I'm working on a Wordpress blog and sometimes need to comment out blocks of intermingled PHP and HTML. Don't get me started on either PHP or interspersing code and markup. Anyhow, here's a hackish command that toggles an if(false) block:

#!/usr/bin/env ruby

lines = STDIN.readlines

php_regex = /\<\?php/i

if lines[0] =~ php_regex

lines.each{|l| puts l unless l =~ php_regex}

else

puts '<?php if(false) { ?>'

lines.each{|l| puts l}

puts '<?php } ?>'

end

Hope this is useful to someone...