| // remove a flag in the string␊ |
| void KernOptionsParser::removeFlag(const std::string& flag)␊ |
| {␊ |
| ␉std::string::size_type found = _options.find(flag);␊ |
| ␉if (flag.length()==0) return; // not a flag, bye␊ |
| ␉std::string::size_type pos, l = _options.length();␉␊ |
| ␉if (l==0) return; // empty options nothing to do␉␊ |
| ␉std::string f = string_left(flag, "=");␊ |
| ␉std::string::size_type found = _options.find(f);␊ |
| ␉if (found==std::string::npos) return;␊ |
| ␉_options.erase(found, found+flag.length());␊ |
| ␉// find the end of the flag␊ |
| ␉for ( pos=found+flag.length(); pos<l && _options[pos]!=' '; pos++);␊ |
| ␉_options.erase(found, pos);␊ |
| ␉_options = trim(_options);␊ |
| }␊ |
| ␊ |
| // remove a flag in the string␊ |
| void KernOptionsParser::addFlag(const std::string& flag)␊ |
| {␊ |
| ␉std::string::size_type found = _options.find(flag);␊ |
| ␉if (found!=std::string::npos) return;␊ |
| ␉// finding a flag can be tricky as some have a variable part of the form:␊ |
| ␉// flag=value and what we want is to keep identify them while they will varyà␊ |
| ␉std::string key= string_left(flag,"=");␊ |
| ␉␊ |
| ␉std::string::size_type found = _options.find(key);␊ |
| ␉if (found!=std::string::npos) ␊ |
| ␉␉removeFlag(key);␊ |
| ␉_options = " " + _options;␊ |
| ␉_options = flag + _options;␊ |
| ␉_options = trim(_options);␊ |
