I just want to add my two cents and point out that the anti-.* attitude here theatens to install voodoo programming ideas in newcomers...

.* is often non-optimal, but it is very bad system of choosing which way to do it if you are using dogmatic rules.

Isn't the point of having many ways to do it the fact that the best way depends on context? Rather than encouraging bondage, I think it is healthier to encourage understanding of the cases where it causes problems.

In this case you're right that it would be more efficient to replace it, but not because .* is bad... simply because it's more work than is needed. On the bright side, since the regex is anchored the .* is a very small performance hit, not the order of magnitude that is caused by truely awful uses of it.
--
Snazzy tagline here


In reply to Re: Re: A question of efficiency by Aighearach
in thread A question of efficiency by c

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.