before changing it!
Copyright (C) 1987, 88, 89, 90, 91, 92, 1993
- Free Software Foundation, Inc.
+ 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
#include "config.h"
#endif
-#ifdef __GNUC__
+#if defined(__GNUC__) && !defined(alloca)
#define alloca __builtin_alloca
#else /* not __GNUC__ */
#if defined (HAVE_ALLOCA_H) || (defined(sparc) && (defined(sun) || (!defined(USG) && !defined(SVR4) && !defined(__svr4__))))
/* This needs to come after some library #include
to get __GNU_LIBRARY__ defined. */
-#ifdef __GNU_LIBRARY__
-#undef alloca
+#ifdef __GNU_LIBRARY__
+#undef alloca
/* Don't include stdlib.h for non-GNU C libraries because some of them
contain conflicting prototypes for getopt. */
#include <stdlib.h>
-#else /* Not GNU C library. */
-#define __alloca alloca
-#endif /* GNU C library. */
+#else /* Not GNU C library. */
+#define __alloca alloca
+#endif /* GNU C library. */
/* If GETOPT_COMPAT is defined, `+' as well as `--' can introduce a
long-named option. Because this is not POSIX.2 compliant, it is
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} ordering;
\f
-#ifdef __GNU_LIBRARY__
+#ifdef __GNU_LIBRARY__
/* We want to avoid inclusion of string.h with non-GNU libraries
because there are many ways it can cause trouble.
On some systems, it contains special magic macros that don't work
in GCC. */
#include <string.h>
-#define my_index strchr
-#define my_bcopy(src, dst, n) memcpy ((dst), (src), (n))
+#define my_index strchr
+#define my_bcopy(src, dst, n) memcpy ((dst), (src), (n))
#else
/* Avoid depending on library functions or files
while (*str)
{
if (*str == chr)
- return (char *) str;
+ return (char *) str;
str++;
}
return 0;
for (i = 0; i < size; i++)
to[i] = from[i];
}
-#endif /* GNU C library. */
+#endif /* GNU C library. */
\f
/* Handle permutation of arguments. */
my_bcopy ((char *) &argv[first_nonopt], (char *) temp, nonopts_size);
my_bcopy ((char *) &argv[last_nonopt], (char *) &argv[first_nonopt],
- (optind - last_nonopt) * sizeof (char *));
+ (optind - last_nonopt) * sizeof (char *));
my_bcopy ((char *) temp,
- (char *) &argv[first_nonopt + optind - last_nonopt],
- nonopts_size);
+ (char *) &argv[first_nonopt + optind - last_nonopt],
+ nonopts_size);
/* Update records for the slots the non-options now occupy. */
/* Determine how to handle the ordering of options and nonoptions. */
if (optstring[0] == '-')
- {
- ordering = RETURN_IN_ORDER;
- ++optstring;
- }
+ {
+ ordering = RETURN_IN_ORDER;
+ ++optstring;
+ }
else if (optstring[0] == '+')
- {
- ordering = REQUIRE_ORDER;
- ++optstring;
- }
+ {
+ ordering = REQUIRE_ORDER;
+ ++optstring;
+ }
else if (getenv ("POSIXLY_CORRECT") != NULL)
- ordering = REQUIRE_ORDER;
+ ordering = REQUIRE_ORDER;
else
- ordering = PERMUTE;
+ ordering = PERMUTE;
}
if (nextchar == NULL || *nextchar == '\0')
{
if (ordering == PERMUTE)
- {
- /* If we have just processed some options following some non-options,
- exchange them so that the options come first. */
+ {
+ /* If we have just processed some options following some non-options,
+ exchange them so that the options come first. */
- if (first_nonopt != last_nonopt && last_nonopt != optind)
- exchange ((char **) argv);
- else if (last_nonopt != optind)
- first_nonopt = optind;
+ if (first_nonopt != last_nonopt && last_nonopt != optind)
+ exchange ((char **) argv);
+ else if (last_nonopt != optind)
+ first_nonopt = optind;
- /* Now skip any additional non-options
- and extend the range of non-options previously skipped. */
+ /* Now skip any additional non-options
+ and extend the range of non-options previously skipped. */
- while (optind < argc
- && (argv[optind][0] != '-' || argv[optind][1] == '\0')
+ while (optind < argc
+ && (argv[optind][0] != '-' || argv[optind][1] == '\0')
#ifdef GETOPT_COMPAT
- && (longopts == NULL
- || argv[optind][0] != '+' || argv[optind][1] == '\0')
-#endif /* GETOPT_COMPAT */
- )
- optind++;
- last_nonopt = optind;
- }
+ && (longopts == NULL
+ || argv[optind][0] != '+' || argv[optind][1] == '\0')
+#endif /* GETOPT_COMPAT */
+ )
+ optind++;
+ last_nonopt = optind;
+ }
/* Special ARGV-element `--' means premature end of options.
