Now more functionality for references works, although Im not sure this is the correct place for it to live

Author: Andy Raines

src/JsonSchema/RefResolver.php

@@ -41,6 +41,11 @@ class RefResolver
      */
     protected $uriRetriever = null;
 
+    /**
+     * @var object
+     */
+    protected $rootSchema = null;
+
     /**
      * @param UriRetriever $retriever
      */
@@ -110,6 +115,10 @@ public function resolve($schema, $sourceUri = null)
             $sourceUri = $schema->id;
         }
 
+        if (null === $this->rootSchema) {
+            $this->rootSchema = $schema;
+        }
+
         // Resolve $ref first
         $this->resolveRef($schema, $sourceUri);
 
@@ -205,7 +214,30 @@ public function resolveRef($schema, $sourceUri)
             return;
         }
 
-        $refSchema = $this->fetchRef($schema->$ref, $sourceUri);
+        $splitRef = explode('#', $schema->$ref, 2);
+
+        $refDoc = $splitRef[0];
+        $refPath = null;
+        if (count($splitRef) === 2) {
+            $refPath = explode('/', $splitRef[1]);
+            array_shift($refPath);
+        }
+
+        if (empty($refDoc) && empty($refPath)) {
+            // TODO: Not yet implemented - root pointer ref, causes recursion issues
+            return;
+        }
+
+        if (!empty($refDoc)) {
+            $refSchema = $this->fetchRef($refDoc, $sourceUri);
+        } else {
+            $refSchema = $this->rootSchema;
+        }
+
+        if (null !== $refPath) {
+            $refSchema = $this->resolveRefSegment($refSchema, $refPath);
+        }
+
         unset($schema->$ref);
 
         // Augment the current $schema object with properties fetched
@@ -226,4 +258,19 @@ public function setUriRetriever(UriRetriever $retriever)
 
         return $this;
     }
+
+    protected function resolveRefSegment($data, $pathParts)
+    {
+        foreach ($pathParts as $path) {
+            $path = strtr($path, array('~1' => '/', '~0' => '~', '%25' => '%'));
+
+            if (is_array($data)) {
+                $data = $data[$path];
+            } else {
+                $data = $data->{$path};
+            }
+        }
+
+        return $data;
+    }
 }