Created
May 8, 2022 05:56
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Use $+{'neko'} instead of $1
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#!/usr/bin/env perl | |
# Captured $1 vs. ${^MATCH} | |
use strict; | |
use warnings; | |
use Benchmark ':all'; | |
use Test::More 'no_plan'; | |
my $q = 'neko-nyaan-cat'; | |
sub doller { | |
my $v = shift; | |
$v =~ /\A([a-z]+)[-].+[-]([a-z]+)\z/; | |
return $1.'-'.$2; | |
} | |
sub namedc { | |
my $v = shift; | |
$v =~ /\A(?<neko1>[a-z]+)[-].+[-](?<neko3>[a-z]+)\z/; | |
return $+{'neko1'}.'-'.$+{'neko3'}; | |
} | |
is doller($q), 'neko-cat'; | |
is namedc($q), 'neko-cat'; | |
printf("Running with Perl %s on %s\n%s\n", $^V, $^O, '-' x 80); | |
cmpthese(6e6, { | |
'=~ $1, $2' => sub { doller($q) }, | |
'(?<neko>)' => sub { namedc($q) }, | |
} | |
); | |
__END__ | |
Running with Perl v5.30.0 on darwin | |
-------------------------------------------------------------------------------- | |
Rate (?<neko>) =~ $1, $2 | |
(?<neko>) 412088/s -- -48% | |
=~ $1, $2 791557/s 92% -- | |
Running with Perl v5.32.0 on darwin | |
-------------------------------------------------------------------------------- | |
Rate (?<neko>) =~ $1, $2 | |
(?<neko>) 413508/s -- -49% | |
=~ $1, $2 810811/s 96% -- | |
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