9.5/_array_processor_8php_source.html

<?php

declare(strict_types = 1);

namespace ‪TYPO3\CMS\Form\Domain\Configuration\ArrayProcessing;


/*

 * This file is part of the TYPO3 CMS project.

 *

 * It is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, either version 2

 * of the License, or any later version.

 *

 * For the full copyright and license information, please read the

 * LICENSE.txt file that was distributed with this source code.

 *

 * The TYPO3 project - inspiring people to share!

 */


use ‪TYPO3\CMS\Core\Utility\ArrayUtility;

use ‪TYPO3\CMS\Form\Domain\Configuration\Exception\ArrayProcessorException;


class ‪ArrayProcessor

{


    protected ‪$data;


    public function ‪__construct(array ‪$data)

    {

        $this->data = ‪ArrayUtility::flatten(‪$data);

    }


    public function ‪forEach(...$processings): array

    {

        $result = [];


        $processings = $this->‪getValidProcessings($processings);

        foreach ($this->data as $key => $value) {

            foreach ($processings as $processing) {

                // explicitly escaping non-escaped '#' which is used

                // as PCRE delimiter in the following processing

                ‪$expression = preg_replace(

                    '/(?<!\\\\)#/',

                    '\\#',

                    $processing->getExpression()

                );


                if (preg_match('#' . ‪$expression . '#', $key, $matches)) {

                    ‪$identifier = $processing->getIdentifier();

                    ‪$processor = $processing->getProcessor();

                    $result[‪$identifier] = $result[‪$identifier] ?? [];

                    $result[‪$identifier][$key] = ‪$processor($key, $value, $matches);

                }

            }

        }


        return $result;

    }


    protected function ‪getValidProcessings(array $allProcessings): array

    {

        $validProcessings = [];

        $identifiers = [];

        foreach ($allProcessings as $processing) {

            if ($processing instanceof ‪ArrayProcessing) {

                if (in_array($processing->getIdentifier(), $identifiers, true)) {

                    throw new ‪ArrayProcessorException(

                        'ArrayProcessing identifier must be unique.',

                        1528638085

                    );

                }

                $identifiers[] = $processing->getIdentifier();

                $validProcessings[] = $processing;

            }

        }

        return $validProcessings;

    }

}