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Cygwin: fnmatch: handle equivalence class expressions 

Handle [=x=] expressions in range brackets.  Use the new
is_unicode_equiv() function to perform the check.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2023-02-15 22:31:49 +01:00
parent b5f9b0241a
commit 20162667de
1 changed files with 11 additions and 2 deletions
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13
winsup/cygwin/libc/fnmatch.c
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@ -284,16 +284,25 @@ rangematch(const char *pattern, wint_t test, int flags, char **newp,
++pattern;
if (!*pattern)
return (RANGE_ERROR);
if (ctype == ':') {
if (ctype == ':') { /* named character class */
size_t clen = pattern - class_p;
char class[clen + 1];
*stpncpy (class, class_p, clen) = '\0';
if (iswctype (test, wctype (class)))
ok = 1;
} else if (ctype == '=') { /* equivalence class */
size_t elen = pattern - class_p;
char equiv[elen + 1];
wint_t eqv;
*stpncpy (equiv, class_p, elen) = '\0';
if (mbrtowi(&eqv, equiv, elen, patmbs) == elen
&& is_unicode_equiv (test, eqv))
ok = 1;
}
/* TODO: [. is just ignored for now */
pattern += 2;
/* TODO: [. and [= are just ignored for now */
continue;
}