- Skip it like a null option,
- then exchange with previous non-options as if it were an option,
- then skip everything else like a non-option. */
+ Skip it like a null option,
+ then exchange with previous non-options as if it were an option,
+ then skip everything else like a non-option. */
if (optind != argc && !strcmp (argv[optind], "--"))
- {
- optind++;
+ {
+ optind++;
- if (first_nonopt != last_nonopt && last_nonopt != optind)
- exchange ((char **) argv);
- else if (first_nonopt == last_nonopt)
- first_nonopt = optind;
- last_nonopt = argc;
+ if (first_nonopt != last_nonopt && last_nonopt != optind)
+ exchange ((char **) argv);
+ else if (first_nonopt == last_nonopt)
+ first_nonopt = optind;
+ last_nonopt = argc;
- optind = argc;
- }
+ optind = argc;
+ }
/* If we have done all the ARGV-elements, stop the scan
- and back over any non-options that we skipped and permuted. */
+ and back over any non-options that we skipped and permuted. */
if (optind == argc)
- {
- /* Set the next-arg-index to point at the non-options
- that we previously skipped, so the caller will digest them. */
- if (first_nonopt != last_nonopt)
- optind = first_nonopt;
- return EOF;
- }
+ {
+ /* Set the next-arg-index to point at the non-options
+ that we previously skipped, so the caller will digest them. */
+ if (first_nonopt != last_nonopt)
+ optind = first_nonopt;
+ return EOF;
+ }
/* If we have come to a non-option and did not permute it,
- either stop the scan or describe it to the caller and pass it by. */
+ either stop the scan or describe it to the caller and pass it by. */
if ((argv[optind][0] != '-' || argv[optind][1] == '\0')
#ifdef GETOPT_COMPAT
- && (longopts == NULL
- || argv[optind][0] != '+' || argv[optind][1] == '\0')
-#endif /* GETOPT_COMPAT */
- )
- {
- if (ordering == REQUIRE_ORDER)
- return EOF;
- optarg = argv[optind++];
- return 1;
- }
+ && (longopts == NULL
+ || argv[optind][0] != '+' || argv[optind][1] == '\0')
+#endif /* GETOPT_COMPAT */
+ )
+ {
+ if (ordering == REQUIRE_ORDER)
+ return EOF;
+ optarg = argv[optind++];
+ return 1;
+ }
/* We have found another option-ARGV-element.
- Start decoding its characters. */
+ Start decoding its characters. */
nextchar = (argv[optind] + 1
- + (longopts != NULL && argv[optind][1] == '-'));
+ + (longopts != NULL && argv[optind][1] == '-'));
}
if (longopts != NULL
&& ((argv[optind][0] == '-'
- && (argv[optind][1] == '-' || long_only))
+ && (argv[optind][1] == '-' || long_only))
#ifdef GETOPT_COMPAT
- || argv[optind][0] == '+'
-#endif /* GETOPT_COMPAT */
- ))
+ || argv[optind][0] == '+'
+#endif /* GETOPT_COMPAT */
+ ))
{
const struct option *p;
char *s = nextchar;
int indfound = 0 ;
while (*s && *s != '=')
- s++;
+ s++;
/* Test all options for either exact match or abbreviated matches. */
for (p = longopts, option_index = 0; p->name;
- p++, option_index++)
- if (!strncmp (p->name, nextchar, s - nextchar))
- {
- if ((size_t)(s - nextchar) == strlen (p->name))
- {
- /* Exact match found. */
- pfound = p;
- indfound = option_index;
- exact = 1;
- break;
- }
- else if (pfound == NULL)
- {
- /* First nonexact match found. */
- pfound = p;
