vendor/bundle/ruby/3.4.0/gems/rouge-4.5.2/lib/rouge/demos/lua


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-- defines a factorial function
function fact (n)
  if n == 0 then
    return 1
  else
    return n * fact(n-1)
  end
end
    
print("enter a number:")
a = io.read("*number")        -- read a number
print(fact(a))