/^Current time =>\s(\d\d\d\d)(\d\d)(\d\d)\S(\d\d)(\d\d)(\d\d)/sx ;

[download]

The capture groups "do not work" because your regex does not match. Your regex does not match because the whitespace in the regex is ignored due to the  //x regex modifier. If you wish to use the  //x modifier (a good idea in general, IMHO), use  [ ] or  \s to represent a space or whitespace. 

>perl -wMstrict -le
"my $s = 'Current time => 123';
 print 'match 1' if $s =~ /Current time => 123/x;
 ;;
 print 'match 2' if $s =~ /Current [ ] time \s => \s+ 123/x;
"
match 2

[download]

In reply to Re: capture groups are not working -- why?? by AnomalousMonk
in thread capture groups are not working -- why?? by hiyall

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.