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+;;; evil-core.el --- Core functionality -*- lexical-binding: t -*-
+;; Author: Vegard Øye <vegard_oye at hotmail.com>
+;; Maintainer: Vegard Øye <vegard_oye at hotmail.com>
+
+;; Version: 1.15.0
+
+;;
+;; This file is NOT part of GNU Emacs.
+
+;;; License:
+
+;; This file is part of Evil.
+;;
+;; Evil 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.
+;;
+;; Evil 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 Evil. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Evil is defined as a globalized minor mode, enabled with the toggle
+;; function `evil-mode'. This in turn enables `evil-local-mode' in
+;; every buffer, which sets up the buffer's state.
+;;
+;; Each state has its own keymaps, and these keymaps have status as
+;; "emulation keymaps" with priority over regular keymaps. Emacs
+;; maintains the following keymap hierarchy (highest priority first):
+;;
+;; * Overriding keymaps/overlay keymaps...
+;; * Emulation mode keymaps...
+;; - Evil keymaps...
+;; * Minor mode keymaps...
+;; * Local keymap (`local-set-key')
+;; * Global keymap (`global-set-key')
+;;
+;; Within this hierarchy, Evil arranges the keymaps for the current
+;; state as shown below:
+;;
+;; * Intercept keymaps...
+;; * Local state keymap
+;; * Minor-mode keymaps...
+;; * Auxiliary keymaps...
+;; * Overriding keymaps...
+;; * Global state keymap
+;; * Keymaps for other states...
+;;
+;; These keymaps are listed in `evil-mode-map-alist', which is listed
+;; in `emulation-mode-map-alist'.
+;;
+;; Most of the key bindings for a state are stored in its global
+;; keymap, which has a name such as `evil-normal-state-map'. (See the
+;; file evil-maps.el, which contains all the default key bindings.) A
+;; state also has a local keymap (`evil-normal-state-local-map'),
+;; which may contain user customizations for the current buffer.
+;; Furthermore, any Emacs mode may be assigned state bindings of its
+;; own by passing the mode's keymap to the function `evil-define-key'
+;; or `evil-define-minor-mode-key'. The former uses a specific map to
+;; define the key in while the latter associates the key with a
+;; particular mode. These mode-specific bindings are ultimately stored
+;; in so-called auxiliary and minor-mode keymaps respectively, which
+;; are sandwiched between the local keymap and the global keymap.
+;; Finally, the state may also activate the keymaps of other states
+;; (e.g., Normal state inherits bindings from Motion state).
+;;
+;; For integration purposes, a regular Emacs keymap may be "elevated"
+;; to emulation status by passing it to `evil-make-intercept-map' or
+;; `evil-make-overriding-map'. An "intercept" keymap has priority over
+;; all other Evil keymaps. (Evil uses this facility when debugging and
+;; for handling the "ESC" key in the terminal.) More common is the
+;; "overriding" keymap, which only has priority over the global state
+;; keymap. (This is useful for adapting key-heavy modes such as Dired,
+;; where all but a few keys should be left as-is and should not be
+;; shadowed by Evil's default bindings.)
+;;
+;; States are defined with the macro `evil-define-state', which
+;; creates a command for switching to the state. This command,
+;; for example `evil-normal-state' for Normal state, performs
+;; the following tasks:
+;;
+;; * Setting `evil-state' to the new state.
+;; * Refreshing the keymaps in `evil-mode-map-alist'.
+;; * Updating the mode line.
+;; - Normal state depends on `evil-normal-state-tag'.
+;; * Adjusting the cursor's appearance.
+;; - Normal state depends on `evil-normal-state-cursor'.
+;; * Displaying a message in the echo area.
+;; - Normal state depends on `evil-normal-state-message'.
+;; * Running hooks.
+;; - Normal state runs `evil-normal-state-entry-hook' when
+;; entering, and `evil-normal-state-exit-hook' when exiting.
+;;
+;; The various properties of a state can be accessed through their
+;; respective variables, or by passing a keyword and the state's name
+;; to the `evil-state-property' function. Evil defines the states
+;; Normal state ("normal"), Insert state ("insert"), Visual state
+;; ("visual"), Replace state ("replace"), Operator-Pending state
+;; ("operator"), Motion state ("motion") and Emacs state ("emacs").
+
+(require 'evil-common)
+
+;;; Code:
+
+(declare-function evil-emacs-state-p "evil-states")
+(declare-function evil-ex-p "evil-ex")
+(defvar evil-mode-buffers)
+
+(define-minor-mode evil-local-mode
+ "Minor mode for setting up Evil in a single buffer."
+ :init-value nil
+ (cond
+ ((evil-disabled-buffer-p)
+ ;; Don't leave the mode variable on in buffers where evil disabled, because
+ ;; functions that check this variable will get an incorrect result (e.g.,
+ ;; evil-refresh-cursor).
+ (setq evil-local-mode nil))
+ (evil-local-mode
+ (setq emulation-mode-map-alists
+ (evil-concat-lists '(evil-mode-map-alist)
+ emulation-mode-map-alists))
+ (evil-initialize-local-keymaps)
+ ;; restore the proper value of `major-mode' in Fundamental buffers
+ (when (eq major-mode 'turn-on-evil-mode)
+ (setq major-mode 'fundamental-mode))
+ (when (minibufferp)
+ (setq-local evil-default-state 'insert)
+ (setq-local evil-echo-state nil))
+ ;; The initial state is usually setup by `evil-initialize' when
+ ;; the major-mode in a buffer changes. This preliminary
+ ;; initialization is only for the case when `evil-local-mode' is
+ ;; called directly for the first time in a buffer.
+ (unless evil-state (evil-initialize-state))
+ (add-hook 'input-method-activate-hook 'evil-activate-input-method t t)
+ (add-hook 'input-method-deactivate-hook 'evil-deactivate-input-method t t)
+ (add-hook 'activate-mark-hook 'evil-visual-activate-hook nil t)
+ (add-hook 'pre-command-hook 'evil-repeat-pre-hook)
+ (add-hook 'post-command-hook 'evil-repeat-post-hook))
+ (t
+ (evil-refresh-mode-line)
+ (remove-hook 'activate-mark-hook 'evil-visual-activate-hook t)
+ (remove-hook 'input-method-activate-hook 'evil-activate-input-method t)
+ (remove-hook 'input-method-deactivate-hook 'evil-deactivate-input-method t)
+ (evil-change-state nil))))
+
+;; Make the variable permanent local. This is particular useful in
+;; conjunction with nXhtml/mumamo because mumamo does not touch these
+;; variables.
+(put 'evil-local-mode 'permanent-local t)
+
+(defun turn-on-evil-mode (&optional arg)
+ "Turn on Evil in the current buffer."
+ (interactive)
+ (evil-local-mode (or arg 1)))
+
+(defun turn-off-evil-mode (&optional arg)
+ "Turn off Evil in the current buffer."
+ (interactive)
+ (evil-local-mode (or arg -1)))
+
+;; The function `evil-initialize' should only be used to initialize
+;; `evil-local-mode' from the globalized minor-mode `evil-mode'. It is
+;; called whenever evil is enabled in a buffer for the first time or
+;; when evil is active and the major-mode of the buffer changes. In
+;; addition to enabling `evil-local-mode' it also sets the initial
+;; evil-state according to the major-mode.
