cmdline.cpp

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/*
  Cmdline  -  abstraction of the usual commandline, a sequence of strings
 
   Copyright (C)
     2008,            Hermann Vosseler <Ichthyostega@web.de>
 
 **Lumiera** is free software; you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
 Free Software Foundation; either version 2 of the License, or (at your
 option) any later version. See the file COPYING for further details.
 
* *****************************************************************/
 
 
#include "include/logging.h"
#include "lib/hash-standard.hpp"
#include "lib/cmdline.hpp"
#include "lib/format-util.hpp"
 
#include <regex>
 
using std::regex;
using std::smatch;
using std::regex_search;
using util::join;
using util::noneg;
 
 
 
namespace lib {
  
  
  Cmdline::Cmdline (int argc, const char** argv)
    : vector<string> (noneg(argc-1))
    {
      for (int i=1; i<argc; ++i)
        {
          ASSERT (argv[i]);
          (*this)[i-1] = argv[i];
        }
    }
   
   
  Cmdline::Cmdline (const string cmdline)
    {
      static regex TOKENDEF{"\\S+"};
      smatch match;
      string::const_iterator it = cmdline.begin();
      string::const_iterator end = cmdline.end();
      
      while (regex_search(it, end, match, TOKENDEF))
        {
          string ss(match[0]);
          this->push_back(ss);
          it = match[0].second;
        }
      
    }
  
  
  Cmdline::operator string () const
    {
      return join(*this," ");
    }
  
  
  
} // namespace lib