For Fun

burrito.rb

$meats = %w[fajita-veggie carnitas barbacoa chicken steak]
$rices = ['no-rice', 'white rice', 'brown rice']
$salsas = ['mild salsa', 'medium salsa', 'salsa roja']
$toppings = %w[sour-cream guacamole lettuce cheese]

def gen
  ingredients = []
  base = $meats[rand($meats.size)] + ' burrito with '
  ingredients << $rices[rand($meats.size-1)]
  if rand < 0.9
    ingredients << $salsas[rand($salsas.size-1)]
  end
  toppings = $toppings.dup
  1..3.times do
    if rand < 0.9
      idx = rand(toppings.size-1)
      ingredients << toppings[idx]
      toppings.delete_at idx
    end
  end 
  final = ingredients.pop
  base + ingredients.join(", ") + " and " + final
end

while true
  puts gen
end

__END__

head -n 10 /dev/burrito
barbacoa burrito with brown rice, medium salsa, sour-cream and guacamole
fajita-veggie burrito with brown rice, medium salsa, lettuce and guacamole
steak burrito with white rice, medium salsa, guacamole and sour-cream
chicken burrito with , mild salsa, sour-cream, guacamole and lettuce
chicken burrito with brown rice, medium salsa, guacamole, lettuce and sour-cream
chicken burrito with white rice, mild salsa, sour-cream, lettuce and guacamole
fajita-veggie burrito with no-rice, medium salsa, sour-cream, lettuce and guacamole
steak burrito with , mild salsa, lettuce, sour-cream and guacamole
steak burrito with no-rice, medium salsa, guacamole, lettuce and sour-cream

I think line 9 is supposed to use $rices.size.