Sweep includes a dedicated major mode for reading and editing Prolog
code—Sweep Prolog mode, or simply
Enable the Sweep Prolog major mode for reading and editing SWI-Prolog code in the current buffer.
Hook run after entering Sweep Prolog mode. See (emacs)Hooks, for more information about major mode hooks in Emacs.
To activate this mode in a buffer, type M-x sweeprolog-mode
RET. To instruct Emacs to always open Prolog files in Sweep
Prolog mode, modify the Emacs variable
(add-to-list 'auto-mode-alist '("\\.plt?\\'" . sweeprolog-mode))
See (emacs)Choosing Modes, for more information about how Emacs chooses a major mode to use when you visit a file.
To list all of the commands available in a Sweep Prolog mode buffer,
type C-h m (
describe-mode). When Menu Bar mode is
enabled, you can run many of these commands via the Sweep menu. For
more information about Menu Bar mode, see (emacs)Menu Bars.