random_visitor.hh

00001 // random_visitor.hh: 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 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_ALGEBRA_IMPLEMENTATION_SERIES_RAT_RANDOM_VISITOR_HH
00018 # define VCSN_ALGEBRA_IMPLEMENTATION_SERIES_RAT_RANDOM_VISITOR_HH
00019 
00020 # include <algorithm>
00021 # include <vaucanson/algebra/implementation/series/rat/nodes.hh>
00022 
00023 namespace vcsn {
00024 
00025   namespace rat {
00026 
00027     template<typename M_, typename W_>
00028     class RandomVisitor : public ConstNodeVisitor<M_, W_>
00029     {
00030     public:
00031       static const unsigned nb_star_max_default /* = 5 */;
00032 
00033       RandomVisitor(unsigned nb_star_max);
00034       RandomVisitor();
00035 
00036       virtual void
00037       product(const Node<M_, W_>* left_, const Node<M_, W_>* right_);
00038       virtual void
00039       sum(const Node<M_, W_>* left_, const Node<M_, W_>* right_);
00040 
00041       virtual void
00042       star(const Node<M_, W_>* node);
00043 
00044       virtual void left_weight(const W_&, const Node<M_, W_>*);
00045       virtual void right_weight(const W_&, const Node<M_, W_>*);
00046 
00047       virtual void
00048       constant(const M_& m);
00049       virtual void zero();
00050       virtual void one();
00051 
00052       M_ get() const;
00053 
00054     protected:
00055       M_                w_;
00056       bool              not_empty;
00057       unsigned          nb_star_max_;
00058     };
00059 
00060   } // rat
00061 
00062 } // vcsn
00063 
00064 
00065 #ifndef VCSN_USE_INTERFACE_ONLY
00066     # include <vaucanson/algebra/implementation/series/rat/random_visitor.hxx>
00067 #endif // VCSN_USE_INTERFACE_ONLY
00068 
00069 
00070 #endif // ! VCSN_ALGEBRA_IMPLEMENTATION_SERIES_RAT_RANDOM_VISITOR_HH

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