Viewing file:  AsIsNormalizerStrategy.php (2.35 KB) -rwxrwxr-x
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<?php
declare(strict_types=1);
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <colinodell@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\CommonMark\Extension\TableOfContents\Normalizer;
use League\CommonMark\Extension\CommonMark\Node\Block\ListBlock;
use League\CommonMark\Extension\CommonMark\Node\Block\ListItem;
use League\CommonMark\Extension\TableOfContents\Node\TableOfContents;
final class AsIsNormalizerStrategy implements NormalizerStrategyInterface
{
/** @psalm-readonly-allow-private-mutation */
private ListBlock $parentListBlock;
/** @psalm-readonly-allow-private-mutation */
private int $parentLevel = 1;
/** @psalm-readonly-allow-private-mutation */
private ?ListItem $lastListItem = null;
public function __construct(TableOfContents $toc)
{
$this->parentListBlock = $toc;
}
public function addItem(int $level, ListItem $listItemToAdd): void
{
while ($level > $this->parentLevel) {
// Descend downwards, creating new ListBlocks if needed, until we reach the correct depth
if ($this->lastListItem === null) {
$this->lastListItem = new ListItem($this->parentListBlock->getListData());
$this->parentListBlock->appendChild($this->lastListItem);
}
$newListBlock = new ListBlock($this->parentListBlock->getListData());
$newListBlock->setStartLine($listItemToAdd->getStartLine());
$newListBlock->setEndLine($listItemToAdd->getEndLine());
$this->lastListItem->appendChild($newListBlock);
$this->parentListBlock = $newListBlock;
$this->lastListItem = null;
$this->parentLevel++;
}
while ($level < $this->parentLevel) {
// Search upwards for the previous parent list block
$search = $this->parentListBlock;
while ($search = $search->parent()) {
if ($search instanceof ListBlock) {
$this->parentListBlock = $search;
break;
}
}
$this->parentLevel--;
}
$this->parentListBlock->appendChild($listItemToAdd);
$this->lastListItem = $listItemToAdd;
}
}
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