Enable XML and run code examples

Author: Nyholm

composer.json

@@ -46,7 +46,11 @@
         "preferred-install": {
             "*": "dist"
         },
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "bamarni/composer-bin-plugin": true,
+            "symfony/flex": true
+        }
     },
     "extra": {
         "symfony": {

src/Service/CodeRunner/ConfigurationRunner.php

@@ -13,7 +13,7 @@
  *
  * @author Tobias Nyholm <tobias.nyholm@gmail.com>
  */
-class ConfigurationRunner
+class ConfigurationRunner implements Runner
 {
     /**
      * @param list<CodeNode> $nodes
@@ -77,7 +77,7 @@ private function getFile(CodeNode $node, array $contents): string
         $regex = match ($node->getLanguage()) {
             'php' => '|^// ?([a-z1-9A-Z_\-/]+\.php)$|',
             'yaml' => '|^# ?([a-z1-9A-Z_\-/]+\.yaml)$|',
-            //'xml' => '|^<!-- ?([a-z1-9A-Z_\-/]+\.xml) ?-->$|',
+            'xml' => '|^<!-- ?([a-z1-9A-Z_\-/]+\.xml) ?-->$|',
             default => null,
         };