<?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\CommonMark\Parser\Block;
use League\CommonMark\Extension\CommonMark\Node\Block\IndentedCode;
use League\CommonMark\Parser\Block\AbstractBlockContinueParser;
use League\CommonMark\Parser\Block\BlockContinue;
use League\CommonMark\Parser\Block\BlockContinueParserInterface;
use League\CommonMark\Parser\Cursor;
use League\CommonMark\Util\ArrayCollection;
final class IndentedCodeParser extends AbstractBlockContinueParser
{
/** @psalm-readonly */
private IndentedCode $block;
/** @var ArrayCollection<string> */
private ArrayCollection $strings;
public function __construct()
{
$this->block = new IndentedCode();
$this->strings = new ArrayCollection();
}
public function getBlock(): IndentedCode
{
return $this->block;
}
public function tryContinue(Cursor $cursor, BlockContinueParserInterface $activeBlockParser): ?BlockContinue
{
if ($cursor->isIndented()) {
$cursor->advanceBy(Cursor::INDENT_LEVEL, true);
return BlockContinue::at($cursor);
}
if ($cursor->isBlank()) {
$cursor->advanceToNextNonSpaceOrTab();
return BlockContinue::at($cursor);
}
return BlockContinue::none();
}
public function addLine(string $line): void
{
$this->strings[] = $line;
}
public function closeBlock(): void
{
$lines = $this->strings->toArray();
// Note that indented code block cannot be empty, so $lines will always have at least one non-empty element
while (\preg_match('/^[ \t]*$/', \end($lines))) { // @phpstan-ignore-line
\array_pop($lines);
}
$this->block->setLiteral(\implode("\n", $lines) . "\n");
$this->block->setEndLine($this->block->getStartLine() + \count($lines) - 1);
}
}