Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

To be accurate, it does work with or without initializing $count to zero. But on the first iteration, the undefined $count will be treated as though it were zero, and a warning will be generated letting the programmer know that he probably should initialize $count to zero explicitly before using it in the context of a numeric comparison (assuming warnings are enabled, as they probably ought to be).

As for why the example doesn't explicitly use strict, first it seemed that the OP already had a handle on how to declare lexical variables, and second, "Well, because it's a four-line one-line example program I concocted as an example in my Usenet PerlMonks article---duh!"

(I hope the intended humor isn't lost in this post, your point is valid.)

Oh, and you're correct; the process stops as soon as the $limitth match occurs, which is a good approach since it stops extra work from happening. Think of it as the difference between List::Util's first function, and the core's grep.


Dave


In reply to Re^3: Limiting number of regex matches by davido
in thread Limiting number of regex matches by eversuhoshin

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 romping around the Monastery: (11)
    As of 2015-07-30 23:19 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 (273 votes), past polls