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Cygwin: regex: convert wchar_t to wint_t throughout

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...and use __wcollate_range_cmp.  This will have to be tweaked further
when supporting collation symbols...

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2023-03-16 11:52:21 +01:00
parent 988c304ec2
commit 585e7f9891
3 changed files with 21 additions and 15 deletions
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2
winsup/cygwin/regex/engine.c
View File

@ -170,7 +170,7 @@ stepback(const char *start, const char *cur, int nchar)
if ((ret - mbc) < start)
return (NULL);
memset(&mbs, 0, sizeof(mbs));
clen = mbrtowc(NULL, ret - mbc, mbc, &mbs);
clen = mbrtowi(NULL, ret - mbc, mbc, &mbs);
if (clen != (size_t)-1 && clen != (size_t)-2)
break;
}

30
winsup/cygwin/regex/regcomp.c
View File

@ -57,7 +57,13 @@ __FBSDID("$FreeBSD$");
#include <wchar.h>
#include <wctype.h>
#ifndef LIBREGEX
/* We want the extensions implemented with LIBREGEX... */
#ifdef __CYGWIN__
#define LIBREGEX
#endif
/* ...but we also want to use the collation functions from nlsfuncs.cc. */
#if 1//ndef LIBREGEX
#include "collate.h"
#endif
@ -131,7 +137,7 @@ static void p_re(struct parse *p, int end1, int end2);
static bool p_simp_re(struct parse *p, struct branchc *bc);
static int p_count(struct parse *p);
static void p_bracket(struct parse *p);
static int p_range_cmp(wchar_t c1, wchar_t c2);
static int p_range_cmp(wint_t c1, wint_t c2);
static void p_b_term(struct parse *p, cset *cs);
static int p_b_pseudoclass(struct parse *p, char c);
static void p_b_cclass(struct parse *p, cset *cs);
@ -1058,13 +1064,13 @@ p_bracket(struct parse *p)
}
static int
p_range_cmp(wchar_t c1, wchar_t c2)
p_range_cmp(wint_t c1, wint_t c2)
{
#ifndef LIBREGEX
#if 1//ndef LIBREGEX
return __wcollate_range_cmp(c1, c2);
#else
/* Copied from libc/collate __wcollate_range_cmp */
wchar_t s1[2], s2[2];
wint_t s1[2], s2[2];
s1[0] = c1;
s1[1] = L'\0';
@ -1272,7 +1278,7 @@ p_b_coll_elem(struct parse *p,
const char *sp = p->next;
struct cname *cp;
mbstate_t mbs;
wchar_t wc;
wint_t wc;
size_t clen, len;
while (MORE() && !SEETWO(endc, ']'))
@ -1286,7 +1292,7 @@ p_b_coll_elem(struct parse *p,
if (strncmp(cp->name, sp, len) == 0 && strlen(cp->name) == len)
return(cp->code); /* known name */
memset(&mbs, 0, sizeof(mbs));
if ((clen = mbrtowc(&wc, sp, len, &mbs)) == len)
if ((clen = mbrtowi(&wc, sp, len, &mbs)) == len)
return (wc); /* single character */
else if (clen == (size_t)-1 || clen == (size_t)-2)
SETERROR(REG_ILLSEQ);
@ -1378,7 +1384,7 @@ bothcases(struct parse *p, wint_t ch)
assert(othercase(ch) != ch); /* p_bracket() would recurse */
p->next = bracket;
memset(&mbs, 0, sizeof(mbs));
n = wcrtomb(bracket, ch, &mbs);
n = wirtomb(bracket, ch, &mbs);
assert(n != (size_t)-1);
bracket[n] = ']';
bracket[n + 1] = '\0';
@ -1519,11 +1525,11 @@ static wint_t
wgetnext(struct parse *p)
{
mbstate_t mbs;
wchar_t wc;
wint_t wc;
size_t n;
memset(&mbs, 0, sizeof(mbs));
n = mbrtowc(&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) {
SETERROR(REG_ILLSEQ);
return (0);
@ -1871,7 +1877,7 @@ findmust(struct parse *p, struct re_guts *g)
memset(&mbs, 0, sizeof(mbs));
newstart = scan - 1;
}
clen = wcrtomb(buf, OPND(s), &mbs);
clen = wirtomb(buf, OPND(s), &mbs);
if (clen == (size_t)-1)
goto toohard;
newlen += clen;
@ -1994,7 +2000,7 @@ findmust(struct parse *p, struct re_guts *g)
while (cp < g->must + g->mlen) {
while (OP(s = *scan++) != OCHAR)
continue;
clen = wcrtomb(cp, OPND(s), &mbs);
clen = wirtomb(cp, OPND(s), &mbs);
assert(clen != (size_t)-1);
cp += clen;
}

4
winsup/cygwin/regex/regexec.c
View File

@ -67,9 +67,9 @@ static __inline size_t
xmbrtowc(wint_t *wi, const char *s, size_t n, mbstate_t *mbs, wint_t dummy)
{
size_t nr;
wchar_t wc;
wint_t wc;
nr = mbrtowc(&wc, s, n, mbs);
nr = mbrtowi(&wc, s, n, mbs);
if (wi != NULL)
*wi = wc;
if (nr == 0)