You might also like to look at extending the regexp syntax. This adds the new ( ... capture ... )\C{name} element to regular expression syntax. It copies the contents of the last closed capture into the scalar variable named 'name'. So /( [\dA-F]+ ) \C{ hex }/x would copy a hex string to the $hex variable.

use Regexp::NamedCaptures;

$_ = "three - four - five";
/(\w+)\C{baz} - (\w+)\C{qux}/g;

print "baz=$baz, qux=$qux\n";

[download]

Regexp::NamedCaptures
Updated: Changed the \N{ ... } to \C{ ... } to not conflict with named characters.
Also changed the return value of convert() so it returns the altered expression instead of the boolean result of the s///.

package Regexp::NamedCaptures;
use overload;

sub import
{
    shift;
    die "No argument allowed to " . __PACKAGE__ . "::import" if @_;
    overload::constant qr => \ &convert;
}

sub convert
{
    my $re = shift;
    $re =~ s( \\ ( \\ | C\{ (?>\s*) ((?>\w+)) (?>\s*) \} ) )
            {
                defined $2
                ? "(?{\$$2=\$^N})"
                : "\\"
            }xeg;
    $re;
}

1;

[download]

In reply to Re: RFC: named pattern match tokens by diotalevi
in thread RFC: named pattern match tokens by revdiablo

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.