supported direct specification with key code

[lobin-z0x50]

I want to specify the key code directly from my program and perform the key operation.

[kaspergrubbe]

Looks good, but how about we rewrite it to a case statement, it makes it a bit prettier I think.

def get_key_code which
  case which
  when String
    if which.length != 1
      raise ArgumentError, 'can only get key_code of single character strings'
    end
    which[0].ord
  when Symbol
    KEY_MAP[which]
  when Integer
    which
  else
    raise ArgumentError, "unsupported key value: #{which.inspect}"
  end
end