Html({
title => 'perl version cheat sheet',
- version => 'v1.0',
+ version => '1.2',
keywords => [qw'
perl version feature features comparison
sheet cheat overview summary
});
:>
-<h1>Perl cheat sheets</h1>
+<h1>Perl release summary</h1>
+
+<p>The most significant features introduced for recent versions of the Perl scripting language.
+Depending on desired compatibility you'll want to support a minimum of
+<span title="on dinosaur platforms such as Solaris 10, AIX 5.2, RHEL 3, SLES 8">v5.8</span> or
+<span title="on stable servers such as Debian wheezy, Ubuntu 12.04, CentOS 7">v5.14</span>.
+</p>
<:
my $info = do 'perl.inc.pl' or die $@ // $!;
-for my $ver (reverse sort keys %{$info}) {
+for my $vernum (reverse sort keys %{$info}) {
+ my $verrow = $info->{$vernum};
+ $verrow->{unstable} and next unless exists $get{v};
+
print '<div class="section">'."\n";
- printf '<h2>%vd</h2><dl>'."\n", $ver;
- printf '<dt>%s<dd>%s', Entity(@{$_}), '<br/>' for @{ $info->{$ver} };
+ printf '<h2>%vd <small>%s</small></h2><dl>'."\n", $vernum, $verrow->{release};
+ for (@{ $verrow->{new} }) {
+ my ($topic, $desc, $attr) = @{$_};
+ if ($attr) {
+ my $title;
+ if (defined $attr->{experimental}) {
+ $title = 'experimental';
+ }
+ if ($attr->{dropped}) {
+ next unless exists $get{v};
+ $title = sprintf 'removed in %vd', $attr->{dropped};
+ }
+ elsif ($attr->{stable}) {
+ $title .= sprintf ' until %vd', $attr->{stable};
+ }
+ if ($attr->{experimental}) {
+ $title = sprintf '<span title="experimental::%s">%s</span>',
+ $attr->{experimental}, $title;
+ }
+ if ($attr->{feature}) {
+ $title = sprintf('<span title="%s">feature</span>', $attr->{feature})
+ . (defined $title && ", $title");
+ }
+ $desc .= sprintf ' <em class="ex">(%s)</em>', $title;
+ }
+ printf '<dt>%s<dd>%s'."\n", $topic, $desc || '<br/>';
+ }
+ printf '<dt>Unicode</dt><dd>v%s'."\n", $_ for $verrow->{unicode} || ();
print "</dl>\n";
print "</div>\n\n";
}