As a quick and dirty solution (I actually have this in a cgi):
use warnings; use strict;
sub pr { print @_, "\n" };
sub pp { print "<P>", @_, "\n" };
sub pb { print "<P><B>", @_, "</B> \n" };
sub pq { my $x= join "", @_;
$x=~s!([^a-zA-Z0-9.,:;_\!?\-+*/="'`(){}\[\]\\\\@#\$^~ \n])!
sprintf("&#x%x;",ord$1) !ge;
$x=~s!^ | (?= |$)! !gm; $x=~s!\n!<BR>!g;
print $x, "\n"; }
BEGIN {
print qq{Content-Type: text/html \nCache-Control: no-cache \n\n <HTML>
+};
$SIG{__DIE__}= sub { pb "die "; pq $_[0]; pr "</HTML>";
die $_[0]; };
$SIG{__WARN__}= sub { pp "warn "; pq $_[0]; pr "</P>"; };
};
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