first commit

2024-08-27 17:48:06 +05:45
commit 53c0140f58
10839 changed files with 1125847 additions and 0 deletions
--- a/vendor/symfony/yaml/Unescaper.php
+++ b/vendor/symfony/yaml/Unescaper.php
@ -0,0 +1,108 @@
+<?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\Yaml;
+
+use Symfony\Component\Yaml\Exception\ParseException;
+
+/**
+ * Unescaper encapsulates unescaping rules for single and double-quoted
+ * YAML strings.
+ *
+ * @author Matthew Lewinski <matthew@lewinski.org>
+ *
+ * @internal
+ */
+class Unescaper
+{
+    /**
+     * Regex fragment that matches an escaped character in a double quoted string.
+     */
+    public const REGEX_ESCAPED_CHARACTER = '\\\\(x[0-9a-fA-F]{2}|u[0-9a-fA-F]{4}|U[0-9a-fA-F]{8}|.)';
+
+    /**
+     * Unescapes a single quoted string.
+     *
+     * @param string $value A single quoted string
+     */
+    public function unescapeSingleQuotedString(string $value): string
+    {
+        return str_replace('\'\'', '\'', $value);
+    }
+
+    /**
+     * Unescapes a double quoted string.
+     *
+     * @param string $value A double quoted string
+     */
+    public function unescapeDoubleQuotedString(string $value): string
+    {
+        $callback = fn ($match) => $this->unescapeCharacter($match[0]);
+
+        // evaluate the string
+        return preg_replace_callback('/'.self::REGEX_ESCAPED_CHARACTER.'/u', $callback, $value);
+    }
+
+    /**
+     * Unescapes a character that was found in a double-quoted string.
+     *
+     * @param string $value An escaped character
+     */
+    private function unescapeCharacter(string $value): string
+    {
+        return match ($value[1]) {
+            '0' => "\x0",
+            'a' => "\x7",
+            'b' => "\x8",
+            't' => "\t",
+            "\t" => "\t",
+            'n' => "\n",
+            'v' => "\xB",
+            'f' => "\xC",
+            'r' => "\r",
+            'e' => "\x1B",
+            ' ' => ' ',
+            '"' => '"',
+            '/' => '/',
+            '\\' => '\\',
+            // U+0085 NEXT LINE
+            'N' => "\xC2\x85",
+            // U+00A0 NO-BREAK SPACE
+            '_' => "\xC2\xA0",
+            // U+2028 LINE SEPARATOR
+            'L' => "\xE2\x80\xA8",
+            // U+2029 PARAGRAPH SEPARATOR
+            'P' => "\xE2\x80\xA9",
+            'x' => self::utf8chr(hexdec(substr($value, 2, 2))),
+            'u' => self::utf8chr(hexdec(substr($value, 2, 4))),
+            'U' => self::utf8chr(hexdec(substr($value, 2, 8))),
+            default => throw new ParseException(sprintf('Found unknown escape character "%s".', $value)),
+        };
+    }
+
+    /**
+     * Get the UTF-8 character for the given code point.
+     */
+    private static function utf8chr(int $c): string
+    {
+        if (0x80 > $c %= 0x200000) {
+            return \chr($c);
+        }
+        if (0x800 > $c) {
+            return \chr(0xC0 | $c >> 6).\chr(0x80 | $c & 0x3F);
+        }
+        if (0x10000 > $c) {
+            return \chr(0xE0 | $c >> 12).\chr(0x80 | $c >> 6 & 0x3F).\chr(0x80 | $c & 0x3F);
+        }
+
+        return \chr(0xF0 | $c >> 18).\chr(0x80 | $c >> 12 & 0x3F).\chr(0x80 | $c >> 6 & 0x3F).\chr(0x80 | $c & 0x3F);
+    }
+}