Add core-keybinds.el
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Henrik Lissner
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72577b823c
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4 changed files with 205 additions and 153 deletions
152
core/core-lib.el
152
core/core-lib.el
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@ -135,157 +135,5 @@ Examples:
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(t (user-error "@associate invalid rules for mode [%s] (in %s) (match %s) (files %s)"
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mode in match files))))))
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;; Register keywords for proper indentation (see `@map')
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(put ':prefix 'lisp-indent-function 'defun)
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(put ':map 'lisp-indent-function 'defun)
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(put ':after 'lisp-indent-function 'defun)
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(put ':when 'lisp-indent-function 'defun)
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(put ':unless 'lisp-indent-function 'defun)
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(put ':leader 'lisp-indent-function 'defun)
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(put ':localleader 'lisp-indent-function 'defun)
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(defmacro @map (&rest rest)
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"A nightmare of a key-binding macro that will use `evil-define-key*',
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`define-key', `local-set-key' and `global-set-key' depending on context and
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plist key flags. It was designed to make binding multiple keys more concise,
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like in vim.
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If evil isn't loaded, it will ignore evil-specific bindings.
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Yes, it tries to do too much. Yes, I only did it to make the \"frontend\" config
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that little bit more concise. Yes, I could simply have used the above functions.
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But it takes a little insanity to custom write your own emacs.d, so what else
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were you expecting?
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States
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:n normal
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:v visual
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:i insert
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:e emacs
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:o operator
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:m motion
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:r replace
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:L local
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These can be combined (order doesn't matter), e.g. :nvi will apply to
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normal, visual and insert mode. The state resets after the following
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key=>def pair.
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Capitalize the state flag to make it a local binding.
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If omitted, the keybind will be defined globally.
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Flags
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(:map [KEYMAP] [...]) ; inner keybinds are applied to KEYMAP
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(:prefix [PREFIX] [...]) ; assign prefix to all inner keybindings
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(:after [FEATURE] [...]) ; apply keybinds when [FEATURE] loads
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Conditional keybinds
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(:when [CONDITION] [...])
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(:unless [CONDITION] [...])
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Example
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(@map :map magit-mode-map
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:m \"C-r\" 'do-something ; assign C-r in motion state
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:nv \"q\" 'magit-mode-quit-window ; assign to 'q' in normal and visual states
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\"C-x C-r\" 'a-global-keybind
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(:when IS-MAC
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:n \"M-s\" 'some-fn
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:i \"M-o\" (lambda (interactive) (message \"Hi\"))))"
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(let ((keymaps (if (boundp 'keymaps) keymaps))
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(prefix (if (boundp 'prefix) prefix))
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(state-map '(("n" . normal)
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("v" . visual)
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("i" . insert)
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("e" . emacs)
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("o" . operator)
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("m" . motion)
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("r" . replace)))
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local key def states forms)
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(while rest
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(setq key (pop rest))
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(cond
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;; it's a sub expr
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((listp key)
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(push (macroexpand `(@map ,@key)) forms))
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;; it's a flag
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((keywordp key)
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(when (memq key '(:leader :localleader))
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(cond ((eq key :leader)
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(push '+evil-leader rest))
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((eq key :localleader)
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(push '+evil-localleader rest)))
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(setq key :prefix))
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(pcase key
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(:ignore)
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(:prefix
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(let ((def (pop rest)))
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(setq prefix
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(if (or (symbolp def) (listp def))
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`(vconcat ,prefix (if (stringp ,def) (kbd ,def) ,def))
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`(vconcat ,prefix ,(if (stringp def) (kbd def) def))))))
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(:map (setq keymaps (-list (pop rest))))
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(:after (prog1 `((@after ,(pop rest) ,(macroexpand `(@map ,@rest)))) (setq rest '())))
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(:when (prog1 `((if ,(pop rest) ,(macroexpand `(@map ,@rest)))) (setq rest '())))
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(:unless (prog1 `((if (not ,(pop rest)) ,(macroexpand `(@map ,@rest)))) (setq rest '())))
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(otherwise ; might be a state prefix
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(mapc (lambda (letter)
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(cond ((assoc letter state-map)
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(push (cdr (assoc letter state-map)) states))
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((string= letter "L")
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(setq local t))
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(t (user-error "Invalid mode prefix %s in key %s" letter key))))
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(split-string (substring (symbol-name key) 1) "" t))
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(unless states
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(user-error "Unrecognized keyword %s" key))
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(when local
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(cond ((= (length states) 0)
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(user-error "local keybinding for %s must accompany another state" key))
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((> (length keymaps) 0)
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(user-error "local keybinding for %s cannot accompany a keymap" key)))))))
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;; It's a key-def pair
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((or (stringp key)
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(characterp key)
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(vectorp key))
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(unwind-protect
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(catch 'skip
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(when (stringp key)
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(setq key (kbd key)))
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(when prefix
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(setq key (append prefix (list key))))
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(unless (> (length rest) 0)
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(user-error "Map has no definition for %s" key))
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(setq def (pop rest))
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(push (cond ((and keymaps states)
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(unless (featurep 'evil)
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(throw 'skip 'evil))
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`(progn
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,@(mapcar (lambda (keymap) `(evil-define-key* ',states ,keymap ,key ,def))
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keymaps)))
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(keymaps
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`(progn
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,@(mapcar (lambda (keymap) `(define-key ,keymap ,key ,def))
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keymaps)))
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(states
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(unless (featurep 'evil)
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(throw 'skip 'evil))
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`(progn
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,@(mapcar (lambda (state)
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`(define-key
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,(intern (format "evil-%s-state-%smap" state (if local "local-" "")))
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,key ,def))
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states)))
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(t `(,(if local 'local-set-key 'global-set-key)
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,key ,def)))
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forms))
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(setq states '()
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local nil)))
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(t (user-error "Invalid key %s" key))))
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`(progn ,@(reverse forms))))
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(provide 'core-lib)
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;;; core-lib.el ends here
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