MLisp
A modern Lisp variant written in C++, designed primarily as the extension language for MEdit and also available as a standalone Lisp.
A small language with sharp tools
MLisp keeps Lisp’s compact syntax and adds practical tools for composing small programs.
Map patterns match only the keys you name, binding useful values directly in the successful clause.
; extra response fields are fine
(match response
({:status :ok :body body}
(parse body))
({:status :error :code code}
(print "Request failed:" code)
false))Keywords are values and functions. Call one with a map for a concise lookup, with an optional fallback.
(def user
{:name "Ada"
:role :admin})
(:name user)
; "Ada"
(:theme user "system")
; "system" — the fallbackFollow the interpreter from its first expressions through tokenization, reading, and evaluation.
The goal of MLisp is to create a new, modern Lisp variant. Its close integration with MEdit guides the language design without limiting it to the editor.
Implementation notes will be collected as the C++ interpreter develops.
Open development notes →