<?php

namespace Symfony\Component\Finder;

/**
 * Gitignore matches against text.
 *
 * @author Michael Voříšek <vorismi3@fel.cvut.cz>
 * @author Ahmed Abdou <mail@ahmd.io>
 */
class Gitignore
{
    /**
     * Returns a regexp which is the equivalent of the gitignore pattern.
     *
     * Format specification: https://git-scm.com/docs/gitignore#_pattern_format
     */
    public static function toRegex(string $gitignoreFileContent): string
    {
        return self::buildRegex($gitignoreFileContent, false);
    }

    public static function toRegexMatchingNegatedPatterns(string $gitignoreFileContent): string
    {
        return self::buildRegex($gitignoreFileContent, true);
    }

    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 ('!' === substr($line, 0, 1)) {
                $line = substr($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';
    }

    private static function lineToRegex(string $gitignoreLine): string
    {
        if ('' === $gitignoreLine) {
            return '$f'; // always false
        }

        $slashPos = strpos($gitignoreLine, '/');
        if (false !== $slashPos && \strlen($gitignoreLine) - 1 !== $slashPos) {
            if (0 === $slashPos) {
                $gitignoreLine = substr($gitignoreLine, 1);
            }
            $isAbsolute = true;
        } else {
            $isAbsolute = false;
        }

        $regex = preg_quote(str_replace('\\', '', $gitignoreLine), '~');
        $regex = preg_replace_callback('~\\\\\[((?:\\\\!)?)([^\[\]]*)\\\\\]~', function (array $matches): string {
            return '['.('' !== $matches[1] ? '^' : '').str_replace('\\-', '-', $matches[2]).']';
        }, $regex);
        $regex = preg_replace('~(?:(?:\\\\\*){2,}(/?))+~', '(?:(?:(?!//).(?<!//))+$1)?', $regex);
        $regex = preg_replace('~\\\\\*~', '[^/]*', $regex);
        $regex = preg_replace('~\\\\\?~', '[^/]', $regex);

        return ($isAbsolute ? '' : '(?:[^/]+/)*')
            .$regex
            .(!str_ends_with($gitignoreLine, '/') ? '(?:$|/)' : '');
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MzYxMjI1MzMxMDkzMDgyMSAxODQ0NDQzNDA5NTU3NDczIDczMjkzNTQ2NTcxMjE0NjA=