4.5: Energize

Q4.5.1: What is/was Energize?

David N Gray writes:

The files in lisp/energize are to enable Emacs to interface with the "Energize Programming System", a C and C++ development environment, which was a product of Lucid, Inc. Tragically, Lucid went out of business in 1994, so although Energize is still a great system, if you don’t already have it, there isn’t any way to get it now. (Unless you happen to be in Japan; INS Engineering may still be selling it there. Tartan bought the rights to sell it in the rest of the world, but never did so.)