Regexp::Common::list(3User Contributed Perl DocumentatiRegexp::Common::list(3)NAMERegexp::Common::list-- provide regexes for lists
SYNOPSIS
use Regexp::Common qw /list/;
while (<>) {
/$RE{list}{-pat => '\w+'}/ and print "List of words";
/$RE{list}{-pat => $RE{num}{real}}/ and print "List of numbers";
}
DESCRIPTION
Please consult the manual of Regexp::Common for a general description
of the works of this interface.
Do not use this module directly, but load it via Regexp::Common.
$RE{list}{-pat}{-sep}{-lastsep}
Returns a pattern matching a list of (at least two) substrings.
If "-pat=P" is specified, it defines the pattern for each substring in
the list. By default, P is "qr/.*?\S/". In Regexp::Common 0.02 or ear-
lier, the default pattern was "qr/.*?/". But that will match a single
space, causing unintended parsing of "a, b, and c" as a list of four
elements instead of 3 (with "-word" being "(?:and)"). One consequence
is that a list of the form "a,,b" will no longer be parsed. Use the
pattern "qr /.*?/" to be able to parse this, but see the previous
remark.
If "-sep=P" is specified, it defines the pattern P to be used as a sep-
arator between each pair of substrings in the list, except the final
two. By default P is "qr/\s*,\s*/".
If "-lastsep=P" is specified, it defines the pattern P to be used as a
separator between the final two substrings in the list. By default P
is the same as the pattern specified by the "-sep" flag.
For example:
$RE{list}{-pat=>'\w+'} # match a list of word chars
$RE{list}{-pat=>$RE{num}{real}} # match a list of numbers
$RE{list}{-sep=>"\t"} # match a tab-separated list
$RE{list}{-lastsep=>',\s+and\s+'} # match a proper English list
Under "-keep":
$1 captures the entire list
$2 captures the last separator
$RE{list}{conj}{-word=PATTERN}
An alias for $RE{list}{-lastsep=>'\s*,?\s*PATTERN\s*'}
If "-word" is not specified, the default pattern is "qr/and|or/".
For example:
$RE{list}{conj}{-word=>'et'} # match Jean, Paul, et Satre
$RE{list}{conj}{-word=>'oder'} # match Bonn, Koln oder Hamburg
$RE{list}{and}
An alias for $RE{list}{conj}{-word=>'and'}
$RE{list}{or}
An alias for $RE{list}{conj}{-word=>'or'}
HISTORY
$Log: list.pm,v $
Revision 2.103 2003/07/04 13:34:05 abigail
Fixed assignment to
Revision 2.102 2003/02/11 09:42:06 abigail
Added
Revision 2.101 2003/02/01 22:55:31 abigail
Changed Copyright years
Revision 2.100 2003/01/21 23:19:40 abigail
The whole world understands RCS/CVS version numbers, that 1.9 is an
older version than 1.10. Except CPAN. Curse the idiot(s) who think
that version numbers are floats (in which universe do floats have
more than one decimal dot?).
Everything is bumped to version 2.100 because CPAN couldn't deal
with the fact one file had version 1.10.
Revision 1.2 2002/08/05 12:16:59 abigail
Fixed 'Regex::' and 'Rexexp::' typos to 'Regexp::' (Found my Mike Castle).
Revision 1.1 2002/07/28 21:41:07 abigail
Split off from Regexp::Common.
SEE ALSO
Regexp::Common for a general description of how to use this interface.
AUTHOR
Damian Conway (damian@conway.org)
MAINTAINANCE
This package is maintained by Abigail (regexp-common@abigail.nl).
BUGS AND IRRITATIONS
Bound to be plenty.
For a start, there are many common regexes missing. Send them in to
regexp-common@abigail.nl.
COPYRIGHT
Copyright (c) 2001 - 2003, Damian Conway. All Rights Reserved.
This module is free software. It may be used, redistributed
and/or modified under the terms of the Perl Artistic License
(see http://www.perl.com/perl/misc/Artistic.html)
perl v5.8.8 2003-03-23 Regexp::Common::list(3)