





"""simple docstring"""
from __future__ import annotations



def      __lowerCamelCase   (							a_     :		Any ,   a_     :		Optional[Any] = None ,   a_     :		Dict = None							)			->      Dict:
      if start is None:
            __SCREAMING_SNAKE_CASE   :Tuple						=  0

      if end is None:
            __SCREAMING_SNAKE_CASE   :Tuple						=  len(_UpperCAmelCase							) - 1

      if start >= end:
            return

      __SCREAMING_SNAKE_CASE   :List[Any]						=  (start + end) // 2

      slowsort(_UpperCAmelCase ,   _UpperCAmelCase ,   _UpperCAmelCase							)
      slowsort(_UpperCAmelCase ,   mid + 1 ,   _UpperCAmelCase							)

      if sequence[end] < sequence[mid]:
            __SCREAMING_SNAKE_CASE   :int						=  sequence[mid], sequence[end]

      slowsort(_UpperCAmelCase ,   _UpperCAmelCase ,   end - 1							)


if __name__ == "__main__":
  from doctest import testmod

  testmod()


import json
import os
from functools import lru_cache
from typing import List, Optional, Tuple

import regex as re

from ...tokenization_utils import AddedToken, PreTrainedTokenizer
from ...utils import logging


lowerCAmelCase							:  Any   	=						logging.get_logger(__name__)


lowerCAmelCase							:  Tuple   	=						{"""vocab_file""": """vocab.json""", """merges_file""": """merges.txt"""}

lowerCAmelCase							:  Optional[int]   	=						{
    """vocab_file""": {
        """allenai/longformer-base-4096""": """https://huggingface.co/allenai/longformer-base-4096/resolve/main/vocab.json""",
        """allenai/longformer-large-4096""": (
            """https://huggingface.co/allenai/longformer-large-4096/resolve/main/vocab.json"""
        ),
        """allenai/longformer-large-4096-finetuned-triviaqa""": (
            """https://huggingface.co/allenai/longformer-large-4096-finetuned-triviaqa/resolve/main/vocab.json"""
        ),
        """allenai/longformer-base-4096-extra.pos.embd.only""": (
            """https://huggingface.co/allenai/longformer-base-4096-extra.pos.embd.only/resolve/main/vocab.json"""
        ),
        """allenai/longformer-large-4096-extra.pos.embd.only""": (
            """https://huggingface.co/allenai/longformer-large-4096-extra.pos.embd.only/resolve/main/vocab.json"""
        ),
    },
    """merges_file""": {
        """allenai/longformer-base-4096""": """https://huggingface.co/allenai/longformer-base-4096/resolve/main/merges.txt""",
        """allenai/longformer-large-4096""": (
            """https://huggingface.co/allenai/longformer-large-4096/resolve/main/merges.txt"""
        ),
        """allenai/longformer-large-4096-finetuned-triviaqa""": (
            """https://huggingface.co/allenai/longformer-large-4096-finetuned-triviaqa/resolve/main/merges.txt"""
        ),
        """allenai/longformer-base-4096-extra.pos.embd.only""": (
            """https://huggingface.co/allenai/longformer-base-4096-extra.pos.embd.only/resolve/main/merges.txt"""
        ),
        """allenai/longformer-large-4096-extra.pos.embd.only""": (
            """https://huggingface.co/allenai/longformer-large-4096-extra.pos.embd.only/resolve/main/merges.txt"""
        ),
    },
}

lowerCAmelCase							:  Optional[Any]   	=						{
    """allenai/longformer-base-4096""": 4096,
    """allenai/longformer-large-4096""": 4096,
    """allenai/longformer-large-4096-finetuned-triviaqa""": 4096,
    """allenai/longformer-base-4096-extra.pos.embd.only""": 4096,
    """allenai/longformer-large-4096-extra.pos.embd.only""": 4096,
}







