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Filename : AbstractElement.php
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<?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
 *
 * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
 */

namespace PhpOffice\PhpWord\Writer\ODText\Element;

use PhpOffice\PhpWord\Writer\Word2007\Element\AbstractElement as Word2007AbstractElement;

/**
 * Abstract element writer.
 *
 * @since 0.11.0
 */
abstract class AbstractElement extends Word2007AbstractElement
{
    protected function replaceTabs($text, $xmlWriter): void
    {
        if (preg_match('/^ +/', $text, $matches)) {
            $num = strlen($matches[0]);
            $xmlWriter->startElement('text:s');
            $xmlWriter->writeAttributeIf($num > 1, 'text:c', "$num");
            $xmlWriter->endElement();
            $text = preg_replace('/^ +/', '', $text);
        }
        preg_match_all('/([\\s\\S]*?)(\\t|  +| ?$)/', $text, $matches, PREG_SET_ORDER);
        foreach ($matches as $match) {
            $this->writeText($match[1]);
            if ($match[2] === '') {
                break;
            } elseif ($match[2] === "\t") {
                $xmlWriter->writeElement('text:tab');
            } elseif ($match[2] === ' ') {
                $xmlWriter->writeElement('text:s');

                break;
            } else {
                $num = strlen($match[2]);
                $xmlWriter->startElement('text:s');
                $xmlWriter->writeAttributeIf($num > 1, 'text:c', "$num");
                $xmlWriter->endElement();
            }
        }
    }
}