#!/usr/bin/perl
use strict;
use warnings; no warnings "numeric" ;
use Benchmark "cmpthese";

my %strings = (
    '999:1' => scalar ('"' x 999 . '-') x 1000,
    '9:1'   => '"""""""""-' x 100000,
    '1:1'   => '"-' x 500000,
);

for my $test (sort {$b<=>$a} keys %strings) {
    my $s = $strings{$test};
    printf "\n%s... ($test):\n\n", substr($s,0,30);

    cmpthese (1000,
    {
        's/"//g'  => sub {
                      my $t = $s;
                      $t =~ s/"//g;
                  },
        's/"+//g' => sub {
                      my $t = $s;
                      $t =~ s/"+//g;
                  },
        'tr/"//d' => sub {
                      my $t = $s;
                      $t =~ tr/"//d;
                  },
    } );
}