Refactor namespace/shortname parsing into own method

Allows you to more easily create a custom file loader with a custom
namespace syntax.

diff --git a/lib/Twig/Loader/Filesystem.php b/lib/Twig/Loader/Filesystem.php
index 2d6170c..d0ae1cc 100644 (file)
--- a/lib/Twig/Loader/Filesystem.php
+++ b/lib/Twig/Loader/Filesystem.php
@@ -176,16 +176,7 @@ class Twig_Loader_Filesystem implements Twig_LoaderInterface, Twig_ExistsLoaderI
 
         $this->validateName($name);
 
-        $namespace = self::MAIN_NAMESPACE;
-        $shortname = $name;
-        if (isset($name[0]) && '@' == $name[0]) {
-            if (false === $pos = strpos($name, '/')) {
-                throw new Twig_Error_Loader(sprintf('Malformed namespaced template name "%s" (expecting "@namespace/template_name").', $name));
-            }
-
-            $namespace = substr($name, 1, $pos - 1);
-            $shortname = substr($name, $pos + 1);
-        }
+        list($namespace, $shortname) = $this->parseName($name);
 
         if (!isset($this->paths[$namespace])) {
             throw new Twig_Error_Loader(sprintf('There are no registered paths for namespace "%s".', $namespace));
@@ -200,6 +191,22 @@ class Twig_Loader_Filesystem implements Twig_LoaderInterface, Twig_ExistsLoaderI
         throw new Twig_Error_Loader(sprintf('Unable to find template "%s" (looked into: %s).', $name, implode(', ', $this->paths[$namespace])));
     }
 
+    protected function parseName($name, $default = self::MAIN_NAMESPACE)
+    {
+        if (isset($name[0]) && '@' == $name[0]) {
+            if (false === $pos = strpos($name, '/')) {
+                throw new Twig_Error_Loader(sprintf('Malformed namespaced template name "%s" (expecting "@namespace/template_name").', $name));
+            }
+
+            $namespace = substr($name, 1, $pos - 1);
+            $shortname = substr($name, $pos + 1);
+
+            return array($namespace, $shortname);
+        }
+
+        return array($default, $name);
+    }
+
     protected function normalizeName($name)
     {
         return preg_replace('#/{2,}#', '/', strtr((string) $name, '\\', '/'));