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<!--

 This file is part of GtkSourceView

 Author: Philip Withnall <philip@tecnocode.co.uk>
 Copyright (C) 2016 Philip Withnall <philip@tecnocode.co.uk>

 GtkSourceView is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.

 GtkSourceView 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
 Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public License
 along with this library; if not, see <http://www.gnu.org/licenses/>.

-->

<!--
References:
	https://en.wikipedia.org/wiki/Augmented_Backus%E2%80%93Naur_form
	https://tools.ietf.org/html/rfc5234
	https://tools.ietf.org/html/rfc7405
-->
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