MDL (programming language)

File Format
Name	MDL (programming language)
Ontology	Languages Programming Languages MDL (programming language)
Extension(s)	.mud

MDL (originally Muddle; MIT Design Language) is a LISP-like programming language introduced at MIT. It is best known for its use in Interactive Fiction as the original development language of Zork; later Infocom games used a language called ZIL that had a syntax based on MDL, though it didn't have the functional-language capabilities of its parent language.

Links

• Wikipedia article
• What is ZIL anyway? (mentions MDL)
• Michael Dornbrook and Marc Blank: The MDL Programming Language Primer (1981)
• Greg Pfister and Stuart W Galley: The MDL Programming Language (1971)
• P. David Lebling: The MDL Programming Environment (1980)
  • The same document, a different scan
• Joel M. Berez: A Dynamic Debugging System for MDL (1978)
• "Graphical Programming and Monitoring", a graphical environment written in MDL (1988)
• MDL in the Interactive Fiction Archive: contains some documents, covered previously, as well as the Confusion interpreter (2009)