31 lines
684 B
Python
31 lines
684 B
Python
# Copyright (c) Facebook, Inc. and its affiliates.
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#
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# This source code is licensed under the MIT license found in the
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# LICENSE file in the root directory of this source tree.
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from fairseq.data.encoders import register_bpe
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SPACE = chr(32)
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SPACE_ESCAPE = chr(9601)
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@register_bpe("characters")
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class Characters(object):
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def __init__(self, *unused):
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pass
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@staticmethod
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def add_args(parser):
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pass
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@staticmethod
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def encode(x: str) -> str:
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escaped = x.replace(SPACE, SPACE_ESCAPE)
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return SPACE.join(list(escaped))
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@staticmethod
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def decode(x: str) -> str:
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return x.replace(SPACE, "").replace(SPACE_ESCAPE, SPACE)
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