From 6482914216c136df79ef750fc46d51afccf4ec48 Mon Sep 17 00:00:00 2001
From: Charles Haley <>
Date: Wed, 9 Mar 2011 08:59:10 +0000
Subject: [PATCH] Added the '_' to the non-translated values to prevent
 possible clashes with translations

---
 src/calibre/library/caches.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/calibre/library/caches.py b/src/calibre/library/caches.py
index c77b03c112..97ddaeb51a 100644
--- a/src/calibre/library/caches.py
+++ b/src/calibre/library/caches.py
@@ -551,20 +551,20 @@ class ResultCache(SearchQueryParser): # {{{
             val = force_to_bool(item[loc])
             if not bools_are_tristate:
                 if val is None or not val: # item is None or set to false
-                    if query in [_('no'), _('unchecked'), 'no', 'false']:
+                    if query in [_('no'), _('unchecked'), '_no', 'false']:
                         matches.add(item[0])
                 else: # item is explicitly set to true
-                    if query in [_('yes'), _('checked'), 'yes', 'true']:
+                    if query in [_('yes'), _('checked'), '_yes', 'true']:
                         matches.add(item[0])
             else:
                 if val is None:
-                    if query in [_('empty'), _('blank'), 'empty', 'false']:
+                    if query in [_('empty'), _('blank'), '_empty', 'false']:
                         matches.add(item[0])
                 elif not val: # is not None and false
-                    if query in [_('no'), _('unchecked'), 'no', 'true']:
+                    if query in [_('no'), _('unchecked'), '_no', 'true']:
                         matches.add(item[0])
                 else: # item is not None and true
-                    if query in [_('yes'), _('checked'), 'yes', 'true']:
+                    if query in [_('yes'), _('checked'), '_yes', 'true']:
                         matches.add(item[0])
         return matches