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|
;;; evil-leader.el --- let there be <leader>
;; Copyright (C) 2011-2013 by Michael Markert
;; Author: Michael Markert <markert.michael@googlemail.com>
;; URL: http://github.com/cofi/evil-leader
;; Package-Version: 20140606.543
;; Git-Repository: git://github.com/cofi/evil-leader.git
;; Created: 2011-09-13
;; Version: 0.4.3
;; Keywords: evil vim-emulation leader
;; Package-Requires: ((evil "0"))
;; This file is not part of GNU Emacs.
;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;; Known Bugs:
;; See http://github.com/cofi/evil-leader/issues
;; Install:
;; (require 'evil-leader)
;; Usage:
;;
;; (global-evil-leader-mode)
;;
;; to enable `evil-leader' in every buffer where `evil' is enabled.
;;
;; Note: You should enable `global-evil-leader-mode' before you enable
;; `evil-mode', otherwise `evil-leader' won't be enabled in initial
;; buffers (*scratch*, *Messages*, ...).
;;
;; Use `evil-leader/set-key' to bind keys in the leader map.
;; For example:
;;
;; (evil-leader/set-key "e" 'find-file)
;;
;; You can also bind several keys at once:
;;
;; (evil-leader/set-key
;; "e" 'find-file
;; "b" 'switch-to-buffer
;; "k" 'kill-buffer)
;;
;; The key map can of course be filled in several places.
;;
;; After you set up the key map you can access the bindings by pressing =<leader>=
;; (default: \) and the key(s). E.g. \ e would call `find-file' to open a file.
;;
;; If you wish to change so you can customize =evil-leader/leader= or call
;; `evil-leader/set-leader', e.g. (evil-leader/set-leader ",") to change it to
;; ",".
;; The leader has to be readable by `read-kbd-macro', so using Space as a
;; prefix key would be (evil-leader/set-leader "<SPC>").
;;
;; Beginning with version 0.3 evil-leader has support for mode-local bindings:
;;
;; (evil-leader/set-key-for-mode 'emacs-lisp-mode "b" 'byte-compile-file)
;;
;; Again, you can bind several keys at once.
;;
;; A mode-local binding shadows a normal mode-independent binding.
;;; Code:
(require 'evil)
(defvar evil-leader--default-map (make-sparse-keymap)
"Keymap used for mode-independent leader bindings.")
(defvar evil-leader--mode-maps nil
"Alist of mode-local leader bindings, shadows mode-independent bindings.")
;;; customization
(defgroup evil-leader nil
"<leader> support for evil."
:group 'evil
:prefix 'evil-leader/)
(defcustom evil-leader/leader "\\"
"The <leader> key, used to access keys defined by `evil-leader/set-key' in normal and visual state.
Must be readable by `read-kbd-macro'. For example: \",\"."
:type 'string
:group 'evil-leader)
(defcustom evil-leader/non-normal-prefix "C-"
"Prefix for leader-map in insert- and emacs-state.
`evil-leader/in-all-states' has to be non-nil for this to be set.
The combination has to be readable by `read-kbd-macro'."
:type 'string
:group 'evil-leader)
(defcustom evil-leader/no-prefix-mode-rx nil
"List of regular expressions for mode names where `evil-leader/leader' is used regardless of the state.
If the current major mode is matched by one of the regular expressions
`evil-leader/leader' is installed in emacs/insert state without
the prefix additionally to the prefixed key.
`evil-leader/in-all-states' has to be non-nil for this setting to have any effect."
:type 'list
:group 'evil-leader)
(defcustom evil-leader/in-all-states nil
"If is non-nil leader-map is accessible by <prefixed-leader> in emacs/insert state.
