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;;; mm-keybindings.el --- Emacs keybindings -*- lexical-binding: t; -*-
(require 'editing)
;; The following keys are either unbound and are free to populate, or are
;; bound to functions I don’t care for:
;; ‘C-i’, ‘C-j’, ‘C-o’, ‘C-{’, ‘C-}’, ‘C-|’, ‘C-/’, ‘C-\;’, ‘C-:’
^L
;;; Helper Macros
(defmacro mm-keymap-set (keymap &rest definitions)
(declare (indent 1))
(unless (cl-evenp (length definitions))
(user-error "Expected an even-number of elements in DEFINITIONS."))
`(cl-loop for (from to) on (list ,@definitions) by #'cddr
do (keymap-set ,keymap from to)))
(defmacro mm-keymap-set-repeating (keymap &rest definitions)
(declare (indent 1))
(unless (cl-evenp (length definitions))
(user-error "Expected an even-number of elements in DEFINITIONS."))
(let ((keymap-gen (gensym "mm-keybindings--repeat-map-")))
`(progn
(defvar-keymap ,keymap-gen)
(cl-loop for (from to) on (list ,@definitions) by #'cddr
do (progn
(keymap-set ,keymap-gen from to)
(put to 'repeat-map ',keymap-gen))))))
(defmacro mm-keymap-remap (keymap &rest commands)
"Define command remappings for a given KEYMAP.
COMMANDS is a sequence of unquoted commands. For each pair of COMMANDS
the first command is remapped to the second command."
(declare (indent 1))
(unless (cl-evenp (length commands))
(user-error "Expected an even-number of elements in COMMANDS."))
(macroexp-progn
(cl-loop for (from to) in (seq-partition commands 2)
collect `(keymap-set
,keymap
,(concat "<remap> <" (symbol-name from) ">")
#',to))))
^L
;;; Support QMK Hyper
(defun mm-qmk-hyper-as-hyper (args)
(let ((chord (cadr args)))
(when (string-prefix-p "H-" chord)
(setf (cadr args) (concat "C-M-S-s" (substring chord 1)))))
args)
;; Both ‘keymap-global-set’ and ‘keymap-local-set’ call ‘keymap-set’
;; internally, so this advice covers all cases
(advice-add #'keymap-set :filter-args #'mm-qmk-hyper-as-hyper)
^L
;;; Disable ESC as Meta
(keymap-global-set "<escape>" #'ignore)
^L
;;; Enable Repeat Bindings
(defun mm-enable-repeat-mode ()
"Enable `repeat-mode' without polluting the echo area."
(mm-with-suppressed-output
(repeat-mode)))
(use-package repeat
:hook (after-init . mm-enable-repeat-mode)
:custom
(repeat-exit-timeout 5))
^L
;;; Remap Existing Bindings
(mm-keymap-remap global-map
backward-delete-char-untabify backward-delete-char
capitalize-word capitalize-dwim
downcase-word downcase-dwim
upcase-word upcase-dwim
delete-indentation e/join-current-and-next-line
kill-ring-save e/kill-ring-save-dwim
mark-sexp e/mark-entire-sexp
mark-word e/mark-entire-word
open-line e/open-line
transpose-chars e/transpose-previous-chars
transpose-lines e/transpose-current-and-next-lines)
(with-eval-after-load 'cc-vars
(setopt c-backspace-function #'backward-delete-char))
^L
;;; Remove Unwanted Bindings
(keymap-global-unset "C-x C-c" :remove) ; ‘capitalize-region’
(keymap-global-unset "C-x C-l" :remove) ; ‘downcase-region’
(keymap-global-unset "C-x C-u" :remove) ; ‘upcase-region’
^L
;;; Bind Commands Globally
(mm-keymap-set global-map
"<next>" #'e/scroll-up
"<prior>" #'e/scroll-down
"C-<next>" #'forward-page
"C-<prior>" #'backward-page
"C-." #'repeat
"C-/" #'e/mark-line-dwim
"C-c d" #'duplicate-dwim
"C-c t a" #'e/align-regexp
"C-c t f" #'fill-paragraph
"C-c t s" #'sort-lines)
(mm-keymap-set-repeating global-map
"j" #'e/join-current-and-next-line
"J" #'join-line)
(with-eval-after-load 'increment
(mm-keymap-set-repeating global-map
"d" #'decrement-number-at-point
"i" #'increment-number-at-point))
^L
;;; Display Available Keybindings
(use-package which-key
:hook after-init
:custom
(which-key-dont-use-unicode nil)
(which-key-ellipsis "…")
(wihch-key-idle-delay .5))
(provide 'mm-keybindings)
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