



"""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


_lowercase			:			str										=						logging.get_logger(__name__)


_lowercase			:			List[str]										=						{
    "vocab_file": "vocab.json",
    "merges_file": "merges.txt",
    "tokenizer_config_file": "tokenizer_config.json",
}

_lowercase			:			int										=						{
    "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"
        )
    },
}

_lowercase			:			str										=						{"facebook/blenderbot_small-90M": 5_1_2}






def 					snake_case__       (		__lowerCamelCase    :   str     ):
			"""simple docstring"""
			lowerCamelCase__		:		int		     =set()
			lowerCamelCase__		:		Optional[int]		     =word[0]
			for char in word[1:]:
						pairs.add((prev_char, char)     )
						lowerCamelCase__		:		int		     =char

			lowerCamelCase__		:		int		     =set(__lowerCamelCase     )
			return pairs

class 	__SCREAMING_SNAKE_CASE     (				lowerCAmelCase_       ):


					'''simple docstring'''





					_a             =							VOCAB_FILES_NAMES
					_a             =							PRETRAINED_VOCAB_FILES_MAP
					_a             =							PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
					_a             =							['input_ids', 'attention_mask']



					def __init__(	self							:  List[Any],  lowerCamelCase							:  Dict,  lowerCamelCase							:  Optional[int],  lowerCamelCase							:  Union[str, Any]="__start__",  lowerCamelCase							:  List[str]="__end__",  lowerCamelCase							:  Optional[Any]="__unk__",  lowerCamelCase							:  Union[str, Any]="__null__",  **lowerCamelCase							:  Tuple,  )-> int:
								super().__init__(unk_token=lowerCamelCase,  bos_token=lowerCamelCase,  eos_token=lowerCamelCase,  pad_token=lowerCamelCase,  **lowerCamelCase					)

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



					@property
					def 		snake_case	(	self							:  List[Any]					)-> int:
								return len(self.encoder					)



					def 		snake_case	(	self							:  Optional[int]					)-> Dict:
								return dict(self.encoder,  **self.added_tokens_encoder					)



					def 		snake_case	(	self							:  Any,  lowerCamelCase							:  str					)-> str:
								if token in self.cache:
											return self.cache[token]
								lowerCamelCase__		:		List[str]		     =re.sub('''([.,!?()])''',  r''' \1''',  lowerCamelCase					)
								lowerCamelCase__		:		Union[str, Any]		     =re.sub('''(\')''',  r''' \1 ''',  lowerCamelCase					)
								lowerCamelCase__		:		Any		     =re.sub(r'''\s{2,}''',  ''' ''',  lowerCamelCase					)
								if "\n" in token:
											lowerCamelCase__		:		str		     =token.replace('''\n''',  ''' __newln__'''					)

								lowerCamelCase__		:		List[str]		     =token.split(''' '''					)
								lowerCamelCase__		:		Any		     =[]
								for token in tokens:
											if not len(lowerCamelCase					):
														continue

											lowerCamelCase__		:		Union[str, Any]		     =token.lower()
											lowerCamelCase__		:		Optional[int]		     =tuple(lowerCamelCase					)
											lowerCamelCase__		:		List[str]		     =tuple(list(word[:-1]					) + [word[-1] + '''</w>''']					)
											lowerCamelCase__		:		str		     =get_pairs(lowerCamelCase					)

											if not pairs:
														words.append(lowerCamelCase					)
														continue

											while True:
														lowerCamelCase__		:		Optional[int]		     =min(lowerCamelCase,  key=lambda lowerCamelCase					: self.bpe_ranks.get(lowerCamelCase,  float('''inf'''					)					)					)
														if bigram not in self.bpe_ranks:
																	break
														lowerCamelCase__		:		List[str]		     =bigram
														lowerCamelCase__		:		int		     =[]
														lowerCamelCase__		:		Optional[int]		     =0

														while i < len(lowerCamelCase					):
																	try:
																				lowerCamelCase__		:		Union[str, Any]		     =word.index(lowerCamelCase,  lowerCamelCase					)
																				new_word.extend(word[i:j]					)
																				lowerCamelCase__		:		List[str]		     =j
																	except ValueError:
																				new_word.extend(word[i:]					)
																				break

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

											lowerCamelCase__		:		Optional[Any]		     =word
											words.append(lowerCamelCase					)
								return " ".join(lowerCamelCase					)



					def 		snake_case	(	self							:  Any,  lowerCamelCase							:  str					)-> List[str]:
								lowerCamelCase__		:		Any		     =[]

								lowerCamelCase__		:		Any		     =re.findall(r'''\S+\n?''',  lowerCamelCase					)

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



					def 		snake_case	(	self							:  List[str],  lowerCamelCase							:  str					)-> int:
								lowerCamelCase__		:		Tuple		     =token.lower()
								return self.encoder.get(lowerCamelCase,  self.encoder.get(self.unk_token					)					)



					def 		snake_case	(	self							:  Tuple,  lowerCamelCase							:  int					)-> str:
								return self.decoder.get(lowerCamelCase,  self.unk_token					)



					def 		snake_case	(	self							:  Optional[int],  lowerCamelCase							:  List[str]					)-> str:
								lowerCamelCase__		:		Tuple		     =''' '''.join(lowerCamelCase					).replace('''@@ ''',  ''''''					).strip()
								return out_string




					def 		snake_case	(	self							:  Tuple,  lowerCamelCase							:  str,  lowerCamelCase							:  Optional[str] = None					)-> Tuple[str]:
								if not os.path.isdir(lowerCamelCase					):
											logger.error(F'''Vocabulary path ({save_directory}) should be a directory'''					)
											return
								lowerCamelCase__		:		List[str]		     =os.path.join(
								    lowerCamelCase,  (filename_prefix + '''-''' if filename_prefix else '''''') + VOCAB_FILES_NAMES['''vocab_file''']					)
								lowerCamelCase__		:		Optional[Any]		     =os.path.join(
								    lowerCamelCase,  (filename_prefix + '''-''' if filename_prefix else '''''') + VOCAB_FILES_NAMES['''merges_file''']					)

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

								lowerCamelCase__		:		str		     =0
								with open(lowerCamelCase,  '''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 lowerCamelCase					: 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__		:		Optional[int]		     =token_index
														writer.write(''' '''.join(lowerCamelCase					) + '''\n'''					)
														index += 1

								return vocab_file, merge_file









"""simple docstring"""






from ..utils import DummyObject, requires_backends

class 	__SCREAMING_SNAKE_CASE     (				metaclass=lowerCAmelCase_       ):


					'''simple docstring'''





					_a             =							['torch', 'torchsde']



					def __init__(	self							:  Union[str, Any],  *lowerCamelCase							:  str,  **lowerCamelCase							:  int					)-> Tuple:
								requires_backends(self,  ['''torch''', '''torchsde''']					)



					@classmethod
					def 		snake_case	(	cls							:  List[str],  *lowerCamelCase							:  Optional[Any],  **lowerCamelCase							:  Dict					)-> str:
								requires_backends(cls,  ['''torch''', '''torchsde''']					)




					@classmethod
					def 		snake_case	(	cls							:  Tuple,  *lowerCamelCase							:  Dict,  **lowerCamelCase							:  Tuple					)-> List[str]:
								requires_backends(cls,  ['''torch''', '''torchsde''']					)