<prefixed-leader> is `evil-leader/non-normal-prefix' + `evil-leader/leader'"
:type 'boolean
:group 'evil-leader)
;;;###autoload
(define-minor-mode global-evil-leader-mode
"Global minor mode for <leader> support."
nil nil nil
(if global-evil-leader-mode
(add-hook 'evil-local-mode-hook #'evil-leader-mode t)
(remove-hook 'evil-local-mode-hook #'evil-leader-mode t)))
;;;###autoload
(define-minor-mode evil-leader-mode
"Minor mode to enable <leader> support."
:init-value nil
:keymap nil
(let* ((prefixed (read-kbd-macro (concat evil-leader/non-normal-prefix evil-leader/leader)))
(no-prefix (read-kbd-macro evil-leader/leader))
(mode-map (cdr (assoc major-mode evil-leader--mode-maps)))
(map (or mode-map evil-leader--default-map))
(no-prefix-rx (if evil-leader/no-prefix-mode-rx
(mapconcat #'identity evil-leader/no-prefix-mode-rx "\\|")
nil)))
(if evil-leader-mode
(progn
(evil-normalize-keymaps)
(define-key evil-motion-state-local-map no-prefix map)
(define-key evil-normal-state-local-map no-prefix map)
(when evil-leader/in-all-states
(define-key evil-emacs-state-local-map prefixed map)
(define-key evil-insert-state-local-map prefixed map))
(when (and no-prefix-rx (string-match-p no-prefix-rx (symbol-name major-mode)))
(define-key evil-emacs-state-local-map no-prefix map)
(define-key evil-insert-state-local-map no-prefix map)))
(define-key evil-motion-state-local-map no-prefix nil)
(define-key evil-normal-state-local-map no-prefix nil)
(when evil-leader/in-all-states
(define-key evil-emacs-state-local-map prefixed nil)
(define-key evil-insert-state-local-map prefixed nil)
(when (and no-prefix-rx (string-match-p no-prefix-rx (symbol-name major-mode)))
(define-key evil-emacs-state-local-map no-prefix nil)
(define-key evil-insert-state-local-map no-prefix nil))))))
(defun evil-leader/set-leader (key &optional prefix)
"Set leader key to `key' and non-normal-prefix to `prefix' and remove old bindings.
Passing `nil' as `prefix' leaves prefix unchanged."
(let ((global-on global-evil-leader-mode)
(local-on evil-leader-mode))
(when local-on
(evil-leader-mode -1))
(when global-on
(global-evil-leader-mode -1))
(setq evil-leader/leader key)
(when prefix
(setq evil-leader/non-normal-prefix prefix))
(if global-on
(global-evil-leader-mode 1)
(when local-on
(evil-leader-mode 1)))))
;;;###autoload
(defun evil-leader/set-key (key def &rest bindings)
"Bind `key' to command `def' in `evil-leader/default-map'.
Key has to be readable by `read-kbd-macro' and `def' a command.
Accepts further `key' `def' pairs."
(interactive "kKey: \naCommand: ")
(evil-leader--def-keys evil-leader--default-map key def bindings))
(put 'evil-leader/set-key 'lisp-indent-function 'defun)
;;;###autoload
(defun evil-leader/set-key-for-mode (mode key def &rest bindings)
"Create keybindings for major-mode `mode' with `key' bound to command `def'.
See `evil-leader/set-key'."
(interactive "SMode: \nkKey: \naCommand: ")
(let ((mode-map (cdr (assoc mode evil-leader--mode-maps))))
(unless mode-map
(setq mode-map (make-sparse-keymap))
(set-keymap-parent mode-map evil-leader--default-map)
(push (cons mode mode-map) evil-leader--mode-maps))
(evil-leader--def-keys mode-map key def bindings)))
(put 'evil-leader/set-key-for-mode 'lisp-indent-function 'defun)
(defun evil-leader--def-keys (map key def bindings)
(while key
(define-key map (read-kbd-macro key) def)
(setq key (pop bindings)
def (pop bindings))))
(provide 'evil-leader)
;;; evil-leader.el ends here
|
