Update website

vendor/symfony/finder/Gitignore.php

@@ -0,0 +1,93 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+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, '/') ? '(?:$|/)' : '');
+    }
+}