(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 $info = Data('perl'); use feature 'signatures'; sub vname ($v) { return sprintf 'v%d%03d', unpack 'C*', $v; } sub linkversion ($v) { return showlink(sprintf('%vd', $v), '#'.vname($v)); } eval { use List::Util 'first'; use Time::Piece; use Time::Seconds; my $now = Time::Piece->new; $now = $now->strptime($_, '%Y-%m-%d') for $get{at} // (); my $coreeol = ($now - ONE_YEAR * 3)->strftime('%F'); my $vcore = first { $info->{$_}{release} ge $coreeol } sort keys %{$info}; print "
Core security support is provided for 3 years"; print ", so typical users should run at least ", linkversion($_) for $vcore // (); say '.'; 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 $_." for map { linkversion($_) } $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 sprintf '