feat: Add boolean token

src/Backend/File/Token/BooleanToken.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the famoser/pdf-generator project.
+ *
+ * (c) Florian Moser <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Famoser\PdfGenerator\Backend\File\Token;
+
+use Famoser\PdfGenerator\Backend\File\Token\Base\BaseToken;
+use Famoser\PdfGenerator\Backend\File\TokenVisitor;
+
+class BooleanToken extends BaseToken
+{
+    public function __construct(private readonly bool $value)
+    {
+    }
+
+    public function getValue(): bool
+    {
+        return $this->value;
+    }
+
+    public function accept(TokenVisitor $visitor): string
+    {
+        return $visitor->visitBoolToken($this);
+    }
+}

src/Backend/File/Token/DictionaryToken.php

@@ -30,6 +30,11 @@ public function setArrayEntry(string $key, array $tokens): void
         $this->setEntry($key, new ArrayToken($tokens));
     }
 
+    public function setBooleanEntry(string $key, bool $value): void
+    {
+        $this->setEntry($key, new BooleanToken($value));
+    }
+
     public function setTextEntry(string $key, string $value): void
     {
         $this->setEntry($key, new TextToken($value));

src/Backend/File/TokenVisitor.php

@@ -35,6 +35,11 @@ public function visitNumberToken(NumberToken $token): string
         return strval(NumberToken::format($token->getNumber()));
     }
 
+    public function visitBoolToken(Token\BooleanToken $param): string
+    {
+        return $param->getValue() ? 'true' : 'false';
+    }
+
     public function visitDictionaryToken(DictionaryToken $token): string
     {
         $entries = [];