// -*- coding: utf-8 -*-
// Copyright (C) 2012 Laboratoire de Recherche et Developpement de
// l'Epita (LRDE)
// Copyright (C) 2004  Laboratoire d'Informatique de Paris 6 (LIP6),
// département Systèmes Répartis Coopératifs (SRC), Université Pierre
// et Marie Curie.
//
// This file is part of Spot, a model checking library.
//
// Spot 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 3 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#include <sstream>
#include <ostream>
#include <algorithm>
#include <functional>
#include <cctype>
#include <locale>
#include "escape.hh"

namespace spot
{
  std::ostream&
  escape_str(std::ostream& os, const std::string& str)
  {
    for (std::string::const_iterator i = str.begin(); i != str.end(); ++i)
      switch (*i)
	{
	case '\\':
	  os << "\\\\";
	  break;
	case '"':
	  os << "\\\"";
	  break;
	case '\n':
	  os << "\\n";
	  break;
	default:
	  os << *i;
	  break;
	}
    return os;
  }

  std::string
  escape_str(const std::string& str)
  {
    std::ostringstream os;
    escape_str(os, str);
    return os.str();
  }

  void
  trim(std::string& str)
  {
    str.erase(std::find_if(str.rbegin(), str.rend(),
			   std::not1(std::ptr_fun<int, int>
				     (std::isspace))).base(),
	      str.end());
    str.erase(str.begin(),
	      std::find_if(str.begin(), str.end(),
			   std::not1(std::ptr_fun<int, int>(std::isspace))));
  }
}