featurep! will be renamed modulep! in the future, so it's been deprecated. They have identical interfaces, and can be replaced without issue. featurep! was never quite the right name for this macro. It implied that it had some connection to featurep, which it doesn't (only that it was similar in purpose; still, Doom modules are not features). To undo such implications and be consistent with its namespace (and since we're heading into a storm of breaking changes with the v3 release anyway), now was the best opportunity to begin the transition.
18 KiB
18 KiB
API Demos
This file contains demos of Doom's public API; its core library, macros, and
autodefs. It is used by the elisp-demos
package to display examples of their
usage in the documentation displayed by either describe-function
or
helpful-function
(on SPC h f).
Table of Contents TOC_3
doom-lib
add-hook!
;; With only one hook and one function, this is identical to `add-hook'. In that
;; case, use that instead.
(add-hook! 'some-mode-hook #'enable-something)
;; Adding many-to-many functions to hooks
(add-hook! some-mode #'enable-something #'and-another)
(add-hook! some-mode '(enable-something and-another))
(add-hook! '(one-mode-hook second-mode-hook) #'enable-something)
(add-hook! (one-mode second-mode) #'enable-something)
;; Appending and local hooks
(add-hook! (one-mode second-mode) :append #'enable-something)
(add-hook! (one-mode second-mode) :local #'enable-something)
;; With arbitrary forms
(add-hook! (one-mode second-mode) (setq v 5) (setq a 2))
(add-hook! (one-mode second-mode) :append :local (setq v 5) (setq a 2))
;; Inline named hook functions
(add-hook! '(one-mode-hook second-mode-hook)
(defun do-something ()
...)
(defun do-another-thing ()
...))
TODO add-transient-hook!
after!
;;; `after!' will take:
;; An unquoted package symbol (the name of a package)
(after! helm ...)
;; An unquoted list of package symbols (i.e. BODY is evaluated once both magit
;; and git-gutter have loaded)
(after! (magit git-gutter) ...)
;; An unquoted, nested list of compound package lists, using any combination of
;; :or/:any and :and/:all
(after! (:or package-a package-b ...) ...)
(after! (:and package-a package-b ...) ...)
(after! (:and package-a (:or package-b package-c) ...) ...)
;; (Without :or/:any/:and/:all, :and/:all are implied.)
;; A common mistake is to pass it the names of major or minor modes, e.g.
(after! rustic-mode ...)
(after! python-mode ...)
;; But the code in them will never run! rustic-mode is in the `rustic' package
;; and python-mode is in the `python' package. This is what you want:
(after! rustic ...)
(after! python ...)
appendq!
(let ((x '(a b c)))
(appendq! x '(c d e))
x)
(a b c c d e)
(let ((x '(a b c))
(y '(c d e))
(z '(f g)))
(appendq! x y z '(h))
x)
(a b c c d e f g h)
custom-set-faces!
(custom-set-faces!
'(outline-1 :weight normal)
'(outline-2 :weight normal)
'(outline-3 :weight normal)
'(outline-4 :weight normal)
'(outline-5 :weight normal)
'(outline-6 :weight normal)
'(default :background "red" :weight bold)
'(region :background "red" :weight bold))
(custom-set-faces!
'((outline-1 outline-2 outline-3 outline-4 outline-5 outline-6)
:weight normal)
'((default region)
:background "red" :weight bold))
(let ((red-bg-faces '(default region)))
(custom-set-faces!
`(,(cl-loop for i from 0 to 6 collect (intern (format "outline-%d" i)))
:weight normal)
`(,red-bg-faces
:background "red" :weight bold)))
;; You may utilise `doom-themes's theme API to fetch or tweak colors from their
;; palettes. No need to wait until the theme or package is loaded. e.g.
(custom-set-faces!
`(outline-1 :foreground ,(doom-color 'red))
`(outline-2 :background ,(doom-color 'blue)))
custom-theme-set-faces!