@lru_cache()
# Copied from transformers.models.roberta.tokenization_roberta.bytes_to_unicode
def 			A_      (    ):
						SCREAMING_SNAKE_CASE_: Any  		=       (
						    list(range(ord("!"    )				,	ord("~"    ) + 1    )    ) + list(range(ord("¡"    )				,	ord("¬"    ) + 1    )    ) + list(range(ord("®"    )				,	ord("ÿ"    ) + 1    )    )
						)
						SCREAMING_SNAKE_CASE_: Tuple  		=       bs[:]
						SCREAMING_SNAKE_CASE_: str  		=       0
						for b in range(2**8    ):
												if b not in bs:
																		bs.append(_UpperCAmelCase    )
																		cs.append(2**8 + n    )
																		n += 1
						SCREAMING_SNAKE_CASE_: Optional[int]  		=       [chr(_UpperCAmelCase    ) for n in cs]
						return dict(zip(_UpperCAmelCase				,	_UpperCAmelCase    )    )







def 			A_      (    _UpperCAmelCase    ):
						SCREAMING_SNAKE_CASE_: str  		=       set()
						SCREAMING_SNAKE_CASE_: Union[str, Any]  		=       word[0]
						for char in word[1:]:
												pairs.add((prev_char, char)    )
												SCREAMING_SNAKE_CASE_: Tuple  		=       char
						return pairs



class   __lowercase				( UpperCAmelCase_	):




			"""simple docstring"""







			_UpperCAmelCase   :							Any										=     VOCAB_FILES_NAMES
			_UpperCAmelCase   :							Dict										=     PRETRAINED_VOCAB_FILES_MAP
			_UpperCAmelCase   :							str										=     PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
			_UpperCAmelCase   :							List[str]										=     ['''input_ids''', '''attention_mask''']



			def __init__( self  :     str   ,						lowerCAmelCase__  :     Union[str, Any]   ,						lowerCAmelCase__  :     Optional[int]   ,						lowerCAmelCase__  :     List[Any]="replace"   ,						lowerCAmelCase__  :     Optional[Any]="<s>"   ,						lowerCAmelCase__  :     int="</s>"   ,						lowerCAmelCase__  :     Optional[Any]="</s>"   ,						lowerCAmelCase__  :     int="<s>"   ,						lowerCAmelCase__  :     Optional[Any]="<unk>"   ,						lowerCAmelCase__  :     List[Any]="<pad>"   ,						lowerCAmelCase__  :     Any="<mask>"   ,						lowerCAmelCase__  :     Union[str, Any]=False   ,						**lowerCAmelCase__  :     Tuple   ,						):
									SCREAMING_SNAKE_CASE_: int  		=       AddedToken(lowerCAmelCase__   ,						lstrip=lowerCAmelCase__   ,						rstrip=lowerCAmelCase__) if isinstance(lowerCAmelCase__   ,						lowerCAmelCase__) else bos_token
									SCREAMING_SNAKE_CASE_: str  		=       AddedToken(lowerCAmelCase__   ,						lstrip=lowerCAmelCase__   ,						rstrip=lowerCAmelCase__) if isinstance(lowerCAmelCase__   ,						lowerCAmelCase__) else eos_token
									SCREAMING_SNAKE_CASE_: Optional[int]  		=       AddedToken(lowerCAmelCase__   ,						lstrip=lowerCAmelCase__   ,						rstrip=lowerCAmelCase__) if isinstance(lowerCAmelCase__   ,						lowerCAmelCase__) else sep_token
									SCREAMING_SNAKE_CASE_: Union[str, Any]  		=       AddedToken(lowerCAmelCase__   ,						lstrip=lowerCAmelCase__   ,						rstrip=lowerCAmelCase__) if isinstance(lowerCAmelCase__   ,						lowerCAmelCase__) else cls_token
									SCREAMING_SNAKE_CASE_: int  		=       AddedToken(lowerCAmelCase__   ,						lstrip=lowerCAmelCase__   ,						rstrip=lowerCAmelCase__) if isinstance(lowerCAmelCase__   ,						lowerCAmelCase__) else unk_token
									SCREAMING_SNAKE_CASE_: Any  		=       AddedToken(lowerCAmelCase__   ,						lstrip=lowerCAmelCase__   ,						rstrip=lowerCAmelCase__) if isinstance(lowerCAmelCase__   ,						lowerCAmelCase__) else pad_token

									# Mask token behave like a normal word, i.e. include the space before it
									SCREAMING_SNAKE_CASE_: Optional[int]  		=       AddedToken(lowerCAmelCase__   ,						lstrip=lowerCAmelCase__   ,						rstrip=lowerCAmelCase__) if isinstance(lowerCAmelCase__   ,						lowerCAmelCase__) else mask_token

									super().__init__(
									    errors=lowerCAmelCase__   ,						bos_token=lowerCAmelCase__   ,						eos_token=lowerCAmelCase__   ,						unk_token=lowerCAmelCase__   ,						sep_token=lowerCAmelCase__   ,						cls_token=lowerCAmelCase__   ,						pad_token=lowerCAmelCase__   ,						mask_token=lowerCAmelCase__   ,						add_prefix_space=lowerCAmelCase__   ,						**lowerCAmelCase__   ,						)

