allow vendord

vendor/sabberworm/php-css-parser/src/Property/Charset.php

@@ -0,0 +1,74 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Sabberworm\CSS\Property;
+
+use Sabberworm\CSS\Comment\CommentContainer;
+use Sabberworm\CSS\OutputFormat;
+use Sabberworm\CSS\Position\Position;
+use Sabberworm\CSS\Position\Positionable;
+use Sabberworm\CSS\Value\CSSString;
+
+/**
+ * Class representing an `@charset` rule.
+ *
+ * The following restrictions apply:
+ * - May not be found in any CSSList other than the Document.
+ * - May only appear at the very top of a Document’s contents.
+ * - Must not appear more than once.
+ */
+class Charset implements AtRule, Positionable
+{
+    use CommentContainer;
+    use Position;
+
+    /**
+     * @var CSSString
+     */
+    private $charset;
+
+    /**
+     * @param int<1, max>|null $lineNumber
+     */
+    public function __construct(CSSString $charset, ?int $lineNumber = null)
+    {
+        $this->charset = $charset;
+        $this->setPosition($lineNumber);
+    }
+
+    /**
+     * @param string|CSSString $charset
+     */
+    public function setCharset($charset): void
+    {
+        $charset = $charset instanceof CSSString ? $charset : new CSSString($charset);
+        $this->charset = $charset;
+    }
+
+    public function getCharset(): string
+    {
+        return $this->charset->getString();
+    }
+
+    /**
+     * @return non-empty-string
+     */
+    public function render(OutputFormat $outputFormat): string
+    {
+        return "{$outputFormat->getFormatter()->comments($this)}@charset {$this->charset->render($outputFormat)};";
+    }
+
+    /**
+     * @return non-empty-string
+     */
+    public function atRuleName(): string
+    {
+        return 'charset';
+    }
+
+    public function atRuleArgs(): CSSString
+    {
+        return $this->charset;
+    }
+}