Good Day bros. I was hunting around for some resources to parse Apache log files, and I ran across this script which contains the following statement
my ($host,$date,$url_with_method,$status,$size,$referrer,$agent) = $ +line =~ m/^(\S+) - - \[(\S+ \+\d{4})\] "(\S+ \S+ [^"]+)" (\d{3}) (\d ++|-) "(.*?)" "([^"]+)"$/;
in an attempt to split apart a $line from the log file like
76.172.202.159 - - [31/Aug/2007:15:58:15 -0600] "GET / HTTP/1.1" 200 2 +9692 "http://www.paperbackswap.com/forum/view_topic.php?t=70235&ls=" +"Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.0.12) Gecko +/20070508 Firefox/1.5.0.12"
This didn't look right to me since the $line =~ m/.../ part would evaluate to 1 rather than a list. I tried it in the debugger sure enough it didn't work.

This got me to thinking about whether there is a way to make it work. I looks like intent of it is for the parens in the regexp to capture the material of interest, but this would wind up in the special vars $1, $2, etc., rather than a list. Does anyone know how this could be made to work?


In reply to Match into list? by cormanaz

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.