+(defun evil-initialize ()
+ "Enable Evil in the current buffer, if appropriate.
+To enable Evil globally, do (evil-mode 1)."
+ (unless (and (minibufferp) (not evil-want-minibuffer))
+ (evil-local-mode 1)
+ (evil-initialize-state)))
+
+;;;###autoload (autoload 'evil-mode "evil" nil t)
+(define-globalized-minor-mode evil-mode
+ evil-local-mode evil-initialize)
+
+;; No hooks are run in Fundamental buffers, so other measures are
+;; necessary to initialize Evil in these buffers. When Evil is
+;; enabled globally, the default value of `major-mode' is set to
+;; `turn-on-evil-mode', so that Evil is enabled in Fundamental
+;; buffers as well. Then, the buffer-local value of `major-mode' is
+;; changed back to `fundamental-mode'. (Since the `evil-mode' function
+;; is created by a macro, we use `defadvice' to augment it.)
+(defadvice evil-mode (after start-evil activate)
+ "Enable Evil in Fundamental mode."
+ (if evil-mode
+ (progn
+ (when (eq (default-value 'major-mode) 'fundamental-mode)
+ ;; changed back by `evil-local-mode'
+ (setq-default major-mode 'turn-on-evil-mode))
+ (ad-enable-regexp "^evil")
+ (ad-activate-regexp "^evil")
+ (with-no-warnings (evil-esc-mode 1)))
+ (when (eq (default-value 'major-mode) 'turn-on-evil-mode)
+ (setq-default major-mode 'fundamental-mode))
+ (ad-disable-regexp "^evil")
+ (ad-update-regexp "^evil")
+ (with-no-warnings (evil-esc-mode -1))))
+
+(defun evil-change-state (state &optional message)
+ "Change the state to STATE.
+If STATE is nil, disable all states."
+ (let ((func (evil-state-property (or state evil-state) :toggle)))
+ (when (and (functionp func)
+ (or message (not (eq state evil-state))))
+ (funcall func (if state (and message 1) -1)))))
+
+(defmacro evil-save-state (&rest body)
+ "Save the current state; execute BODY; restore the state."
+ (declare (indent defun)
+ (debug t))
+ `(let* ((evil-state evil-state)
+ (evil-previous-state evil-previous-state)
+ (evil-previous-state-alist (copy-tree evil-previous-state-alist))
+ (evil-next-state evil-next-state)
+ (old-state evil-state)
+ (inhibit-quit t)
+ (buf (current-buffer)))
+ (unwind-protect
+ (progn ,@body)
+ (when (buffer-live-p buf)
+ (with-current-buffer buf
+ (evil-change-state old-state))))))
+
+(defmacro evil-with-state (state &rest body)
+ "Change to STATE and execute BODY without refreshing the display.
+Restore the previous state afterwards."
+ (declare (indent defun)
+ (debug t))
+ `(evil-without-display
+ (evil-save-state
+ (evil-change-state ',state)
+ ,@body)))
+
+(defun evil-initializing-p (&optional buffer)
+ "Whether Evil is in the process of being initialized."
+ (memq (or buffer (current-buffer)) evil-mode-buffers))
+
+(defun evil-initialize-state (&optional state buffer)
+ "Set up the initial state for BUFFER.
+BUFFER defaults to the current buffer.
+Uses STATE if specified, or calls `evil-initial-state-for-buffer'.
+See also `evil-set-initial-state'."
+ (with-current-buffer (or buffer (current-buffer))
+ (if state (evil-change-state state)
+ (evil-change-to-initial-state buffer))))
+(put 'evil-initialize-state 'permanent-local-hook t)
+
+(defun evil-initial-state-for-buffer-name (&optional name default)
+ "Return the initial Evil state to use for a buffer with name NAME.
+Matches the name against the regular expressions in
+`evil-buffer-regexps'. If none matches, returns DEFAULT."
+ (let ((name (if (stringp name) name (buffer-name name)))
+ regexp state)
+ (when (stringp name)
+ (catch 'done
+ (dolist (entry evil-buffer-regexps default)
+ (setq regexp (car entry)
+ state (cdr entry))
+ (when (string-match regexp name)
+ (throw 'done state)))))))
+
+(defun evil-disabled-buffer-p (&optional buffer)
+ "Whether Evil should be disabled in BUFFER."
+ (null (evil-initial-state-for-buffer-name buffer 'undefined)))
+
+(defun evil-initial-state-for-buffer (&optional buffer default)
+ "Return the initial Evil state to use for BUFFER.
+BUFFER defaults to the current buffer. Returns DEFAULT
+if no initial state is associated with BUFFER.
+See also `evil-initial-state'."
+ (with-current-buffer (or buffer (current-buffer))
+ (or (evil-initial-state-for-buffer-name (buffer-name))
+ (catch 'done
+ (dolist (mode minor-mode-map-alist)
+ (setq mode (car-safe mode))
+ (when (and (boundp mode) (symbol-value mode))
+ (when (setq mode (evil-initial-state mode))
+ (throw 'done mode)))))
+ (evil-initial-state major-mode nil t)
+ default)))
+
+(defun evil-initial-state (mode &optional default follow-parent checked-modes)
+ "Return the Evil state to use for MODE or its alias.
+Returns DEFAULT if no initial state is associated with MODE.
+The initial state for a mode can be set with
+`evil-set-initial-state'.
+
+If FOLLOW-PARENT is non-nil, also check parent modes of MODE and
+its alias. CHECKED-MODES is used internally and should not be set
+initially."
+ (cond
+ ((and mode (symbolp mode) (memq mode checked-modes))
+ (error "Circular reference detected in ancestors of %s\n%s"
+ major-mode checked-modes))
+ ((and mode (symbolp mode))
+ (let ((mode-alias (let ((func (symbol-function mode)))
+ (when (symbolp func)
+ func)))
+ state modes)
+ (or
+ (catch 'done
+ (dolist (entry (evil-state-property t :modes) default)
+ (setq state (car entry)
+ modes (symbol-value (cdr entry)))
+ (when (or (memq mode modes)
+ (and mode-alias
+ (memq mode-alias modes)))
+ (throw 'done state))))
+ (when follow-parent
+ (evil-initial-state (get mode 'derived-mode-parent)
+ nil t (cons mode checked-modes)))
+ (when follow-parent
+ (evil-initial-state (get mode-alias 'derived-mode-parent)
+ nil t (cons mode-alias checked-modes))))))))
+
+(defun evil-set-initial-state (mode state)
+ "Set the initial state for major mode MODE to STATE.
+This is the state the buffer comes up in."
+ (dolist (modes (evil-state-property t :modes))
+ (setq modes (cdr-safe modes))
+ (set modes (delq mode (symbol-value modes))))
+ (when state
+ (add-to-list (evil-state-property state :modes) mode)))
+
+(evil-define-command evil-change-to-initial-state
+ (&optional buffer message)
+ "Change the state of BUFFER to its initial state.
+This is the state the buffer came up in. If Evil is not activated
+then this function does nothing."
