Convert multiple woff fonts to otf

#!/usr/bin/env ruby

# Get the source for woff2sfnt from http://people.mozilla.org/~jkew/woff/woff-code-latest.zip

unless ARGV.empty?
  ARGV.each do |filename|
    if filename[-4..-1] == 'woff'
      `woff2sfnt #{filename} > #{filename[0...-4]}otf`
    end
  end
else
  p "Usage: #{$0} filename(s)"
end