Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
I'll leave the interaction with the environment to you.
$_ = "ATGCCCGATATATATCCCNNNATATATGCGCATGCTGCT"; say length $1 while /\G(.*?)AT/g; say length $'; __END__ 0 5 0 0 0 6 0 0 4 6
Or:
$_ = "ATGCCCGATATATATCCCNNNATATATGCGCATGCTGCT"; my ($l, $m) = (-2, 0); $m = length $', say -$l - 2 + ($l = length($`)) while /AT/g; say $m; __END__ 0 5 0 0 0 6 0 0 4 6
For those readers who get trigger happy when they see a use of $' or $`, feel free to use /p instead if you're going to use the above code.


  • 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
  • Outside of code tags, you may need to use entities for some characters:
            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 examining the Monastery: (8)
    As of 2014-09-20 21:19 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      How do you remember the number of days in each month?











      Results (163 votes), past polls