GNU CommonC++
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00001 // Copyright (C) 1999-2005 Open Source Telecom Corporation. 00002 // 00003 // This program is free software; you can redistribute it and/or modify 00004 // it under the terms of the GNU General Public License as published by 00005 // the Free Software Foundation; either version 2 of the License, or 00006 // (at your option) any later version. 00007 // 00008 // This program is distributed in the hope that it will be useful, 00009 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00010 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00011 // GNU General Public License for more details. 00012 // 00013 // You should have received a copy of the GNU General Public License 00014 // along with this program; if not, write to the Free Software 00015 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00016 // 00017 // As a special exception, you may use this file as part of a free software 00018 // library without restriction. Specifically, if other files instantiate 00019 // templates or use macros or inline functions from this file, or you compile 00020 // this file and link it with other files to produce an executable, this 00021 // file does not by itself cause the resulting executable to be covered by 00022 // the GNU General Public License. This exception does not however 00023 // invalidate any other reasons why the executable file might be covered by 00024 // the GNU General Public License. 00025 // 00026 // This exception applies only to the code released under the name GNU 00027 // Common C++. If you copy code from other releases into a copy of GNU 00028 // Common C++, as the General Public License permits, the exception does 00029 // not apply to the code that you add in this way. To avoid misleading 00030 // anyone as to the status of such modified files, you must delete 00031 // this exception notice from them. 00032 // 00033 // If you write modifications of your own for GNU Common C++, it is your choice 00034 // whether to permit this exception to apply to your modifications. 00035 // If you do not wish that, delete this exception notice. 00036 // 00037 00043 #ifndef CCXX_TOKENIZER_H_ 00044 #define CCXX_TOKENIZER_H_ 00045 00046 #ifndef CCXX_MISSING_H_ 00047 #include <cc++/missing.h> 00048 #endif 00049 00050 #ifndef CCXX_THREAD_H_ 00051 #include <cc++/thread.h> 00052 #endif 00053 00054 #ifdef CCXX_NAMESPACES 00055 namespace ost { 00056 #endif 00057 00101 class __EXPORT StringTokenizer { 00102 public: 00108 static const char * const SPACE; 00109 00119 // maybe move more global ? 00120 class NoSuchElementException { }; 00121 00126 class __EXPORT iterator { 00127 friend class StringTokenizer; // access our private constructors 00128 private: 00129 const StringTokenizer *myTok; // my StringTokenizer 00130 const char *start; // start of current token 00131 const char *tokEnd; // end of current token (->nxDelimiter) 00132 const char *endp; // one before next token 00133 char *token; // allocated token, if requested 00134 00135 // for initialization of the itEnd iterator 00136 iterator(const StringTokenizer &tok, const char *end) 00137 : myTok(&tok),tokEnd(0),endp(end),token(0) {} 00138 00139 iterator(const StringTokenizer &tok) 00140 : myTok(&tok),tokEnd(0),endp(myTok->str-1),token(0) { 00141 ++(*this); // init first token. 00142 } 00143 00144 public: 00145 iterator() : myTok(0),start(0),tokEnd(0),endp(0),token(0) {} 00146 00147 // see also: comment in implementation of operator++ 00148 virtual ~iterator() 00149 { if (token) *token='\0'; delete [] token; } 00150 00154 // everything, but not responsible for the allocated token. 00155 iterator(const iterator& i) : 00156 myTok(i.myTok),start(i.start),tokEnd(i.tokEnd), 00157 endp(i.endp),token(0) {} 00158 00162 // everything, but not responsible for the allocated token. 00163 iterator &operator = (const iterator &i) 00164 { 00165 myTok = i.myTok; 00166 start = i.start; endp = i.endp; tokEnd = i.tokEnd; 00167 if ( token ) 00168 delete [] token; 00169 token = 0; 00170 return *this; 00171 } 00172 00176 iterator &operator ++ () THROWS (NoSuchElementException); 00177 00186 const char* operator * () THROWS (NoSuchElementException); 00187 00194 inline char nextDelimiter() const 00195 {return (tokEnd) ? *tokEnd : '\0';} 00196 00201 // only compare the end-position. speed. 00202 inline bool operator == (const iterator &other) const 00203 {return (endp == other.endp);} 00204 00209 // only compare the end position. speed. 00210 inline bool operator != (const iterator &other) const 00211 {return (endp != other.endp);} 00212 }; 00213 private: 00214 friend class StringTokenizer::iterator; 00215 const char *str; 00216 const char *delim; 00217 bool skipAll, trim; 00218 iterator itEnd; 00219 00220 public: 00259 StringTokenizer (const char *str, 00260 const char *delim, 00261 bool skipAllDelim = false, 00262 bool trim = false); 00263 00273 StringTokenizer (const char *s); 00274 00278 iterator begin() const 00279 {return iterator(*this);} 00280 00285 void setDelimiters (const char *d) 00286 {delim = d;} 00287 00292 iterator begin(const char *d) 00293 { 00294 delim = d; 00295 return iterator(*this); 00296 } 00297 00301 const iterator& end() const 00302 {return itEnd;} 00303 }; 00304 00305 #ifdef CCXX_NAMESPACES 00306 } 00307 #endif 00308 00309 #endif 00310