Hi Everyone,

I have a problem assigning a varable when using (?{}) inside of a regex. When I run the code below I receive this error: 

Sunrise is:03:12Sunset is:21:08
Use of uninitialized value in print at D:\scripts\reg.pl line 7, <DATA
+> line 2.
Use of uninitialized value in print at D:\scripts\reg.pl line 7, <DATA
+> line 2.
Sunrise is:Sunset is:

[download]

If I comment out the use strict line of the code and remove the my($sunrise, $sunset) line the code will run. I really don't want to comment out the use strict part of my code. So my question is how can I change my code so the (?{}) part will play nice with use strict?

Thanks 
use strict;
use warnings;

while (<DATA>) {
    my ( $sunrise, $sunset ) = get_time($_);

    print "Sunrise is:", ${$sunrise}, "Sunset is:", ${$sunset}, "\n";

}

sub get_time {
    my ($string) = @_;

    my ($sunrise, $sunset);
    $string =~ /sunrise:\s+(\d+:\d+)(?{ $sunrise = $^N})
\s+sunset:\s+(\d+:\d+)(?{$sunset = $^N})/x;

    return ( \$sunrise, \$sunset );

}

__DATA__
Aberdeen, Scotland 57 9 N 2 9 W sunrise: 03:12 sunset: 21:08
Adelaide, Australia 34 55 S 138 36 E sunrise: 06:52 sunset: 16:41

[download]

In reply to Assigning a varable inside of (?{}) by monsterzero

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.