bug#4209: 23.1; Emacs 23.1 regression in re-search-forward

[Kenichi Handa]

In article <tl7my00w6tw.fsf@m17n.org>, Kenichi Handa <handa@m17n.org> writes:

> In article <87ljfkha9i.fsf@stupidchicken.com>, Chong Yidong 
> <cyd@stupidchicken.com> writes:
> > Hi Handa-san,
> > Could you try to investigate Bug#4209?

> Ok, I'll work on it.

I fixed it as below.

=== modified file 'src/regex.c'
--- src/regex.c 2010-01-13 08:35:10 +0000
+++ src/regex.c 2010-01-27 03:57:03 +0000
@@ -4083,8 +4083,7 @@
                     the corresponding multibyte character.  */
                  int c = RE_CHAR_TO_MULTIBYTE (p[1]);
 
-                 if (! CHAR_BYTE8_P (c))
-                   fastmap[CHAR_LEADING_CODE (c)] = 1;
+                 fastmap[CHAR_LEADING_CODE (c)] = 1;
                }
            }
          break;

But, first of all, I don't know (remember) why there was this check:

   if (! CHAR_BYTE8_P (c))

I may have overlooked something.  Stefan, could you please
confirm that the above change is correct?

---
Kenichi Handa
handa@m17n.org