function Gitignore::buildRegex

2 calls to Gitignore::buildRegex()

Gitignore::toRegex in vendor/symfony/finder/Gitignore.php

Returns a regexp which is the equivalent of the gitignore pattern.

Gitignore::toRegexMatchingNegatedPatterns in vendor/symfony/finder/Gitignore.php

File

vendor/symfony/finder/Gitignore.php, line 37

Class

Gitignore

Gitignore matches against text.

Namespace

Symfony\Component\Finder

Code

private static function buildRegex(string $gitignoreFileContent, bool $inverted) : string {
    $gitignoreFileContent = preg_replace('~(?<!\\\\)#[^\\n\\r]*~', '', $gitignoreFileContent);
    $gitignoreLines = preg_split('~\\r\\n?|\\n~', $gitignoreFileContent);
    $res = self::lineToRegex('');
    foreach ($gitignoreLines as $line) {
        $line = preg_replace('~(?<!\\\\)[ \\t]+$~', '', $line);
        if (str_starts_with($line, '!')) {
            $line = substr($line, 1);
            $isNegative = true;
        }
        else {
            $isNegative = false;
        }
        if ('' !== $line) {
            if ($isNegative xor $inverted) {
                $res = '(?!' . self::lineToRegex($line) . '$)' . $res;
            }
            else {
                $res = '(?:' . $res . '|' . self::lineToRegex($line) . ')';
            }
        }
    }
    return '~^(?:' . $res . ')~s';
}