ThinkPHP/Library/Org/Util/PHPExcel/Calculation/TextData.php

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<?php

/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT')) {
    /**
     * @ignore
     */
    define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
    require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
}

/**
 * PHPExcel_Calculation_TextData
 *
 * Copyright (c) 2006 - 2015 PHPExcel
 *
 * This library 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.
 *
 * 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
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * @category    PHPExcel
 * @package        PHPExcel_Calculation
 * @copyright    Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license        http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
 * @version        ##VERSION##, ##DATE##
 */
class PHPExcel_Calculation_TextData
{
    private static $invalidChars;

    private static function unicodeToOrd($c)
    {
        if (ord($c{0}) >=0 && ord($c{0}) <= 127) {
            return ord($c{0});
        } elseif (ord($c{0}) >= 192 && ord($c{0}) <= 223) {
            return (ord($c{0})-192)*64 + (ord($c{1})-128);
        } elseif (ord($c{0}) >= 224 && ord($c{0}) <= 239) {
            return (ord($c{0})-224)*4096 + (ord($c{1})-128)*64 + (ord($c{2})-128);
        } elseif (ord($c{0}) >= 240 && ord($c{0}) <= 247) {
            return (ord($c{0})-240)*262144 + (ord($c{1})-128)*4096 + (ord($c{2})-128)*64 + (ord($c{3})-128);
        } elseif (ord($c{0}) >= 248 && ord($c{0}) <= 251) {
            return (ord($c{0})-248)*16777216 + (ord($c{1})-128)*262144 + (ord($c{2})-128)*4096 + (ord($c{3})-128)*64 + (ord($c{4})-128);
        } elseif (ord($c{0}) >= 252 && ord($c{0}) <= 253) {
            return (ord($c{0})-252)*1073741824 + (ord($c{1})-128)*16777216 + (ord($c{2})-128)*262144 + (ord($c{3})-128)*4096 + (ord($c{4})-128)*64 + (ord($c{5})-128);
        } elseif (ord($c{0}) >= 254 && ord($c{0}) <= 255) {
            // error
            return PHPExcel_Calculation_Functions::VALUE();
        }
        return 0;
    }