Is there an emacs command to get help with named-extensions?
Using C-h k generally gives help on the command that follows, but if the command that I'm trying to get help with begins with M-x, emacs gives me help with M-x, rather than waiting to hear the named-extension that I want help with.
I've attempted to read relevant sections of the included manual, but I've either not found the right sections, or misunderstood what I've read.
What you're looking for is certainly:
M-x … command or of a noninteractive function)Also, instead of doing C-h c, C-h f in a row, you can just as well use:
Note that a subset of the functions / keys are documented in more depth in emacs' info manual, so you may also try typing:
before the function or keybinding you are interested in.
You might also be interested in installing some modes to increase the discoverability of features, namely:
If you're a use-package user, installing them would amount to adding at the end of your .emacs:
(use-package which-key
:ensure t
:config
(which-key-mode))
(use-package discover-my-major
:ensure t
:config
(global-set-key (kbd "C-h C-m") #'discover-my-major)
(global-set-key (kbd "C-h M-m") #'discover-my-mode))
;; Recall we also have the standard keybinding "C-h m".
(use-package helpful
:ensure t
:config
(global-set-key (kbd "C-h f") #'helpful-callable)
(global-set-key (kbd "C-h v") #'helpful-variable)
(global-set-key (kbd "C-h k") #'helpful-key)
;;; Look up Functions (excludes macros).
;; (global-set-key (kbd "C-h F") #'helpful-function)
;;; Look up Commands (= keybindings).
;; (global-set-key (kbd "C-h K") #'helpful-command)
;;; COMMENTED-OUT as "Info-goto-emacs[-key]-command-node" are more useful.
(add-hook 'emacs-lisp-mode-hook #'(lambda ()
(local-set-key (kbd "C-c C-.") #'helpful-at-point))))
;; Note we can also type "C-h" after a prefix to list its expansions.