arrayparser.php

<?php

/**
 * @author Robin Appelman
 * @copyright 2013 Robin Appelman icewind@owncloud.com
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library 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 AFFERO GENERAL PUBLIC LICENSE for more details.
 *
 * You should have received a copy of the GNU Affero General Public
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OC;

class SyntaxException extends \Exception {
}

class ArrayParser {
	const TYPE_NUM = 1;
	const TYPE_BOOL = 2;
	const TYPE_STRING = 3;
	const TYPE_ARRAY = 4;

	function parsePHP($string) {
		$string = $this->stripPHPTags($string);
		$string = $this->stripAssignAndReturn($string);
		return $this->parse($string);
	}

	function stripPHPTags($string) {
		$string = trim($string);
		if (substr($string, 0, 5) === '<?php') {
			$string = substr($string, 5);
		}
		if (substr($string, -2) === '?>') {
			$string = substr($string, 0, -2);
		}
		return $string;
	}

	function stripAssignAndReturn($string) {
		$string = trim($string);
		if (substr($string, 0, 6) === 'return') {
			$string = substr($string, 6);
		}
		if (substr($string, 0, 1) === '$') {
			list(, $string) = explode('=', $string, 2);
		}
		return $string;
	}

	function parse($string) {
		$string = trim($string);
		$string = trim($string, ';');
		switch ($this->getType($string)) {
			case self::TYPE_NUM:
				return $this->parseNum($string);
			case self::TYPE_BOOL:
				return $this->parseBool($string);
			case self::TYPE_STRING:
				return $this->parseString($string);