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📄 AbstractEscaper.php
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📄 EscaperInterface.php
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📄 RegExp.php
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📄 Rtf.php
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📄 Xml.php
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Edit File: Rtf.php
<?php /** * This file is part of PHPWord - A pure PHP library for reading and writing * word processing documents. * * PHPWord is free software distributed under the terms of the GNU Lesser * General Public License version 3 as published by the Free Software Foundation. * * For the full copyright and license information, please read the LICENSE * file that was distributed with this source code. For the full list of * contributors, visit https://github.com/PHPOffice/PHPWord/contributors. * * @see https://github.com/PHPOffice/PHPWord * @copyright 2010-2017 PHPWord contributors * @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3 */ namespace PhpOffice\PhpWord\Escaper; /** * @since 0.13.0 * * @codeCoverageIgnore */ class Rtf extends AbstractEscaper { protected function escapeAsciiCharacter($code) { if (20 > $code || $code >= 80) { return '{\u' . $code . '}'; } return chr($code); } protected function escapeMultibyteCharacter($code) { return '\uc0{\u' . $code . '}'; } /** * @see http://www.randomchaos.com/documents/?source=php_and_unicode * @param string $input */ protected function escapeSingleValue($input) { $escapedValue = ''; $numberOfBytes = 1; $bytes = array(); for ($i = 0; $i < strlen($input); ++$i) { $character = $input[$i]; $asciiCode = ord($character); if ($asciiCode < 128) { $escapedValue .= $this->escapeAsciiCharacter($asciiCode); } else { if (0 == count($bytes)) { if ($asciiCode < 224) { $numberOfBytes = 2; } elseif ($asciiCode < 240) { $numberOfBytes = 3; } elseif ($asciiCode < 248) { $numberOfBytes = 4; } } $bytes[] = $asciiCode; if ($numberOfBytes == count($bytes)) { if (4 == $numberOfBytes) { $multibyteCode = ($bytes[0] % 8) * 262144 + ($bytes[1] % 64) * 4096 + ($bytes[2] % 64) * 64 + ($bytes[3] % 64); } elseif (3 == $numberOfBytes) { $multibyteCode = ($bytes[0] % 16) * 4096 + ($bytes[1] % 64) * 64 + ($bytes[2] % 64); } else { $multibyteCode = ($bytes[0] % 32) * 64 + ($bytes[1] % 64); } if (65279 != $multibyteCode) { $escapedValue .= $multibyteCode < 128 ? $this->escapeAsciiCharacter($multibyteCode) : $this->escapeMultibyteCharacter($multibyteCode); } $numberOfBytes = 1; $bytes = array(); } } } return $escapedValue; } }
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