(custom-theme-set-faces! 'doom-one
'(outline-1 :weight normal)
'(outline-2 :weight normal)
'(outline-3 :weight normal)
'(outline-4 :weight normal)
'(outline-5 :weight normal)
'(outline-6 :weight normal)
'(default :background "red" :weight bold)
'(region :background "red" :weight bold))
(custom-theme-set-faces! '(doom-one-theme doom-one-light-theme)
'((outline-1 outline-2 outline-3 outline-4 outline-5 outline-6)
:weight normal)
'((default region)
:background "red" :weight bold))
(let ((red-bg-faces '(default region)))
(custom-theme-set-faces! '(doom-one-theme doom-one-light-theme)
`(,(cl-loop for i from 0 to 6 collect (intern (format "outline-%d" i)))
:weight normal)
`(,red-bg-faces
:background "red" :weight bold)))
;; You may utilise `doom-themes's theme API to fetch or tweak colors from their
;; palettes. No need to wait until the theme or package is loaded. e.g.
(custom-theme-set-faces! 'doom-one
`(outline-1 :foreground ,(doom-color 'red))
`(outline-2 :background ,(doom-color 'blue)))
TODO defer-feature!
TODO defer-until!
disable-packages!
;; Disable packages enabled by DOOM
(disable-packages! some-package second-package)
doom!
(doom! :completion
company
ivy
;;helm
:tools
(:if IS-MAC macos)
docker
lsp
:lang
(cc +lsp)
(:cond ((string= system-name "work-pc")
python
rust
web)
((string= system-name "writing-pc")
(org +dragndrop)
ruby))
(:if IS-LINUX
(web +lsp)
web)
:config
literate
(default +bindings +smartparens))
file-exists-p!
(file-exists-p! "init.el" doom-emacs-dir)
/home/hlissner/.emacs.d/init.el
(file-exists-p! (and (or "doesnotexist" "init.el")
"LICENSE")
doom-emacs-dir)
/home/hlissner/.emacs.d/LICENSE
cmd!
(map! "C-j" (cmd! (newline) (indent-according-to-mode)))
cmd!!
When newline
is passed a numerical prefix argument (C-u 5 M-x newline
), it
inserts N newlines. We can use cmd!!
to easily create a keybinds that bakes in
the prefix arg into the command call:
(map! "C-j" (cmd!! #'newline 5))
Or to create aliases for functions that behave differently:
(fset 'insert-5-newlines (cmd!! #'newline 5))
;; The equivalent of C-u M-x org-global-cycle, which resets the org document to
;; its startup visibility settings.
(fset 'org-reset-global-visibility (cmd!! #'org-global-cycle '(4))
cmds!
(map! :i [tab] (cmds! (and (modulep! :editor snippets)
(bound-and-true-p yas-minor-mode)
(yas-maybe-expand-abbrev-key-filter 'yas-expand))
#'yas-expand
(modulep! :completion company +tng)
#'company-indent-or-complete-common)
:m [tab] (cmds! (and (bound-and-true-p yas-minor-mode)
(evil-visual-state-p)
(or (eq evil-visual-selection 'line)
(not (memq (char-after) (list ?\( ?\[ ?\{ ?\} ?\] ?\))))))
#'yas-insert-snippet
(and (modulep! :editor fold)
(save-excursion (end-of-line) (invisible-p (point))))
#'+fold/toggle
(fboundp 'evil-jump-item)
#'evil-jump-item))
kbd!
(map! "," (kbd! "SPC")
";" (kbd! ":"))
lambda!
(mapcar (lambda! ((&key foo bar baz))
(list foo bar baz))
'((:foo 10 :bar 25)
(:baz hello :boop nil)
(:bar 42)))
((10 25 nil) (nil nil hello) (nil 42 nil))
fn!
(mapcar (fn! (symbol-name %)) '(hello world))
("hello" "world")
(seq-sort (fn! (string-lessp (symbol-name %1)
(symbol-name %2)))
'(bonzo foo bar buddy doomguy baz zombies))
(bar baz bonzo buddy doomguy foo zombies)
(format "You passed %d arguments to this function"
(funcall (fn! (length %*)) :foo :bar :baz "hello" 123 t))
"You passed 6 arguments to this function"
letenv!