+ :keep-visual t
+ :suppress-operator t
+ (with-current-buffer (or buffer (current-buffer))
+ (when evil-local-mode
+ (evil-change-state (evil-initial-state-for-buffer
+ buffer (or evil-default-state 'normal))
+ message))))
+
+(evil-define-command evil-change-to-previous-state
+ (&optional buffer message)
+ "Change the state of BUFFER to its previous state."
+ :keep-visual t
+ :repeat abort
+ :suppress-operator t
+ (with-current-buffer (or buffer (current-buffer))
+ (let ((prev-state evil-previous-state)
+ (prev-prev-state (cdr-safe (assoc evil-previous-state
+ evil-previous-state-alist))))
+ (evil-change-state nil)
+ (when prev-prev-state
+ (setq evil-previous-state prev-prev-state))
+ (evil-change-state (or prev-state evil-default-state 'normal)
+ message))))
+
+;; When a buffer is created in a low-level way, it is invisible to
+;; Evil (as well as other globalized minor modes) because no hooks are
+;; run. This is appropriate since many buffers are used for throwaway
+;; purposes. Passing the buffer to `set-window-buffer' indicates
+;; otherwise, though, so advise this function to initialize Evil.
+(defadvice set-window-buffer (before evil)
+ "Initialize Evil in the displayed buffer."
+ (when evil-mode
+ (when (get-buffer (ad-get-arg 1))
+ (with-current-buffer (ad-get-arg 1)
+ (unless evil-local-mode
+ (evil-local-mode 1))))))
+
+;; Refresh cursor color.
+;; Cursor color can only be set for each frame but not for each buffer.
+(add-hook 'window-configuration-change-hook 'evil-refresh-cursor)
+(defadvice select-window (after evil activate)
+ (evil-refresh-cursor))
+
+(defun evil-generate-mode-line-tag (&optional state)
+ "Generate the evil mode-line tag for STATE."
+ (let ((tag (evil-state-property state :tag t)))
+ (when (functionp tag)
+ (setq tag (funcall tag)))
+ ;; prepare mode-line: add tooltip
+ (if (stringp tag)
+ (propertize tag
+ 'help-echo (evil-state-property state :name)
+ 'mouse-face 'mode-line-highlight)
+ tag)))
+
+(defun evil-refresh-mode-line (&optional state)
+ "Refresh mode line tag."
+ (when (listp mode-line-format)
+ (setq evil-mode-line-tag (evil-generate-mode-line-tag state))
+ ;; refresh mode line data structure
+ ;; first remove evil from mode-line
+ (setq mode-line-format (delq 'evil-mode-line-tag mode-line-format))
+ (let ((mlpos mode-line-format)
+ pred which where)
+ ;; determine before/after which symbol the tag should be placed
+ (cond
+ ((eq evil-mode-line-format 'before)
+ (setq where 'after which 'mode-line-position))
+ ((eq evil-mode-line-format 'after)
+ (setq where 'after which 'mode-line-modes))
+ ((consp evil-mode-line-format)
+ (setq where (car evil-mode-line-format)
+ which (cdr evil-mode-line-format))))
+ ;; find the cons-cell of the symbol before/after which the tag
+ ;; should be placed
+ (while (and mlpos
+ (let ((sym (or (car-safe (car mlpos)) (car mlpos))))
+ (not (eq which sym))))
+ (setq pred mlpos
+ mlpos (cdr mlpos)))
+ ;; put evil tag at the right position in the mode line
+ (cond
+ ((not mlpos)) ;; position not found, so do not add the tag
+ ((eq where 'before)
+ (if pred
+ (setcdr pred (cons 'evil-mode-line-tag mlpos))
+ (setq mode-line-format
+ (cons 'evil-mode-line-tag mode-line-format))))
+ ((eq where 'after)
+ (setcdr mlpos (cons 'evil-mode-line-tag (cdr mlpos)))))
+ (force-mode-line-update))))
+
+;; input methods should be disabled in non-insertion states
+(defun evil-activate-input-method ()
+ "Enable input method in states with :input-method non-nil."
+ (let (input-method-activate-hook
+ input-method-deactivate-hook)
+ (when (and evil-local-mode evil-state)
+ (setq evil-input-method current-input-method)
+ (unless (evil-state-property evil-state :input-method)
+ (deactivate-input-method)))))
+(put 'evil-activate-input-method 'permanent-local-hook t)
+
+(defun evil-deactivate-input-method ()
+ "Disable input method in all states."
+ (let (input-method-activate-hook
+ input-method-deactivate-hook)
+ (when (and evil-local-mode evil-state)
+ (setq evil-input-method nil))))
+(put 'evil-deactivate-input-method 'permanent-local-hook t)
+
+(defmacro evil-without-input-method-hooks (&rest body)
+ "Execute body with evil's activate/deactivate-input-method hooks deactivated.
+
+This allows input methods to be used in normal-state."
+ `(unwind-protect
+ (progn
+ (remove-hook 'input-method-activate-hook 'evil-activate-input-method t)
+ (remove-hook 'input-method-deactivate-hook
+ 'evil-deactivate-input-method t)
+ ,@body)
+ (progn
+ (add-hook 'input-method-activate-hook 'evil-activate-input-method nil t)
+ (add-hook 'input-method-deactivate-hook
+ 'evil-deactivate-input-method nil t))))
+
+(defadvice toggle-input-method (around evil)
+ "Refresh `evil-input-method'."
+ (cond
+ ((not evil-local-mode)
+ ad-do-it)
+ ((evil-state-property evil-state :input-method)
+ ad-do-it)
+ (t
+ (let ((current-input-method evil-input-method))
+ ad-do-it))))
+
+;; Local keymaps are implemented using buffer-local variables.
+;; However, unless a buffer-local value already exists,
+;; `define-key' acts on the variable's default (global) value.
+;; So we need to initialize the variable whenever we enter a
+;; new buffer or when the buffer-local values are reset.
+(defun evil-initialize-local-keymaps ()
+ "Initialize a buffer-local value for local keymaps as necessary.
+The initial value is that of `make-sparse-keymap'."
+ (dolist (entry evil-local-keymaps-alist)
+ (let ((map (cdr entry)))
+ (unless (and (keymapp (symbol-value map))
+ (local-variable-p map))
+ (set map (make-sparse-keymap))))))
+
+(defun evil-make-overriding-map (keymap &optional state copy)
+ "Give KEYMAP precedence over the global keymap of STATE.
+The keymap will have lower precedence than custom STATE bindings.
+If STATE is nil, give it precedence over all states.
+If COPY is t, create a copy of KEYMAP and give that
+higher precedence. See also `evil-make-intercept-map'."
+ (let ((key [override-state]))
+ (if (not copy)
+ (define-key keymap key (or state 'all))
+ (unless (keymapp copy)
+ (setq copy (assq-delete-all 'menu-bar (copy-keymap keymap))))
+ (define-key copy key (or state 'all))
+ (define-key keymap key copy))))
+
+(defun evil-make-intercept-map (keymap &optional state aux)
+ "Give KEYMAP precedence over all Evil keymaps in STATE.
