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7934b29 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | # Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# 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.
from abc import ABC, abstractmethod
from typing import List
__all__ = ['TokenizerSpec']
class TokenizerSpec(ABC):
"""
Inherit this class to implement a new tokenizer.
"""
@abstractmethod
def text_to_tokens(self, text):
pass
@abstractmethod
def tokens_to_text(self, tokens):
pass
@abstractmethod
def tokens_to_ids(self, tokens):
pass
@abstractmethod
def ids_to_tokens(self, ids):
pass
@abstractmethod
def text_to_ids(self, text):
pass
@abstractmethod
def ids_to_text(self, ids):
pass
def add_special_tokens(self, special_tokens: List[str]):
raise NotImplementedError("To be implemented")
@property
def name(self):
return type(self).__name__
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