krat_exp_parser.hh

Go to the documentation of this file.

// krat_exp_parser.hh: this file is part of the Vaucanson project.
//
// Vaucanson, a generic library for finite state machines.
//
// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2008 The Vaucanson Group.
//
// This program 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.
//
// The complete GNU General Public Licence Notice can be found as the
// `COPYING' file in the root directory.
//
// The Vaucanson Group consists of people listed in the `AUTHORS' file.
//

#ifndef VCSN_ALGEBRA_IMPLEMENTATION_SERIES_KRAT_EXP_PARSER_HH
# define VCSN_ALGEBRA_IMPLEMENTATION_SERIES_KRAT_EXP_PARSER_HH

# include <vaucanson/design_pattern/design_pattern.hh>
# include <vector>
# include <string>

namespace vcsn {

  namespace algebra {
    struct token_representation_t
    {
      std::string               open_par;
      std::string               close_par;
      std::string               plus;
      std::string               times;
      std::string               star;
      std::string               one;
      std::string               zero;
      std::string               open_weight;
      std::string               close_weight;
      std::vector<std::string>  spaces;

      // Default constructor
      token_representation_t() :
        open_par("("),
        close_par(")"),
        plus("+"),
        times("."),
        star("*"),
        one("1"),
        zero("0"),
        open_weight("{"),
        close_weight("}")
        {
          spaces.push_back(" ");
        }
    };

    template <class S, class T>
    std::pair<bool, std::string>
    parse(const std::string& from,
          Element<S, T>& exp,
          const token_representation_t tok_rep = token_representation_t(),
          bool lex_trace = false,
          bool parse_trace = false);

  } // algebra

} // vcsn

# if !defined VCSN_USE_INTERFACE_ONLY || defined VCSN_USE_LIB
#  include <vaucanson/algebra/implementation/series/krat_exp_parser.hxx>
# endif // VCSN_USE_INTERFACE_ONLY

#endif // ! VCSN_ALGEBRA_IMPLEMENTATION_SERIES_KRAT_EXP_PARSER_HH

---