Rebol Programming/function

= USAGE: = FUNCTION spec vars body

= DESCRIPTION: = Defines a user function with local words.

FUNCTION is a function value. = ARGUMENTS =
 * spec -- Optional help info followed by arg words (and optional type and string) (Type: block)
 * vars -- List of words that are local to the function (Type: block)
 * body -- The body block of the function (Type: block)

= SOURCE CODE = function: func [ "Defines a user function with local words." spec [block!] {Optional help info followed by arg words (and optional type and string)} vars [block!] "List of words that are local to the function" body [block!] "The body block of the function" ][   make function! head insert insert tail copy spec /local vars body ]