phpman > perldoc > Regexp::Common::list(3pm)

NAME
    Regexp::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 earlier, 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 separator 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'}

SEE ALSO
    Regexp::Common for a general description of how to use this interface.

AUTHOR
    Damian Conway (damian AT conway.org)

MAINTENANCE
    This package is maintained by Abigail (*regexp-common AT abigail.be*).

BUGS AND IRRITATIONS
    Bound to be plenty.

    For a start, there are many common regexes missing. Send them in to *regexp-common AT abigail.be*.

LICENSE and COPYRIGHT
    This software is Copyright (c) 2001 - 2017, Damian Conway and Abigail.

    This module is free software, and maybe used under any of the following licenses:

     1) The Perl Artistic License.     See the file COPYRIGHT.AL.
     2) The Perl Artistic License 2.0. See the file COPYRIGHT.AL2.
     3) The BSD License.               See the file COPYRIGHT.BSD.
     4) The MIT License.               See the file COPYRIGHT.MIT.