(jcwren) RE: regexp's

[jcwren]

Or, in a few less lines...

#!/usr/local/bin/perl -w

use strict;

{
   my %hash = ();

   while (<DATA>)
   {
      my @items = split;

      $hash {pop @items} = shift @items;
   }

   print "key=$_, val=$hash{$_}\n" foreach sort keys (%hash);
}

__DATA__
1 time 02:11:05 djw
5 time 04:20:03 bert
2 time 00:01:39 chris

---

[jcw@linux fs]$ perl q.pl
key=bert, val=5
key=chris, val=2
key=djw, val=1
[jcw@linux fs]$

--Chris

e-mail jcwren

[extremely]

A benchmark vs. Ovid's regex. =) Tho you all knew split beats regex, here is the numbers.

Benchmark: timing 50000 iterations of Ovid, jcwren...
      Ovid:  4 wallclock secs ( 3.32 usr +  0.00 sys =  3.32 CPU) @ 15060.24/s (
n=50000)
    jcwren:  2 wallclock secs ( 2.63 usr +  0.00 sys =  2.63 CPU) @ 19011.41/s (
n=50000)
          Rate   Ovid jcwren
Ovid   15060/s     --   -21%
jcwren 19011/s    26%     --

--
$you = new YOU;
honk() if $you->love(perl)

[princepawn]

My

GOD

that is elegant. Too bad I can only ++ you one time on that one. This is one the most elegant things I have EVER seen, save for something merlyn did in Effective Perl programming:

($_ & ~$_) eq 0

to determine if a scalar is a number (i may be slightly off on the actual expression)