module YamlClean

# File lib/yamlclean.rb, line 8
def self.clean(filename)
  if !File.file?(filename) then
    raise "File not found: " + filename
  elsif !File.readable?(filename)
    raise "Can't read file: " + filename
  end

      yamlString = IO.read(filename)
      dirty = YAML.load(yamlString)
        cleaned = dirty.ya2yaml(:syck_compatible => true)

  # Remove trailing whitespace
  cleaned = cleaned.gsub(/ +\n/, "\n")

  # Remove unnecessary --- header
  if(cleaned.scan(/^---$/).size == 1) then
    cleaned = cleaned.gsub(/^---$\n?/, "")
  end

        return cleaned
end

# File lib/yamlclean.rb, line 5
def self.start()
end