X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/62828fc5c11a1c332e18206b181b84928980319b..f3c4196c758a7720aefc26a7043bf1c6553028e2:/nominatim/tokenizer/icu_variants.py

diff --git a/nominatim/tokenizer/icu_variants.py b/nominatim/tokenizer/icu_variants.py
index e4348eab..9ebe3684 100644
--- a/nominatim/tokenizer/icu_variants.py
+++ b/nominatim/tokenizer/icu_variants.py
@@ -4,51 +4,28 @@ Data structures for saving variant expansions for ICU tokenizer.
 from collections import namedtuple
 import json
 
-from nominatim.errors import UsageError
-
 _ICU_VARIANT_PORPERTY_FIELDS = ['lang']
 
-def _get_strtuple_prop(rules, field):
-    """ Return the given field of the rules dictionary as a list.
-
-        If the field is not defined or empty, returns None. If the field is
-        a singe string, it is converted into a tuple with a single element.
-        If the field is a list of strings, return as a string tuple.
-        Raise a usage error in all other cases.
-    """
-    value = rules.get(field)
-
-    if not value:
-        return None
-
-    if isinstance(value, str):
-        return (value,)
 
-    if not isinstance(value, list) or any(not isinstance(x, str) for x in value):
-        raise UsageError("YAML variant property '{}' should be a list.".format(field))
-
-    return tuple(value)
-
-
-class ICUVariantProperties(namedtuple('_ICUVariantProperties', _ICU_VARIANT_PORPERTY_FIELDS,
-                                      defaults=(None, )*len(_ICU_VARIANT_PORPERTY_FIELDS))):
+class ICUVariantProperties(namedtuple('_ICUVariantProperties', _ICU_VARIANT_PORPERTY_FIELDS)):
     """ Data container for saving properties that describe when a variant
         should be applied.
 
-        Porperty instances are hashable.
+        Property instances are hashable.
     """
     @classmethod
-    def from_rules(cls, rules):
+    def from_rules(cls, _):
         """ Create a new property type from a generic dictionary.
 
             The function only takes into account the properties that are
             understood presently and ignores all others.
         """
-        return cls(lang=_get_strtuple_prop(rules, 'lang'))
+        return cls(lang=None)
 
 
 ICUVariant = namedtuple('ICUVariant', ['source', 'replacement', 'properties'])
 
+
 def pickle_variant_set(variants):
     """ Serializes an iterable of variant rules to a string.
     """
@@ -74,7 +51,7 @@ def unpickle_variant_set(variant_string):
     """
     data = json.loads(variant_string)
 
-    properties = {int(k): ICUVariantProperties(**v) for k, v in data['properties'].items()}
-    print(properties)
+    properties = {int(k): ICUVariantProperties.from_rules(v)
+                  for k, v in data['properties'].items()}
 
     return set((ICUVariant(src, repl, properties[pid]) for src, repl, pid in data['variants']))