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bda-6-steffo/unimore_bda_6/tokenizer/base.py
2023-02-08 19:46:05 +01:00

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987 B
Python

import tensorflow
class BaseTokenizer:
"""
The base for all tokenizers in this project.
"""
def __repr__(self):
return f"{self.__class__.__qualname__}()"
@staticmethod
def __not_implemented(f):
f.__notimplemented__ = True
return f
def supports_plain(self) -> bool:
return not getattr(self.tokenize_plain, "__notimplemented__", False)
def supports_tensorflow(self) -> bool:
return not getattr(self.tokenize_tensorflow, "__notimplemented__", False)
@__not_implemented
def tokenize_plain(self, text: str) -> list[str]:
"""
Convert a text string into a list of tokens.
"""
raise NotImplementedError()
@__not_implemented
def tokenize_tensorflow(self, text: "tensorflow.Tensor") -> "tensorflow.Tensor":
"""
Convert a `tensorflow.Tensor` string into another `tensorflow.Tensor` space-separated string.
"""
raise NotImplementedError()