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/********************************************************************** |
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tokenst.cpp - Tokenize a string. |
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|
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Copyright (C) 1998-2001 by OpenEye Scientific Software, Inc. |
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Some portions Copyright (C) 2001-2005 by Geoffrey R. Hutchison |
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|
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This file is part of the Open Babel project. |
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For more information, see <http://openbabel.sourceforge.net/> |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation version 2 of the License. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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***********************************************************************/ |
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|
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#ifdef WIN32 |
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#pragma warning (disable : 4786) |
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#endif |
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|
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#include <algorithm> |
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#include <vector> |
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#include <string> |
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|
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#include "config.h" |
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|
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using namespace std; |
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/* |
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OBAPI bool tokenize(vector<string> &, const char *, const char *); |
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OBAPI char *trim_spaces(char *string); |
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OBAPI bool tokenize(vector<string> &vcr, string &s, const char *delimstr,int limit=-1); |
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*/ |
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namespace OpenBabel |
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{ |
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|
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//! Break a string (supplied as the second argument) into tokens, returned |
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//! in the first argument. Tokens are determined by the delimiters supplied |
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//! (defaults to whitespace (i.e., spaces, tabs, newlines) |
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OBAPI bool tokenize(vector<string> &vcr, const char *buf, const char *delimstr) |
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{ |
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vcr.clear(); |
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string s = buf; |
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s += "\n"; |
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size_t startpos=0,endpos=0; |
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|
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for (;;) |
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{ |
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startpos = s.find_first_not_of(delimstr,startpos); |
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endpos = s.find_first_of(delimstr,startpos); |
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|
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if (endpos <= s.size() && startpos <= s.size()) |
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vcr.push_back(s.substr(startpos,endpos-startpos)); |
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else |
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break; |
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|
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startpos = endpos+1; |
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} |
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|
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return(true); |
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} |
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|
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//! Trim any trailing spaces at the end of the supplied string. |
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OBAPI char *trim_spaces(char *string) |
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{ |
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int length; |
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|
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length = strlen(string); |
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if (length == 0) |
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return string; |
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|
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while ((length > 0) && (string[0] == ' ')) |
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{ |
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string++; |
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--length; |
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} |
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|
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if (length > 0) |
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{ |
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while ((length > 0) && (string[length-1] == ' ')) |
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{ |
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string[length-1] = '\0'; |
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--length; |
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} |
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} |
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|
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return(string); |
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} |
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|
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//! Break a string (supplied as the second argument) into tokens, returned |
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//! in the first argument. Tokens are determined by the delimiters supplied |
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//! (defaults to whitespace (i.e., spaces, tabs, newlines) |
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//! Only breaks at most 'limit' tokens and the last item in the vector may |
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//! include un-parsed tokens. |
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OBAPI bool tokenize(vector<string> &vcr, string &s, const char *delimstr, int limit) |
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{ |
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vcr.clear(); |
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size_t startpos=0,endpos=0; |
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|
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int matched=0; |
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unsigned int s_size = s.size(); |
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for (;;) |
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{ |
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startpos = s.find_first_not_of(delimstr,startpos); |
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endpos = s.find_first_of(delimstr,startpos); |
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if (endpos <= s_size && startpos <= s_size) |
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{ |
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vcr.push_back(s.substr(startpos,endpos-startpos)); |
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|
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matched++; |
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if (matched == limit) |
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{ |
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startpos = endpos+1; |
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vcr.push_back(s.substr(startpos,s_size)); |
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break; |
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} |
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} |
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else |
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{ |
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if (startpos < s_size) |
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vcr.push_back(s.substr(startpos,s_size-startpos)); |
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break; |
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} |
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|
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startpos = endpos+1; |
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} |
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return(true); |
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} |
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|
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OBAPI void Trim(string& txt) |
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{ |
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string::size_type pos = txt.find_last_not_of(" \t\n\r"); |
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if(pos!=string::npos) |
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txt.erase(pos+1); |
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else |
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txt.erase(); |
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|
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pos = txt.find_first_not_of(" \t\n\r"); |
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if(pos!=string::npos) |
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txt.erase(0, pos); |
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else |
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txt.erase(); |
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} |
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|
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} // end namespace OpenBabel |
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|
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//! \file tokenst.cpp |
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//! \brief Tokenize a string. |
