postcodes: add support for optional spaces

[nominatim.git] / nominatim / tokenizer / sanitizers / strip_brace_terms.py

diff --git a/nominatim/tokenizer/sanitizers/strip_brace_terms.py b/nominatim/tokenizer/sanitizers/strip_brace_terms.py
index 4423d3058ce1c20d6e001ee2979b875fa9e8a6c3..f8cdd035f5ddf483f0f1c318b069b8d817320f66 100644 (file)
--- a/nominatim/tokenizer/sanitizers/strip_brace_terms.py
+++ b/nominatim/tokenizer/sanitizers/strip_brace_terms.py
@@ -1,22 +1,29 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# This file is part of Nominatim. (https://nominatim.org)
+#
+# Copyright (C) 2022 by the Nominatim developer community.
+# For a full list of authors see the git log.
 """
-Sanitizer handling names with addendums in braces.
+This sanitizer creates additional name variants for names that have
+addendums in brackets (e.g. "Halle (Saale)"). The additional variant contains
+only the main name part with the bracket part removed.
 """
 
 def create(_):
     """ Create a name processing function that creates additional name variants
-        when a name has an addendum in brackets (e.g. "Halle (Saale)"). The
-        additional variant only contains the main name without the bracket part.
+        for bracket addendums.
     """
     def _process(obj):
         """ Add variants for names that have a bracket extension.
         """
-        new_names = []
         if obj.names:
+            new_names = []
             for name in (n for n in obj.names if '(' in n.name):
                 new_name = name.name.split('(')[0].strip()
                 if new_name:
                     new_names.append(name.clone(name=new_name))
 
-        obj.names.extend(new_names)
+            obj.names.extend(new_names)
 
     return _process