perl: hint at extremeness of v5.8 compatibility

[sheet.git] / perl.plp

diff --git a/perl.plp b/perl.plp
index 56904e107717ff6abe4383107880848e3a2a6400..9591ad713ff26d75f1f671b750bb68fc34392f7e 100644 (file)
--- a/perl.plp
+++ b/perl.plp
@@ -2,7 +2,7 @@
 
 Html({
        title => 'perl version cheat sheet',
-       version => 'v1.0',
+       version => '1.1',
        keywords => [qw'
                perl version feature features comparison
                sheet cheat overview summary
@@ -16,8 +16,8 @@ Html({
 
 <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 stable/enterprise platforms such as Solaris 10, RHEL 3, SLES 8">v5.8</span> or
-<span title="on up-to-date servers such as Debian wheezy, Ubuntu 12.04, CentOS 7">v5.14</span>.
+<span title="on dinosaur platforms such as Solaris 10, 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>
 
 <:
@@ -28,7 +28,26 @@ for my $vernum (reverse sort keys %{$info}) {
 
        print '<div class="section">'."\n";
        printf '<h2>%vd <small>%s</small></h2><dl>'."\n", $vernum, $verrow->{release};
-       printf '<dt>%s<dd>%s'."\n", @{$_}, '<br/>' for @{ $verrow->{new} };
+       for (@{ $verrow->{new} }) {
+               if (defined (my $experimental = $_->[2])) {
+                       my $title = 'experimental';
+                       my $class = ' class="ex"';
+                       if (ref \$experimental eq 'VSTRING') {
+                               my $dropped = $experimental =~ s/^\0//
+                                       and (exists $get{v} or next);
+                               $title = sprintf('%s %vd',
+                                       $dropped ? 'removed in ' : "$title until",
+                                       $experimental,
+                               );
+                               $experimental = $_->[3];  # optional additional class
+                       }
+                       if ($experimental) {
+                               $class .= sprintf ' title="%s"', $experimental;
+                       }
+                       $_->[1] .= qq{ <em$class>($title)</em>};
+               }
+               printf '<dt>%s<dd>%s'."\n", @{$_}, '<br/>'
+       }
        printf '<dt>Unicode</dt><dd>v%s'."\n", $_ for $verrow->{unicode} || ();
        print "</dl>\n";
        print "</div>\n\n";