;;; ini-mode.el --- major mode for INI  -*- lexical-binding:t -*-

;; Copyright (C) 2024 Jeremy Baxter

;; Author: Jeremy Baxter <jeremy@baxters.nz>
;; Maintainer: Jeremy Baxter <jeremy@baxters.nz>
;; Created: July 2024
;; Keywords: ini

;; This file is not part of GNU Emacs.

;; ini-mode.el 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.
;;
;; ini-mode.el 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 ini-mode.el.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; ini-mode.el provides `ini-mode', an implementation of a simple
;; font-locking major mode for INI.

;; TODO: fix section keys refusing to highlight initially

;;; Code:

(require 'font-lock)

(defvar ini-mode-font-lock-keywords
  '(("\\([#;].*$\\)" . font-lock-comment-face)
    ("[ \t]*\\[\\(.+\\)\\]" . 'font-lock-type-face)
    ("\\(^[^=]+\\)" . 'font-lock-keyword-face)
    ("=\\(.+$\\)" 1 'font-lock-string-face))
  "Keywords for font locking in `ini-mode'.")

(define-derived-mode ini-mode nil "INI"
  "Major mode for editing INI."

  (font-lock-mode)
  (font-lock-add-keywords nil ini-mode-font-lock-keywords))

(provide 'ini-mode)

;;; ini-mode.el ends here