GNU Emacs is a version of Emacs, written by the author of the original (PDP-10) Emacs, Richard Stallman. The primary documentation of GNU Emacs is in the GNU Emacs Manual, which you can read on line using Info, a subsystem of Emacs. Please look there for complete and up-to-date documentation. This man page is updated only when someone volunteers to do so; the Emacs maintainers' priority goal is to minimize the amount of time this man page takes away from other more useful projects. The user functionality of GNU Emacs encompasses everything other Emacs editors do, and it is easily extensible since its editing commands are written in Lisp.
gnu-emacs-19.34: description + notes
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