Elisp for CCA EMACS
Steve Zimmerman
last week, where Elisp was publicly demonstrated for the first time.
Elisp Extension Language Announced for CCA EMACS
CAMBRIDGE, Mass., June 11 -- CCA Uniworks announced today the
availability of the Elisp extension language for the CCA EMACS screen
editor. Elisp adds to the functionality of CCA EMACS by allowing users
to program their own extensions to the editor, adding anything from
simple commands to complex packages. These commands or packages can be
automatically loaded into CCA EMACS, and appear to the user to be no
different from normal built-in commands.
Elisp is a subset of Common Lisp, which is rapidly emerging as the new
standard for Lisp. Elisp is a true Lisp implementation, which means
that it can even be used to extend itself to any degree desired. Among
its major features are full lexical scoping and automatic garbage
collection, which make it feasible to run and maintain large scale
packages. Elisp has direct access to over a hundred EMACS primitives,
so the Elisp user is able to utilize the full power of the CCA EMACS
environment.
Elisp has a number of different interfaces to CCA EMACS, each suitable
for different purposes. One of the most useful is the minibuffer, which
is an EMACS buffer that contains an interactive version of Elisp. In
the minibuffer, Elisp expressions are evaluated as they are typed in.
Output may be directed to either the minibuffer or to some other EMACS
buffer. At the same time, the minibuffer is a regular EMACS buffer, so
all the normal CCA EMACS editing commands are available.
In addition to the minibuffer, Elisp code may be loaded directly from
files, or from other EMACS buffers. Single Elisp forms may also be
evaluated one at a time directly from the EMACS top level.
Elisp comes as a standard feature of CCA EMACS. Prices for a binary
version of CCA EMACS range from $380 to $1900, with educational and
quantity discounts available.