# Copyright 2017 Google Inc.
# 
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import 'util/byte.grm' as b;

lexical_map = StringFile['en/verbalizer/lexical_map.tsv'];

sigma_star = b.kBytes*;

del_null = CDRewrite["__NULL__" : "", "", "", sigma_star];

export LEXICAL_MAP = Optimize[
  CDRewrite[lexical_map, "", "", sigma_star] @ del_null]
;
