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<?php
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declare(strict_types=1);
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/*
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* This file is part of the league/commonmark package.
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*
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* (c) Colin O'Dell <colinodell@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace League\CommonMark\Extension\CommonMark\Parser\Block;
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use League\CommonMark\Parser\Block\BlockStart;
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use League\CommonMark\Parser\Block\BlockStartParserInterface;
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use League\CommonMark\Parser\Cursor;
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use League\CommonMark\Parser\MarkdownParserStateInterface;
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use League\CommonMark\Util\RegexHelper;
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final class ThematicBreakStartParser implements BlockStartParserInterface
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{
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public function tryStart(Cursor $cursor, MarkdownParserStateInterface $parserState): ?BlockStart
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{
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if ($cursor->isIndented()) {
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return BlockStart::none();
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}
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$match = RegexHelper::matchAt(RegexHelper::REGEX_THEMATIC_BREAK, $cursor->getLine(), $cursor->getNextNonSpacePosition());
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if ($match === null) {
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return BlockStart::none();
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}
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// Advance to the end of the string, consuming the entire line (of the thematic break)
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$cursor->advanceToEnd();
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return BlockStart::of(new ThematicBreakParser())->at($cursor);
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}
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}
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