+If STATE is nil, give it precedence over all states. If AUX is non-nil, make the
+auxiliary keymap corresponding to KEYMAP in STATE an intercept keymap instead of
+KEYMAP itself. See also `evil-make-overriding-map'."
+ (let ((key [intercept-state])
+ (keymap (if aux
+ (evil-get-auxiliary-keymap keymap state t t)
+ keymap)))
+ (define-key keymap key (or state 'all))))
+
+(defmacro evil-define-keymap (keymap doc &rest body)
+ "Define a keymap KEYMAP listed in `evil-mode-map-alist'.
+That means it will have precedence over regular keymaps.
+
+DOC is the documentation for the variable. BODY, if specified,
+is executed after toggling the mode. Optional keyword arguments
+may be specified before the body code:
+
+:mode VAR Mode variable. If unspecified, the variable
+ is based on the keymap name.
+:local BOOLEAN Whether the keymap should be buffer-local, that is,
+ reinitialized for each buffer.
+:func BOOLEAN Create a toggle function even if BODY is empty.
+
+\(fn KEYMAP DOC [[KEY VAL]...] BODY...)"
+ (declare (indent defun)
+ (doc-string 2)
+ (debug (&define name
+ [&optional stringp]
+ [&rest [keywordp sexp]]
+ def-body)))
+ (let ((func t)
+ arg intercept key local mode overriding)
+ (while (keywordp (car-safe body))
+ (setq key (pop body)
+ arg (pop body))
+ (cond
+ ((eq key :mode)
+ (setq mode arg))
+ ((eq key :local)
+ (setq local arg))
+ ((eq key :func)
+ (setq func arg))
+ ((eq key :intercept)
+ (setq intercept arg))
+ ((eq key :overriding)
+ (setq overriding arg))))
+ (setq mode (or mode
+ (intern (replace-regexp-in-string
+ "\\(?:-\\(?:mode-\\)?\\(?:key\\)?map\\)?$"
+ "-mode"
+ (symbol-name keymap)))))
+ `(progn
+ (defvar ,keymap ,(unless local '(make-sparse-keymap)))
+ (unless (get ',keymap 'variable-documentation)
+ (put ',keymap 'variable-documentation ,doc))
+ (defvar ,mode nil)
+ (unless (get ',mode 'variable-documentation)
+ (put ',mode 'variable-documentation ,doc))
+ (make-variable-buffer-local ',mode)
+ (put ',mode 'permanent-local t)
+ (when ,intercept
+ (evil-make-intercept-map ,keymap))
+ (when ,overriding
+ (evil-make-overriding-map ,keymap))
+ ,@(if local
+ `((make-variable-buffer-local ',keymap)
+ (put ',keymap 'permanent-local t)
+ (evil--add-to-alist 'evil-local-keymaps-alist
+ ',mode ',keymap))
+ `((evil--add-to-alist 'evil-global-keymaps-alist
+ ',mode ',keymap)
+ (evil--add-to-alist 'evil-mode-map-alist
+ ',mode ,keymap)))
+ ,(when (or body func)
+ `(defun ,mode (&optional arg)
+ ,@(when doc `(,doc))
+ (interactive)
+ (cond
+ ((numberp arg)
+ (setq ,mode (> arg 0)))
+ (t
+ (setq ,mode (not ,mode))))
+ ,@body))
+ ',keymap)))
+
+;; The ESC -> escape translation code has been provided by Stefan
+;; Monnier in the discussion of GNU Emacs bug #13793.
+(defun evil-esc-mode (&optional arg)
+ "Toggle interception of \\e (escape).
+Enable with positive ARG and disable with negative ARG.
+
+When enabled, `evil-esc-mode' modifies the entry of \\e in
+`input-decode-map'. If such an event arrives, it is translated to
+a plain 'escape event if no further event occurs within
+`evil-esc-delay' seconds. Otherwise no translation happens and
+the ESC prefix map (i.e. the map originally bound to \\e in
+`input-decode-map`) is returned."
+ (cond
+ ((or (null arg) (eq arg 0))
+ (evil-esc-mode (if evil-esc-mode -1 +1)))
+ ((> arg 0)
+ (unless evil-esc-mode
+ (setq evil-esc-mode t)
+ (add-hook 'after-make-frame-functions #'evil-init-esc)
+ (mapc #'evil-init-esc (frame-list))))
+ ((< arg 0)
+ (when evil-esc-mode
+ (remove-hook 'after-make-frame-functions #'evil-init-esc)
+ (mapc #'evil-deinit-esc (frame-list))
+ (setq evil-esc-mode nil)))))
+
+(defun evil-init-esc (frame)
+ "Update `input-decode-map' in terminal."
+ (with-selected-frame frame
+ (let ((term (frame-terminal frame)))
+ (when (and
+ (or (eq evil-intercept-esc 'always)
+ (and evil-intercept-esc
+ (eq (terminal-live-p term) t))) ; only patch tty
+ (not (terminal-parameter term 'evil-esc-map)))
+ (let ((evil-esc-map (lookup-key input-decode-map [?\e])))
+ (set-terminal-parameter term 'evil-esc-map evil-esc-map)
+ (define-key input-decode-map [?\e]
+ `(menu-item "" ,evil-esc-map :filter ,#'evil-esc)))))))
+
+(defun evil-deinit-esc (frame)
+ "Restore `input-decode-map' in terminal."
+ (with-selected-frame frame
+ (let ((term (frame-terminal frame)))
+ (when (terminal-live-p term)
+ (let ((evil-esc-map (terminal-parameter term 'evil-esc-map)))
+ (when evil-esc-map
+ (define-key input-decode-map [?\e] evil-esc-map)
+ (set-terminal-parameter term 'evil-esc-map nil)))))))
+
+(defun evil-esc (map)
+ "Translate \\e to 'escape if no further event arrives.
+This function is used to translate a \\e event either to 'escape
+or to the standard ESC prefix translation map. If \\e arrives,
+this function waits for `evil-esc-delay' seconds for another
+event. If no other event arrives, the event is translated to
+'escape, otherwise it is translated to the standard ESC prefix
+map stored in `input-decode-map'. If `evil-inhibit-esc' is
+non-nil or if evil is in emacs state, the event is always
+translated to the ESC prefix.
+
+The translation to 'escape happens only if the current command
+has indeed been triggered by \\e. In other words, this will only
+happen when the keymap is accessed from `read-key-sequence'. In
+particular, if it is access from `define-key' the returned
+mapping will always be the ESC prefix map."
+ (if (and (not evil-inhibit-esc)
+ (or evil-local-mode (evil-ex-p)
+ (active-minibuffer-window))
+ (not (evil-emacs-state-p))
+ (let ((keys (this-single-command-keys)))
+ (and (> (length keys) 0)
+ (= (aref keys (1- (length keys))) ?\e)))
+ (sit-for evil-esc-delay))
+ (prog1 [escape]
+ (when defining-kbd-macro
+ (end-kbd-macro)
+ (setq last-kbd-macro (vconcat last-kbd-macro [escape]))
+ (start-kbd-macro t t)))
+ map))
+
+(defun evil-state-p (sym)
+ "Whether SYM is the name of a state."
+ (assq sym evil-state-properties))
+
+(defun evil-state-keymaps (state &rest excluded)
+ "Return a keymap alist of keymaps activated by STATE.
