regcomp.c: When inverting a [], adjust bit count

When one complements every bit, the count of those that are set should
be complemented as well.

1 files changed, 3 insertions, 0 deletions

diff --git a/regcomp.c b/regcomp.c
index e450ec2dde..0e3f6ba3d1 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -8933,6 +8933,9 @@ parseit:
     if ((ANYOF_FLAGS(ret) & ANYOF_FLAGS_ALL) == ANYOF_INVERT) {
 	for (value = 0; value < ANYOF_BITMAP_SIZE; ++value)
 	    ANYOF_BITMAP(ret)[value] ^= 0xFF;
+	stored = 256 - stored;
+
+	/* The inversion means that everything above 255 is matched */
 	ANYOF_FLAGS(ret) = ANYOF_UTF8|ANYOF_UNICODE_ALL;
     }