# 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 'ru/verbalizer/float.grm' as f;
import 'ru/verbalizer/lexical_map.grm' as l;
import 'ru/verbalizer/numbers.grm' as n;

float = f.FLOAT;
card = n.CARDINAL_NUMBERS;
number = card | float;

plus = "+" : " @@ARITHMETIC_PLUS@@ ";
times = "*" : " @@ARITHMETIC_TIMES@@ ";
minus = "-" : " @@ARITHMETIC_MINUS@@ ";
division = "/" : " @@ARITHMETIC_DIVISION@@ ";

operator = plus | times | minus | division;

percent = "%" : " @@PERCENT@@";

export ARITHMETIC =
  Optimize[((number operator number) | (number percent)) @ l.LEXICAL_MAP]
;
