From df4b4707a2eedcdf73b6f3604efa8f400c8ce342 Mon Sep 17 00:00:00 2001
From: "Marshall T. Vandegrift" <llasram@gmail.com>
Date: Wed, 25 Feb 2009 00:14:11 -0500
Subject: [PATCH] #1887.  Escape characters which are not allowed to appear in
 attribute values.

---
 src/calibre/ebooks/lit/reader.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/calibre/ebooks/lit/reader.py b/src/calibre/ebooks/lit/reader.py
index 06f5ebdabb..407aedae1f 100644
--- a/src/calibre/ebooks/lit/reader.py
+++ b/src/calibre/ebooks/lit/reader.py
@@ -276,8 +276,11 @@ class UnBinary(object):
                     state = 'get attr'
                 elif count > 0:
                     if not in_censorship:
-                        self.buf.write(c.encode(
-                            'ascii', 'xmlcharrefreplace'))
+                        if c == '"':
+                            c = '&quot;'
+                        elif c == '<':
+                            c = '&lt;'
+                        self.buf.write(c.encode('ascii', 'xmlcharrefreplace'))
                     count -= 1
                 if count == 0:
                     if not in_censorship: