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OpenCOBOL 1.1pre-rel
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|
OpenCOBOL 1.1pre-rel
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Go to the source code of this file.
Defines | |
| #define | _NO_PROTO |
| #define | const |
| #define | GETOPT_INTERFACE_VERSION 2 |
| #define | _(msgid) (msgid) |
| #define | attribute_hidden |
| #define | SWAP_FLAGS(ch1, ch2) |
| #define | NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0') |
Enumerations | |
| enum | { REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER } |
Functions | |
| char * | getenv () |
| static char * | my_index (char *str, int chr) const |
| static void | exchange (char **argv) |
| static const char * | _getopt_initialize (int argc, char *const *argv, const char *optstring) |
| int | _getopt_internal (int argc, char *const *argv, const char *optstring, const struct option *longopts, int *longind, int long_only) |
| int | getopt (int argc, char *const *argv, const char *optstring) |
Variables | |
| char * | optarg |
| int | optind = 1 |
| int __getopt_initialized | attribute_hidden |
| static char * | nextchar |
| int | opterr = 1 |
| int | optopt = '?' |
| static enum { ... } | ordering |
| static char * | posixly_correct |
| static int | first_nonopt |
| static int | last_nonopt |
| #define attribute_hidden |
| anonymous enum |
| static const char* _getopt_initialize | ( | int | argc, |
| char *const * | argv, | ||
| const char * | optstring | ||
| ) | [static] |
Definition at line 393 of file getopt.c.
{
/* Start processing options with ARGV-element 1 (since ARGV-element 0
is the program name); the sequence of previously skipped
non-option ARGV-elements is empty. */
first_nonopt = last_nonopt = optind;
nextchar = NULL;
posixly_correct = getenv ("POSIXLY_CORRECT");
/* Determine how to handle the ordering of options and nonoptions. */
if (optstring[0] == '-')
{
ordering = RETURN_IN_ORDER;
++optstring;
}
else if (optstring[0] == '+')
{
ordering = REQUIRE_ORDER;
++optstring;
}
else if (posixly_correct != NULL)
ordering = REQUIRE_ORDER;
else
ordering = PERMUTE;
#if defined _LIBC && defined USE_NONOPTION_FLAGS
if (posixly_correct == NULL
&& argc == __libc_argc && argv == __libc_argv)
{
if (nonoption_flags_max_len == 0)
{
if (__getopt_nonoption_flags == NULL
|| __getopt_nonoption_flags[0] == '\0')
nonoption_flags_max_len = -1;
else
{
const char *orig_str = __getopt_nonoption_flags;
int len = nonoption_flags_max_len = strlen (orig_str);
if (nonoption_flags_max_len < argc)
nonoption_flags_max_len = argc;
__getopt_nonoption_flags =
(char *) malloc (nonoption_flags_max_len);
if (__getopt_nonoption_flags == NULL)
nonoption_flags_max_len = -1;
else
memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
'\0', nonoption_flags_max_len - len);
}
}
nonoption_flags_len = nonoption_flags_max_len;
}
else
nonoption_flags_len = 0;
#endif
return optstring;
}
| int _getopt_internal | ( | int | argc, |
| char *const * | argv, | ||
| const char * | optstring, | ||
| const struct option * | longopts, | ||
| int * | longind, | ||
| int | long_only | ||
| ) |
Definition at line 515 of file getopt.c.
{
int print_errors = opterr;
if (optstring[0] == ':')
print_errors = 0;
if (argc < 1)
return -1;
optarg = NULL;
if (optind == 0 || !__getopt_initialized)
{
if (optind == 0)
optind = 1; /* Don't scan ARGV[0], the program name. */
optstring = _getopt_initialize (argc, argv, optstring);
__getopt_initialized = 1;
}
/* Test whether ARGV[optind] points to a non-option argument.
