class Rouge::Lexers::Make

def self.functions
  @functions ||= %w(
    abspath addprefix addsuffix and basename call dir error eval file
    filter filter-out findstring firstword flavor foreach if join lastword
    notdir or origin patsubst realpath shell sort strip subst suffix value
    warning wildcard word wordlist words
  )
end

def initialize(opts={})
  super
  @shell = Shell.new(opts)
end