lookコマンドを使ってlower caseをcamel caseにするやつ

lowercase_to_camelcase.rb

#! /usr/bin/env ruby

source = ARGV.first
dest = ''

def extract(word)
  if `look #{word}`.split(/\n/).include? word
    return word
  end

  if word.length > 0
    extract word[0...-1]
  else
    raise 'not found'
  end
end

while source.length > 0
  word = extract source
  dest += word.capitalize
  source = source[word.length .. -1]
end

puts dest