Either it does not have option syntax, or there is an environment flag
from the shell indicating it is not an option. The later information
is only used when the used in the GNU libc. */
#if defined _LIBC && defined USE_NONOPTION_FLAGS
# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
|| (optind < nonoption_flags_len \
&& __getopt_nonoption_flags[optind] == '1'))
#else
# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
#endif
if (nextchar == NULL || *nextchar == '\0')
{
/* Advance to the next ARGV-element. */
/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
moved back by the user (who may also have changed the arguments). */
if (last_nonopt > optind)
last_nonopt = optind;
if (first_nonopt > optind)
first_nonopt = optind;
if (ordering == PERMUTE)
{
/* 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;
/* Skip any additional non-options
and extend the range of non-options previously skipped. */
while (optind < argc && NONOPTION_P)
optind++;
last_nonopt = optind;
}
/* The 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. */
if (optind != argc && !strcmp (argv[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;
optind = argc;
}
/* If we have done all the ARGV-elements, stop the scan
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 -1;
}
/* 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. */
if (NONOPTION_P)
{
if (ordering == REQUIRE_ORDER)
return -1;
optarg = argv[optind++];
return 1;
}
/* We have found another option-ARGV-element.
Skip the initial punctuation. */
nextchar = (argv[optind] + 1
+ (longopts != NULL && argv[optind][1] == '-'));
}
/* Decode the current option-ARGV-element. */
/* Check whether the ARGV-element is a long option.
If long_only and the ARGV-element has the form "-f", where f is
a valid short option, don't consider it an abbreviated form of
a long option that starts with f. Otherwise there would be no
way to give the -f short option.
On the other hand, if there's a long option "fubar" and
the ARGV-element is "-fu", do consider that an abbreviation of
the long option, just like "--fu", and not "-f" with arg "u".
This distinction seems to be the most useful approach. */
if (longopts != NULL
&& (argv[optind][1] == '-'
|| (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
{
char *nameend;
const struct option *p;
const struct option *pfound = NULL;
int exact = 0;
int ambig = 0;
int indfound = -1;
int option_index;
for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
/* Do nothing. */ ;
/* Test all long options for either exact match
or abbreviated matches. */
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!strncmp (p->name, nextchar, nameend - nextchar))
{
if ((unsigned int) (nameend - nextchar)
== (unsigned int) 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 if (long_only
|| pfound->has_arg != p->has_arg
|| pfound->flag != p->flag
|| pfound->val != p->val)
/* Second or later nonexact match found. */
ambig = 1;
}
if (ambig && !exact)
{
if (print_errors)
{
#if defined _LIBC && defined USE_IN_LIBIO
char *buf;
if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"),
argv[0], argv[optind]) >= 0)
{
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s", buf);
else
fputs (buf, stderr);
free (buf);
}
#else
fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
argv[0], argv[optind]);
#endif
}
nextchar += strlen (nextchar);
optind++;
optopt = 0;
return '?';
}
if (pfound != NULL)
{
option_index = indfound;
optind++;
if (*nameend)
{
/* Don't test has_arg with >, because some C compilers don't
allow it to be used on enums. */
if (pfound->has_arg)
optarg = nameend + 1;
else
{
if (print_errors)
{
#if defined _LIBC && defined USE_IN_LIBIO
char *buf;
int n;
#endif
if (argv[optind - 1][1] == '-')
{
/* --option */
#if defined _LIBC && defined USE_IN_LIBIO
n = __asprintf (&buf, _("\
%s: option `--%s' doesn't allow an argument\n"),
argv[0], pfound->name);
#else
fprintf (stderr, _("\
%s: option `--%s' doesn't allow an argument\n"),
argv[0], pfound->name);
#endif
}
else
{
/* +option or -option */
#if defined _LIBC && defined USE_IN_LIBIO
n = __asprintf (&buf, _("\
%s: option `%c%s' doesn't allow an argument\n"),
argv[0], argv[optind - 1][0],
pfound->name);
#else
fprintf (stderr, _("\
%s: option `%c%s' doesn't allow an argument\n"),
argv[0], argv[optind - 1][0], pfound->name);
#endif
}
#if defined _LIBC && defined USE_IN_LIBIO
if (n >= 0)
{
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s", buf);
