How should I capitalize Ruby? [closed]

Question

RUBY? Ruby? ruby? What's good style?

I know the answer—I just wanted to make sure the question was out there and questioners were aware that there is a correct form.

Also, should I capitalize "gem" as "GEM"?

class TestLanguageName < Test::Unit::TestCase
  def test_language_name
    assert_correct_language_name StackOverflow.new.describe_language("RuBy")
  end
end

class StackOverflow
  def describe_language(string)
    # Which of the following?
    methods = [:upcase, :capitalize, :downcase]
    string.send(methods[rand(3)])
  end
end

Answer 1

Section 1.9 of ruby-doc.org FAQ says:

Officially, the language is called "Ruby". On most systems, it is invoked using the command "ruby". It's OK to use ruby instead of Ruby. Please don't use RUBY as the language name. Originally, or historically, it was called "ruby".

Either Ruby or ruby is correct.