


'''simple docstring'''







import json
import os
from typing import Dict, List, Optional, Tuple

import regex as re

from ...tokenization_utils import PreTrainedTokenizer
from ...utils import logging


lowerCAmelCase    :     Optional[int]					=						logging.get_logger(__name__)


lowerCAmelCase    :     str					=						{
    """vocab_file""": """vocab.json""",
    """merges_file""": """merges.txt""",
    """tokenizer_config_file""": """tokenizer_config.json""",
}

lowerCAmelCase    :     List[str]					=						{
    """vocab_file""": {
        """facebook/blenderbot_small-90M""": """https://huggingface.co/facebook/blenderbot_small-90M/resolve/main/vocab.json"""
    },
    """merges_file""": {
        """facebook/blenderbot_small-90M""": """https://huggingface.co/facebook/blenderbot_small-90M/resolve/main/merges.txt"""
    },
    """tokenizer_config_file""": {
        """facebook/blenderbot_small-90M""": (
            """https://huggingface.co/facebook/blenderbot_small-90M/resolve/main/tokenizer_config.json"""
        )
    },
}

lowerCAmelCase    :     Optional[int]					=						{"""facebook/blenderbot_small-90M""": 5_12}






def 			lowercase				(_A					)     ->   Optional[Any]:







       """simple docstring"""







       _lowerCAmelCase    :							Any   			=       set()
       _lowerCAmelCase    :							str   			=       word[0]
       for char in word[1:]:
              pairs.add((prev_char, char)					)
              _lowerCAmelCase    :							Dict   			=       char

       _lowerCAmelCase    :							List[str]   			=       set(_A					)
       return pairs
class 	UpperCamelCase__					( lowercase__	):



     """simple docstring"""






     __magic_name__    			=    VOCAB_FILES_NAMES
     __magic_name__    			=    PRETRAINED_VOCAB_FILES_MAP
     __magic_name__    			=    PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
     __magic_name__    			=    ["input_ids", "attention_mask"]







     def __init__( self      ,	snake_case__      ,	snake_case__      ,	snake_case__="__start__"      ,	snake_case__="__end__"      ,	snake_case__="__unk__"      ,	snake_case__="__null__"      ,	**snake_case__      ,	):

            '''simple docstring'''

            super().__init__(unk_token=UpperCAmelCase__      ,	bos_token=UpperCAmelCase__      ,	eos_token=UpperCAmelCase__      ,	pad_token=UpperCAmelCase__      ,	**UpperCAmelCase__   )

            with open(UpperCAmelCase__      ,	encoding='utf-8'   ) as vocab_handle:
                   _lowerCAmelCase    :							Tuple   			=       json.load(UpperCAmelCase__   )
            _lowerCAmelCase    :							Optional[int]   			=       {v: k for k, v in self.encoder.items()}
            with open(UpperCAmelCase__      ,	encoding='utf-8'   ) as merges_handle:
                   _lowerCAmelCase    :							Optional[Any]   			=       merges_handle.read().split('\n'   )[1:-1]
            _lowerCAmelCase    :							Union[str, Any]   			=       [tuple(merge.split()   ) for merge in merges]
            _lowerCAmelCase    :							Tuple   			=       dict(zip(UpperCAmelCase__      ,	range(len(UpperCAmelCase__   )   )   )   )
            _lowerCAmelCase    :							Dict   			=       {}







     @property
     def a	( self   ):

            '''simple docstring'''

            return len(self.encoder   )







     def a	( self   ):

            '''simple docstring'''

            return dict(self.encoder      ,	**self.added_tokens_encoder   )







     def a	( self      ,	snake_case__   ):

            '''simple docstring'''

            if token in self.cache:
                   return self.cache[token]
            _lowerCAmelCase    :							Union[str, Any]   			=       re.sub('([.,!?()])'      ,	R' \1'      ,	UpperCAmelCase__   )
            _lowerCAmelCase    :							List[Any]   			=       re.sub('(\')'      ,	R' \1 '      ,	UpperCAmelCase__   )
            _lowerCAmelCase    :							Optional[int]   			=       re.sub(R'\s{2,}'      ,	' '      ,	UpperCAmelCase__   )
            if "\n" in token:
                   _lowerCAmelCase    :							Tuple   			=       token.replace('\n'      ,	' __newln__'   )

