Thanks. It's OK, I can use mutiple dots for now. I just wanted
to make sure that I didn't make a stupid mistake in
(?<=^.{2}).{4}
-Gregory
--- John Maddock
I'm trying to use lookbehind assertions, and here's a problem: the following syntax
(?<=^.{2}).{4}
gives me the error:
'(?<=^.{2}).{4}' is a bad regular expression: Unmatched [ or [^
while the following works:
(?<=^..).{4}
matching, as I expected, 4 characters after the first 2 characters in a line.
Shouldn't the above two regexes work the same way?
Probably, but the lookbehind assertion code is pretty dumb at present: it needs to be able to figure out exactly how many characters to look behind in advance, and currently bounded repeats aren't supported. It's probably not too hard to support that case, but it's too late for 1.33 I'm afraid.
John.
_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users
__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com