(letenv! (("SHELL" "/bin/sh"))
(shell-command-to-string "echo $SHELL"))
"/bin/sh\n"
load!
;;; Lets say we're in ~/.doom.d/config.el
(load! "lisp/module") ; loads ~/.doom.d/lisp/module.el
(load! "somefile" doom-emacs-dir) ; loads ~/.emacs.d/somefile.el
(load! "anotherfile" doom-private-dir) ; loads ~/.doom.d/anotherfile.el
;; If you don't want a `load!' call to throw an error if the file doesn't exist:
(load! "~/.maynotexist" nil t)
map!
(map! :map magit-mode-map
:m "C-r" 'do-something ; C-r in motion state
:nv "q" 'magit-mode-quit-window ; q in normal+visual states
"C-x C-r" 'a-global-keybind
:g "C-x C-r" 'another-global-keybind ; same as above
(:when IS-MAC
:n "M-s" 'some-fn
:i "M-o" (cmd! (message "Hi"))))
(map! (:when (modulep! :completion company) ; Conditional loading
:i "C-@" #'+company/complete
(:prefix "C-x" ; Use a prefix key
:i "C-l" #'+company/whole-lines)))
(map! (:when (modulep! :lang latex) ; local conditional
(:map LaTeX-mode-map
:localleader ; Use local leader
:desc "View" "v" #'TeX-view)) ; Add which-key description
:leader ; Use leader key from now on
:desc "Eval expression" ";" #'eval-expression)
These are side-by-side comparisons, showing how to bind keys with and without
map!
:
;; bind a global key
(global-set-key (kbd "C-x y") #'do-something)
(map! "C-x y" #'do-something)
;; bind a key on a keymap
(define-key emacs-lisp-mode-map (kbd "C-c p") #'do-something)
(map! :map emacs-lisp-mode-map "C-c p" #'do-something)
;; unbind a key defined elsewhere
(define-key lua-mode-map (kbd "SPC m b") nil)
(map! :map lua-mode-map "SPC m b" nil)
;; bind multiple keys
(global-set-key (kbd "C-x x") #'do-something)
(global-set-key (kbd "C-x y") #'do-something-else)
(global-set-key (kbd "C-x z") #'do-another-thing)
(map! "C-x x" #'do-something
"C-x y" #'do-something-else
"C-x z" #'do-another-thing)
;; bind global keys in normal mode
(evil-define-key* 'normal 'global
(kbd "C-x x") #'do-something
(kbd "C-x y") #'do-something-else
(kbd "C-x z") #'do-another-thing)
(map! :n "C-x x" #'do-something
:n "C-x y" #'do-something-else
:n "C-x z" #'do-another-thing)
;; or on a deferred keymap
(evil-define-key 'normal emacs-lisp-mode-map
(kbd "C-x x") #'do-something
(kbd "C-x y") #'do-something-else
(kbd "C-x z") #'do-another-thing)
(map! :map emacs-lisp-mode-map
:n "C-x x" #'do-something
:n "C-x y" #'do-something-else
:n "C-x z" #'do-another-thing)
;; or multiple maps
(dolist (map (list emacs-lisp-mode go-mode-map ivy-minibuffer-map))
(evil-define-key '(normal insert) map
"a" #'a
"b" #'b
"c" #'c))
(map! :map (emacs-lisp-mode go-mode-map ivy-minibuffer-map)
:ni "a" #'a
:ni "b" #'b
:ni "c" #'c)
;; or in multiple states (order of states doesn't matter)
(evil-define-key* '(normal visual) emacs-lisp-mode-map (kbd "C-x x") #'do-something)
(evil-define-key* 'insert emacs-lisp-mode-map (kbd "C-x x") #'do-something-else)
(evil-define-key* '(visual normal insert emacs) emacs-lisp-mode-map (kbd "C-x z") #'do-another-thing)
(map! :map emacs-lisp-mode
:nv "C-x x" #'do-something ; normal+visual
:i "C-x y" #'do-something-else ; insert
:vnie "C-x z" #'do-another-thing) ; visual+normal+insert+emacs
;; You can nest map! calls:
(evil-define-key* '(normal visual) emacs-lisp-mode-map (kbd "C-x x") #'do-something)
(evil-define-key* 'normal go-lisp-mode-map (kbd "C-x x") #'do-something-else)
(map! (:map emacs-lisp-mode :nv "C-x x" #'do-something)
(:map go-lisp-mode :n "C-x x" #'do-something-else))
package!
