box-o-sand/wikibooks-tutorial/grocery-list.rb

puts <<GROCERY_LIST
Grocery list
------------
1. Salad mix.
2. Strawberries.*
3. Cereal.
4. Milk.*

* Organic

GROCERY_LIST

puts '
Categorized Grocery list
------------------------
'

puts 'Produce', '-------', <<PRODUCE, 'Dairy', '-----', <<DAIRY, '* Organic'
1. Strawberries*
2. Blueberries

PRODUCE
1. Yogurt
2. Milk*
3. Cottage Cheese


DAIRY


puts
puts 'Indented Grocery list',
     '---------------------', <<-GROCERY_LIST
    1. Salad mix.
    2. Strawberries.
    3. Cereal.
    4. Milk.
    GROCERY_LIST