+If STATE references other states in its :enable property,
+these states are recursively processed and added to the list.
+\(The EXCLUDED argument is an internal safeguard against
+infinite recursion, keeping track of processed states.)"
+ (let* ((state (or state evil-state))
+ (enable (evil-state-property state :enable))
+ (map (cons
+ (evil-state-property state :mode)
+ (evil-state-property state :keymap t)))
+ (local-map (cons
+ (evil-state-property state :local)
+ (evil-state-property state :local-keymap t)))
+ (minor-mode-maps (evil-state-minor-mode-keymaps state))
+ (aux-maps (evil-state-auxiliary-keymaps state))
+ (overriding-maps
+ (evil-state-overriding-keymaps state))
+ (intercept-maps
+ (evil-state-intercept-keymaps state))
+ (result `(,intercept-maps))
+ (remove-duplicates (null excluded)))
+ (unless (memq state enable)
+ (setq enable (cons state enable)))
+ ;; process STATE's :enable property
+ (dolist (entry enable)
+ (cond
+ ((memq entry excluded))
+ ;; the keymaps for STATE
+ ((eq entry state)
+ (setq result `(,@result
+ (,local-map)
+ ,minor-mode-maps
+ ,aux-maps
+ ,overriding-maps
+ (,map)))
+ (push state excluded))
+ ;; the keymaps for another state: call `evil-state-keymaps'
+ ;; recursively, but keep track of processed states
+ ((evil-state-p entry)
+ (setq result `(,@result
+ ,(apply #'evil-state-keymaps entry excluded))))
+ ;; a single keymap
+ ((or (keymapp entry)
+ (and (keymapp (symbol-value entry))
+ (setq entry (symbol-value entry)))
+ (setq entry (evil-keymap-for-mode entry)))
+ (setq result `(,@result
+ ((,(evil-mode-for-keymap entry t) .
+ ,entry)))))))
+ ;; postpone the expensive filtering of duplicates to the top level
+ (if remove-duplicates
+ (apply #'evil-concat-keymap-alists result)
+ (apply #'append result))))
+
+(defun evil-normalize-keymaps (&optional state)
+ "Create a buffer-local value for `evil-mode-map-alist'.
+This is a keymap alist, determined by the current state
+\(or by STATE if specified)."
+ (let ((state (or state evil-state))
+ (excluded '(nil t))
+ map mode temp)
+ ;; initialize buffer-local keymaps as necessary
+ (evil-initialize-local-keymaps)
+ ;; deactivate keymaps of previous state
+ (dolist (entry evil-mode-map-alist)
+ (setq mode (car-safe entry)
+ map (cdr-safe entry))
+ ;; don't deactivate overriding keymaps;
+ ;; they are toggled by their associated mode
+ (if (or (memq mode excluded)
+ (evil-intercept-keymap-p map)
+ (evil-overriding-keymap-p map)
+ (evil-auxiliary-keymap-p map)
+ (evil-minor-mode-keymap-p map))
+ (push mode excluded)
+ (when (and (fboundp mode) (symbol-value mode))
+ (funcall mode -1))
+ (set mode nil)))
+ (setq evil-mode-map-alist nil)
+ ;; activate keymaps of current state
+ (when state
+ (setq temp (evil-state-keymaps state))
+ (dolist (entry temp)
+ (setq mode (car entry)
+ map (cdr entry))
+ (unless (or (and (boundp mode) (symbol-value mode))
+ ;; the minor-mode keymaps include modes that are not
+ ;; necessarily active
+ (evil-minor-mode-keymap-p map))
+ (when (fboundp mode)
+ (funcall mode 1))
+ (set mode t))
+ ;; refresh the keymap in case it has changed
+ ;; (e.g., `evil-operator-shortcut-map' is
+ ;; reset on toggling)
+ (if (or (memq mode excluded)
+ (evil-intercept-keymap-p map)
+ (evil-overriding-keymap-p map)
+ (evil-auxiliary-keymap-p map)
+ (evil-minor-mode-keymap-p map))
+ (push mode excluded)
+ (setcdr entry (or (evil-keymap-for-mode mode) map))))
+ ;; update `evil-mode-map-alist'
+ (setq evil-mode-map-alist temp))))
+
+(defun evil-mode-for-keymap (keymap &optional default)
+ "Return the minor mode associated with KEYMAP.
+Returns DEFAULT if no mode is found.
+See also `evil-keymap-for-mode'."
+ (let ((map (if (keymapp keymap) keymap (symbol-value keymap)))
+ (var (when (symbolp keymap) keymap)))
+ ;; Check Evil variables first for speed purposes.
+ ;; If all else fails, check `minor-mode-map-alist'.
+ (or (when var
+ (or (car (rassq var evil-global-keymaps-alist))
+ (car (rassq var evil-local-keymaps-alist))))
+ (car (rassq map (mapcar #'(lambda (e)
+ ;; from (MODE-VAR . MAP-VAR)
+ ;; to (MODE-VAR . MAP)
+ (cons (car-safe e)
+ (symbol-value (cdr-safe e))))
+ (append evil-global-keymaps-alist
+ evil-local-keymaps-alist))))
+ (car (rassq map minor-mode-map-alist))
+ default)))
+
+(defun evil-keymap-for-mode (mode &optional variable)
+ "Return the keymap associated with MODE.
+Return the keymap variable if VARIABLE is non-nil.
+See also `evil-mode-for-keymap'."
+ (let* ((var (or (cdr (assq mode evil-global-keymaps-alist))
+ (cdr (assq mode evil-local-keymaps-alist))))
+ (map (or (symbol-value var)
+ (cdr (assq mode minor-mode-map-alist)))))
+ (if variable var map)))
+
+(defun evil-state-auxiliary-keymaps (state)
+ "Return a keymap alist of auxiliary keymaps for STATE."
+ (let ((state (or state evil-state))
+ aux result)
+ (dolist (map (current-active-maps) result)
+ (when (setq aux (evil-get-auxiliary-keymap map state))
+ (push (cons (evil-mode-for-keymap map t) aux) result)))
+ (nreverse result)))
+
+(defun evil-state-minor-mode-keymaps (state)
+ "Return a keymap alist of minor-mode keymaps for STATE."
+ (let* ((state (or state evil-state))
+ (state-entry (assq state evil-minor-mode-keymaps-alist)))
+ (when state-entry
+ (cdr state-entry))))
+
+(defun evil-state-overriding-keymaps (&optional state)
+ "Return a keymap alist of overriding keymaps for STATE."
+ (let* ((state (or state evil-state))
+ result)
+ (dolist (map (current-active-maps))
+ (when (setq map (evil-overriding-keymap-p map state))
+ (push (cons (evil-mode-for-keymap map t) map) result)))
+ (nreverse result)))
+
+(defun evil-state-intercept-keymaps (&optional state)
+ "Return a keymap alist of intercept keymaps for STATE."
