io.cpp

   1 /***************************************************************************
   2                           main.cpp  -  description
   3                              -------------------
   4     begin                : Dom Oct 9 2005
   5     copyright            : (C) 2005 by Maurizio Monge
   6     email                : monge@linuz.sns.it
   7  ***************************************************************************/
   8
   9 /***************************************************************************
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  ***************************************************************************/
  17
  18 #include <stdarg.h>
  19 #include <string.h>
  20 #include "engine.h"
  21 #include "commands.h"
  22
  23 void Engine::output(const char* fmt, ...)
  24 {
  25     char buf[4096];
  26     int len;
  27     va_list va;
  28     va_start( va, fmt );
  29     len = MIN(vsnprintf( buf, 4096, fmt, va), 4096);
  30     va_end( va );
  31
  32     fwrite(buf, 1, len, stdout);
  33     if(log)
  34     {
  35         fwrite(buf, 1, len, log);
  36         fflush(log);
  37     }
  38 }
  39
  40 void Engine::process_input()
  41 {
  42     int argc = 0;
  43     char **argv;
  44     int retv = 0;
  45     Move mv;
  46
  47     argv = get_tokenized(&argc);
  48
  49     if(!argv)
  50         exit(0);
  51
  52 //     printf("%d arguments\n", argc);
  53 //     for(int i=0;i<argc;i++)
  54 //     printf("got \"%s\"\n", argv[i]);
  55
  56     if(!argc || strlen(argv[0])==0)
  57     {
  58         free(argv);
  59         return;
  60     }
  61
  62     /* is this a move? */
  63     retv = parse_move(&mv, argv[0]);
  64
  65     /* not a move */
  66     if(retv == 0)
  67     {
  68         CmdSet::iterator it = commands.lower_bound(argv[0]);
  69         if( it != commands.end() &&
  70                 it->first.compare(0, strlen(argv[0]), argv[0]) == 0 )
  71         {
  72             Cmd& c = it->second;
  73
  74             if(it->first != argv[0])
  75                 output("%s\n", it->first.c_str());
  76
  77             if(argc-1 < c.min())
  78                 output("Error, not enough arguments (%d) for command '%s' (try 'help')\n", argc-1, it->first.c_str() );
  79             else if(argc-1 > c.max())
  80                 output("Error, too many arguments (%d) for command '%s' (try 'help')\n", argc-1, it->first.c_str() );
  81             else
  82                 c.run(argc-1, argv+1);
  83         }
  84         else
  85             output("Illegal command: '%s' (try 'help')\n", argv[0]);
  86     }
  87     /* a legal valid move */
  88     else if(retv == 1)
  89     {
  90         if(!io_xboard)
  91             print_moves(&mv,1);
  92
  93         move(mv);
  94
  95         if(!io_xboard)
  96             print_board();
  97     }
  98     /* a move that is illegal or ambiguous */
  99     else if(retv == 2)
 100     {
 101
 102     }
 103
 104     free(argv);
 105 }