Really Cheap Command-Line Option Parsing in Ruby

Question

EDIT: Please, please, please read the two requirements listed at the bottom of this post before replying. People keep posting their new gems and li

Answer 1

Here's my favorite quick-and-dirty option parser:

case ARGV.join
when /-h/
  puts "help message"
  exit
when /-opt1/
  puts "running opt1"
end

The options are regular expressions, so "-h" also would match "--help".

Readable, easy to remember, no external library, and minimal code.