_:vb7039771 "1995, Roland Hughes, \u201CTricks You Should Already Have\u201D, in Zinc It!: Interfacing Third Party Libraries with Crossplatform GUI\u2019s, Evanston, Ill.: John Gordon Burke Publisher, \u2192ISBN, section 3.5 (exit_program() Function), page 3-6:"@en . . _:vb7039769 "(ambitransitive, computing) To end or terminate (a program, subroutine, etc.)"@en . _:vb7039770 "1990, Guy L[ewis] Steele Jr. et al., \u201CControl Structure\u201D, in Common Lisp: The Language, 2nd edition, [Bedford, Mass.]: Digital Press, \u2192ISBN, section 7.11 (Dynamic Non-local Exits), page 187:"@en . _:vb7039771 "Every ZAF program needs to call a routine like this to exit the application. Just put it in your library and be done with it."@en . _:vb7039770 . _:vb7039770 "Common Lisp provides a facility for exiting from a complex process in a non-local, dynamically scoped manner."@en . "3" . _:vb7039771 . _:vb7039769 .