ZWEI

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ZWEI (ZWEI Was EINE, Initially) was an early (~1980s) Emacs-like text editor written by Daniel Weinreb and Mike McMahon for the Lisp machine. Innovations by it include programmability in Lisp, and a new and more flexible method of internally representing buffers. It would later become Symbolics' editor of choice for its Lisp machine development environment, Zmacs. ZWEI sources are available online[1].

[edit] Further reading

  • Weinreb, Daniel L., MIT S.B. Thesis on ZWEI editor