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# krat_exp_proxy.hh

    00001 // krat_exp_proxy.hh: this file is part of the Vaucanson project.
    00002 //
    00003 // Vaucanson, a generic library for finite state machines.
    00004 //
    00005 // Copyright (C) 2008 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
    00018 #ifndef VCSN_ALGEBRA_IMPLEMENTATION_SERIES_KRAT_EXP_PROXY_HH
    00019 # define VCSN_ALGEBRA_IMPLEMENTATION_SERIES_KRAT_EXP_PROXY_HH
    00020 # include <vaucanson/design_pattern/design_pattern.hh>
    00021
    00022 namespace vcsn {
    00023
    00024   namespace algebra {
    00025
    00033     struct semiring_virtual
    00034     {
    00035       virtual semiring_virtual& operator=(semiring_virtual& sem) = 0;
    00036       virtual ~semiring_virtual() {}
    00037     };
    00038
    00044     struct krat_exp_virtual
    00045     {
    00046       /* Virtual fonctions used in the parser */
    00047       virtual krat_exp_virtual& operator=(krat_exp_virtual& exp) = 0;
    00048       virtual krat_exp_virtual* operator+(krat_exp_virtual* exp) = 0;
    00049       virtual krat_exp_virtual* operator*(krat_exp_virtual* exp) = 0;
    00050       virtual void star() = 0;
    00051       virtual void left_weight(semiring_virtual* sem) = 0;
    00052       virtual void right_weight(semiring_virtual* sem) = 0;
    00053       virtual ~krat_exp_virtual() {}
    00054     };
    00055
    00060    template <class S, class T>
    00061     struct krat_exp_proxy : public krat_exp_virtual
    00062     {
    00063       typedef typename Element<S, T>::monoid_elt_t monoid_elt_t;
    00064
    00065       // Constructors && Destructor
    00066       krat_exp_proxy(Element<S, T> exp);
    00067       ~krat_exp_proxy() {}
    00068
    00069       krat_exp_virtual& operator=(krat_exp_virtual& exp);
    00070       krat_exp_virtual* operator+(krat_exp_virtual* exp);
    00071       krat_exp_virtual* operator*(krat_exp_virtual* exp);
    00072       void star();
    00073       void left_weight(semiring_virtual* sem);
    00074       void right_weight(semiring_virtual* sem);
    00075
    00076       // Attibutes
    00077       Element<S, T> self;
    00078     };
    00079
    00084     template <class S, class T>
    00085     struct semiring_proxy : public semiring_virtual
    00086     {
    00087       typedef typename Element<S, T>::semiring_elt_t semiring_elt_t;
    00088
    00089       //Constructor && Destructor
    00090       semiring_proxy(semiring_elt_t& sem);
    00091       ~semiring_proxy() {}
    00092
    00093       semiring_virtual& operator=(semiring_virtual& sem);
    00094
    00095       // Attibutes
    00096       semiring_elt_t self;
    00097     };
    00098
    00101   } // algebra
    00102
    00103 } // vcsn
    00104
    00105 # if !defined VCSN_USE_INTERFACE_ONLY || defined VCSN_USE_LIB
    00106 #  include <vaucanson/algebra/implementation/series/krat_exp_proxy.hxx>
    00107 # endif // VCSN_USE_INTERFACE_ONLY
    00108
    00109 #endif // !VCSN_ALGEBRA_IMPLEMENTATION_SERIES_KRAT_EXP_PROXY_HH //