test.yaml

modules:
    - build: Cafe.build
    - minify: Cafe.minify
    - banner: Cafe.banner
    - wrapper: Cafe.commonjswrapper

build :
    sequence:
        """ 
            recipe <= get-recipe@build  'recipe.yaml'
            cache <- get-cache@build
            _ 

            bundles <= get-bundles@build recipe
            modules <= get-modules@build recipe
            - 

            realms <- realms@build
            == <guard> realms or modules ==
            _ 

            changed_modules <= get-changed-modules@build modules
            _ 

            changed_bundles <= get-changed-bundles@build modules bundles
            _ 

            wrapped-modules <= wrap-modules@wrapper changed_modules
            _

            wrapped-bundles <= wrap-bundles@wrapper wrapped-modules
            _

            bundles-with-banner <= add-banner@banner wrapped-bundles
            minify <- minify@minify wrapped-bundles
            _

            save-cache@build cache changed_modules changed_bundles
            save-bundles@build cache changed_modules changed_bundles
        """

http://en.wikipedia.org/wiki/YAML#Other_specified_data_types

можна написати якось так:

build :
    sequence: !do | 
        recipe <= get-recipe@build  'recipe.yaml'
        cache <- get-cache@build
        _ 

        bundles <= get-bundles@build recipe
        modules <= get-modules@build recipe
        ...