typoを検出するッ

typofixer.rb

# -*- coding: utf-8 -*-
module Kernel

  alias typofixer_original_method_missing method_missing

  def method_missing funcname, *args, &blk
    at = caller
    begin
      typofixer_original_method_missing funcname, *args, &blk
    rescue NoMethodError, NameError => e
      funcname = funcname.to_s
      (methods + private_methods).each do |my_method|
        my_method = my_method.to_s
        if (funcname.length / 2) < (0..funcname.length).inject(0) { |r, i| funcname[i] == my_method[i] ? r + 1 : r }
          puts "もしかして: #{my_method}"
          puts at
          return send my_method, *args, &blk
        end
      end
      raise e
    end
  end

end

clane # => もしかして: clone