+ (let* ((state (or state evil-state))
+ result)
+ (dolist (map (current-active-maps))
+ (when (setq map (or (evil-intercept-keymap-p map state)
+ (evil-intercept-keymap-p
+ (evil-get-auxiliary-keymap map state) state)))
+ (push (cons (evil-mode-for-keymap map t) map) result)))
+ (setq result (nreverse result))
+ result))
+
+(defun evil-set-auxiliary-keymap (map state &optional aux)
+ "Set the auxiliary keymap for MAP in STATE to AUX.
+If AUX is nil, create a new auxiliary keymap."
+ (unless (keymapp aux)
+ (setq aux (make-sparse-keymap)))
+ (unless (evil-auxiliary-keymap-p aux)
+ (evil-set-keymap-prompt
+ aux (format "Auxiliary keymap for %s"
+ (or (evil-state-property state :name)
+ (format "%s state" state)))))
+ (define-key map
+ (vconcat (list (intern (format "%s-state" state)))) aux)
+ aux)
+(put 'evil-set-auxiliary-keymap 'lisp-indent-function 'defun)
+
+(defun evil-get-auxiliary-keymap (map state &optional create ignore-parent)
+ "Get the auxiliary keymap for MAP in STATE.
+If CREATE is non-nil, create an auxiliary keymap
+if MAP does not have one. If CREATE and
+IGNORE-PARENT are non-nil then a new auxiliary
+keymap is created even if the parent of MAP has
+one already."
+ (when state
+ (let* ((key (vconcat (list (intern (format "%s-state" state)))))
+ (parent-aux (when (and ignore-parent
+ (keymap-parent map))
+ (lookup-key (keymap-parent map) key)))
+ (aux (lookup-key map key)))
+ (cond
+ ((and ignore-parent
+ (equal parent-aux aux)
+ create)
+ (evil-set-auxiliary-keymap map state))
+ ((evil-auxiliary-keymap-p aux)
+ aux)
+ (create
+ (evil-set-auxiliary-keymap map state))))))
+
+(defun evil-get-minor-mode-keymap (state mode)
+ "Get the auxiliary keymap for MODE in STATE, creating one if it
+does not already exist."
+ (let ((state-entry (assq state evil-minor-mode-keymaps-alist)))
+ (if (and state-entry
+ (assq mode state-entry))
+ (cdr (assq mode state-entry))
+ (let ((map (make-sparse-keymap)))
+ (evil-set-keymap-prompt
+ map (format "Minor-mode keymap for %s in %s"
+ (symbol-name mode)
+ (or (evil-state-property state :name)
+ (format "%s state" state))))
+ (if state-entry
+ (setcdr state-entry
+ (append (list (cons mode map)) (cdr state-entry)))
+ (push (cons state (list (cons mode map)))
+ evil-minor-mode-keymaps-alist))
+ map))))
+
+(defun evil-auxiliary-keymap-p (map)
+ "Whether MAP is an auxiliary keymap."
+ (and (keymapp map)
+ (string-match-p "Auxiliary keymap"
+ (or (keymap-prompt map) "")) t))
+
+(defun evil-minor-mode-keymap-p (map)
+ "Whether MAP is a minor-mode keymap."
+ (and (keymapp map)
+ (string-match-p "Minor-mode keymap"
+ (or (keymap-prompt map) "")) t))
+
+(defun evil-intercept-keymap-p (map &optional state)
+ "Whether MAP is an intercept keymap for STATE.
+If STATE is nil, it means any state."
+ (let ((entry (and (keymapp map)
+ (lookup-key map [intercept-state]))))
+ (cond
+ ((null entry)
+ nil)
+ ((null state)
+ map)
+ ((eq entry state)
+ map)
+ ((eq entry 'all)
+ map))))
+
+(defun evil-overriding-keymap-p (map &optional state)
+ "Whether MAP is an overriding keymap for STATE.
+If STATE is nil, it means any state."
+ (let ((entry (and (keymapp map)
+ (lookup-key map [override-state]))))
+ (cond
+ ((null entry)
+ nil)
+ ((keymapp entry)
+ (evil-overriding-keymap-p entry state))
+ ((null state)
+ map)
+ ((eq entry state)
+ map)
+ ((eq entry 'all)
+ map))))
+
+(defun evil-intercept-keymap-state (map)
+ "Return the state for the intercept keymap MAP.
+A return value of t means all states."
+ (let ((state (lookup-key map [intercept-state] map)))
+ (cond
+ ((keymapp state)
+ (evil-intercept-keymap-state state))
+ ((eq state 'all)
+ t)
+ (t
+ state))))
+
+(defun evil-overriding-keymap-state (map)
+ "Return the state for the overriding keymap MAP.
+A return value of t means all states."
+ (let ((state (lookup-key map [override-state] map)))
+ (cond
+ ((keymapp state)
+ (evil-overriding-keymap-state state))
+ ((eq state 'all)
+ t)
+ (t
+ state))))
+
+(defun evil-send-leader ()
+ "Put symbol leader in `unread-command-events' to trigger any
+<leader> bindings."
+ (interactive)
+ (setq prefix-arg current-prefix-arg)
+ (push '(t . leader) unread-command-events))
+
+(defun evil-send-localleader ()
+ "Put symbol localleader in `unread-command-events' to trigger any
+<localleader> bindings."
+ (interactive)
+ (setq prefix-arg current-prefix-arg)
+ (push '(t . localleader) unread-command-events))
+
+(defun evil-set-leader (state key &optional localleader)
+ "Set KEY to trigger leader bindings in STATE.
+KEY should be in the form produced by `kbd'. STATE is one of
+`normal', `insert', `visual', `replace', `operator', `motion',
+`emacs', a list of one or more of these, or `nil', which means
+all of the above. If LOCALLEADER is non-nil, set the local leader
+instead."
+ (let* ((all-states '(normal insert visual replace operator motion emacs))
+ (states (cond ((listp state) state)
+ ((member state all-states) (list state))
+ ((null state) all-states)
+ ;; Maybe throw error here
+ (t (list state))))
+ (binding (if localleader 'evil-send-localleader 'evil-send-leader)))
+ (dolist (state states)
+ (evil-global-set-key state key binding))))
+
+(defmacro evil-define-key (state keymap key def &rest bindings)
+ "Create a STATE binding from KEY to DEF for KEYMAP.
+STATE is one of `normal', `insert', `visual', `replace',
+`operator', `motion', `emacs', or a list of one or more of
+these. Omitting a state by using `nil' corresponds to a standard
+Emacs binding using `define-key'. The remaining arguments are
+like those of `define-key'. For example:
+
+ (evil-define-key 'normal foo-map \"a\" 'bar)
+
+This creates a binding from `a' to `bar' in normal state, which
+is active whenever `foo-map' is active. Using nil for the state,
+the following lead to identical bindings:
+
+ (evil-define-key nil foo-map \"a\" 'bar)
+ (define-key foo-map \"a\" 'bar)
+
+It is possible to specify multiple states and/or bindings at
+once:
+
+ (evil-define-key '(normal visual) foo-map
+ \"a\" 'bar
+ \"b\" 'foo)
+
+If `foo-map' has not been initialized yet, this macro adds an
+entry to `after-load-functions', delaying execution as necessary.
