--- /dev/null
+#!/usr/bin/env perl
+# Copyright (C) 2014, Eric Wong <normalperson@yhbt.net> and all contributors
+# License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
+#
+# Stupid script to make HTML from preformatted, utf-8 text versions,
+# only generating links for http(s). Markdown does too much
+# and requires indentation to output preformatted text.
+use strict;
+use warnings;
+use CGI qw/escapeHTML/;
+use Encode qw/encode/;
+my $str = eval { local $/; <> };
+$str = escapeHTML($str);
+$str = encode('us-ascii', $str, Encode::HTMLCREF);
+my ($title) = ($str =~ /\A([^\n]+)/);
+
+# temporarily swap > for escape so our s!! to add href works.
+# there's probably a way to do this with only a single s!! ...
+$str =~ s!>!\e!g;
+$str =~ s!\b(https?://[\w+\+\&\?\.\%\;/-]+)!<a\nhref="$1"\n>$1</a>!g;
+$str =~ s!\e!>!g; # swap escapes back to >
+
+print '<html><head>',
+ '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />',
+ "<title>$title</title>",
+ "</head><body>\n<pre>", $str , '</pre></body></html>';