244 lines
10 KiB
EmacsLisp
244 lines
10 KiB
EmacsLisp
;;; core-lib.el
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(defmacro λ! (&rest body)
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"A shortcut for inline keybind lambdas."
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`(lambda () (interactive) ,@body))
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(defmacro after! (feature &rest forms)
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"A smart wrapper around `with-eval-after-load', that supresses warnings
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during compilation."
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(declare (indent defun) (debug t))
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`(,(if (or (not (boundp 'byte-compile-current-file))
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(not byte-compile-current-file)
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(if (symbolp feature)
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(require feature nil :no-error)
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(load feature :no-message :no-error)))
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'progn
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(message "after: cannot find %s" feature)
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'with-no-warnings)
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(with-eval-after-load ',feature
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(let ((package-name ',feature))
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,@forms))))
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(defmacro add-hook! (hook &rest func-or-forms)
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"A convenience macro for `add-hook'.
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HOOK can be one hook or a list of hooks. If the hook(s) are not quoted, -hook is
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appended to them automatically. If they are quoted, they are used verbatim.
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FUNC-OR-FORMS can be a quoted symbol, a list of quoted symbols, or forms. Forms will be
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wrapped in a lambda. A list of symbols will expand into a series of add-hook calls.
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Examples:
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(add-hook! 'some-mode-hook 'enable-something)
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(add-hook! some-mode '(enable-something and-another))
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(add-hook! '(one-mode-hook second-mode-hook) 'enable-something)
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(add-hook! (one-mode second-mode) 'enable-something)
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(add-hook! (one-mode second-mode) (setq v 5) (setq a 2))"
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(declare (indent defun) (debug t))
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(unless func-or-forms
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(error "add-hook!: FUNC-OR-FORMS is empty"))
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(let* ((val (car func-or-forms))
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(quoted-p (eq (car-safe hook) 'quote))
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(hook (if quoted-p (cadr hook) hook))
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(funcs (if (eq (car-safe val) 'quote)
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(if (cdr-safe (cadr val))
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(cadr val)
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(list (cadr val)))
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(list func-or-forms))))
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(macroexp-progn
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(mapcar (lambda (f)
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(let ((func (if (symbolp f) `(quote ,f) `(lambda (&rest _) ,@func-or-forms))))
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(macroexp-progn
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(mapcar (lambda (h)
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`(add-hook ',(if quoted-p h (intern (format "%s-hook" h))) ,func))
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(-list hook)))))
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funcs))))
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(defmacro associate! (mode &rest rest)
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"Associate a major or minor mode to certain patterns and project files."
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(declare (indent 1))
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(let ((minor (plist-get rest :minor))
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(in (plist-get rest :in))
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(match (plist-get rest :match))
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(files (plist-get rest :files))
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(pred (plist-get rest :when)))
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`(progn
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(,@(cond ((or files in pred)
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(when (and files (not (or (listp files) (stringp files))))
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(user-error "associate! :files expects a string or list of strings"))
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(let ((hook-name (intern (format "doom--init-mode-%s" mode))))
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`(progn
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(defun ,hook-name ()
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(when (and ,(if match `(if buffer-file-name (string-match-p ,match buffer-file-name)) t)
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(or ,(not files)
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(and (boundp ',mode)
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(not ,mode)
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(doom-project-has-files ,@(-list files))))
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(or (not ,pred)
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(funcall ,pred buffer-file-name)))
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(,mode 1)))
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,@(if (and in (listp in))
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(mapcar (lambda (h) `(add-hook ',h ',hook-name))
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(mapcar (lambda (m) (intern (format "%s-hook" m))) in))
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`((add-hook 'find-file-hook ',hook-name))))))
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(match
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`(add-to-list ',(if minor 'doom-auto-minor-mode-alist 'auto-mode-alist)
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(cons ,match ',mode)))
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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 ':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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`evil-define-key*', `define-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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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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:unset [KEY] ; unset key
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(:map [KEYMAP] [...]) ; apply inner keybinds to KEYMAP
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(:map* [KEYMAP] [...]) ; apply inner keybinds to KEYMAP (deferred)
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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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(defer (if (boundp 'defer) defer))
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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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(push
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(reverse
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(cond
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;; it's a sub expr
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((listp key)
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`(,(macroexpand `(map! ,@key))))
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;; it's a flag
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((keywordp key)
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(when (cond ((eq key :leader)
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(push doom-evil-leader rest))
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((eq key :localleader)
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(push doom-evil-localleader rest)))
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(setq key :prefix))
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(pcase key
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(:prefix (setq prefix (concat prefix (kbd (pop rest)))) nil)
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(:map (setq keymaps (-list (pop rest))) nil)
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(:map* (setq defer t keymaps (-list (pop rest))) nil)
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(:unset `(,(macroexpand `(map! ,(kbd (pop rest)) nil))))
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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 (assoc "L" states)
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(cond ((= (length states) 1)
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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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nil)))
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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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(when (stringp key)
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(setq key (kbd key)))
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(when prefix
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(setq key (cond ((vectorp key) (vconcat prefix key))
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(t (concat prefix 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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(let (out-forms)
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(cond ((and keymaps states)
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(mapc (lambda (keymap)
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(push `(,(if defer 'evil-define-key 'evil-define-key*)
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',states ,keymap ,key ,def)
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out-forms))
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keymaps))
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(keymaps
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(mapc (lambda (keymap) (push `(define-key ,keymap ,key ,def) out-forms))
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keymaps))
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(states
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(mapc (lambda (state)
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(push `(define-key
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(evil-state-property ',state ,(if local :local-keymap :keymap) t)
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,key ,def)
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out-forms))
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states))
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(t (push `(,(if local 'local-set-key 'global-set-key)
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,key ,def)
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out-forms)))
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(setq states '()
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local nil)
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out-forms))
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(t (user-error "Invalid key %s" key))))
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forms))
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`(progn ,@(apply #'nconc (delete nil (delete (list nil) (reverse forms)))))))
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(provide 'core-lib)
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;;; core-lib.el ends here
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