tag lib for autocomplete

--not added autocomplete yet

ext/autocomplete/main.php

@@ -0,0 +1,33 @@
+<?php
+/*
+ * Name: Autocomplete
+ * Author: Daku <admin@codeanimu.net>
+ * Description: Adds autocomplete to search & tagging.
+ */
+
+class AutoComplete extends Extension {
+	public function onPageRequest(PageRequestEvent $event) {
+		global $page, $database;
+
+		if($event->page_matches("api/internal/autocomplete")) {
+			if(!isset($_GET["s"])) return;
+
+			//$limit = 0;
+			$limitSQL = "";
+			$SQLarr = array("search"=>$_GET["s"]."%");
+			if(isset($_GET["limit"]) && $_GET["limit"] !== 0){
+				$limitSQL = "LIMIT :limit";
+				$SQLarr['limit'] = $_GET["limit"];
+			}
+
+			$res = $database->get_col(
+					"SELECT tag FROM tags WHERE tag LIKE :search AND count > 0 $limitSQL", $SQLarr);
+
+			$page->set_mode("data");
+			$page->set_type("application/json");
+			$page->set_data(json_encode($res));
+		}
+
+		$this->theme->build_autocomplete($page);
+	}
+}