4
You don't need a minor mode to customize the appearance of a major mode. You can do that more simply with a function called from the mode hook:
(defun my-ess-hook ()
(setq line-spacing 1))
(add-hook 'iESS-mode-hook 'my-ess-hook)
(set-face-attribute 'default ...) will change the default face for the whole Emacs frame, it doesn't apply to a single mode ...
3
You are right in assuming that the location is wrong. Emacs does not know about your niranjan directory. You assume that ~/.emacs.d/elpa/ is a special location and that emacs automatically knows how to add packages installed in there.
If you look at the contents of the variable load-path, you'll see that is not the case. Every package that has been ...
2
Contrast M-f1 for a function key with ?\M-f for a character. You've bound myfun to [M-q] which means the one-key sequence where the key is the function key called q (which does not exist) with the modifier whose prefix is M (which is meta). Instead of referencing a function key q, you need to reference the character q. You can write this [?\M-q], or in ...
answered May 1 at 8:14
Gilles 'SO- stop being evil'
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2
Refer to the manual:
C-hig (elisp)Properties in Mode
Or in the online manual (which is always for the most recent stable release of Emacs): https://www.gnu.org/software/emacs/manual/html_node/elisp/Properties-in-Mode.html
I think there's no point in quoting an excerpt here -- you need to read the whole page.
2
Your code works perfectly, for me. Did you try it in emacs -Q (no init file)?
And if I load library help-fns+.el and then use M-k hello-mode-map it shows me that M-p is bound to an (anonymous) command.
However, I recommend that you give your keymap a name (a symbol). That helps users (and yourself) more.
(If you have an Emacs 28 preview then you also have ...
2
Something like
(add-hook 'slime-repl-mode-hook (lambda () (centered-point-mode -1)))
which toggles the mode off in slime REPLs.
2
As you've seen, abbrev normally requires the abbreviation to contain only word-constituent characters, and that doesn't normally include `. You could make that character word-constituent by changing its syntax for the mode in question, but I believe it would be better to adapt abbrev (only) to your requirement (as lots of things are affected by syntax).
You ...
2
In a terminal the value of [(return)] doesn't apply. You need to use (kbd "RET") instead. (or probably other variations would do, but not [(return)]).
2
I tested the (mapcar #'car minor-mode-alist) solution, but its length doesn't change after I disable a minor mode (while M-x describe-mode reflects this). Moreover, it seems inaccurate as I can't find some minor-modes listed by M-x describe-mode.
I tried the package manage-minor-mode which allows users to enable/disable a minor-mode through an interface. ...
2
See the doc string for define-minor-mode: (define-minor-mode MODE DOC [KEYWORD VAL ... &rest BODY]). IOW, the code that should be executed when the mode is enabled (and also when the mode is disabled) has to be included as the BODY in the define-minor-mode form. Something like this:
(define-minor-mode ess_XXX-mode
"Personal configuration of ESS'&...
2
Your ess_XXX-mode.el file needs to be in a directory which is present in your C-hv load-path list.
Your ~/.emacs.d directory is not present in that list by default (and you should not add it).
If necessary, create a new directory such as ~/.emacs.d/lisp and add that to your load-path.
(add-to-list 'load-path (expand-file-name "~/.emacs.d/lisp"))
1
That information isn't stored, unfortunately.
You can check whether the mode variable show-paren-mode is global or buffer-local:
(local-variable-if-set-p 'show-paren-mode)
That's not a guarantee (there's nothing stopping you giving a global mode a buffer-local value), but it's a reasonable heuristic.
You might deal with that issue with:
(with-temp-buffer
(...
1
I'd consider calling (define-key mymode-map [remap fill-paragraph] #'myfun) from mymode-hook rather than defining it in the minor mode.
(defun remap-fill-paragraph ()
(define-key mymode-map [remap fill-paragraph] #'myfun))
(add-hook 'mymode-hook #'remap-fill-paragraph)
This means you don't have to remember to change the minor-mode mapping if you ever ...
1
Attempting answering my own question:
Try 1: partially works, but as per comments below doesn't seem reliable
Create a wrapper global mode, that is selective about when it enables.
(define-global-minor-mode my-global-selectrum-mode selectrum-mode
(lambda ()
(when (not (memq major-mode
(list 'shell-mode)))
(selectrum-mode))))
...
1
See C-hf kill-local-variable for reverting a buffer-local variable to the global state.
If you just set the buffer-local value to the variable's current default value, then it's still a buffer-local value (i.e. it won't reflect future changes to the default).
1
Minor modes are toggles. Defining a minor mode also creates a variabel with the same name. This variable is toggled when enabling/disabling the minor mode.
So following code works:
(define-minor-mode margin-mode
(if (not margin-mode)
(setq left-margin-width 3)
(setq left-margin-width (default-value 'left-margin-width))))
Elisp is a Lisp-n type ...
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