									with open(lowerCAmelCase__   ,						encoding="utf-8") as vocab_handle:
															SCREAMING_SNAKE_CASE_: Tuple  		=       json.load(lowerCAmelCase__)
									SCREAMING_SNAKE_CASE_: List[str]  		=       {v: k for k, v in self.encoder.items()}
									SCREAMING_SNAKE_CASE_: Optional[Any]  		=       errors  # how to handle errors in decoding
									SCREAMING_SNAKE_CASE_: List[Any]  		=       bytes_to_unicode()
									SCREAMING_SNAKE_CASE_: Optional[Any]  		=       {v: k for k, v in self.byte_encoder.items()}
									with open(lowerCAmelCase__   ,						encoding="utf-8") as merges_handle:
															SCREAMING_SNAKE_CASE_: List[Any]  		=       merges_handle.read().split("\n")[1:-1]
									SCREAMING_SNAKE_CASE_: str  		=       [tuple(merge.split()) for merge in bpe_merges]
									SCREAMING_SNAKE_CASE_: List[Any]  		=       dict(zip(lowerCAmelCase__   ,						range(len(lowerCAmelCase__))))
									SCREAMING_SNAKE_CASE_: str  		=       {}
									SCREAMING_SNAKE_CASE_: Optional[Any]  		=       add_prefix_space

									# Should have added re.IGNORECASE so BPE merges can happen for capitalized versions of contractions
									SCREAMING_SNAKE_CASE_: List[Any]  		=       re.compile(R"'s|'t|'re|'ve|'m|'ll|'d| ?\p{L}+| ?\p{N}+| ?[^\s\p{L}\p{N}]+|\s+(?!\S)|\s+")



			@property
			def        _SCREAMING_SNAKE_CASE			( self  :     int):
									return len(self.encoder)



			def        _SCREAMING_SNAKE_CASE			( self  :     int):
									return dict(self.encoder   ,						**self.added_tokens_encoder)



			def        _SCREAMING_SNAKE_CASE			( self  :     str   ,						lowerCAmelCase__  :     List[str]):
									if token in self.cache:
															return self.cache[token]
									SCREAMING_SNAKE_CASE_: Optional[int]  		=       tuple(lowerCAmelCase__)
									SCREAMING_SNAKE_CASE_: Optional[int]  		=       get_pairs(lowerCAmelCase__)

									if not pairs:
															return token

									while True:
															SCREAMING_SNAKE_CASE_: int  		=       min(lowerCAmelCase__   ,						key=lambda lowerCAmelCase__: self.bpe_ranks.get(lowerCAmelCase__   ,						float("inf")))
															if bigram not in self.bpe_ranks:
																					break
															SCREAMING_SNAKE_CASE_		,    SCREAMING_SNAKE_CASE_: List[Any]  		=       bigram
															SCREAMING_SNAKE_CASE_: Optional[int]  		=       []
															SCREAMING_SNAKE_CASE_: List[Any]  		=       0
															while i < len(lowerCAmelCase__):
																					try:
																											SCREAMING_SNAKE_CASE_: List[Any]  		=       word.index(lowerCAmelCase__   ,						lowerCAmelCase__)
																					except ValueError:
																											new_word.extend(word[i:])
																											break
																					else:
																											new_word.extend(word[i:j])
																											SCREAMING_SNAKE_CASE_: Tuple  		=       j

																					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
															SCREAMING_SNAKE_CASE_: str  		=       tuple(lowerCAmelCase__)
															SCREAMING_SNAKE_CASE_: int  		=       new_word
															if len(lowerCAmelCase__) == 1:
																					break
															else:
																					SCREAMING_SNAKE_CASE_: Dict  		=       get_pairs(lowerCAmelCase__)
									SCREAMING_SNAKE_CASE_: Union[str, Any]  		=       " ".join(lowerCAmelCase__)
									SCREAMING_SNAKE_CASE_: Tuple  		=       word
									return word



			def        _SCREAMING_SNAKE_CASE			( self  :     Union[str, Any]   ,						lowerCAmelCase__  :     Tuple):
									SCREAMING_SNAKE_CASE_: Optional[Any]  		=       []
									for token in re.findall(self.pat   ,						lowerCAmelCase__):
															SCREAMING_SNAKE_CASE_: str  		=       "".join(
															    self.byte_encoder[b] for b in token.encode("utf-8"))  # Maps all our bytes to unicode strings, avoiding control tokens of the BPE (spaces in our case)
															bpe_tokens.extend(bpe_token for bpe_token in self.bpe(lowerCAmelCase__).split(" "))
									return bpe_tokens



