dgOptionFilter.h

00001 // -*- c++ -*-
00002 //
00003 // This program is free software; you can redistribute it and/or modify
00004 // it under the terms of the GNU General Public License as published by
00005 // the Free Software Foundation; either version 2 of the License, or
00006 // (at your option) any later version.
00007 //
00008 // This program is distributed in the hope that it will be useful,
00009 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00010 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011 // GNU General Public License for more details.
00012 //
00013 // You should have received a copy of the GNU General Public License
00014 // along with this program; if not, write to the Free Software
00015 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00016 //
00017 // This file is part of Depression Glass library.
00018 //
00019 // Copyright (c) 2002. Dimitry Kloper <kloper@users.sf.net> . 
00020 //
00021 // dgOptionFilter.h -- simple class which can separate command line 
00022 //                     options into sets
00023 //
00024 
00025 #ifndef _dgOptionFilter_h_
00026 #define _dgOptionFilter_h_
00027 
00033 #include <vector>
00034 
00035 namespace DGD {
00036 
00055 class option_filter {
00056    public:
00057       class option_set_type {
00058          public:
00059 
00060             int argc;
00061             char** argv;
00062 
00063             option_set_type() : argc(0), argv(NULL) {}
00064             option_set_type( int _argc, char** _argv ) {
00065                allocate( _argc );
00066                argc = _argc;
00067                std::copy( _argv, _argv+_argc, argv );
00068             }
00069 
00070             void allocate( int n ) {
00071                argc = n;
00072                argv = new char*[ argc + 1 ];
00073                std::fill( argv, argv + argc + 1, (char*)NULL );
00074             }
00075 
00076             ~option_set_type() {
00077                if( argv ) delete [] argv;
00078             }
00079       };
00080 
00081       typedef std::vector<option_set_type> option_set_container;
00082 
00083       option_set_container* operator () ( int argc, char** argv,
00084                                           int filtc, char** filtv );
00085 };
00086 
00087 }; // end of namespace DGD
00088 
00089 #endif /* _dgOptionFilter_h_ */
00090 
00091 /* 
00092  * Local Variables:
00093  * compile-command: "make dgOptionFilter.obj"
00094  * End:
00095  */
00096 
00097