else
fputs (buf, stderr);
free (buf);
}
#endif
}
nextchar += strlen (nextchar);
optopt = pfound->val;
return '?';
}
}
else if (pfound->has_arg == 1)
{
if (optind < argc)
optarg = argv[optind++];
else
{
if (print_errors)
{
#if defined _LIBC && defined USE_IN_LIBIO
char *buf;
if (__asprintf (&buf, _("\
%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]) >= 0)
{
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s", buf);
else
fputs (buf, stderr);
free (buf);
}
#else
fprintf (stderr,
_("%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]);
#endif
}
nextchar += strlen (nextchar);
optopt = pfound->val;
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. */
if (!long_only || argv[optind][1] == '-'
|| my_index (optstring, *nextchar) == NULL)
{
if (print_errors)
{
#if defined _LIBC && defined USE_IN_LIBIO
char *buf;
int n;
#endif
if (argv[optind][1] == '-')
{
/* --option */
#if defined _LIBC && defined USE_IN_LIBIO
n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"),
argv[0], nextchar);
#else
fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
argv[0], nextchar);
#endif
}
else
{
/* +option or -option */
#if defined _LIBC && defined USE_IN_LIBIO
n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"),
argv[0], argv[optind][0], nextchar);
#else
fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
argv[0], argv[optind][0], nextchar);
#endif
}
#if defined _LIBC && defined USE_IN_LIBIO
if (n >= 0)
{
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s", buf);
else
fputs (buf, stderr);
free (buf);
}
#endif
}
nextchar = (char *) "";
optind++;
optopt = 0;
return '?';
}
}
/* Look at and handle the next short option-character. */
{
char c = *nextchar++;
char *temp = my_index (optstring, c);
/* Increment `optind' when we start to process its last character. */
if (*nextchar == '\0')
++optind;
if (temp == NULL || c == ':')
{
if (print_errors)
{
#if defined _LIBC && defined USE_IN_LIBIO
char *buf;
int n;
#endif
if (posixly_correct)
{
/* 1003.2 specifies the format of this message. */
#if defined _LIBC && defined USE_IN_LIBIO
n = __asprintf (&buf, _("%s: illegal option -- %c\n"),
argv[0], c);
#else
fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
#endif
}
else
{
#if defined _LIBC && defined USE_IN_LIBIO
n = __asprintf (&buf, _("%s: invalid option -- %c\n"),
argv[0], c);
#else
fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c);
#endif
}
#if defined _LIBC && defined USE_IN_LIBIO
if (n >= 0)
{
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s", buf);
else
fputs (buf, stderr);
free (buf);
}
#endif
}
optopt = c;
return '?';
}
/* Convenience. Treat POSIX -W foo same as long option --foo */
if (temp[0] == 'W' && temp[1] == ';')
{
char *nameend;
const struct option *p;
const struct option *pfound = NULL;
int exact = 0;
int ambig = 0;
int indfound = 0;
int option_index;
/* 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 (print_errors)
{
/* 1003.2 specifies the format of this message. */
#if defined _LIBC && defined USE_IN_LIBIO
char *buf;
if (__asprintf (&buf,
_("%s: option requires an argument -- %c\n"),
argv[0], c) >= 0)
{
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s", buf);
else
fputs (buf, stderr);
free (buf);
}
#else
fprintf (stderr, _("%s: option requires an argument -- %c\n"),
argv[0], c);
#endif
}
optopt = c;
if (optstring[0] == ':')
c = ':';
else
c = '?';
return c;
}
else
/* We already incremented `optind' once;
increment it again when taking next ARGV-elt as argument. */
optarg = argv[optind++];
/* optarg is now the argument, see if it's in the
table of longopts. */
for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
/* Do nothing. */ ;
/* Test all long options for either exact match
or abbreviated matches. */
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!strncmp (p->name, nextchar, nameend - nextchar))
{
if ((unsigned int) (nameend - 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 or later nonexact match found. */
ambig = 1;
}
if (ambig && !exact)
{
if (print_errors)
{
#if defined _LIBC && defined USE_IN_LIBIO
char *buf;
if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"),
argv[0], argv[optind]) >= 0)
{
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s", buf);
else
fputs (buf, stderr);
free (buf);
}
#else
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
argv[0], argv[optind]);
#endif
}
nextchar += strlen (nextchar);
optind++;
return '?';
}
if (pfound != NULL)
{
