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# usual_io.hxx

    00001 // usual_io.hxx: this file is part of the Vaucanson project.
    00002 //
    00003 // Vaucanson, a generic library for finite state machines.
    00004 //
    00005 // Copyright (C) 2001, 2002, 2003, 2004, 2005 The Vaucanson Group.
    00006 //
    00007 // This program is free software; you can redistribute it and/or
    00008 // modify it under the terms of the GNU General Public License
    00009 // as published by the Free Software Foundation; either version 2
    00010 // of the License, or (at your option) any later version.
    00011 //
    00012 // The complete GNU General Public Licence Notice can be found as the
    00013 // `COPYING' file in the root directory.
    00014 //
    00015 // The Vaucanson Group consists of people listed in the `AUTHORS' file.
    00016 //
    00017 #ifndef VCSN_TOOLS_USUAL_IO_HXX
    00018 # define VCSN_TOOLS_USUAL_IO_HXX
    00019
    00020 # include <vaucanson/tools/usual_io.hh>
    00021 # include <vaucanson/algebra/implementation/series/krat_exp_parser.hh>
    00022 # include <vaucanson/algorithms/finite_support_conversion.hh>
    00023 # include <sstream>
    00024
    00025 namespace vcsn
    00026 {
    00027   namespace tools
    00028   {
    00029     template<typename ExpType>
    00030     template<typename Auto>
    00031     std::string
    00032     usual_converter_poly<ExpType>::
    00033     operator()(const Auto& a,
    00034                const typename Auto::series_set_elt_t& p) const
    00035     {
    00036       ExpType e = ExpType(a.structure().series());
    00037       finite_support_convert(e, p);
    00038       std::ostringstream os;
    00039       os << e;
    00040       return os.str();
    00041     }
    00042
    00043     template<typename ExpType>
    00044     template<typename Auto>
    00045     typename Auto::series_set_elt_t
    00046     usual_converter_poly<ExpType>::operator()(const Auto& a,
    00047                                               const std::string& str) const
    00048     {
    00049       ExpType e = ExpType(a.structure().series());
    00050       algebra::parse(str, e);
    00051       typename Auto::series_set_elt_t s =
    00052         typename Auto::series_set_elt_t(a.structure().series());
    00053       finite_support_convert(s, e);
    00054       return s;
    00055     }
    00056
    00057     template<typename Auto>
    00058     std::string
    00059     usual_converter_exp::operator()(const Auto& a,
    00060                                     const typename Auto::series_set_elt_t& e) const
    00061     {
    00062       std::ostringstream os;
    00063       os << e;
    00064       return os.str();
    00065     }
    00066
    00067     template<typename Auto>
    00068     typename Auto::series_set_elt_t
    00069     usual_converter_exp::operator()(const Auto& a, const std::string& s) const
    00070     {
    00071       typedef typename Auto::series_set_elt_t exp_t;
    00072       exp_t ret = exp_t(a.structure().series());
    00073       algebra::parse(s, ret);
    00074       return ret;
    00075     }
    00076
    00077   }
    00078
    00079 }
    00080
    00081 #endif // ! VCSN_TOOLS_USUAL_IO_HXX