Adding Urifragment filter

lib/Haanga/lib/Haanga/Extension/Filter/Urifragment.php

+<?php
+
+class Haanga_Extension_Filter_Urifragment
+{
+    static function generator($compiler, $args)
+    {
+        if (count($args) != 1) {
+            $compiler->Error("URIFragment only needs one parameter");
+        }
+
+        return hexec('array_pop', hexec('split', '#', $args[0]));
+    }
+}