77 lines
2.5 KiB
EmacsLisp
77 lines
2.5 KiB
EmacsLisp
;;; faceup-test-mode.el --- Dummy major mode for testing `faceup'. -*- lexical-binding:t -*-
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;; Copyright (C) 2014-2024 Free Software Foundation, Inc.
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;; Author: Anders Lindgren
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;; Keywords: languages, faces
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs 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 General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Dummy major-mode for testing `faceup', a regression test system for
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;; font-lock keywords (syntax highlighting rules for Emacs).
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;;
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;; This mode use `syntax-propertize' to set the `syntax-table'
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;; property on "<" and ">" in "<TEXT>" to make them act like
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;; parentheses.
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;;
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;; This mode also sets the `help-echo' property on the text WARNING,
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;; the effect is that Emacs displays a tooltip when you move your
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;; mouse on to the text.
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;;; Code:
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(defvar faceup-test-mode-syntax-table
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(make-syntax-table)
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"Syntax table for `faceup-test-mode'.")
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(defvar faceup-test-font-lock-keywords
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'(("\\_<WARNING\\_>"
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(0 (progn
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(add-text-properties (match-beginning 0)
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(match-end 0)
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'(help-echo "Balloon tip: Fly smoothly!"))
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font-lock-warning-face))))
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"Highlight rules for `faceup-test-mode'.")
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(defun faceup-test-syntax-propertize (start end)
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(goto-char start)
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(funcall
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(syntax-propertize-rules
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("\\(<\\)\\([^<>\n]*\\)\\(>\\)"
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(1 "() ")
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(3 ")( ")))
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start end))
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(defmacro faceup-test-define-prog-mode (mode name &rest args)
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"Define a major mode for a programming language.
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If `prog-mode' is defined, inherit from it."
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(declare (indent defun))
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`(define-derived-mode
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,mode ,(and (fboundp 'prog-mode) 'prog-mode)
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,name ,@args))
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(faceup-test-define-prog-mode faceup-test-mode "faceup-test"
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"Dummy major mode for testing `faceup', a test system for font-lock."
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(setq-local syntax-propertize-function
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#'faceup-test-syntax-propertize)
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(setq font-lock-defaults '(faceup-test-font-lock-keywords nil)))
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(provide 'faceup-test-mode)
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;;; faceup-test-mode.el ends here
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