diff --git a/src/gui/configure.py b/src/gui/configure.py
index 22079ddc4..d825089d4 100644
--- a/src/gui/configure.py
+++ b/src/gui/configure.py
@@ -219,6 +219,27 @@ class ConfigureDialog(ManagedWindow.ManagedWindow):
"""
self.__config.set(constant, unicode(obj.get_text()))
+ def update_markup_entry(self, obj, constant):
+ """
+ :param obj: an object with get_text method
+ :param constant: the config setting to which the text value must be
+ saved
+ """
+ try:
+ obj.get_text() % 'test_markup'
+ except TypeError:
+ print("WARNING: ignoring invalid value for '%s'" % constant)
+ ErrorDialog(_("Invalid or incomplete format definition."),
+ obj.get_text())
+ obj.set_text('%s')
+ except ValueError:
+ print("WARNING: ignoring invalid value for '%s'" % constant)
+ ErrorDialog(_("Invalid or incomplete format definition."),
+ obj.get_text())
+ obj.set_text('%s')
+
+ self.__config.set(constant, unicode(obj.get_text()))
+
def update_color(self, obj, constant, color_hex_label):
color = obj.get_color()
hexval = "#%02x%02x%02x" % (color.red/256,
@@ -1034,7 +1055,7 @@ class GrampsPreferences(ConfigureDialog):
6, 'behavior.avg-generation-gap', self.update_int_entry)
self.add_pos_int_entry(table,
_('Markup for invalid date format'),
- 7, 'preferences.invalid-date-format', self.update_entry)
+ 7, 'preferences.invalid-date-format', self.update_markup_entry)
return _('Dates'), table