'''simple docstring'''





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


SCREAMING_SNAKE_CASE_:     Dict  =logging.get_logger(__name__)


SCREAMING_SNAKE_CASE_:     List[Any]  ={'vocab_file': 'vocab.json', 'merges_file': 'merges.txt'}

SCREAMING_SNAKE_CASE_:     Tuple  ={
    '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'
        ),
    },
}

SCREAMING_SNAKE_CASE_:     Tuple  ={
    'allenai/longformer-base-4096': 40_96,
    'allenai/longformer-large-4096': 40_96,
    'allenai/longformer-large-4096-finetuned-triviaqa': 40_96,
    'allenai/longformer-base-4096-extra.pos.embd.only': 40_96,
    'allenai/longformer-large-4096-extra.pos.embd.only': 40_96,
}





@lru_cache()
# Copied from transformers.models.roberta.tokenization_roberta.bytes_to_unicode
def 	lowerCAmelCase_				(					)    ->      List[str]:


     '''simple docstring'''




     UpperCAmelCase_           =   (
         list(range(ord("!"			)					,    ord("~"			) + 1			)			) + list(range(ord("¡"			)					,    ord("¬"			) + 1			)			) + list(range(ord("®"			)					,    ord("ÿ"			) + 1			)			)
     )
     UpperCAmelCase_           =   bs[:]
     UpperCAmelCase_           =   0
     for b in range(2**8			):
          if b not in bs:
               bs.append(snake_case_			)
               cs.append(2**8 + n			)
               n += 1
     UpperCAmelCase_           =   [chr(snake_case_			) for n in cs]
     return dict(zip(snake_case_					,    snake_case_			)			)





def 	lowerCAmelCase_				(					snake_case_       : Union[str, Any]			)    ->      int:


     '''simple docstring'''




     UpperCAmelCase_           =   set()
     UpperCAmelCase_           =   word[0]
     for char in word[1:]:
          pairs.add((prev_char, char)			)
          UpperCAmelCase_           =   char
     return pairs






class        __A      ( UpperCamelCase__	):
    a__       :						Dict          =  VOCAB_FILES_NAMES
    a__       :						Union[str, Any]          =  PRETRAINED_VOCAB_FILES_MAP
    a__       :						Optional[int]          =  PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
    a__       :						Union[str, Any]          =  ["""input_ids""", """attention_mask"""]



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

         # Mask token behave like a normal word, i.e. include the space before it
         UpperCAmelCase_           =   AddedToken(__a   ,			lstrip=__a   ,			rstrip=__a ) if isinstance(__a   ,			__a ) else mask_token

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

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

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



    @property
    def 					_lowercase						(self    :    str ):
         return len(self.encoder )



    def 					_lowercase						(self    :    Dict ):
         return dict(self.encoder   ,			**self.added_tokens_encoder )



    def 					_lowercase						(self    :    Any   ,			__a    :    Any ):
         if token in self.cache:
              return self.cache[token]
         UpperCAmelCase_           =   tuple(__a )
         UpperCAmelCase_           =   get_pairs(__a )

         if not pairs:
              return token

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

                   if word[i] == first and i < len(__a ) - 1 and word[i + 1] == second:
                        new_word.append(first + second )
                        i += 2
                   else:
                        new_word.append(word[i] )
                        i += 1
              UpperCAmelCase_           =   tuple(__a )
              UpperCAmelCase_           =   new_word
              if len(__a ) == 1:
                   break
              else:
                   UpperCAmelCase_           =   get_pairs(__a )
         UpperCAmelCase_           =   " ".join(__a )
         UpperCAmelCase_           =   word
         return word



    def 					_lowercase						(self    :    Tuple   ,			__a    :    Tuple ):
         UpperCAmelCase_           =   []
         for token in re.findall(self.pat   ,			__a ):
              UpperCAmelCase_           =   "".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(__a ).split(" " ) )
         return bpe_tokens



    def 					_lowercase						(self    :    Optional[Any]   ,			__a    :    int ):
         return self.encoder.get(__a   ,			self.encoder.get(self.unk_token ) )



    def 					_lowercase						(self    :    str   ,			__a    :    Optional[Any] ):
         return self.decoder.get(__a )



    def 					_lowercase						(self    :    Dict   ,			__a    :    Dict ):
         UpperCAmelCase_           =   "".join(__a )
         UpperCAmelCase_           =   bytearray([self.byte_decoder[c] for c in text] ).decode("utf-8"   ,			errors=self.errors )
         return text



    def 					_lowercase						(self    :    Union[str, Any]   ,			__a    :    str   ,			__a    :    Optional[str] = None ):
         if not os.path.isdir(__a ):
              logger.error(f"""Vocabulary path ({save_directory}) should be a directory""" )
              return
         UpperCAmelCase_           =   os.path.join(
             __a   ,			(filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"] )
         UpperCAmelCase_           =   os.path.join(
             __a   ,			(filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["merges_file"] )

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

         UpperCAmelCase_           =   0
         with open(__a   ,			"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 __a : 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!" )
                        UpperCAmelCase_           =   token_index
                   writer.write(" ".join(__a ) + "\n" )
                   index += 1

         return vocab_file, merge_file



    def 					_lowercase						(self    :    Optional[Any]   ,			__a    :    List[int]   ,			__a    :    Optional[List[int]] = None ):
         if token_ids_a is None:
              return [self.cls_token_id] + token_ids_a + [self.sep_token_id]
         UpperCAmelCase_           =   [self.cls_token_id]
         UpperCAmelCase_           =   [self.sep_token_id]
         return cls + token_ids_a + sep + sep + token_ids_a + sep



    def 					_lowercase						(self    :    List[Any]   ,			__a    :    List[int]   ,			__a    :    Optional[List[int]] = None   ,			__a    :    bool = False ):
         if already_has_special_tokens:
              return super().get_special_tokens_mask(
                  token_ids_a=__a   ,			token_ids_a=__a   ,			already_has_special_tokens=__a )

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



    def 					_lowercase						(self    :    int   ,			__a    :    List[int]   ,			__a    :    Optional[List[int]] = None ):
         UpperCAmelCase_           =   [self.sep_token_id]
         UpperCAmelCase_           =   [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 					_lowercase						(self    :    List[Any]   ,			__a    :    Tuple   ,			__a    :    Optional[Any]=False   ,			**__a    :    Dict ):
         UpperCAmelCase_           =   kwargs.pop("add_prefix_space"   ,			self.add_prefix_space )
         if (is_split_into_words or add_prefix_space) and (len(__a ) > 0 and not text[0].isspace()):
              UpperCAmelCase_           =   " " + text
         return (text, kwargs)





'''simple docstring'''





def 	lowerCAmelCase_				(					snake_case_       : int					,    snake_case_       : int			)    ->      str:


     '''simple docstring'''




     if a < 0 or b < 0:
          raise ValueError("the value of both inputs must be positive"			)
     UpperCAmelCase_           =   str(bin(snake_case_			)			)[2:]  # remove the leading "0b"
     UpperCAmelCase_           =   str(bin(snake_case_			)			)[2:]
     UpperCAmelCase_           =   max(len(snake_case_			)					,    len(snake_case_			)			)
     return "0b" + "".join(
         str(int("1" in (char_a, char_b)			)			)
         for char_a, char_b in zip(a_binary.zfill(snake_case_			)					,    b_binary.zfill(snake_case_			)			)			)


if __name__ == "__main__":
    import doctest

    doctest.testmod()




