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| author | Zack Weinberg <zackw@panix.com> | 2017-04-01 12:42:41 -0400 |
|---|---|---|
| committer | Zack Weinberg <zackw@panix.com> | 2017-04-07 07:50:31 -0400 |
| commit | c1af8775f2de694bd567813af51164e2d978a78d (patch) | |
| tree | fb0696a62187bc79ad4ed5f3186c9d65389ad79a | |
| parent | 7a7be6c9a2a89ac5783d4f27d67b0fae3218228f (diff) | |
| download | glibc-c1af8775f2de694bd567813af51164e2d978a78d.zip glibc-c1af8775f2de694bd567813af51164e2d978a78d.tar.gz glibc-c1af8775f2de694bd567813af51164e2d978a78d.tar.bz2 | |
getopt: tidy up _getopt_initialize a bit
_getopt_data.__posixly_correct is completely redundant to
_getopt_data.__ordering, and some work that logically belongs in
_getopt_initialize was being done by _getopt_internal_r, making the
code harder to understand.
As a side effect, getenv will no longer be called if the first
character of the options string is '+' or '-', which is probably a
Good Thing. (Perhaps we should have a flag character that
specifically asks for the permutation behavior?)
* posix/getopt_int.h (_getopt_data): Remove __posixly_correct field.
* posix/getopt.c (_getopt_internal_r): Move some initialization code...
(_getopt_initialize): ...here. Don't set d->__posixly_correct.
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | posix/getopt.c | 18 | ||||
| -rw-r--r-- | posix/getopt_int.h | 4 |
3 files changed, 10 insertions, 16 deletions
@@ -1,5 +1,9 @@ 2017-04-07 Zack Weinberg <zackw@panix.com> + * posix/getopt_int.h (_getopt_data): Remove __posixly_correct field. + * posix/getopt.c (_getopt_internal_r): Move some initialization code... + (_getopt_initialize): ...here. Don't set d->__posixly_correct. + * posix/getopt.h: Add backup definition of __nonnull for consistency with gnulib. Define __getopt_argv_const to const if not already defined. diff --git a/posix/getopt.c b/posix/getopt.c index f54bc2d..609638c 100644 --- a/posix/getopt.c +++ b/posix/getopt.c @@ -188,15 +188,13 @@ _getopt_initialize (int argc, char **argv, const char *optstring, /* 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. */ + if (d->optind == 0) + d->optind = 1; d->__first_nonopt = d->__last_nonopt = d->optind; - d->__nextchar = NULL; - d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT"); - /* Determine how to handle the ordering of options and nonoptions. */ - if (optstring[0] == '-') { d->__ordering = RETURN_IN_ORDER; @@ -207,11 +205,12 @@ _getopt_initialize (int argc, char **argv, const char *optstring, d->__ordering = REQUIRE_ORDER; ++optstring; } - else if (d->__posixly_correct) + else if (posixly_correct || !!getenv ("POSIXLY_CORRECT")) d->__ordering = REQUIRE_ORDER; else d->__ordering = PERMUTE; + d->__initialized = 1; return optstring; } @@ -284,15 +283,10 @@ _getopt_internal_r (int argc, char **argv, const char *optstring, d->optarg = NULL; if (d->optind == 0 || !d->__initialized) - { - if (d->optind == 0) - d->optind = 1; /* Don't scan ARGV[0], the program name. */ - optstring = _getopt_initialize (argc, argv, optstring, d, - posixly_correct); - d->__initialized = 1; - } + optstring = _getopt_initialize (argc, argv, optstring, d, posixly_correct); else if (optstring[0] == '-' || optstring[0] == '+') optstring++; + if (optstring[0] == ':') print_errors = 0; diff --git a/posix/getopt_int.h b/posix/getopt_int.h index 762679a..6a02954 100644 --- a/posix/getopt_int.h +++ b/posix/getopt_int.h @@ -83,10 +83,6 @@ struct _getopt_data /* See __ord above. */ enum __ord __ordering; - /* True if behaving strictly as specified by POSIX. */ - int __posixly_correct; - - /* Handle permutation of arguments. */ /* Describe the part of ARGV that contains non-options that have |