(common.inc.plp)><: Html({ title => 'perl version cheat sheet', version => '1.4', keywords => [qw' perl version feature features comparison sheet cheat overview summary '], stylesheet => [qw'light dark red'], data => ['perl.inc.pl'], }); :>
The most significant features introduced for recent versions of the Perl scripting language. <: my $info = Data('perl'); eval { use List::Util 'first'; use Time::Piece; use Time::Seconds; use feature 'signatures'; sub linkversion ($v) { return sprintf('%vd', $v); } my $now = Time::Piece->new; my $coreeol = ($now - ONE_YEAR * 3)->strftime('%F'); my $vcore = first { $info->{$_}{release} ge $coreeol } sort keys %{$info}; say "
Core security support is provided for 3 years", ", so typical users should run at least $_." for linkversion($vcore); my $vendoreol = ($now - ONE_YEAR * 5)->strftime('%F'); my $vdebian = first { $info->{$_}{release} ge $vendoreol && $info->{$_}{distro}{debian} } sort keys %{$info}; say sprintf "Stable distributions such as Debian %s maintain %s+.", $info->{$_}{distro}{debian}, linkversion($_) for $vdebian; my $nowcmp = $now->strftime('%F'); my $vdino = first { $info->{$_}{support} ge $nowcmp } sort keys %{$info}; say "Enterprise platforms retain versions up to $_." for linkversion($vdino); return 1; } or Alert('Missing version recommendations', $@); say '
'; for my $vernum (reverse sort keys %{$info}) { my $verrow = $info->{$vernum}; defined $verrow->{unstable} and next unless exists $get{v}; say '