option_index = indfound;
if (*nameend)
{
/* Don't test has_arg with >, because some C compilers don't
allow it to be used on enums. */
if (pfound->has_arg)
optarg = nameend + 1;
else
{
if (print_errors)
{
#if defined _LIBC && defined USE_IN_LIBIO
char *buf;
if (__asprintf (&buf, _("\
%s: option `-W %s' doesn't allow an argument\n"),
argv[0], pfound->name) >= 0)
{
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s", buf);
else
fputs (buf, stderr);
free (buf);
}
#else
fprintf (stderr, _("\
%s: option `-W %s' doesn't allow an argument\n"),
argv[0], pfound->name);
#endif
}
nextchar += strlen (nextchar);
return '?';
}
}
else if (pfound->has_arg == 1)
{
if (optind < argc)
optarg = argv[optind++];
else
{
if (print_errors)
{
#if defined _LIBC && defined USE_IN_LIBIO
char *buf;
if (__asprintf (&buf, _("\
%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]) >= 0)
{
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s", buf);
else
fputs (buf, stderr);
free (buf);
}
#else
fprintf (stderr,
_("%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]);
#endif
}
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;
}
nextchar = NULL;
return 'W'; /* Let the application handle it. */
}
if (temp[1] == ':')
{
if (temp[2] == ':')
{
/* This is an option that accepts an argument optionally. */
if (*nextchar != '\0')
{
optarg = nextchar;
optind++;
}
else
optarg = NULL;
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 (print_errors)
{
/* 1003.2 specifies the format of this message. */
#if defined _LIBC && defined USE_IN_LIBIO
char *buf;
if (__asprintf (&buf, _("\
%s: option requires an argument -- %c\n"),
argv[0], c) >= 0)
{
if (_IO_fwide (stderr, 0) > 0)
__fwprintf (stderr, L"%s", buf);
else
fputs (buf, stderr);
free (buf);
}
#else
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;
}
}
return c;
}
}
| static void exchange | ( | char ** | argv | ) | [static] |
Definition at line 308 of file getopt.c.
{
int bottom = first_nonopt;
int middle = last_nonopt;
int top = optind;
char *tem;
/* Exchange the shorter segment with the far end of the longer segment.
That puts the shorter segment into the right place.
It leaves the longer segment in the right place overall,
but it consists of two parts that need to be swapped next. */
#if defined _LIBC && defined USE_NONOPTION_FLAGS
/* First make sure the handling of the `__getopt_nonoption_flags'
string can work normally. Our top argument must be in the range
of the string. */
if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
{
/* We must extend the array. The user plays games with us and
presents new arguments. */
char *new_str = malloc (top + 1);
if (new_str == NULL)
nonoption_flags_len = nonoption_flags_max_len = 0;
else
{
memset (__mempcpy (new_str, __getopt_nonoption_flags,
nonoption_flags_max_len),
'\0', top + 1 - nonoption_flags_max_len);
nonoption_flags_max_len = top + 1;
__getopt_nonoption_flags = new_str;
}
}
#endif
while (top > middle && middle > bottom)
{
if (top - middle > middle - bottom)
{
/* Bottom segment is the short one. */
int len = middle - bottom;
register int i;
/* Swap it with the top part of the top segment. */
for (i = 0; i < len; i++)
{
tem = argv[bottom + i];
argv[bottom + i] = argv[top - (middle - bottom) + i];
argv[top - (middle - bottom) + i] = tem;
SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
}
/* Exclude the moved bottom segment from further swapping. */
top -= len;
}
else
{
/* Top segment is the short one. */
int len = top - middle;
register int i;
/* Swap it with the bottom part of the bottom segment. */
for (i = 0; i < len; i++)
{
tem = argv[bottom + i];
argv[bottom + i] = argv[middle + i];
argv[middle + i] = tem;
SWAP_FLAGS (bottom + i, middle + i);
}
/* Exclude the moved top segment from further swapping. */
bottom += len;
}
}
/* Update records for the slots the non-options now occupy. */
first_nonopt += (optind - last_nonopt);
last_nonopt = optind;
}
| char* getenv | ( | ) |
| int getopt | ( | int | argc, |
| char *const * | argv, | ||
| const char * | optstring | ||
| ) |
Definition at line 1196 of file getopt.c.
{
return _getopt_internal (argc, argv, optstring,
(const struct option *) 0,
(int *) 0,
0);
}
| static char* my_index | ( | char * | str, |
| int | chr | ||
| ) | const [static] |
| int __getopt_initialized attribute_hidden |
int first_nonopt [static] |
int last_nonopt [static] |
enum { ... } ordering [static] |
char* posixly_correct [static] |
1.7.4
