From 5fe8a419d26789a71843ca0fa5b1ef93abc48ef6 Mon Sep 17 00:00:00 2001
From: nixzhu <zhuhongxu@gmail.com>
Date: Wed, 20 Jan 2016 13:36:56 +0800
Subject: [PATCH] guard characters.count > index in yep_mentionWordInIndex

---
 Yep/Extensions/String+Yep.swift | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Yep/Extensions/String+Yep.swift b/Yep/Extensions/String+Yep.swift
index 065c72b5..55fe601b 100644
--- a/Yep/Extensions/String+Yep.swift
+++ b/Yep/Extensions/String+Yep.swift
@@ -47,11 +47,13 @@ extension String {
 
     func yep_mentionWordInIndex(index: Int) -> (wordString: String, mentionWordRange: Range<Index>)? {
 
+        println("startIndex: \(startIndex), endIndex: \(endIndex), index: \(index), length: \((self as NSString).length), count: \(self.characters.count)")
+
         guard index > 0 else {
             return nil
         }
 
-        guard (self as NSString).length > index else {
+        guard self.characters.count > index else {
             return nil
         }