+
+KEYMAP may also be a quoted symbol. If the symbol is `global', the
+global evil keymap corresponding to the state(s) is used, meaning
+the following lead to identical bindings:
+
+ (evil-define-key 'normal 'global \"a\" 'bar)
+ (evil-global-set-key 'normal \"a\" 'bar)
+
+The symbol `local' may also be used, which corresponds to using
+`evil-local-set-key'. If a quoted symbol is used that is not
+`global' or `local', it is assumed to be the name of a minor
+mode, in which case `evil-define-minor-mode-key' is used."
+ (declare (indent defun))
+ (cond ((member keymap '('global 'local))
+ `(evil-define-key* ,state ,keymap ,key ,def ,@bindings))
+ ((and (consp keymap) (eq (car keymap) 'quote))
+ `(evil-define-minor-mode-key ,state ,keymap ,key ,def ,@bindings))
+ (t
+ `(evil-delay ',(if (symbolp keymap)
+ `(and (boundp ',keymap) (keymapp ,keymap))
+ `(keymapp ,keymap))
+ '(condition-case-unless-debug err
+ (evil-define-key* ,state ,keymap ,key ,def ,@bindings)
+ (error
+ (message "error in evil-define-key: %s"
+ (error-message-string err))))
+ 'after-load-functions t nil
+ (format "evil-define-key-in-%s"
+ ',(if (symbolp keymap) keymap 'keymap))))))
+(defalias 'evil-declare-key 'evil-define-key)
+
+(defun evil-define-key* (state keymap key def &rest bindings)
+ "Create a STATE binding from KEY to DEF for KEYMAP.
+STATE is one of normal, insert, visual, replace, operator,
+motion, emacs, or a list of one or more of these. Omitting a
+state by using nil corresponds to a standard Emacs binding using
+`define-key' The remaining arguments are like those of
+`define-key'. For example:
+
+ (evil-define-key* 'normal foo-map \"a\" 'bar)
+
+This creates a binding from \"a\" to bar in Normal state, which
+is active whenever foo-map is active. Using nil for the state,
+the following are equivalent:
+
+ (evil-define-key* nil foo-map \"a\" 'bar)
+
+ (define-key foo-map \"a\" 'bar)
+
+ It is possible to specify multiple states and/or bindings at
+ once:
+
+ (evil-define-key* '(normal visual) foo-map
+ \"a\" 'bar
+ \"b\" 'foo)
+
+KEYMAP may also be a quoted symbol. If the symbol is global, the
+global evil keymap corresponding to the state(s) is used, meaning
+the following are equivalent:
+
+ (evil-define-key* 'normal 'global \"a\" 'bar)
+
+ (evil-global-set-key 'normal \"a\" 'bar)
+
+The symbol local may also be used, which corresponds to using
+`evil-local-set-key'.
+
+The use is nearly identical to `evil-define-key' with the
+exception that this is a function and not a macro (and so will
+not be expanded when compiled which can have unintended
+consequences). `evil-define-key*' also does not defer any
+bindings like `evil-define-key' does using `evil-delay'. This
+allows errors in the bindings to be caught immediately, and makes
+its behavior more predictable."
+ (declare (indent defun))
+ (let ((maps
+ (if state
+ (mapcar
+ (lambda (st)
+ (cond ((eq keymap 'global)
+ (evil-state-property st :keymap t))
+ ((eq keymap 'local)
+ (evil-state-property st :local-keymap t))
+ (t
+ (evil-get-auxiliary-keymap keymap st t t))))
+ (if (listp state) state (list state)))
+ (list
+ (cond ((eq keymap 'global)
+ global-map)
+ ((eq keymap 'local)
+ ;; see `local-set-key'
+ (or (current-local-map)
+ (let ((map (make-sparse-keymap)))
+ (use-local-map map)
+ map)))
+ (t
+ keymap))))))
+ (while key
+ (dolist (map maps)
+ (define-key map key def))
+ (setq key (pop bindings)
+ def (pop bindings)))
+ ;; ensure the prompt string comes first
+ (dolist (map maps)
+ (evil-set-keymap-prompt map (keymap-prompt map)))))
+
+(defun evil-define-minor-mode-key (state mode key def &rest bindings)
+ "Similar to `evil-define-key' but the bindings are associated
+with the minor-mode symbol MODE instead of a particular map.
+Associating bindings with a mode symbol instead of a map allows
+evil to use Emacs' built-in mechanisms to enable the bindings
+automatically when MODE is active without relying on calling
+`evil-normalize-keymaps'. Another less significant difference is
+that the bindings can be created immediately, because this
+function only uses the symbol MODE and does not rely on its
+value.
+
+See `evil-define-key' for the usage of STATE, KEY, DEF and
+BINDINGS."
+ (declare (indent defun))
+ (let ((maps (mapcar
+ (lambda (st)
+ (evil-get-minor-mode-keymap st mode))
+ (if (listp state) state (list state)))))
+ (while key
+ (dolist (map maps)
+ (define-key map key def))
+ (setq key (pop bindings)
+ def (pop bindings)))))
+
+(defmacro evil-add-hjkl-bindings (keymap &optional state &rest bindings)
+ "Add \"h\", \"j\", \"k\", \"l\" bindings to KEYMAP in STATE.
+Add additional BINDINGS if specified."
+ (declare (indent defun))
+ `(evil-define-key ,state ,keymap
+ "h" (lookup-key evil-motion-state-map "h")
+ "j" (lookup-key evil-motion-state-map "j")
+ "k" (lookup-key evil-motion-state-map "k")
+ "l" (lookup-key evil-motion-state-map "l")
+ ":" (lookup-key evil-motion-state-map ":")
+ ,@bindings))
+
+;; may be useful for programmatic purposes
+(defun evil-global-set-key (state key def)
+ "Bind KEY to DEF in STATE."
+ (define-key (evil-state-property state :keymap t) key def))
+
+(defun evil-local-set-key (state key def)
+ "Bind KEY to DEF in STATE in the current buffer."
+ (define-key (evil-state-property state :local-keymap t) key def))
+
+;; Advise these functions as they may activate an overriding keymap or
+;; a keymap with state bindings; if so, refresh `evil-mode-map-alist'.
+(defadvice use-global-map (after evil activate)
+ "Refresh Evil keymaps."
+ (evil-normalize-keymaps))
+
+(defadvice use-local-map (after evil activate)
+ "Refresh Evil keymaps."
+ (evil-normalize-keymaps))
+
+(defmacro evil-define-state (state doc &rest body)
+ "Define an Evil state STATE.
+DOC is a general description and shows up in all docstrings;
+the first line of the string should be the full name of the state.
+
+BODY is executed each time the state is enabled or disabled.
+
+Optional keyword arguments:
+- `:tag' - the mode line indicator, e.g. \"<T>\".
+- `:message' - string shown in the echo area when the state is
+ activated.
+- `:cursor' - default cursor specification.
+- `:enable' - list of other state keymaps to enable when in this
+ state.
+- `:entry-hook' - list of functions to run when entering this state.
+- `:exit-hook' - list of functions to run when exiting this state.
+- `:suppress-keymap' - if non-nil, effectively disables bindings to
+ `self-insert-command' by making `evil-suppress-map' the parent of
+ the global state keymap.
+
+The global keymap of this state will be `evil-test-state-map',
+the local keymap will be `evil-test-state-local-map', and so on.
