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Return set of symbol pairs in a word.
Word is represented as tuple of symbols (symbols being variable-length strings).
r N)setadd)wordpairs prev_charchars h/var/www/auris/envauris/lib/python3.13/site-packages/transformers/models/phobert/tokenization_phobert.py get_pairsr # sH
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Construct a PhoBERT tokenizer. Based on Byte-Pair-Encoding.
This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should refer to
this superclass for more information regarding those methods.
Args:
vocab_file (`str`):
Path to the vocabulary file.
merges_file (`str`):
Path to the merges file.
bos_token (`st`, *optional*, defaults to `""`):
The beginning of sequence token that was used during pretraining. Can be used a sequence classifier token.
When building a sequence using special tokens, this is not the token that is used for the beginning of
sequence. The token used is the `cls_token`.
eos_token (`str`, *optional*, defaults to `""`):
The end of sequence token.
When building a sequence using special tokens, this is not the token that is used for the end of sequence.
The token used is the `sep_token`.
sep_token (`str`, *optional*, defaults to `""`):
The separator token, which is used when building a sequence from multiple sequences, e.g. two sequences for
sequence classification or for a text and a question for question answering. It is also used as the last
token of a sequence built with special tokens.
cls_token (`str`, *optional*, defaults to `""`):
The classifier token which is used when doing sequence classification (classification of the whole sequence
instead of per-token classification). It is the first token of the sequence when built with special tokens.
unk_token (`str`, *optional*, defaults to `""`):
The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this
token instead.
pad_token (`str`, *optional*, defaults to `""`):
The token used for padding, for example when batching sequences of different lengths.
mask_token (`str`, *optional*, defaults to `""`):
The token used for masking values. This is the token used when training this model with masked language
modeling. This is the token which the model will try to predict.
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Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
adding special tokens. A PhoBERT sequence has the following format:
- single sequence: ` X `
- pair of sequences: ` A B `
Args:
token_ids_0 (`List[int]`):
List of IDs to which the special tokens will be added.
token_ids_1 (`List[int]`, *optional*):
Optional second list of IDs for sequence pairs.
Returns:
`List[int]`: List of [input IDs](../glossary#input-ids) with the appropriate special tokens.
) cls_token_id sep_token_id)r: rC rD clsseps r build_inputs_with_special_tokens1PhobertTokenizer.build_inputs_with_special_tokens se ( %%&48I8I7JJ J ! ! 3&,{:S@@r already_has_special_tokensc > U( a [ TU ] XSS9$ Uc S/S/[ U5 - - S/- $ S/S/[ U5 - - SS/- S/[ U5 - - S/- $ )ad
Retrieve sequence ids from a token list that has no special tokens added. This method is called when adding
special tokens using the tokenizer `prepare_for_model` method.
Args:
token_ids_0 (`List[int]`):
List of IDs.
token_ids_1 (`List[int]`, *optional*):
Optional second list of IDs for sequence pairs.
already_has_special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not the token list is already formatted with special tokens for the model.
Returns:
`List[int]`: A list of integers in the range [0, 1]: 1 for a special token, 0 for a sequence token.
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Create a mask from the two sequences passed to be used in a sequence-pair classification task. PhoBERT does not
make use of token type ids, therefore a list of zeros is returned.
Args:
token_ids_0 (`List[int]`):
List of IDs.
token_ids_1 (`List[int]`, *optional*):
Optional second list of IDs for sequence pairs.
Returns:
`List[int]`: List of zeros.
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9d+E TXXe_%:%:3%? @ A r c ~ U R R XR R U R 5 5 $ )z0Converts a token (str) in an id using the vocab.)r) r` r# )r: ro s r _convert_token_to_id%PhobertTokenizer._convert_token_to_id s* || ||'7'7'GHHr c L U R R XR 5 $ )z=Converts an index (integer) in a token (str) using the vocab.)r- r` r# )r: rj s r _convert_id_to_token%PhobertTokenizer._convert_id_to_token! s || ~~66r c d SR U5 R SS5 R 5 nU$ )z:Converts a sequence of tokens (string) in a single string.ry rf )rn replacestrip)r: tokens
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