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-rw-r--r--posix/regex.c37
1 files changed, 17 insertions, 20 deletions
diff --git a/posix/regex.c b/posix/regex.c
index 99cf4c31a7..1bd01911f5 100644
--- a/posix/regex.c
+++ b/posix/regex.c
@@ -4833,26 +4833,23 @@ re_match_2_internal (bufp, string1, size1, string2, size2, pos, regs, stop)
}
else if ((re_opcode_t) *p2 == charset)
{
-#ifdef DEBUG
- register unsigned char c
- = *p2 == (unsigned char) endline ? '\n' : p2[2];
-#endif
-
-#if 0
- if ((re_opcode_t) p1[3] == exactn
- && ! ((int) p2[1] * BYTEWIDTH > (int) p1[5]
- && (p2[2 + p1[5] / BYTEWIDTH]
- & (1 << (p1[5] % BYTEWIDTH)))))
-#else
- if ((re_opcode_t) p1[3] == exactn
- && ! ((int) p2[1] * BYTEWIDTH > (int) p1[4]
- && (p2[2 + p1[4] / BYTEWIDTH]
- & (1 << (p1[4] % BYTEWIDTH)))))
-#endif
- {
- p[-3] = (unsigned char) pop_failure_jump;
- DEBUG_PRINT3 (" %c != %c => pop_failure_jump.\n",
- c, p1[5]);
+ if ((re_opcode_t) p1[3] == exactn)
+ {
+ unsigned char *p1end = &p1[5] + p1[4];
+ unsigned char *runp1 = &p1[5];
+
+ while (runp1 < p1end)
+ {
+ if ((int) p2[1] * BYTEWIDTH <= (int) *runp1
+ || (p2[2 + *runp1 / BYTEWIDTH]
+ & (1 << (*runp1 % BYTEWIDTH))) == 0)
+ {
+ p[-3] = (unsigned char) pop_failure_jump;
+ DEBUG_PRINT1 (" No match => pop_failure_jump.\n");
+ break;
+ }
+ ++runp1;
+ }
}
else if ((re_opcode_t) p1[3] == charset_not)