+
+\(fn STATE DOC [[KEY VAL]...] BODY...)"
+ (declare (indent defun)
+ (doc-string 2)
+ (debug (&define name
+ [&optional stringp]
+ [&rest [keywordp sexp]]
+ def-body)))
+ (let* ((name (and (string-match "^\\(.+\\)\\(\\(?:.\\|\n\\)*\\)" doc)
+ (match-string 1 doc)))
+ (doc (match-string 2 doc))
+ (name (and (string-match "^\\(.+?\\)\\.?$" name)
+ (match-string 1 name)))
+ (doc (if (or (null doc) (string= doc "")) ""
+ (format "\n%s" doc)))
+ (toggle (intern (format "evil-%s-state" state)))
+ (mode (intern (format "%s-minor-mode" toggle)))
+ (keymap (intern (format "%s-map" toggle)))
+ (local (intern (format "%s-local-minor-mode" toggle)))
+ (local-keymap (intern (format "%s-local-map" toggle)))
+ (tag (intern (format "%s-tag" toggle)))
+ (message (intern (format "%s-message" toggle)))
+ (cursor (intern (format "%s-cursor" toggle)))
+ (entry-hook (intern (format "%s-entry-hook" toggle)))
+ (exit-hook (intern (format "%s-exit-hook" toggle)))
+ (modes (intern (format "%s-modes" toggle)))
+ (predicate (intern (format "%s-p" toggle)))
+ arg cursor-value enable entry-hook-value exit-hook-value
+ input-method key message-value suppress-keymap tag-value)
+ ;; collect keywords
+ (while (keywordp (car-safe body))
+ (setq key (pop body)
+ arg (pop body))
+ (cond
+ ((eq key :tag)
+ (setq tag-value arg))
+ ((eq key :message)
+ (setq message-value arg))
+ ((eq key :cursor)
+ (setq cursor-value arg))
+ ((eq key :entry-hook)
+ (setq entry-hook-value arg)
+ (unless (listp entry-hook-value)
+ (setq entry-hook-value (list entry-hook-value))))
+ ((eq key :exit-hook)
+ (setq exit-hook-value arg)
+ (unless (listp exit-hook-value)
+ (setq exit-hook-value (list exit-hook-value))))
+ ((eq key :enable)
+ (setq enable arg))
+ ((eq key :input-method)
+ (setq input-method arg))
+ ((eq key :suppress-keymap)
+ (setq suppress-keymap arg))))
+
+ ;; macro expansion
+ `(progn
+ ;; Save the state's properties in `evil-state-properties' for
+ ;; runtime lookup. Among other things, this information is used
+ ;; to determine what keymaps should be activated by the state
+ ;; (and, when processing :enable, what keymaps are activated by
+ ;; other states). We cannot know this at compile time because
+ ;; it depends on the current buffer and its active keymaps
+ ;; (to which we may have assigned state bindings), as well as
+ ;; states whose definitions may not have been processed yet.
+ (evil-put-property
+ 'evil-state-properties ',state
+ :name ',name
+ :toggle ',toggle
+ :mode (defvar ,mode nil
+ ,(format "Non-nil if %s is enabled.
+Use the command `%s' to change this variable." name toggle))
+ :keymap (defvar ,keymap (make-sparse-keymap)
+ ,(format "Keymap for %s." name))
+ :local (defvar ,local nil
+ ,(format "Non-nil if %s is enabled.
+Use the command `%s' to change this variable." name toggle))
+ :local-keymap (defvar ,local-keymap nil
+ ,(format "Buffer-local keymap for %s." name))
+ :tag (defvar ,tag ,tag-value
+ ,(format "Mode line tag for %s." name))
+ :message (defvar ,message ,message-value
+ ,(format "Echo area message for %s." name))
+ :cursor (defvar ,cursor ',cursor-value
+ ,(format "Cursor for %s.
+May be a cursor type as per `cursor-type', a color string as passed
+to `set-cursor-color', a zero-argument function for changing the
+cursor, or a list of the above." name))
+ :entry-hook (defvar ,entry-hook nil
+ ,(format "Hooks to run when entering %s." name))
+ :exit-hook (defvar ,exit-hook nil
+ ,(format "Hooks to run when exiting %s." name))
+ :modes (defvar ,modes nil
+ ,(format "Modes that should come up in %s." name))
+ :input-method ',input-method
+ :predicate ',predicate
+ :enable ',enable)
+
+ ,@(when suppress-keymap
+ `((set-keymap-parent ,keymap evil-suppress-map)))
+
+ (dolist (func ',entry-hook-value)
+ (add-hook ',entry-hook func))
+
+ (dolist (func ',exit-hook-value)
+ (add-hook ',exit-hook func))
+
+ (defun ,predicate (&optional state)
+ ,(format "Whether the current state is %s.
+\(That is, whether `evil-state' is `%s'.)" name state)
+ (and evil-local-mode
+ (eq (or state evil-state) ',state)))
+
+ ;; define state function
+ (defun ,toggle (&optional arg)
+ ,(format "Enable %s. Disable with negative ARG.
+If ARG is nil, don't display a message in the echo area.%s" name doc)
+ (interactive)
+ (cond
+ ((and (numberp arg) (< arg 1))
+ (setq evil-previous-state evil-state
+ evil-state nil)
+ (let ((evil-state ',state))
+ (run-hooks ',exit-hook)
+ (setq evil-state nil)
+ (evil-normalize-keymaps)
+ ,@body))
+ (t
+ (unless evil-local-mode
+ (evil-local-mode 1))
+ (let ((evil-next-state ',state)
+ input-method-activate-hook
+ input-method-deactivate-hook)
+ (evil-change-state nil)
+ (setq evil-state ',state)
+ (evil--add-to-alist 'evil-previous-state-alist
+ ',state evil-previous-state)
+ (let ((evil-state ',state))
+ (evil-normalize-keymaps)
+ (if ',input-method
+ (activate-input-method evil-input-method)
+ ;; BUG #475: Deactivate the current input method only
+ ;; if there is a function to deactivate it, otherwise
+ ;; an error would be raised. This strange situation
+ ;; should not arise in general and there should
+ ;; probably be a better way to handle this situation.
+ (if deactivate-current-input-method-function
+ (deactivate-input-method)))
+ (unless evil-no-display
+ (evil-refresh-cursor ',state)
+ (evil-refresh-mode-line ',state)
+ (when (called-interactively-p 'any)
+ (redisplay)))
+ ,@body
+ (run-hooks ',entry-hook)
+ (when (and evil-echo-state
+ arg (not evil-no-display) ,message)
+ (if (functionp ,message)
+ (funcall ,message)
+ (evil-echo "%s" ,message))))))))
+
+ (evil-set-command-property ',toggle :keep-visual t)
+ (evil-set-command-property ',toggle :suppress-operator t)
+
+ (evil-define-keymap ,keymap nil
+ :mode ,mode
+ :func nil)
+
+ (evil-define-keymap ,local-keymap nil
+ :mode ,local
+ :local t
+ :func nil)
+
+ ',state)))
+
+(provide 'evil-core)
+
+;;; evil-core.el ends here