From 8cd82c275ae27f4159051bcb0e289ce3f534d6c9 Mon Sep 17 00:00:00 2001
From: Seongjae Lee <seongjae@gmail.com>
Date: Sun, 20 Sep 2015 20:22:13 -0700
Subject: [PATCH] Tokenizer should return an empty array with an empty string

---
 lib/tokenizer.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/tokenizer.js b/lib/tokenizer.js
index 8c55a0bb..19c90acb 100644
--- a/lib/tokenizer.js
+++ b/lib/tokenizer.js
@@ -15,6 +15,6 @@ lunr.tokenizer = function (obj) {
   if (!arguments.length || obj == null || obj == undefined) return []
   if (Array.isArray(obj)) return obj.map(function (t) { return t.toLowerCase() })
 
-  return obj.toString().trim().toLowerCase().split(/[\s\-]+/)
+  var str = obj.toString().trim().toLowerCase()
+  return str.length ? str.split(/[\s\-]+/) : []
 }
-