The Frogatto Formula Language, or FFL as it is commonly known, is used to write scripts for the level editor. Each FFL file contains one function, executed as f(x) where x is the file. FrogattoMarkupLanguage is more commonly used, however - most existing scripting functions have been rendered obsolete by engine improvements.
"An infinite number of monkeys typing into GNU Emacs would never write a good program" - Linus Torvalds