Hmmm... 

#!/usr/bin/perl

use strict; # https://perlmonks.org/?node_id=11164441
use warnings;
use Time::HiRes qw( time );

my $input = 'foobarmul(123,456)' x 3e6;
my $start;

$start = time;
my $count1 = () = $input =~ /mul\(\d{1,3},\d{1,3}\)/g;
printf "  list context  count1 %d  time %.3f\n", $count1, time - $star
+t;

$start = time;
my $count2 = 0;
++$count2 while $input =~ /mul\(\d{1,3},\d{1,3}\)/g;
printf "scalar context  count2 %d  time %.3f\n", $count2, time - $star
+t;

[download]

Outputs:

  list context  count1 3000000  time 1.025
scalar context  count2 3000000  time 0.860

[download]

In reply to Re: Python regex faster than Perl? by tybalt89
in thread Python regex faster than Perl? by dave93

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