;; To install a package that can be found on ELPA or any of the sources
;; specified in `straight-recipe-repositories':
(package! evil)
(package! js2-mode)
(package! rainbow-delimiters)
;; To disable a package included with Doom (which will no-op all its `after!'
;; and `use-package!' blocks):
(package! evil :disable t)
(package! rainbow-delimiters :disable t)
;; To install a package from a github repo
(package! so-long :recipe (:host github :repo "hlissner/emacs-so-long"))
;; If a package is particularly big and comes with submodules you don't need,
;; you can tell the package manager not to clone the repo recursively:
(package! ansible :recipe (:nonrecursive t))
;; To pin a package to a specific commit:
(package! evil :pin "e7bc39de2f9")
;; ...or branch:
(package! evil :recipe (:branch "stable"))
;; To unpin a pinned package:
(package! evil :pin nil)
;; If you share your config between two computers, and don't want bin/doom
;; refresh to delete packages used only on one system, use :ignore
(package! evil :ignore (not (equal system-name "my-desktop")))
pushnew!
(let ((list '(a b c)))
(pushnew! list 'c 'd 'e)
list)
(e d a b c)
prependq!
(let ((x '(a b c)))
(prependq! x '(c d e))
x)
(c d e a b c)
(let ((x '(a b c))
(y '(c d e))
(z '(f g)))
(prependq! x y z '(h))
x)
(c d e f g h a b c)
quiet!
;; Enters recentf-mode without extra output
(quiet! (recentf-mode +1))
remove-hook!
;; With only one hook and one function, this is identical to `remove-hook'. In
;; that case, use that instead.
(remove-hook! 'some-mode-hook #'enable-something)
;; Removing N functions from M hooks
(remove-hook! some-mode #'enable-something #'and-another)
(remove-hook! some-mode #'(enable-something and-another))
(remove-hook! '(one-mode-hook second-mode-hook) #'enable-something)
(remove-hook! (one-mode second-mode) #'enable-something)
;; Removing buffer-local hooks
(remove-hook! (one-mode second-mode) :local #'enable-something)
;; Removing arbitrary forms (must be exactly the same as the definition)
(remove-hook! (one-mode second-mode) (setq v 5) (setq a 2))
setq!
;; Each of these have a setter associated with them, which must be triggered in
;; order for their new values to have an effect.
(setq! evil-want-Y-yank-to-eol nil
evil-want-C-u-scroll nil
evil-want-C-d-scroll nil)
setq-hook!
;; Set multiple variables after a hook
(setq-hook! 'markdown-mode-hook
line-spacing 2
fill-column 80)
;; Set variables after multiple hooks
(setq-hook! '(eshell-mode-hook term-mode-hook)
hscroll-margin 0)
unsetq-hook!
(unsetq-hook! 'markdown-mode-hook line-spacing)
;; Removes the following variable hook
(setq-hook! 'markdown-mode-hook line-spacing 2)
;; Removing N variables from M hooks
(unsetq-hook! some-mode enable-something and-another)
(unsetq-hook! some-mode (enable-something and-another))
(unsetq-hook! '(one-mode-hook second-mode-hook) enable-something)
(unsetq-hook! (one-mode second-mode) enable-something)
use-package!
;; Use after-call to load package before hook
(use-package! projectile
:after-call (pre-command-hook after-find-file dired-before-readin-hook))
;; defer recentf packages one by one
(use-package! recentf
:defer-incrementally easymenu tree-widget timer
:after-call after-find-file)
;; This is equivalent to :defer-incrementally (abc)
(use-package! abc
:defer-incrementally t)