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Cygwin: regex: wgetnext: Re-add kludge to be more glibc compatible 

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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2023-03-16 12:44:32 +01:00
parent 585e7f9891
commit 0bdc764b42
1 changed files with 12 additions and 0 deletions
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12
winsup/cygwin/regex/regcomp.c
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@ -1528,6 +1528,18 @@ wgetnext(struct parse *p)
wint_t wc; wint_t wc;
size_t n; size_t n;
#ifdef __CYGWIN__
/* Kludge for more glibc compatibility. On Cygwin as well as on
Linux, mbrtowc returns -1 if the current local's codeset is ASCII
and the character is >= 0x80. Nevertheless, glibc's regcomp allows
any char value, even stuff like [\xc0-\xff], if the locale's codeset
is ASCII, so in regcomp it ignores the fact that chars >= 0x80 are
invalid ASCII chars. To be more Linux-compatible, we align the
behaviour to glibc here. Allow any character value if the current
local's codeset is ASCII. */
if (*__current_locale_charset () == 'A') /* SCII */
return (wint_t) (unsigned char) *p->next++;
#endif
memset(&mbs, 0, sizeof(mbs)); memset(&mbs, 0, sizeof(mbs));
n = mbrtowi(&wc, p->next, p->end - p->next, &mbs); n = mbrtowi(&wc, p->next, p->end - p->next, &mbs);
if (n == (size_t)-1 || n == (size_t)-2) { if (n == (size_t)-1 || n == (size_t)-2) {