Gabriele Cosmo
85 lines
2.9 KiB
Plaintext
85 lines
2.9 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_tokenize
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#define tools_tokenize
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#include <string>
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#include <vector>
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namespace tools {
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inline bool double_quotes_get_token(const std::string& a_cmd,std::string::size_type a_begIdx,
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std::string::size_type& a_endIdx,std::string& a_token) {
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while ( a_cmd[a_begIdx] == ' ') ++a_begIdx; // Loop checking, 23.06.2015, I. Hrivnacova
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if ( a_cmd[a_begIdx] == '"' ) {
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a_endIdx = a_cmd.find('"', a_begIdx+1);
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if ( a_endIdx == std::string::npos ) a_endIdx = a_cmd.length();
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a_token = a_cmd.substr(a_begIdx+1, (a_endIdx-1)-a_begIdx);
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++a_endIdx;
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}
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else {
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a_endIdx = a_cmd.find(' ', a_begIdx);
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if ( a_endIdx == std::string::npos ) a_endIdx = a_cmd.length();
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a_token = a_cmd.substr(a_begIdx, a_endIdx-a_begIdx);
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}
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return ( a_token.length() > 0 );
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}
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// From a string, double_quotes_tokenize permits to get arguments
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// by taking into account strings enclosed by double quotes and potentially
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// containing spaces (for example to specify a file path containing spaces).
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// Example:
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// if a_cmd is the string: aa bbb "ccc ddd" ee "fff gg"
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// Returned a_args string list will be:
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// "aa", "bb", "ccc ddd", "ee", "fff gg"
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// Algorithm from Geant4/G4AnalysisUtilities.cc/Tokenize() done by Ivana Hrivnacova.
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inline void double_quotes_tokenize(const std::string& a_cmd, std::vector<std::string>& a_args) {
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std::string::size_type begIdx = 0;
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std::string::size_type endIdx = 0;
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std::string token;
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do {
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if ( double_quotes_get_token(a_cmd, begIdx, endIdx, token) ) {
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a_args.push_back(token);
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}
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begIdx = endIdx + 1;
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}
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while ( endIdx < a_cmd.length() ); // Loop checking, 23.06.2015, I. Hrivnacova
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}
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inline void words(const std::string& a_string,const std::string& a_sep,bool a_take_empty,
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std::vector<std::string>& a_words,bool a_clear = true){
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// If a_sep is for exa "|" and for "xxx||xxx" :
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// - a_take_empty false : {"xxx","xxx"} will be created
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// (and NOT {"xxx","","xxx"}).
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// - a_take_empty true : {"xxx","","xxx"} will be created.
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if(a_clear) a_words.clear();
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if(a_string.empty()) return;
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std::string::size_type lim = (a_take_empty?0:1);
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if(a_sep.empty()) {
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a_words.push_back(a_string);
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} else {
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std::string::size_type l = a_string.length();
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std::string::size_type llimiter = a_sep.length();
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std::string::size_type pos = 0;
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while(true) {
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std::string::size_type index = a_string.find(a_sep,pos);
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if(index==std::string::npos){ // Last word.
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if((l-pos)>=lim) a_words.push_back(a_string.substr(pos,l-pos));
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break;
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} else {
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// abcxxxef
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// 0 3 67
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if((index-pos)>=lim) a_words.push_back(a_string.substr(pos,index-pos));
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pos = index + llimiter;
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}
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}
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}
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}
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}
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#endif
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