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Editing:TreeStyle.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Console\Helper;

/**
 * Configures the output of the Tree helper.
 *
 * @author Simon André <smn.andre@gmail.com>
 */
final class TreeStyle
{
    public function __construct(
        private readonly string $prefixEndHasNext,
        private readonly string $prefixEndLast,
        private readonly string $prefixLeft,
        private readonly string $prefixMidHasNext,
        private readonly string $prefixMidLast,
        private readonly string $prefixRight,
    ) {
    }

public static function box(): self
    {
        return new self('┃╸ ', '┗╸ ', '', '┃  ', '   ', '');
    }

public static function boxDouble(): self
    {
        return new self('╠═ ', '╚═ ', '', '║  ', '  ', '');
    }

public static function compact(): self
    {
        return new self('├ ', '└ ', '', '│ ', '  ', '');
    }

public static function default(): self
    {
        return new self('├── ', '└── ', '', '│   ', '   ', '');
    }

public static function light(): self
    {
        return new self('|-- ', '`-- ', '', '|   ', '    ', '');
    }

public static function minimal(): self
    {
        return new self('. ', '. ', '', '. ', '  ', '');
    }

public static function rounded(): self
    {
        return new self('├─ ', '╰─ ', '', '│  ', '   ', '');
    }

/**
     * @internal
     */
    public function applyPrefixes(\RecursiveTreeIterator $iterator): void
    {
        $iterator->setPrefixPart(\RecursiveTreeIterator::PREFIX_LEFT, $this->prefixLeft);
        $iterator->setPrefixPart(\RecursiveTreeIterator::PREFIX_MID_HAS_NEXT, $this->prefixMidHasNext);
        $iterator->setPrefixPart(\RecursiveTreeIterator::PREFIX_MID_LAST, $this->prefixMidLast);
        $iterator->setPrefixPart(\RecursiveTreeIterator::PREFIX_END_HAS_NEXT, $this->prefixEndHasNext);
        $iterator->setPrefixPart(\RecursiveTreeIterator::PREFIX_END_LAST, $this->prefixEndLast);
        $iterator->setPrefixPart(\RecursiveTreeIterator::PREFIX_RIGHT, $this->prefixRight);
    }
}

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Editing:TreeStyle.php