vendor/cerdic/css-tidy/class.csstidy.php

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<?php

/**
 * CSSTidy - CSS Parser and Optimiser
 *
 * CSS Parser class
 *
 * Copyright 2005, 2006, 2007 Florian Schmitz
 *
 * This file is part of CSSTidy.
 *
 *   CSSTidy 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.
 *
 *   CSSTidy 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 program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @license http://opensource.org/licenses/lgpl-license.php GNU Lesser General Public License
 * @package csstidy
 * @author Florian Schmitz (floele at gmail dot com) 2005-2007
 * @author Brett Zamir (brettz9 at yahoo dot com) 2007
 * @author Nikolay Matsievsky (speed at webo dot name) 2009-2010
 * @author Cedric Morin (cedric at yterium dot com) 2010-2012
 * @author Christopher Finke (cfinke at gmail.com) 2012
 * @author Mark Scherer (remove $GLOBALS once and for all + PHP5.4 comp) 2012
 */

/**
 * Defines ctype functions if required.
 *
 * @TODO: Make these methods of CSSTidy.
 * @since 1.0.0
 */
if (!function_exists('ctype_space')){
	/* ctype_space Check for whitespace character(s) */
	function ctype_space($text){
		return (1===preg_match("/^[ \r\n\t\f]+$/", $text));
	}
}
if (!function_exists('ctype_alpha')){
	/* ctype_alpha Check for alphabetic character(s) */
	function ctype_alpha($text){
		return (1===preg_match('/^[a-zA-Z]+$/', $text));
	}
}
if (!function_exists('ctype_xdigit')){
	/* ctype_xdigit Check for HEX character(s) */
	function ctype_xdigit($text){
		return (1===preg_match('/^[a-fA-F0-9]+$/', $text));
	}
}

/**