Файл: vendor/league/commonmark/src/Extension/CommonMark/Parser/Block/FencedCodeParser.php
Строк: 134
<?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 LeagueCommonMarkExtensionCommonMarkParserBlock;
use LeagueCommonMarkExtensionCommonMarkNodeBlockFencedCode;
use LeagueCommonMarkParserBlockAbstractBlockContinueParser;
use LeagueCommonMarkParserBlockBlockContinue;
use LeagueCommonMarkParserBlockBlockContinueParserInterface;
use LeagueCommonMarkParserCursor;
use LeagueCommonMarkUtilArrayCollection;
use LeagueCommonMarkUtilRegexHelper;
final class FencedCodeParser extends AbstractBlockContinueParser
{
/** @psalm-readonly */
private FencedCode $block;
/** @var ArrayCollection<string> */
private ArrayCollection $strings;
public function __construct(int $fenceLength, string $fenceChar, int $fenceOffset)
{
$this->block = new FencedCode($fenceLength, $fenceChar, $fenceOffset);
$this->strings = new ArrayCollection();
}
public function getBlock(): FencedCode
{
return $this->block;
}
public function tryContinue(Cursor $cursor, BlockContinueParserInterface $activeBlockParser): ?BlockContinue
{
// Check for closing code fence
if (! $cursor->isIndented() && $cursor->getNextNonSpaceCharacter() === $this->block->getChar()) {
$match = RegexHelper::matchFirst('/^(?:`{3,}|~{3,})(?=[ t]*$)/', $cursor->getLine(), $cursor->getNextNonSpacePosition());
if ($match !== null && strlen($match[0]) >= $this->block->getLength()) {
// closing fence - we're at end of line, so we can finalize now
return BlockContinue::finished();
}
}
// Skip optional spaces of fence offset
// Optimization: don't attempt to match if we're at a non-space position
if ($cursor->getNextNonSpacePosition() > $cursor->getPosition()) {
$cursor->match('/^ {0,' . $this->block->getOffset() . '}/');
}
return BlockContinue::at($cursor);
}
public function addLine(string $line): void
{
$this->strings[] = $line;
}
public function closeBlock(): void
{
// first line becomes info string
$firstLine = $this->strings->first();
if ($firstLine === false) {
$firstLine = '';
}
$this->block->setInfo(RegexHelper::unescape(trim($firstLine)));
if ($this->strings->count() === 1) {
$this->block->setLiteral('');
} else {
$this->block->setLiteral(implode("n", $this->strings->slice(1)) . "n");
}
}
}