            _lowerCAmelCase    :							Tuple   			=       token.split(' '   )
            _lowerCAmelCase    :							List[Any]   			=       []
            for token in tokens:
                   if not len(UpperCAmelCase__   ):
                          continue

                   _lowerCAmelCase    :							Optional[Any]   			=       token.lower()
                   _lowerCAmelCase    :							List[Any]   			=       tuple(UpperCAmelCase__   )
                   _lowerCAmelCase    :							Any   			=       tuple(list(word[:-1]   ) + [word[-1] + '</w>']   )
                   _lowerCAmelCase    :							List[str]   			=       get_pairs(UpperCAmelCase__   )

                   if not pairs:
                          words.append(UpperCAmelCase__   )
                          continue

                   while True:
                          _lowerCAmelCase    :							Optional[int]   			=       min(UpperCAmelCase__      ,	key=lambda snake_case__   : self.bpe_ranks.get(UpperCAmelCase__      ,	float('inf'   )   )   )
                          if bigram not in self.bpe_ranks:
                                 break
                          _lowerCAmelCase    :							Dict   			=       bigram
                          _lowerCAmelCase    :							Union[str, Any]   			=       []
                          _lowerCAmelCase    :							Tuple   			=       0

                          while i < len(UpperCAmelCase__   ):
                                 try:
                                        _lowerCAmelCase    :							Any   			=       word.index(UpperCAmelCase__      ,	UpperCAmelCase__   )
                                        new_word.extend(word[i:j]   )
                                        _lowerCAmelCase    :							Any   			=       j
                                 except ValueError:
                                        new_word.extend(word[i:]   )
                                        break

                                 if word[i] == first and i < len(UpperCAmelCase__   ) - 1 and word[i + 1] == second:
                                        new_word.append(first + second   )
                                        i += 2
                                 else:
                                        new_word.append(word[i]   )
                                        i += 1
                          _lowerCAmelCase    :							Tuple   			=       tuple(UpperCAmelCase__   )
                          _lowerCAmelCase    :							List[str]   			=       new_word
                          if len(UpperCAmelCase__   ) == 1:
                                 break
                          else:
                                 _lowerCAmelCase    :							int   			=       get_pairs(UpperCAmelCase__   )
                   _lowerCAmelCase    :							Tuple   			=       '''@@ '''.join(UpperCAmelCase__   )
                   _lowerCAmelCase    :							List[Any]   			=       word[:-4]

                   _lowerCAmelCase    :							Optional[int]   			=       word
                   words.append(UpperCAmelCase__   )
            return " ".join(UpperCAmelCase__   )







     def a	( self      ,	snake_case__   ):

            '''simple docstring'''

            _lowerCAmelCase    :							Union[str, Any]   			=       []

            _lowerCAmelCase    :							Union[str, Any]   			=       re.findall(R'\S+\n?'      ,	UpperCAmelCase__   )

            for token in words:
                   split_tokens.extend(list(self.bpe(UpperCAmelCase__   ).split(' '   )   )   )
            return split_tokens







     def a	( self      ,	snake_case__   ):

            '''simple docstring'''

            _lowerCAmelCase    :							List[Any]   			=       token.lower()
            return self.encoder.get(UpperCAmelCase__      ,	self.encoder.get(self.unk_token   )   )







     def a	( self      ,	snake_case__   ):

            '''simple docstring'''

            return self.decoder.get(UpperCAmelCase__      ,	self.unk_token   )







     def a	( self      ,	snake_case__   ):

            '''simple docstring'''

            _lowerCAmelCase    :							Dict   			=       ''' '''.join(UpperCAmelCase__   ).replace('@@ '      ,	''   ).strip()
            return out_string







     def a	( self      ,	snake_case__      ,	snake_case__ = None   ):

