Even sillier question: how do you tell?
Does that mean anything:
[gus@gusmac libraries]$ hexdump -C redcloth.rb | head
00000000 23 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |#
[PLUG] I just open it in jEdit and look at the buffer properties 
The dump show the first few characters (the hash mark followed by spaces
and the “vim…” macros) are ascii compliant (which doesn’t mean much,
as utf-8 is also compliant for chars in these range).
Looking at your error, this is the PUNCT regexp plus the chars {([
which appear at line 459 of RedCloth.rb. (which duh I should have looked
at your original post…).
In the regexp’s first line there is a character class which contains a
parenthesis
(^|\s|>|[#{PUNCT}{()
IIUC, the opening parenthesis is a simple character when inside the
character, but you can try escaping it:
(^|\s|>|[#{PUNCT}{()
If that doesn’t work, guess we’ll wait till _why wakes up