From 62b1003a052ff9f22b054a7c23fa2e3c08e63d73 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Wed, 15 Apr 2015 10:49:43 -0700
Subject: [PATCH] handle 0-width surrogates.

---
 lib/widget.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/widget.js b/lib/widget.js
index 40978ff..ad409b7 100644
--- a/lib/widget.js
+++ b/lib/widget.js
@@ -2673,7 +2673,10 @@ main:
       var surrogates = out[i].match(/[\ud800-\udbff][\udc00-\udfff]/g);
       if (surrogates && surrogates.length) {
         for (var j = 0; j < surrogates.length; j++) {
-          if (east_asian_width.char_width(surrogates[j].codePointAt(0)) === 1) {
+          var cwid = east_asian_width.char_width(surrogates[j].codePointAt(0));
+          if (cwid === 0) {
+            out[i] += '  ';
+          } else if (cwid === 1) {
             out[i] += ' ';
           }
         }