League\CommonMark\Extension\CommonMark\Parser\Block\FencedCodeStartParser::tryStart()

Complexity

Conditions	7
Paths	4

Size

Total Lines

23

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	13
CRAP Score	7

Importance

Changes

0

<?php
    public function tryStart(Cursor $cursor, MarkdownParserStateInterface $parserState): ?BlockStart
    {
        if ($cursor->isIndented()) {
            return BlockStart::none();
        }

        $c = $cursor->getCharacter();
        if ($c !== ' ' && $c !== "\t" && $c !== '`' && $c !== '~') {
            return BlockStart::none();
        }

        $indent = $cursor->getIndent();
        $fence = $cursor->match('/^[ \t]*(?:`{3,}(?!.*`)|^~{3,})/');
        if ($fence === null) {
            return BlockStart::none();
        }

        // fenced code block
        $fence = \ltrim($fence, " \t");
        $fenceLength = \strlen($fence);

        return BlockStart::of(new FencedCodeParser($fenceLength, $fence[0], $indent))->at($cursor);
    }
}