define wrap storage

src/Abstract/Entity/Browser/Container/Page/Content/Markup.php

@@ -16,12 +16,13 @@ abstract class Markup
     // Dependencies
     public Content $content;
 
-    // Extras
-    protected ?string $_source = null;
-
     // Defaults
     public const WRAP = 140;
 
+    // Extras
+    protected int $_wrap = self::WRAP;
+    protected ?string $_source = null;
+
     public function __construct(
         Content $content
     ) {

src/Entity/Browser/Container/Page/Content/Gemtext.php

@@ -315,15 +315,20 @@ class Gemtext extends Markup
     }
 
     private function _wrap(
-        string $value
+        string $source
     ): string
     {
-        return wordwrap(
-            $value,
-            $this::WRAP,
-            PHP_EOL,
-            false
-        );
+        if ($wrap = $this->_wrap ? $this->_wrap : $this::WRAP)
+        {
+            return wordwrap(
+                $source,
+                $wrap,
+                PHP_EOL,
+                false
+            );
+        }
+
+        throw new Exception;
     }
 
     private function _url(