src/yes.c

   1 /* yes - output a string repeatedly until killed
   2    Copyright (C) 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 /* David MacKenzie <djm@gnu.ai.mit.edu> */
  19
  20 #include <config.h>
  21 #include <stdio.h>
  22 #include <getopt.h>
  23
  24 #include "system.h"
  25 #include "long-options.h"
  26
  27 /* The name this program was run with. */
  28 char *program_name;
  29
  30 static void
  31 usage (int status)
  32 {
  33   if (status != 0)
  34     fprintf (stderr, _("Try `%s --help' for more information.\n"),
  35              program_name);
  36   else
  37     {
  38       printf (_("Usage: %s [OPTION]... [STRING]...\n"), program_name);
  39       printf (_("\
  40 Repeatedly output a line with all specified STRING(s), or `y'.\n\
  41 \n\
  42   --help      display this help and exit\n\
  43   --version   output version information and exit\n"));
  44     }
  45   exit (status);
  46 }
  47
  48 int
  49 main (int argc, char **argv)
  50 {
  51   program_name = argv[0];
  52   setlocale (LC_ALL, "");
  53   bindtextdomain (PACKAGE, LOCALEDIR);
  54   textdomain (PACKAGE);
  55
  56   parse_long_options (argc, argv, "yes", PACKAGE_VERSION, usage);
  57
  58   if (argc == 1)
  59     while (1)
  60       puts ("y");
  61
  62   while (1)
  63     {
  64       int i;
  65
  66       for (i = 1; i < argc; i++)
  67         {
  68           fputs (argv[i], stdout);
  69           putchar (i == argc - 1 ? '\n' : ' ');
  70         }
  71     }
  72 }