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;;; evil-collection-eat.el --- Bindings for `eat' -*- lexical-binding: t -*-
;; Copyright (C) 2024 James Cherti
;; Maintainer: James Cherti <https://www.jamescherti.com/contact/>
;; Author: James Cherti <https://www.jamescherti.com/contact/>
;; Based on evil-collection-vterm.el by James Nguyen and Pierre Neidhardt
;; URL: https://github.com/emacs-evil/evil-collection
;; Version: 0.0.1
;; Package-Requires: ((emacs "26.3"))
;; Keywords: evil, eat, tools
;; 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:
;; This package provides `evil-mode' keybindings for `eat'.
;;; Code:
(require 'evil-collection)
(require 'eat nil t)
(defconst evil-collection-eat-maps '(eat-mode-map
eat-line-mode-map
eat-semi-char-mode-map
eat-char-mode-map
eat-eshell-semi-char-mode-map
eat-eshell-char-mode-map))
;; The map symbols below are only referenced inside quoted lists in this
;; file, so the byte-compiler does not actually require these declarations.
;; Defining them keeps certain linters happy.
(defvar eat-line-mode-map)
(defvar eat-semi-char-mode-map)
(defvar eat-char-mode-map)
(defvar eat-eshell-semi-char-mode-map)
(defvar eat-eshell-char-mode-map)
(defvar-local evil-collection-eat-send-escape-to-eat-p nil
"Track whether or not we send ESC to `eat' or `emacs'.")
(defun evil-collection-eat-toggle-send-escape ()
"Toggle the destination of the ESC key between `eat' and `emacs'.
This adjustment is necessary for programs that utilize ESC, such as Vim or an
SSH-accessed Emacs that also uses `evil-mode'."
(interactive)
(if evil-collection-eat-send-escape-to-eat-p
(evil-collection-define-key 'insert 'eat-mode-map (kbd "<escape>")
(lookup-key evil-insert-state-map (kbd "<escape>")))
(evil-collection-define-key 'insert 'eat-mode-map
(kbd "<escape>") 'eat-self-input))
(setq evil-collection-eat-send-escape-to-eat-p
(not evil-collection-eat-send-escape-to-eat-p))
(message (format "Sending ESC to %s."
(if evil-collection-eat-send-escape-to-eat-p
"eat"
"emacs"))))
;;;###autoload
(defun evil-collection-eat-setup ()
"Set up `evil' bindings for `eat'."
(evil-set-initial-state 'eat-mode 'insert)
(let* ((submit evil-collection-repl-submit-state)
(newline-state (if (eq submit 'normal) 'insert 'normal)))
(evil-collection-define-key submit 'eat-line-mode-map
(kbd "RET") 'eat-line-send-input
(kbd "\C-m") 'eat-line-send-input
[return] 'eat-line-send-input)
(evil-collection-define-key newline-state 'eat-line-mode-map
(kbd "RET") #'newline
(kbd "\C-m") #'newline
[return] #'newline))
(evil-collection-define-key '(normal insert) 'eat-mode-map
(kbd "C-c C-z") 'evil-collection-eat-toggle-send-escape)
;; `Evil' has some "C-" bindings in insert state that shadow the `eat' terminal
;; bindings. Do not send "C-c" (prefix key) nor "C-h" (help prefix) as raw input.
(evil-collection-define-key 'insert 'eat-mode-map
(kbd "C-a") 'eat-self-input
(kbd "C-b") 'eat-self-input
(kbd "C-d") 'eat-self-input
(kbd "C-e") 'eat-self-input
(kbd "C-f") 'eat-self-input
(kbd "C-k") 'eat-self-input
(kbd "C-l") 'eat-self-input
(kbd "C-n") 'eat-self-input
(kbd "C-o") 'eat-self-input
(kbd "C-p") 'eat-self-input
(kbd "C-q") 'eat-self-input
(kbd "C-r") 'eat-self-input
(kbd "C-s") 'eat-self-input
(kbd "C-t") 'eat-self-input
(kbd "C-u") 'eat-self-input
(kbd "C-v") 'eat-self-input
(kbd "C-w") 'eat-self-input
(kbd "C-y") 'eat-self-input
(kbd "C-z") 'eat-self-input
(kbd "<delete>") 'eat-self-input)
;; Paste bindings: in a terminal, "paste before/after" is meaningless because
;; the cursor position is controlled by the running program. Bind both `p'
;; and `P' to `eat-yank' so the kill-ring is sent as terminal input.
(dolist (map '(eat-semi-char-mode-map
eat-char-mode-map
eat-eshell-semi-char-mode-map
eat-eshell-char-mode-map))
(evil-collection-define-key 'normal map
(kbd "p") 'eat-yank
(kbd "P") 'eat-yank)))
(provide 'evil-collection-eat)
;;; evil-collection-eat.el ends here
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