commands/terminal.c

   1 /* terminal.c - command to show and select a terminal */
   2 /*
   3  *  PUPA  --  Preliminary Universal Programming Architecture for GRUB
   4  *  Copyright (C) 2003  Free Software Foundation, Inc.
   5  *
   6  *  PUPA is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with PUPA; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include <pupa/normal.h>
  22 #include <pupa/dl.h>
  23 #include <pupa/arg.h>
  24 #include <pupa/misc.h>
  25 #include <pupa/term.h>
  26
  27 static pupa_err_t
  28 pupa_cmd_terminal (struct pupa_arg_list *state __attribute__ ((unused)),
  29                    int argc, char **args)
  30 {
  31   pupa_term_t term = 0;
  32
  33   auto int print_terminal (pupa_term_t);
  34   auto int find_terminal (pupa_term_t);
  35
  36   int print_terminal (pupa_term_t t)
  37     {
  38       pupa_printf (" %s", t->name);
  39       return 0;
  40     }
  41
  42   int find_terminal (pupa_term_t t)
  43     {
  44       if (pupa_strcmp (t->name, args[0]) == 0)
  45         {
  46           term = t;
  47           return 1;
  48         }
  49
  50       return 0;
  51     }
  52
  53   if (argc == 0)
  54     {
  55       pupa_printf ("Available terminal(s):");
  56       pupa_term_iterate (print_terminal);
  57       pupa_putchar ('\n');
  58
  59       pupa_printf ("Current terminal: %s\n", pupa_term_get_current ()->name);
  60     }
  61   else
  62     {
  63       pupa_term_iterate (find_terminal);
  64       if (! term)
  65         return pupa_error (PUPA_ERR_BAD_ARGUMENT, "no such terminal");
  66
  67       pupa_term_set_current (term);
  68     }
  69
  70   return PUPA_ERR_NONE;
  71 }
  72
  73 \f
  74 #ifdef PUPA_UTIL
  75 void
  76 pupa_terminal_init (void)
  77 {
  78   pupa_register_command ("terminal", pupa_cmd_terminal, PUPA_COMMAND_FLAG_BOTH,
  79                          "terminal [TERM...]", "Select a terminal.", 0);
  80 }
  81
  82 void
  83 pupa_terminal_fini (void)
  84 {
  85   pupa_unregister_command ("terminal");
  86 }
  87 #else /* ! PUPA_UTIL */
  88 PUPA_MOD_INIT
  89 {
  90   (void)mod;                    /* To stop warning. */
  91   pupa_register_command ("terminal", pupa_cmd_terminal, PUPA_COMMAND_FLAG_BOTH,
  92                          "terminal [TERM...]", "Select a terminal.", 0);
  93 }
  94
  95 PUPA_MOD_FINI
  96 {
  97   pupa_unregister_command ("terminal");
  98 }
  99 #endif /* ! PUPA_UTIL */