From 5f5ac70660bf25e9dd508b13058e501268036fdb Mon Sep 17 00:00:00 2001
From: Jack Feser <jack.feser@gmail.com>
Date: Thu, 4 Apr 2013 21:32:34 -0500
Subject: [PATCH] Strip non color related ANSI escape sequences from notebook
 output.

This fixes issue #2385.
---
 IPython/frontend/html/notebook/static/js/utils.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/IPython/frontend/html/notebook/static/js/utils.js b/IPython/frontend/html/notebook/static/js/utils.js
index 559f4ea2e..a2b364b82 100644
--- a/IPython/frontend/html/notebook/static/js/utils.js
+++ b/IPython/frontend/html/notebook/static/js/utils.js
@@ -174,6 +174,12 @@ IPython.utils = (function (IPython) {
         var cmds = [];
         var opener = "";
         var closer = "";
+
+        // Strip all ANSI codes that are not color related.  Matches
+        // all ANSI codes that do not end with "m".
+        var ignored_re = /(?=(\033\[[\d;=]*[a-ln-zA-Z]{1}))\1(?!m)/g;
+        txt = txt.replace(ignored_re, "");
+
         while (re.test(txt)) {
             var cmds = txt.match(re)[1].split(";");
             closer = opened?"</span>":"";