<?php
namespace MailPoetVendor\Symfony\Component\Finder;
if (!defined('ABSPATH')) exit;
class Gitignore
{
public static function toRegex(string $gitignoreFileContent) : string
{
$gitignoreFileContent = \preg_replace('~(?<!\\\\)#[^\\n\\r]*~', '', $gitignoreFileContent);
$gitignoreLines = \preg_split('~\\r\\n?|\\n~', $gitignoreFileContent);
$res = self::lineToRegex('');
foreach ($gitignoreLines as $i => $line) {
$line = \preg_replace('~(?<!\\\\)[ \\t]+$~', '', $line);
if ('!' === \substr($line, 0, 1)) {
$line = \substr($line, 1);
$isNegative = \true;
} else {
$isNegative = \false;
}
if ('' !== $line) {
if ($isNegative) {
$res = '(?!' . self::lineToRegex($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, '/') ? '(?:$|/)' : '');
}
}