Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
I am working my way through a beginning perl text book in my free time and I am currently reading the chapter on regular expressions. Anyways, I am confused by a piece of this code:
$what = "[box]"; foreach (qw(in[box] out[box] white[sox])) { if (/\Q$what\E/) { print "$_ matched!\n"; } }
I get that it is storing the string \box\ in the varriable $what. If I understand it right, the foreach statement parses each of the strings in the parenthesies looking for the string \box\. What is the "qw" in the line "(qw(in\box\ out\box\ white\sox\))" though? I have no idea what that is. Sorry about the words box and sox being highlighted in red. I don't know how to stop this site from interpolating (correct word?) the brackets.

In reply to I don't understand a piece of this code by Socrates440

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!
  • 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, 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, 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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others about the Monastery: (17)
    As of 2015-07-28 18:34 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (258 votes), past polls