From 730f510e2441257a1ea61822c76b2dd779fcb3c8 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 26 Nov 2010 08:57:03 -0700
Subject: [PATCH] RTF Output: Handle non-breakinf spaces correctly. Fixes #7668
 (HTML to RTF (Non Breaking Space) v0.7.29)

---
 src/calibre/ebooks/rtf/rtfml.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/calibre/ebooks/rtf/rtfml.py b/src/calibre/ebooks/rtf/rtfml.py
index 53ba7ecbd8..5aa4979b04 100644
--- a/src/calibre/ebooks/rtf/rtfml.py
+++ b/src/calibre/ebooks/rtf/rtfml.py
@@ -81,7 +81,9 @@ def txt2rtf(text):
     buf = cStringIO.StringIO()
     for x in text:
         val = ord(x)
-        if val <= 127:
+        if val == 160:
+            buf.write('\\~')
+        elif val <= 127:
             buf.write(x)
         else:
             repl = ascii_text(x)