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Add missing patch from r328240

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regcomp uses some libc internal collation bits that are not available in the
libregex context. It's easy enough to bring in the needed parts that can
work in a libregex world, so do so.

Pointy hat to:	me
This commit is contained in:
Kyle Evans 2018-01-22 02:58:33 +00:00
parent b37f6c9805
commit fe5bf674e6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=328241
1 changed files with 29 additions and 5 deletions
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34
lib/libc/regex/regcomp.c
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@ -57,7 +57,9 @@ __FBSDID("$FreeBSD$");
#include <wchar.h>
#include <wctype.h>
#ifndef LIBREGEX
#include "collate.h"
#endif
#include "utils.h"
#include "regex2.h"
@ -124,6 +126,7 @@ 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 void p_b_term(struct parse *p, cset *cs);
static void p_b_cclass(struct parse *p, cset *cs);
static void p_b_eclass(struct parse *p, cset *cs);
@ -904,6 +907,23 @@ p_bracket(struct parse *p)
EMIT(OANYOF, (int)(cs - p->g->sets));
}
static int
p_range_cmp(wchar_t c1, wchar_t c2)
{
#ifndef LIBREGEX
return __wcollate_range_cmp(c1, c2);
#else
/* Copied from libc/collate __wcollate_range_cmp */
wchar_t s1[2], s2[2];
s1[0] = c1;
s1[1] = L'\0';
s2[0] = c2;
s2[1] = L'\0';
return (wcscoll(s1, s2));
#endif
}
/*
- p_b_term - parse one term of a bracketed character list
== static void p_b_term(struct parse *p, cset *cs);
@ -914,9 +934,10 @@ p_b_term(struct parse *p, cset *cs)
char c;
wint_t start, finish;
wint_t i;
#ifndef LIBREGEX
struct xlocale_collate *table =
(struct xlocale_collate*)__get_locale()->components[XLC_COLLATE];
#endif
/* classify what we've got */
switch ((MORE()) ? PEEK() : '\0') {
case '[':
@ -963,15 +984,18 @@ p_b_term(struct parse *p, cset *cs)
if (start == finish)
CHadd(p, cs, start);
else {
#ifndef LIBREGEX
if (table->__collate_load_error || MB_CUR_MAX > 1) {
#else
if (MB_CUR_MAX > 1) {
#endif
(void)REQUIRE(start <= finish, REG_ERANGE);
CHaddrange(p, cs, start, finish);
} else {
(void)REQUIRE(__wcollate_range_cmp(start, finish) <= 0, REG_ERANGE);
(void)REQUIRE(p_range_cmp(start, finish) <= 0, REG_ERANGE);
for (i = 0; i <= UCHAR_MAX; i++) {
if ( __wcollate_range_cmp(start, i) <= 0
&& __wcollate_range_cmp(i, finish) <= 0
)
if (p_range_cmp(start, i) <= 0 &&
p_range_cmp(i, finish) <= 0 )
CHadd(p, cs, i);
}
}