- indfound = option_index;
- }
- else
- /* Second nonexact match found. */
- ambig = 1;
- }
+ p++, option_index++)
+ if (!strncmp (p->name, nextchar, s - nextchar))
+ {
+ if ((size_t)(s - nextchar) == strlen (p->name))
+ {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ }
+ else if (pfound == NULL)
+ {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ }
+ else
+ /* Second nonexact match found. */
+ ambig = 1;
+ }
if (ambig && !exact)
- {
- if (opterr)
- fprintf (stderr, "%s: option `%s' is ambiguous\n",
- argv[0], argv[optind]);
- nextchar += strlen (nextchar);
- optind++;
- return '?';
- }
+ {
+ if (opterr)
+ fprintf (stderr, "%s: option `%s' is ambiguous\n",
+ argv[0], argv[optind]);
+ nextchar += strlen (nextchar);
+ optind++;
+ return '?';
+ }
if (pfound != NULL)
- {
- option_index = indfound;
- optind++;
- if (*s)
- {
- /* Don't test has_arg with >, because some C compilers don't
- allow it to be used on enums. */
- if (pfound->has_arg)
- optarg = s + 1;
- else
- {
- if (opterr)
- {
- if (argv[optind - 1][1] == '-')
- /* --option */
- fprintf (stderr,
- "%s: option `--%s' doesn't allow an argument\n",
- argv[0], pfound->name);
- else
- /* +option or -option */
- fprintf (stderr,
- "%s: option `%c%s' doesn't allow an argument\n",
- argv[0], argv[optind - 1][0], pfound->name);
- }
- nextchar += strlen (nextchar);
- return '?';
- }
- }
- else if (pfound->has_arg == 1)
- {
- if (optind < argc)
- optarg = argv[optind++];
- else
- {
- if (opterr)
- fprintf (stderr, "%s: option `%s' requires an argument\n",
- argv[0], argv[optind - 1]);
- nextchar += strlen (nextchar);
- return optstring[0] == ':' ? ':' : '?';
- }
- }
- nextchar += strlen (nextchar);
- if (longind != NULL)
- *longind = option_index;
- if (pfound->flag)
- {
- *(pfound->flag) = pfound->val;
- return 0;
- }
- return pfound->val;
- }
+ {
+ option_index = indfound;
+ optind++;
+ if (*s)
+ {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if (pfound->has_arg)
+ optarg = s + 1;
+ else
+ {
+ if (opterr)
+ {
+ if (argv[optind - 1][1] == '-')
+ /* --option */
+ fprintf (stderr,
+ "%s: option `--%s' doesn't allow an argument\n",
+ argv[0], pfound->name);
+ else
+ /* +option or -option */
+ fprintf (stderr,
+ "%s: option `%c%s' doesn't allow an argument\n",
+ argv[0], argv[optind - 1][0], pfound->name);
+ }
+ nextchar += strlen (nextchar);
+ return '?';
+ }
+ }
+ else if (pfound->has_arg == 1)
+ {
+ if (optind < argc)
+ optarg = argv[optind++];
+ else
+ {
+ if (opterr)
+ fprintf (stderr, "%s: option `%s' requires an argument\n",
+ argv[0], argv[optind - 1]);
+ nextchar += strlen (nextchar);
+ return optstring[0] == ':' ? ':' : '?';
+ }
+ }
+ nextchar += strlen (nextchar);
+ if (longind != NULL)
+ *longind = option_index;
+ if (pfound->flag)
+ {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+ return pfound->val;
+ }
/* Can't find it as a long option. If this is not getopt_long_only,
- or the option starts with '--' or is not a valid short
- option, then it's an error.
- Otherwise interpret it as a short option. */
+ or the option starts with '--' or is not a valid short
+ option, then it's an error.
