Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
Here's a benchmark, using the mentioned single regex, the double regex from the FAQ (also mentioned), BrowserUKs solution, and the one from Regexp::Common:
#!/usr/bin/perl use strict; use warnings; use Benchmark 'cmpthese'; use Regexp::Common; use Test::More tests => 4; our @data = ( " White space in front", "White space at back ", "Nowhitespaceatall", "White space, but not in front or at back", " White space in front, and at back " ); our @expected = ( "White space in front", "White space at back", "Nowhitespaceatall", "White space, but not in front or at back", "White space in front, and at back" ); our (@s, @d, @b, @r); print '#'; cmpthese -1, { '#single' => '@s = @data; s/^\s*(.*?)\s*$/$1/s for @s', '#duo' => '@d = @data; s/^\s+//, s/\s+$// for @d', '#browseruk' => '@b = @data; s/^\s*(.*)\b\s*$/$1/s for @b', '#R::C' => '@r = map {$RE{ws}{crop}->subs($_)} @data', }; is_deeply (\@s, \@expected, "single"); is_deeply (\@d, \@expected, "duo"); is_deeply (\@b, \@expected, "browseruk"); is_deeply (\@r, \@expected, "R::C"); __END__ 1..4 # Rate #R::C #single #browseruk #duo #R::C 1914/s -- -87% -94% -97% #single 15175/s 693% -- -53% -75% #browseruk 32288/s 1587% 113% -- -46% #duo 59650/s 3017% 293% 85% -- ok 1 - single ok 2 - duo ok 3 - browseruk ok 4 - R::C

In reply to Re^2: trim leading & trailing whitespace (Benchmark) by Anonymous Monk
in thread trim leading & trailing whitespace by ady

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
  • 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 meditating upon the Monastery: (8)
    As of 2014-09-19 21:19 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

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











      Results (147 votes), past polls