- Work on Language Handler and extension.

- Added an URL extension which allows routes and URLs.
- Fixed some bug within ClassTemplate

src/Extension/LanguageExtension.php

@@ -2,12 +2,50 @@
 
 namespace Picea\Extension;
 
+use Picea\Compiler\Context;
+
 class LanguageExtension implements Extension {
 
-    public array $tokens = [ "lang", "_" ];
+    public array $tokens = [ "lang", "_", "language.set" ];
 
-    public function parse(/*\Picae\Compiler\Context*/ &$context, ?string $arguments, string $token) {
-        return "<?php /* echo lang($arguments) */ ?>";
+    public string $currentLanguage = "";
+    
+    protected LanguageHandler $languageHandler;
+
+    public function __construct(Context $context, LanguageHandler $handler) {
+        $this->register($context);
+        $this->languageHandler = $handler;
     }
 
+    public function parse(/*\Picae\Compiler\Context*/ &$context, ?string $arguments, string $token) : string
+    {
+        switch($token) {
+            case "language.set":
+                return "<?php \$picea->compiler->getExtensionFromToken('$token')->currentLanguage = $arguments; ?>";
+
+            case "lang":
+                return "<?php echo \$picea->compiler->getExtensionFromToken('$token')->absoluteLang($arguments) ?>";
+
+            case "_":
+                return "<?php echo \$picea->compiler->getExtensionFromToken('$token')->relativeLang($arguments) ?>";
+        }
+
+        return "";
+    }
+
+    public function register(Context $context) : void
+    {
+        $context->pushFunction("_",   [ $this, 'relativeLang' ]);
+        $context->pushFunction("lang", [ $this, 'absoluteLang' ]);
+    }
+    
+    public function relativeLang(string $key, array $variables = []) : string
+    {
+        return $this->languageHandler->languageFromKey("{$this->currentLanguage}.{$key}", $variables);
+    }
+
+    public function absoluteLang(string $key, array $variables = []) : string
+    {
+        return $this->languageHandler->languageFromKey($key, $variables);
+    }
 }