From ba93cc6dfad98d4a20ddff0ed09c7396cd38c0ee Mon Sep 17 00:00:00 2001
From: nightwing <amirjanyan@gmail.com>
Date: Wed, 21 May 2014 20:30:47 +0400
Subject: [PATCH] fix tab detection

---
 lib/ace/ext/whitespace.js | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/lib/ace/ext/whitespace.js b/lib/ace/ext/whitespace.js
index a3c179f3..fdbf7360 100644
--- a/lib/ace/ext/whitespace.js
+++ b/lib/ace/ext/whitespace.js
@@ -46,7 +46,6 @@ exports.$detectIndentation = function(lines, fallback) {
         if (!/^\s*[^*+\-\s]/.test(line))
             continue;
 
-        var tabs = line.match(/^\t*/)[0].length;
         if (line[0] == "\t")
             tabIndents++;
 
@@ -65,9 +64,6 @@ exports.$detectIndentation = function(lines, fallback) {
             line = lines[i++];
     }
     
-    if (!stats.length)
-        return;
-
     function getScore(indent) {
         var score = 0;
         for (var i = indent; i < stats.length; i += indent)
@@ -82,7 +78,7 @@ exports.$detectIndentation = function(lines, fallback) {
     for (var i = 1; i < 12; i++) {
         if (i == 1) {
             spaceIndents = getScore(i);
-            var score = 1;
+            var score = stats.length && 1;
         } else
             var score = getScore(i) / spaceIndents;
 
@@ -99,7 +95,7 @@ exports.$detectIndentation = function(lines, fallback) {
     if (tabIndents > spaceIndents + 1)
         return {ch: "\t", length: tabLength};
 
-    if (spaceIndents + 1 > tabIndents)
+    if (spaceIndents > tabIndents + 1)
         return {ch: " ", length: tabLength};
 };