- Small refractoring of code, merge tokens

- Completed block token

src/ControlStructure/SectionToken.php

@@ -4,9 +4,24 @@ namespace Picea\ControlStructure;
 
 class SectionToken implements ControlStructure {
 
-    public string $token = "section";
+    public array $token = [ "section", "endsection" ];
 
     public function parse(/*\Picae\Compiler\Context*/ &$context, ?string $arguments, string $token) {
+        switch($token) {
+            case "section":
+                return $this->printSection($context, $arguments);
+                
+            case "endsection":
+                if ( empty($context->sections) ) {
+                    throw new \RuntimeException("A section closing tag {% endsection %} was found without an opening {% section %} tag");
+                }
+
+                return $this->printEndSection($context);
+        }
+    }
+    
+    protected function printSection($context, ?string $arguments) : string
+    {
         list($name, $options) = array_pad(explode(',', $arguments, 2), 2, null);
 
         if ( $options ?? false ) {
@@ -34,4 +49,11 @@ class SectionToken implements ControlStructure {
                       \$___class__template->sectionList[$name]['$action'][] = [ 'order' => $order, 'callback' => function() use (\$picea, \$___class__template, \$___global_variables, \$___variables) {
                           extract(\$___global_variables); extract(\$___variables, \EXTR_OVERWRITE); ?>";
     }
-}
+
+    protected function printEndSection($context) : string
+    {            
+        $section = array_pop($context->sections);
+        $build = $context->extendFrom ? "" : "\$___class__template->renderSection({$section['name']});";
+        return "<?php }]; $build?>";
+    }
+}