XMLStringTokenizer(); 00089 00091 00092 // ----------------------------------------------------------------------- 00093 // Management methods 00094 // ----------------------------------------------------------------------- 00097 00104 bool hasMoreTokens(); 00105 00114 unsigned int countTokens(); 00115 00122 XMLCh* nextToken(); 00123 00125 00126 private: 00127 // ----------------------------------------------------------------------- 00128 // Unimplemented constructors and operators 00129 // ----------------------------------------------------------------------- 00130 XMLStringTokenizer(const XMLStringTokenizer&); 00131 XMLStringTokenizer& operator=(const XMLStringTokenizer&); 00132 00133 // ----------------------------------------------------------------------- 00134 // CleanUp methods 00135 // ----------------------------------------------------------------------- 00136 void cleanUp(); 00137 00138 // ----------------------------------------------------------------------- 00139 // Helper methods 00140 // ----------------------------------------------------------------------- 00141 bool isDelimeter(const XMLCh ch); 00142 00143 // ----------------------------------------------------------------------- 00144 // Private data members 00145 // 00146 // fOffset 00147 // The current position in the parsed string. 00148 // 00149 // fStringLen 00150 // The length of the string parsed (for convenience). 00151 // 00152 // fString 00153 // The string to be parsed 00154 // 00155 // fDelimeters 00156 // A set of delimiter characters 00157 // 00158 // fTokens 00159 // A vector of the token strings 00160 // ----------------------------------------------------------------------- 00161 XMLSize_t fOffset; 00162 XMLSize_t fStringLen; 00163 XMLCh* fString; 00164 const XMLCh* fDelimeters; 00165 RefArrayVectorOf<XMLCh>* fTokens; 00166 MemoryManager* fMemoryManager; 00167 }; 00168 00169 // --------------------------------------------------------------------------- 00170 // XMLStringTokenizer: Helper methods 00171 // --------------------------------------------------------------------------- 00172 inline bool XMLStringTokenizer::isDelimeter(const XMLCh ch) { 00173 00174 return XMLString::indexOf(fDelimeters, ch) == -1 ? false : true; 00175 } 00176 00177 00178 // --------------------------------------------------------------------------- 00179 // XMLStringTokenizer: Management methods 00180 // --------------------------------------------------------------------------- 00181 inline unsigned int XMLStringTokenizer::countTokens() { 00182 00183 if (fStringLen == 0) 00184 return 0; 00185 00186 unsigned int tokCount = 0; 00187 bool inToken = false; 00188 00189 for (XMLSize_t i= fOffset; i< fStringLen; i++) { 00190 00191 if (isDelimeter(fString[i])) { 00192 00193 if (inToken) { 00194 inToken = false; 00195 } 00196 00197 continue; 00198 } 00199 00200 if (!inToken) { 00201 00202 tokCount++; 00203 inToken = true; 00204 } 00205 00206 } // end for 00207 00208 return tokCount; 00209 } 00210 00211 XERCES_CPP_NAMESPACE_END 00212 00213 #endif 00214
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