65 lines
2.3 KiB
EmacsLisp
65 lines
2.3 KiB
EmacsLisp
;;; gemini.el --- A simple highlighting package for text/gemini
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;; Copyright (C) 2020 Jason McBrayer
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;; Author: Jason McBrayer <jmcbray@carcosa.net>
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;; Created: 20 May 2020
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;; Version: 0.1.0
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;; Keywords: syntax gemini
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;; Homepage: https://git.carcosa.net/jmcbray/gemini.el
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;; Package-Requires: ((emacs "24"))
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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
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;; it under the terms of the GNU Affero General Public License as
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;; published by the Free Software Foundation, either version 3 of the
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;; License, or (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU Affero General Public License for more details.
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;; You should have received a copy of the GNU Affero General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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(defface gemini-heading-face-1
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'((t :inherit bold :height 1.8))
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"Face for Gemini headings level 1")
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(defface gemini-heading-face-2
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'((t :inherit bold :height 1.4))
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"Face for Gemini headings level 2")
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(defface gemini-heading-face-3
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'((t :inherit bold :height 1.2))
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"Face for Gemini headings level 3")
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(defface gemini-heading-face-rest
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'((t :inherit bold))
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"Face for Gemini headings below level 3")
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(defvar gemini-highlights
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(let* ((gemini-heading-3-regexp "^###\s.*$")
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(gemini-heading-2-regexp "^##\s.*$")
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(gemini-heading-1-regexp "^#\s.*$")
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(gemini-heading-rest-regexp "^###+\s.*$")
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(gemini-link-regexp "^=>.*$"))
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`((,gemini-heading-rest-regexp . 'gemini-heading-face-rest)
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(,gemini-heading-3-regexp . 'gemini-heading-face-3)
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(,gemini-heading-2-regexp . 'gemini-heading-face-2)
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(,gemini-heading-1-regexp . 'gemini-heading-face-1)
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(,gemini-link-regexp . 'link)))
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"Font lock keywords for gemini-mode")
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(define-derived-mode gemini-mode text-mode "gemini"
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"Major mode for editing text/gemini 'geminimap' documents"
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(setq font-lock-defaults '(gemini-highlights))
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(visual-line-mode 1))
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(add-to-list 'auto-mode-alist '("\\.gmi\\'" . gemini-mode))
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(add-to-list 'auto-mode-alist '("\\.gemini\\'" . gemini-mode))
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(add-to-list 'auto-mode-alist '("\\.geminimap\\'" . gemini-mode))
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(provide 'gemini-mode)
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