Andreas J Koenig wrote in perl.unicode :
>>>>>> On Wed, 31 Dec 2003 16:21:36 +0100, Eric Cholet <[EMAIL PROTECTED]> said:
>
> > Can anyone enlighten me as to why \W behaves differently depending
> > on wether it's inside or outside of a character class, for certain
> > characters:
>
> I have reported this as bug 18281
>
> http://guest:[EMAIL PROTECTED]/rt3/Ticket/Display.html?id=18281
>
> I don't think that it is documented by now and I cannot spot a good
> place where it needs to be documented. perlre.pod and perlunicode.pod
> seem the natural places.
And apparently fixing it is not trivial.
Does something like this suit you ? This can at least make its way into
5.8.3.
Change 22031 by [EMAIL PROTECTED] on 2004/01/01 16:30:13
Document that /[\W]/ doesn't work, unicode-wise (see bug #18281)
Affected files ...
... //depot/perl/pod/perlunicode.pod#130 edit
Differences ...
==== //depot/perl/pod/perlunicode.pod#130 (text) ====
@@ -166,6 +166,10 @@
Unicode properties database. C<\w> can be used to match a Japanese
ideograph, for instance.
+(However, and as a limitation of the current implementation, using
+C<\w> or C<\W> I<inside> a C<[...]> character class will still match
+with byte semantics.)
+
=item *
Named Unicode properties, scripts, and block ranges may be used like
