jurgens/gist:3721147

## gistfile1.rb
Dir['**/*.rb'].each { |f|
  s = open(f).read
  awesome_rx = /(?<!return)(?<!:)(?<!\w)(\s+):(\w+)\s*=>/
  count = s.scan(awesome_rx).length
  next if count.zero?
  s.gsub!(awesome_rx, '\1\2:')
  puts "#{count} replacements @ #{f}"
  open(f, 'w') { |b| b << s } }
	Dir['*/.rb'].each { \|f\|
	s = open(f).read
	awesome_rx = /(?<!return)(?<!:)(?<!\w)(\s+):(\w+)\s*=>/
	count = s.scan(awesome_rx).length
	next if count.zero?
	s.gsub!(awesome_rx, '\1\2:')
	puts "#{count} replacements @ #{f}"
	open(f, 'w') { \|b\| b << s } }