            '''simple docstring'''

            if not os.path.isdir(UpperCAmelCase__   ):
                   logger.error(F'Vocabulary path ({save_directory}) should be a directory'   )
                   return
            _lowerCAmelCase    :							Tuple   			=       os.path.join(
                UpperCAmelCase__      ,	(filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab_file']   )
            _lowerCAmelCase    :							str   			=       os.path.join(
                UpperCAmelCase__      ,	(filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['merges_file']   )

            with open(UpperCAmelCase__      ,	'w'      ,	encoding='utf-8'   ) as f:
                   f.write(json.dumps(self.encoder      ,	indent=2      ,	sort_keys=UpperCAmelCase__      ,	ensure_ascii=UpperCAmelCase__   ) + '\n'   )

            _lowerCAmelCase    :							Optional[int]   			=       0
            with open(UpperCAmelCase__      ,	'w'      ,	encoding='utf-8'   ) as writer:
                   writer.write('#version: 0.2\n'   )
                   for bpe_tokens, token_index in sorted(self.bpe_ranks.items()      ,	key=lambda snake_case__   : kv[1]   ):
                          if index != token_index:
                                 logger.warning(
                                     F'Saving vocabulary to {merge_file}: BPE merge indices are not consecutive.'
                                     ' Please check that the tokenizer is not corrupted!'   )
                                 _lowerCAmelCase    :							List[Any]   			=       token_index
                          writer.write(' '.join(UpperCAmelCase__   ) + '\n'   )
                          index += 1

            return vocab_file, merge_file





'''simple docstring'''







import pytest

import datasets


# Import fixture modules as plugins
lowerCAmelCase    :     List[str]					=						["""tests.fixtures.files""", """tests.fixtures.hub""", """tests.fixtures.fsspec"""]






def 			lowercase				(_A   ,						_A					):







       """simple docstring"""







       for item in items:
              if any(marker in item.keywords for marker in ['integration', 'unit']					):
                     continue
              item.add_marker(pytest.mark.unit					)






def 			lowercase				(_A					):







       """simple docstring"""







       config.addinivalue_line('markers'   ,						'torchaudio_latest: mark test to run with torchaudio>=0.12'					)






@pytest.fixture(autouse=_A					)
def 			lowercase				(_A   ,						_A					):







       """simple docstring"""







       _lowerCAmelCase    :							str   			=       tmp_path_factory.getbasetemp() / 'cache'
       _lowerCAmelCase    :							Dict   			=       test_hf_cache_home / 'datasets'
       _lowerCAmelCase    :							List[Any]   			=       test_hf_cache_home / 'metrics'
       _lowerCAmelCase    :							List[Any]   			=       test_hf_cache_home / 'modules'
       monkeypatch.setattr('datasets.config.HF_DATASETS_CACHE'   ,						str(_A					)					)
       monkeypatch.setattr('datasets.config.HF_METRICS_CACHE'   ,						str(_A					)					)
       monkeypatch.setattr('datasets.config.HF_MODULES_CACHE'   ,						str(_A					)					)
       _lowerCAmelCase    :							Dict   			=       test_hf_datasets_cache / 'downloads'
       monkeypatch.setattr('datasets.config.DOWNLOADED_DATASETS_PATH'   ,						str(_A					)					)
       _lowerCAmelCase    :							Union[str, Any]   			=       test_hf_datasets_cache / 'downloads' / 'extracted'
       monkeypatch.setattr('datasets.config.EXTRACTED_DATASETS_PATH'   ,						str(_A					)					)






@pytest.fixture(autouse=_A   ,						scope='session'					)
def 			lowercase				():







       """simple docstring"""







       datasets.disable_progress_bar()






@pytest.fixture(autouse=_A					)
def 			lowercase				(_A					):







       """simple docstring"""







       monkeypatch.setattr('datasets.config.HF_UPDATE_DOWNLOAD_COUNTS'   ,						_A					)






@pytest.fixture
def 			lowercase				(_A					):







       """simple docstring"""







       monkeypatch.setattr('sqlalchemy.util.deprecations.SILENCE_UBER_WARNING'   ,						_A					)

