function DocParser::findInitialTokenPosition

Same name in this branch

11.1.x core/lib/Drupal/Component/Annotation/Doctrine/DocParser.php \Drupal\Component\Annotation\Doctrine\DocParser::findInitialTokenPosition()

Finds the first valid annotation

1 call to DocParser::findInitialTokenPosition()

DocParser::parse in vendor/doctrine/annotations/lib/Doctrine/Common/Annotations/DocParser.php: Parses the given docblock string for annotations.

File

vendor/doctrine/annotations/lib/Doctrine/Common/Annotations/DocParser.php, line 376

Class

DocParser: A parser for docblock annotations.

Namespace

Doctrine\Common\Annotations

Code

private function findInitialTokenPosition(string $input) : ?int {
    $pos = 0;
    // search for first valid annotation
    while (($pos = strpos($input, '@', $pos)) !== false) {
        $preceding = substr($input, $pos - 1, 1);
        // if the @ is preceded by a space, a tab or * it is valid
        if ($pos === 0 || $preceding === ' ' || $preceding === '*' || $preceding === "\t") {
            return $pos;
        }
        $pos++;
    }
    return null;
}