From b29dc7c49ed7f532d09f1186e93c7d8a7a5efd9a Mon Sep 17 00:00:00 2001
From: nightwing <amirjanyan@gmail.com>
Date: Thu, 21 Feb 2013 10:51:54 +0400
Subject: [PATCH] fix undefined errors when there is no tabstop cell

---
 lib/ace/elastic_tabstops_lite.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/ace/elastic_tabstops_lite.js b/lib/ace/elastic_tabstops_lite.js
index efbe7882..c2ed9285 100644
--- a/lib/ace/elastic_tabstops_lite.js
+++ b/lib/ace/elastic_tabstops_lite.js
@@ -150,6 +150,10 @@ var ElasticTabstopsLite = function(editor) {
 
         for (var c = 0, l = columnInfo.length; c < l; c++) {
             var column = columnInfo[c];
+            if (!column.push) {
+                console.error(column)
+                continue
+            }
             // add an extra None to the end so that the end of the column automatically
             // finishes a block
             column.push(NaN);
@@ -248,6 +252,8 @@ var ElasticTabstopsLite = function(editor) {
 
     // the is a (naive) Python port--but works for these purposes
     this.$izip_longest = function(iterables) {
+        if (!iterables[0])
+            return console.error(iterables);
         var longest = iterables[0].length;
         var iterablesLength = iterables.length;