XEmacs / lib-src / getopt1.c

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/* getopt_long and getopt_long_only entry points for GNU getopt.
   Copyright (C) 1987, 88, 89, 90, 91, 92, 1993, 1994
	Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the
   Free Software Foundation; either version 2, or (at your option) any
   later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

/* Synched up with: FSF 19.29. */

#if defined (emacs) || defined (CONFIG_BROKETS)
/* We use <config.h> instead of "config.h" so that a compilation
   using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
   (which it would do because it found this file in $srcdir).  */
#include <config.h>
#include "config.h"

/* This must be done before getopt.h is included so that the
   prototypes contained in it are also affected. */
#if !defined (__STDC__) || !__STDC__
/* This is a separate conditional since some stdc systems
   reject `defined (const)'.  */
#ifndef const
#define const

#include "getopt.h"

#include <stdio.h>

/* Comment out all this code if we are using the GNU C Library, and are not
   actually compiling the library itself.  This code is part of the GNU C
   Library, but also included in many other GNU distributions.  Compiling
   and linking in this code is a waste when using the GNU C library
   (especially if it is a shared library).  Rather than having every GNU
   program understand `configure --with-gnu-libc' and omit the object files,
   it is simpler to just do this in the source for each such file.  */

#if defined (_LIBC) || !defined (__GNU_LIBRARY__)

/* This needs to come after some library #include
   to get __GNU_LIBRARY__ defined.  */
#ifdef __GNU_LIBRARY__
#include <stdlib.h>
char *getenv ();

#ifndef	NULL
#define NULL 0

getopt_long (int argc, char *const *argv, const char *options,
	     const struct option *long_options, int *opt_index)
  return _getopt_internal (argc, argv, options, long_options, opt_index, 0);

/* Like getopt_long, but '-' as well as '--' can indicate a long option.
   If an option that starts with '-' (not '--') doesn't match a long option,
   but does match a short option, it is parsed as a short option
   instead.  */

getopt_long_only (argc, argv, options, long_options, opt_index)
     int argc;
     char *const *argv;
     const char *options;
     const struct option *long_options;
     int *opt_index;
  return _getopt_internal (argc, argv, options, long_options, opt_index, 1);

#endif	/* _LIBC or not __GNU_LIBRARY__.  */
#ifdef TEST

#include <stdio.h>

main (argc, argv)
     int argc;
     char **argv;
  int c;
  int digit_optind = 0;

  while (1)
      int this_option_optind = optind ? optind : 1;
      int option_index = 0;
      static struct option long_options[] =
	{"add", 1, 0, 0},
	{"append", 0, 0, 0},
	{"delete", 1, 0, 0},
	{"verbose", 0, 0, 0},
	{"create", 0, 0, 0},
	{"file", 1, 0, 0},
	{0, 0, 0, 0}

      c = getopt_long (argc, argv, "abc:d:0123456789",
		       long_options, &option_index);
      if (c == EOF)

      switch (c)
	case 0:
	  printf ("option %s", long_options[option_index].name);
	  if (optarg)
	    printf (" with arg %s", optarg);
	  printf ("\n");

	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':
	  if (digit_optind != 0 && digit_optind != this_option_optind)
	    printf ("digits occur in two different argv-elements.\n");
	  digit_optind = this_option_optind;
	  printf ("option %c\n", c);

	case 'a':
	  printf ("option a\n");

	case 'b':
	  printf ("option b\n");

	case 'c':
	  printf ("option c with value `%s'\n", optarg);

	case 'd':
	  printf ("option d with value `%s'\n", optarg);

	case '?':

	  printf ("?? getopt returned character code 0%o ??\n", c);

  if (optind < argc)
      printf ("non-option ARGV-elements: ");
      while (optind < argc)
	printf ("%s ", argv[optind++]);
      printf ("\n");

  exit (0);

#endif /* TEST */