class Rouge::Lexers::Lutin

def self.keywords
  @keywords ||= Set.new %w(
    let in node extern system returns weak strong assert raise try catch
    trap do exist erun run type ref exception include false true 
  )
end

def self.primitives
  @primitives ||= Set.new %w(int real bool trace loop fby)
end

def self.word_operators
  @word_operators ||= Set.new %w(
     div and xor mod or not nor if then else pre) 
end