			def        _SCREAMING_SNAKE_CASE			( self  :     Optional[int]   ,						lowerCAmelCase__  :     Tuple):
									return self.encoder.get(lowerCAmelCase__   ,						self.encoder.get(self.unk_token))



			def        _SCREAMING_SNAKE_CASE			( self  :     str   ,						lowerCAmelCase__  :     Union[str, Any]):
									return self.decoder.get(lowerCAmelCase__)



			def        _SCREAMING_SNAKE_CASE			( self  :     Optional[int]   ,						lowerCAmelCase__  :     Optional[int]):
									SCREAMING_SNAKE_CASE_: Any  		=       "".join(lowerCAmelCase__)
									SCREAMING_SNAKE_CASE_: Union[str, Any]  		=       bytearray([self.byte_decoder[c] for c in text]).decode("utf-8"   ,						errors=self.errors)
									return text



			def        _SCREAMING_SNAKE_CASE			( self  :     Dict   ,						lowerCAmelCase__  :     str   ,						lowerCAmelCase__  :     Optional[str] = None):
									if not os.path.isdir(lowerCAmelCase__):
															logger.error(F"Vocabulary path ({save_directory}) should be a directory")
															return
									SCREAMING_SNAKE_CASE_: Any  		=       os.path.join(
									    lowerCAmelCase__   ,						(filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"])
									SCREAMING_SNAKE_CASE_: 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")

									SCREAMING_SNAKE_CASE_: List[Any]  		=       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!")
																											SCREAMING_SNAKE_CASE_: List[Any]  		=       token_index
																					writer.write(" ".join(lowerCAmelCase__) + "\n")
																					index += 1

									return vocab_file, merge_file



			def        _SCREAMING_SNAKE_CASE			( self  :     List[str]   ,						lowerCAmelCase__  :     List[int]   ,						lowerCAmelCase__  :     Optional[List[int]] = None):
									if token_ids_a is None:
															return [self.cls_token_id] + token_ids_a + [self.sep_token_id]
									SCREAMING_SNAKE_CASE_: Optional[int]  		=       [self.cls_token_id]
									SCREAMING_SNAKE_CASE_: Dict  		=       [self.sep_token_id]
									return cls + token_ids_a + sep + sep + token_ids_a + sep



			def        _SCREAMING_SNAKE_CASE			( self  :     Union[str, Any]   ,						lowerCAmelCase__  :     List[int]   ,						lowerCAmelCase__  :     Optional[List[int]] = None   ,						lowerCAmelCase__  :     bool = False):
									if already_has_special_tokens:
															return super().get_special_tokens_mask(
															    token_ids_a=lowerCAmelCase__   ,						token_ids_a=lowerCAmelCase__   ,						already_has_special_tokens=lowerCAmelCase__)

									if token_ids_a is None:
															return [1] + ([0] * len(lowerCAmelCase__)) + [1]
									return [1] + ([0] * len(lowerCAmelCase__)) + [1, 1] + ([0] * len(lowerCAmelCase__)) + [1]



			def        _SCREAMING_SNAKE_CASE			( self  :     Optional[int]   ,						lowerCAmelCase__  :     List[int]   ,						lowerCAmelCase__  :     Optional[List[int]] = None):
									SCREAMING_SNAKE_CASE_: Optional[int]  		=       [self.sep_token_id]
									SCREAMING_SNAKE_CASE_: int  		=       [self.cls_token_id]

									if token_ids_a is None:
															return len(cls + token_ids_a + sep) * [0]
									return len(cls + token_ids_a + sep + sep + token_ids_a + sep) * [0]




			def        _SCREAMING_SNAKE_CASE			( self  :     int   ,						lowerCAmelCase__  :     Union[str, Any]   ,						lowerCAmelCase__  :     List[str]=False   ,						**lowerCAmelCase__  :     str):
									SCREAMING_SNAKE_CASE_: List[Any]  		=       kwargs.pop("add_prefix_space"   ,						self.add_prefix_space)
									if (is_split_into_words or add_prefix_space) and (len(lowerCAmelCase__) > 0 and not text[0].isspace()):
															SCREAMING_SNAKE_CASE_: Optional[Any]  		=       " " + text
									return (text, kwargs)






