From 4917628f9e94b2ff14019ff6d66735744cf824c5 Mon Sep 17 00:00:00 2001
From: Paul Franklin <pf.98052@gmail.com>
Date: Thu, 1 Sep 2016 19:05:54 -0700
Subject: [PATCH] sort custom filter names with German-umlaut chars correctly

---
 gramps/gen/filters/_filterlist.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gramps/gen/filters/_filterlist.py b/gramps/gen/filters/_filterlist.py
index 5270b508c..34975738e 100644
--- a/gramps/gen/filters/_filterlist.py
+++ b/gramps/gen/filters/_filterlist.py
@@ -36,6 +36,7 @@ import collections
 #-------------------------------------------------------------------------
 from ._filterparser import FilterParser
 from ..plug import BasePluginManager
+from ..const import GRAMPS_LOCALE as glocale
 
 PLUGMAN = BasePluginManager.get_instance()
 #-------------------------------------------------------------------------
@@ -129,7 +130,8 @@ class FilterList:
                 file.write('  <object type="%s">\n' % namespace)
                 filter_list = self.filter_namespaces[namespace]
                 sorted_filters = sorted([(filter.get_name(), filter)
-                                         for filter in filter_list])
+                                         for filter in filter_list],
+                                        key=lambda x: glocale.sort_key(x[0]))
                 for (name, the_filter) in sorted_filters: # enable a diff
                     file.write('    <filter name="%s"' % self.fix(name))
                     file.write(' function="%s"' % the_filter.get_logical_op())