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| author | Jeffrey Friedl <jfriedl@regex.info> | 2000-07-16 10:55:29 -0700 |
|---|---|---|
| committer | Jarkko Hietaniemi <jhi@iki.fi> | 2000-08-18 21:07:06 +0000 |
| commit | aaa51d5e11b8b0db616a7f939c784733b4cfef87 (patch) | |
| tree | 5cc57e412e80d1006256d7edc7526dd927cbe2bd /pod/perlre.pod | |
| parent | 2a4ebaa641b7ba24b2dcfc940bb2b5da27d05b4e (diff) | |
| download | perl-aaa51d5e11b8b0db616a7f939c784733b4cfef87.tar.gz | |
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
Diffstat (limited to 'pod/perlre.pod')
| -rw-r--r-- | pod/perlre.pod | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/pod/perlre.pod b/pod/perlre.pod index c964be8b8f..fa4aad25fd 100644 --- a/pod/perlre.pod +++ b/pod/perlre.pod @@ -199,20 +199,26 @@ equivalents (if available) are as follows: alpha alnum ascii + blank [1] cntrl digit \d graph lower print punct - space \s + space \s [2] upper - word \w + word \w [3] xdigit + [1] A GNU extension equivalent to C<[ \t]>, `all horizontal whitespace'. + [2] Not I<exactly equivalent> to C<\s> since the C<[[:space:]]> includes + also the (very rare) `vertical tabulator', "\ck", chr(11). + [3] A Perl extension. + For example use C<[:upper:]> to match all the uppercase characters. -Note that the C<[]> are part of the C<[::]> construct, not part of the whole -character class. For example: +Note that the C<[]> are part of the C<[::]> construct, not part of the +whole character class. For example: [01[:alpha:]%] @@ -224,6 +230,7 @@ If the C<utf8> pragma is used, the following equivalences to Unicode alpha IsAlpha alnum IsAlnum ascii IsASCII + blank IsSpace cntrl IsCntrl digit IsDigit graph IsGraph @@ -238,8 +245,8 @@ If the C<utf8> pragma is used, the following equivalences to Unicode For example C<[:lower:]> and C<\p{IsLower}> are equivalent. If the C<utf8> pragma is not used but the C<locale> pragma is, the -classes correlate with the isalpha(3) interface (except for `word', -which is a Perl extension, mirroring C<\w>). +classes correlate with the usual isalpha(3) interface (except for +`word' and `blank'). The assumedly non-obviously named classes are: |