Add [[:blank:]] as suggested in
authorJeffrey Friedl <jfriedl@regex.info>
Sun, 16 Jul 2000 17:55:29 +0000 (10:55 -0700)
committerJarkko Hietaniemi <jhi@iki.fi>
Fri, 18 Aug 2000 21:07:06 +0000 (21:07 +0000)
commitaaa51d5e11b8b0db616a7f939c784733b4cfef87
tree5cc57e412e80d1006256d7edc7526dd927cbe2bd
parent2a4ebaa641b7ba24b2dcfc940bb2b5da27d05b4e
Add [[:blank:]] as suggested in

Subject: [ID 20000716.024] [=cc=] / [:blank:]
Message-Id: <200007170055.RAA23528@fummy.dsl.yahoo.com>

(the [=cc=] has already been taken care of by #6439
 so the whole bug report can be closed)

and make [[:space:]] to be equivalent to isspace(3)
(as opposed to \s, which is isSPACE()).  The difference
is that now [[:space:]] matches the mythical vertical tab,
while \s doesn't.

p4raw-id: //depot/perl@6703
handy.h
pod/perlre.pod
pod/perlretut.pod
regcomp.c
regcomp.h
regexec.c
t/op/pat.t