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| ;;; term-keys-alacritty.el --- term-keys support for Alacritty | ||
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| ;; This file is not part of GNU Emacs. | ||
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| ;; 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 2 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; see the file COPYING. If not, write to | ||
| ;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
| ;; Boston, MA 02111-1307, USA. | ||
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| ;;; Commentary: | ||
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| ;; This file contains supplementary code for aiding in the | ||
| ;; configuration of the Alacritty terminal emulator to interoperate with | ||
| ;; the term-keys package. | ||
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| ;; For more information, please see the accompanying README.md file. | ||
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| ;;; Code: | ||
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| (require 'term-keys) | ||
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| (defgroup term-keys/alacritty nil | ||
| "`term-keys' options for ALACRITTY-based terminal emulators." | ||
| :group 'term-keys) | ||
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| (define-widget 'term-keys/alacritty-modifier 'lazy | ||
| "Choice for Alacritty key modifier state flags." | ||
| :type '(choice (const "Command") | ||
| (const "Control") | ||
| (const "Option") | ||
| (const "Super") | ||
| (const "Shift") | ||
| (const "Alt") | ||
| (const :tag "(none)" nil))) | ||
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| (defcustom term-keys/alacritty-modifier-map ["Shift" "Control" "Alt" "Super" "Command" "Option"] | ||
| "Map of Alacritty modifiers to Emacs modifiers. | ||
| This should be a vector of 6 elements, with each element being a | ||
| string indicating the name of the Alacritty modifier name | ||
| corresponding to the Emacs modifiers Shift, Control, Meta, Super, | ||
| Hyper and Alt respectively. nil indicates that there is no | ||
| mapping for this modifier." | ||
| :type '(vector | ||
| (term-keys/alacritty-modifier :tag "Shift") | ||
| (term-keys/alacritty-modifier :tag "Control") | ||
| (term-keys/alacritty-modifier :tag "Meta") | ||
| (term-keys/alacritty-modifier :tag "Super") | ||
| (term-keys/alacritty-modifier :tag "Hyper") | ||
| (term-keys/alacritty-modifier :tag "Alt")) | ||
| :group 'term-keys/alacritty) | ||
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| (defun term-keys/alacritty-mods-representable (mods) | ||
| "Return non-nil if the given MODS vector is representable in ALACRITTY." | ||
| (cl-reduce (lambda (x y) (and x y)) ; all | ||
| (mapcar (lambda (n) | ||
| (or (not (elt mods n)) ; inactive modifier | ||
| (elt term-keys/alacritty-modifier-map n))) ; mapped | ||
| (number-sequence 0 (1- (length mods)))))) ; 0..5 | ||
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| (defun term-keys/alacritty-format-mods (mods) | ||
| "Format MODS in Alacritty syntax." | ||
| (if (cl-reduce (lambda (x y) (or x y)) mods) | ||
| (concat | ||
| ", mods: " | ||
| (mapconcat | ||
| (lambda (n) | ||
| (elt term-keys/alacritty-modifier-map n)) | ||
| (cl-remove-if-not (lambda (n) (elt mods n)) | ||
| (number-sequence 0 (1- (length mods)))) | ||
| "|")) | ||
| "")) | ||
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| (defun term-keys/alacritty-config () | ||
| "Construct Alacritty configuration (alacritty.yml fragment). | ||
| This function returns, as a string, an alacritty.yml fragment | ||
| necessary to configure Alacritty to encode term-keys key | ||
| sequences, according to the term-keys configuration." | ||
| (apply #'concat | ||
| "key_bindings:\n" | ||
| (term-keys/iterate-keys | ||
| (lambda (index keymap mods) | ||
| (format "- { key: %s%s, chars: \"%s\" }\n" | ||
| (elt keymap 8) | ||
| (term-keys/alacritty-format-mods mods) | ||
| (mapconcat | ||
| (lambda (c) (format "\\x%02x" c)) | ||
| (append | ||
| term-keys/prefix | ||
| (term-keys/encode-key index mods) | ||
| term-keys/suffix | ||
| nil) | ||
| "")))))) | ||
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| (provide 'term-keys-alacritty) | ||
| ;;; term-keys-alacritty.el ends here |
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