From 3f98797f21e2207c23c3b71b6aa3e3f75853f3a9 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 14 Jan 2010 18:47:02 -0700
Subject: [PATCH] Fix #4570 (Windows: Error when adding PDF where metadata
 contains illegal path components)

---
 src/calibre/__init__.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/calibre/__init__.py b/src/calibre/__init__.py
index 4eeac6a159..347799de64 100644
--- a/src/calibre/__init__.py
+++ b/src/calibre/__init__.py
@@ -92,6 +92,8 @@ def sanitize_file_name(name, substitute='_', as_unicode=False):
     if as_unicode:
         one = one.decode(filesystem_encoding)
     one = one.replace('..', substitute)
+    if one.endswith('.'):
+        one = one[:-1]+'_'
     return one