+ Otherwise interpret it as a short option. */
if (!long_only || argv[optind][1] == '-'
#ifdef GETOPT_COMPAT
- || argv[optind][0] == '+'
-#endif /* GETOPT_COMPAT */
- || my_index (optstring, *nextchar) == NULL)
- {
- if (opterr)
- {
- if (argv[optind][1] == '-')
- /* --option */
- fprintf (stderr, "%s: unrecognized option `--%s'\n",
- argv[0], nextchar);
- else
- /* +option or -option */
- fprintf (stderr, "%s: unrecognized option `%c%s'\n",
- argv[0], argv[optind][0], nextchar);
- }
- nextchar = (char *) "";
- optind++;
- return '?';
- }
+ || argv[optind][0] == '+'
+#endif /* GETOPT_COMPAT */
+ || my_index (optstring, *nextchar) == NULL)
+ {
+ if (opterr)
+ {
+ if (argv[optind][1] == '-')
+ /* --option */
+ fprintf (stderr, "%s: unrecognized option `--%s'\n",
+ argv[0], nextchar);
+ else
+ /* +option or -option */
+ fprintf (stderr, "%s: unrecognized option `%c%s'\n",
+ argv[0], argv[optind][0], nextchar);
+ }
+ nextchar = (char *) "";
+ optind++;
+ return '?';
+ }
}
/* Look at and handle the next option-character. */
if (temp == NULL || c == ':')
{
- if (opterr)
- {
+ if (opterr)
+ {
#if 0
- if (c < 040 || c >= 0177)
- fprintf (stderr, "%s: unrecognized option, character code 0%o\n",
- argv[0], c);
- else
- fprintf (stderr, "%s: unrecognized option `-%c'\n", argv[0], c);
+ if (c < 040 || c >= 0177)
+ fprintf (stderr, "%s: unrecognized option, character code 0%o\n",
+ argv[0], c);
+ else
+ fprintf (stderr, "%s: unrecognized option `-%c'\n", argv[0], c);
#else
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c);
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c);
#endif
- }
- optopt = c;
- return '?';
+ }
+ optopt = c;
+ return '?';
}
if (temp[1] == ':')
{
- if (temp[2] == ':')
- {
- /* This is an option that accepts an argument optionally. */
- if (*nextchar != '\0')
- {
- optarg = nextchar;
- optind++;
- }
- else
- optarg = 0;
- nextchar = NULL;
- }
- else
- {
- /* This is an option that requires an argument. */
- if (*nextchar != '\0')
- {
- optarg = nextchar;
- /* If we end this ARGV-element by taking the rest as an arg,
- we must advance to the next element now. */
- optind++;
- }
- else if (optind == argc)
- {
- if (opterr)
- {
+ if (temp[2] == ':')
+ {
+ /* This is an option that accepts an argument optionally. */
+ if (*nextchar != '\0')
+ {
+ optarg = nextchar;
+ optind++;
+ }
+ else
+ optarg = 0;
+ nextchar = NULL;
+ }
+ else
+ {
+ /* This is an option that requires an argument. */
+ if (*nextchar != '\0')
+ {
+ optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ optind++;
+ }
+ else if (optind == argc)
+ {
+ if (opterr)
+ {
#if 0
- fprintf (stderr, "%s: option `-%c' requires an argument\n",
- argv[0], c);
+ fprintf (stderr, "%s: option `-%c' requires an argument\n",
+ argv[0], c);
#else
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr, "%s: option requires an argument -- %c\n",
- argv[0], c);
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr, "%s: option requires an argument -- %c\n",
+ argv[0], c);
#endif
- }
- optopt = c;
- if (optstring[0] == ':')
- c = ':';
- else
- c = '?';
- }
- else
- /* We already incremented `optind' once;
- increment it again when taking next ARGV-elt as argument. */
- optarg = argv[optind++];
- nextchar = NULL;
- }
+ }
+ optopt = c;
+ if (optstring[0] == ':')
+ c = ':';
+ else
+ c = '?';
+ }
+ else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ optarg = argv[optind++];
+ nextchar = NULL;
+ }
}
return c;
}
const char *optstring)
{
return _getopt_internal (argc, argv, optstring,
- (const struct option *) 0,
- (int *) 0,
- 0);
+ (const struct option *) 0,
+ (int *) 0,
+ 0);
}
-#endif /* _LIBC or not __GNU_LIBRARY__. */
+#endif /* _LIBC or not __GNU_LIBRARY__. */
\f
#ifdef TEST
c = getopt (argc, argv, "abc:d:0123456789");
if (c == EOF)
- break;
+ break;
switch (c)
- {
- 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);
- break;
-
- case 'a':
- printf ("option a\n");
- break;
-
- case 'b':
- printf ("option b\n");
- break;
-
- case 'c':
- printf ("option c with value `%s'\n", optarg);
- break;
-
- case '?':
- break;
-
- default:
- printf ("?? getopt returned character code 0%o ??\n", c);
- }
+ {
+ 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);
+ break;
+
+ case 'a':
+ printf ("option a\n");
+ break;
+
+ case 'b':
+ printf ("option b\n");
+ break;
+
+ case 'c':
+ printf ("option c with value `%s'\n", optarg);
+ break;
+
+ case '?':
+ break;
+
+ default:
+ 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 ("%s ", argv[optind++]);
printf ("\n");
}
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