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Diffstat (limited to 'posix')
-rw-r--r--posix/regex.c24
1 files changed, 8 insertions, 16 deletions
diff --git a/posix/regex.c b/posix/regex.c
index 1bd0191..16e91f1 100644
--- a/posix/regex.c
+++ b/posix/regex.c
@@ -4833,23 +4833,15 @@ re_match_2_internal (bufp, string1, size1, string2, size2, pos, regs, stop)
}
else if ((re_opcode_t) *p2 == charset)
{
- if ((re_opcode_t) p1[3] == exactn)
+ /* We win if the first character of the loop is not part
+ of the charset. */
+ if ((re_opcode_t) p1[3] == exactn
+ && ! ((int) p2[1] * BYTEWIDTH > (int) p1[5]
+ && (p2[2 + p1[5] / BYTEWIDTH]
+ & (1 << (p1[5] % BYTEWIDTH)))))
{
- 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;
- }
+ p[-3] = (unsigned char) pop_failure_jump;
+ DEBUG_PRINT1 (" No match => pop_failure_jump.\n");
}
else if ((re_opcode_t) p1[3] == charset_not)