Cupcase() works even for non-letters, so there is no need to call Cupper().

diff --git a/lib/regex.c b/lib/regex.c
index dd08c499c25c403cf60a54d9f87a601b556dd845..2e9db4b7150ca56fab2de3fe3a153f78c2e37385 100644 (file)
--- a/lib/regex.c
+++ b/lib/regex.c
@@ -36,7 +36,7 @@ rx_compile(byte *p, int icase)
       r->buf.translate = xmalloc (CHAR_SET_SIZE);
       /* Map uppercase characters to corresponding lowercase ones.  */
       for (i = 0; i < CHAR_SET_SIZE; i++)
-        r->buf.translate[i] = Clower(i) ? Cupcase(i) : i;
+        r->buf.translate[i] = Cupcase(i);
     }
   else
     r->buf.translate = NULL;