StringFragmentCollection.php

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<?php
 
declare(strict_types=1);
 
/*
 * 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!
 */
 
namespace ‪TYPO3\CMS\Core\Utility\String;
 
class ‪StringFragmentCollection implements \Stringable, \Countable
{
    protected array ‪$fragments;
 
    protected int ‪$length = 0;
 
    public function ‪__construct(‪StringFragment ...‪$fragments)
    {
        $lengths = array_map(static fn(‪StringFragment $fragment) => $fragment->length, ‪$fragments);
        $this->‪length = array_sum($lengths);
        $this->fragments = ‪$fragments;
    }
 
    public function ‪__toString(): string
    {
        return implode('', array_map('strval', $this->fragments));
    }
 
    public function ‪count(): int
    {
        return ‪count($this->fragments);
    }
 
    public function ‪with(‪StringFragment ...‪$fragments): self
    {
        $target = clone $this;
        foreach (‪$fragments as $fragment) {
            $target->length += $fragment->length;
            $target->fragments[] = $fragment;
        }
        return $target;
    }
 
    public function ‪withOnlyType(string $type): self
    {
        ‪$fragments = array_filter(
            $this->fragments,
            static fn(‪StringFragment $item) => $item->type === $type
        );
        return new self(...$fragments);
    }
 
    public function ‪withoutType(string $type): self
    {
        ‪$fragments = array_filter(
            $this->fragments,
            static fn(‪StringFragment $item) => $item->type !== $type
        );
        return new self(...$fragments);
    }
 
    public function ‪getFragments(): array
    {
        return ‪$this->fragments;
    }
 
    public function ‪getLength(): int
    {
        return ‪$this->length;
    }
 
    public function ‪diff(self $other): self
    {
        $otherFragmentIdents = $other->getFragmentIdents();
        $differentFragments = array_filter(
            $this->fragments,
            static fn(‪StringFragment $item) => !in_array($item->ident, $otherFragmentIdents, true)
        );
        return new self(...$differentFragments);
    }
 
    public function ‪intersect(self $other): self
    {
        $otherFragmentIdents = $other->getFragmentIdents();
        $sameFragments = array_filter(
            $this->fragments,
            static fn(‪StringFragment $item) => in_array($item->ident, $otherFragmentIdents, true)
        );
        return new self(...$sameFragments);
    }
 
    protected function ‪getFragmentIdents(): array
    {
        return array_map(static fn(‪StringFragment $item) => $item->ident, $this->fragments);
    }
}