From 896929378ec3f28f7b366c4b5f61b9eab3b7fcf4 Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Wed, 12 Nov 2014 12:17:26 +1100
Subject: [PATCH] add util.trimRight method - fixes #147

---
 lib/6to5/generation/buffer.js | 4 ++--
 lib/6to5/util.js              | 4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/6to5/generation/buffer.js b/lib/6to5/generation/buffer.js
index bbee2de4a7..edd526ea4d 100644
--- a/lib/6to5/generation/buffer.js
+++ b/lib/6to5/generation/buffer.js
@@ -11,7 +11,7 @@ function Buffer(position, format) {
 }
 
 Buffer.prototype.get = function () {
-  return this.buf.trimRight();
+  return util.trimRight(this.buf);
 };
 
 Buffer.prototype.getIndent = function () {
@@ -116,7 +116,7 @@ Buffer.prototype.endsWith = function (str) {
 
 Buffer.prototype.isLast = function (cha, trimRight) {
   var buf = this.buf;
-  if (trimRight) buf = buf.trimRight();
+  if (trimRight) buf = util.trimRight(buf);
 
   var chars = [].concat(cha);
   return _.contains(chars, _.last(buf));
diff --git a/lib/6to5/util.js b/lib/6to5/util.js
index 499ef4d234..3a2ae95e33 100644
--- a/lib/6to5/util.js
+++ b/lib/6to5/util.js
@@ -25,6 +25,10 @@ exports.resolve = function (loc) {
   }
 };
 
+exports.trimRight = function (str) {
+  return str.replace(/[\n\s]+$/g, "");
+};
+
 exports.list = function (val) {
   return val ? val.split(",") : [];
 };