From 96f85b187e28e202ad318d8afa13bc0229aa478f Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 1 Nov 2017 11:16:45 +0530
Subject: [PATCH] Handle request to render zerowidth text more gracefully

---
 kitty/fonts/freetype.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kitty/fonts/freetype.py b/kitty/fonts/freetype.py
index cac904240..45bd7fedf 100644
--- a/kitty/fonts/freetype.py
+++ b/kitty/fonts/freetype.py
@@ -167,6 +167,8 @@ def missing_glyph(num_cells, cell_width, cell_height):
 
 def render_cell(text=' ', bold=False, italic=False):
     num_cells = wcwidth(text[0])
+    if num_cells < 1:
+        return render_cell()
 
     def safe_freetype(func):
         try: