





'''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


lowerCAmelCase					:     List[str]												=logging.get_logger(__name__)


lowerCAmelCase					:     Optional[int]												={'''vocab_file''': '''vocab.json''', '''merges_file''': '''merges.txt'''}

lowerCAmelCase					:     Dict												={
    '''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''': 4_096,
    '''allenai/longformer-large-4096''': 4_096,
    '''allenai/longformer-large-4096-finetuned-triviaqa''': 4_096,
    '''allenai/longformer-base-4096-extra.pos.embd.only''': 4_096,
    '''allenai/longformer-large-4096-extra.pos.embd.only''': 4_096,
}
@lru_cache()
# Copied from transformers.models.roberta.tokenization_roberta.bytes_to_unicode
def 							UpperCAmelCase_  (						):
   lowercase_			:Optional[int]    			= (
       list(range(ord("!" )	,ord("~" ) + 1 ) ) + list(range(ord("¡" )	,ord("¬" ) + 1 ) ) + list(range(ord("®" )	,ord("ÿ" ) + 1 ) )
   )
   lowercase_			:Dict    			= bs[:]
   lowercase_			:Union[str, Any]    			= 0
   for b in range(2**8 ):
      if b not in bs:
         bs.append(__lowerCamelCase )
         cs.append(2**8 + n )
         n += 1
   lowercase_			:List[str]    			= [chr(__lowerCamelCase ) for n in cs]
   return dict(zip(__lowerCamelCase	,__lowerCamelCase ) )
def 							UpperCAmelCase_  (						__lowerCamelCase					:					Dict ):
   lowercase_			:Optional[int]    			= set()
   lowercase_			:Union[str, Any]    			= word[0]
   for char in word[1:]:
      pairs.add((prev_char, char) )
      lowercase_			:Tuple    			= char
   return pairs


class       a_   (				_lowerCAmelCase							):
     __A      =			VOCAB_FILES_NAMES
     __A      =			PRETRAINED_VOCAB_FILES_MAP
     __A      =			PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
     __A      =			["input_ids", "attention_mask"]





     def __init__( self		:					str	,      lowercase		:					int	,      lowercase		:					List[Any]	,      lowercase		:					Optional[Any]="replace"	,      lowercase		:					Tuple="<s>"	,      lowercase		:					Dict="</s>"	,      lowercase		:					Optional[int]="</s>"	,      lowercase		:					List[Any]="<s>"	,      lowercase		:					Any="<unk>"	,      lowercase		:					Tuple="<pad>"	,      lowercase		:					Tuple="<mask>"	,      lowercase		:					Optional[Any]=False	,      **lowercase		:					Optional[int]	,      ):





        """simple docstring"""




        lowercase_			:Any    			= AddedToken(lowercase	,      lstrip=lowercase	,      rstrip=lowercase						) if isinstance(lowercase	,      lowercase						) else bos_token
        lowercase_			:Union[str, Any]    			= AddedToken(lowercase	,      lstrip=lowercase	,      rstrip=lowercase						) if isinstance(lowercase	,      lowercase						) else eos_token
        lowercase_			:Optional[Any]    			= AddedToken(lowercase	,      lstrip=lowercase	,      rstrip=lowercase						) if isinstance(lowercase	,      lowercase						) else sep_token
        lowercase_			:Any    			= AddedToken(lowercase	,      lstrip=lowercase	,      rstrip=lowercase						) if isinstance(lowercase	,      lowercase						) else cls_token
        lowercase_			:Tuple    			= AddedToken(lowercase	,      lstrip=lowercase	,      rstrip=lowercase						) if isinstance(lowercase	,      lowercase						) else unk_token
        lowercase_			:Union[str, Any]    			= AddedToken(lowercase	,      lstrip=lowercase	,      rstrip=lowercase						) if isinstance(lowercase	,      lowercase						) else pad_token

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

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

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

        # Should have added re.IGNORECASE so BPE merges can happen for capitalized versions of contractions
        lowercase_			:Tuple    			= 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		:					int						):





        """simple docstring"""




        return len(self.encoder						)





     def 							lowercase__      ( self		:					Tuple						):





        """simple docstring"""




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





     def 							lowercase__      ( self		:					Optional[Any]	,      lowercase		:					int						):





        """simple docstring"""




        if token in self.cache:
           return self.cache[token]
        lowercase_			:Dict    			= tuple(lowercase						)
        lowercase_			:Union[str, Any]    			= get_pairs(lowercase						)

        if not pairs:
           return token

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

              if word[i] == first and i < len(lowercase						) - 1 and word[i + 1] == second:
                 new_word.append(first + second						)
                 i += 2
              else:
                 new_word.append(word[i]						)
                 i += 1
           lowercase_			:Tuple    			= tuple(lowercase						)
           lowercase_			:List[Any]    			= new_word
           if len(lowercase						) == 1:
              break
           else:
              lowercase_			:Tuple    			= get_pairs(lowercase						)
        lowercase_			:Optional[Any]    			= " ".join(lowercase						)
        lowercase_			:Any    			= word
        return word





     def 							lowercase__      ( self		:					Any	,      lowercase		:					Dict						):





        """simple docstring"""




        lowercase_			:Any    			= []
        for token in re.findall(self.pat	,      lowercase						):
           lowercase_			:Tuple    			= "".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(lowercase						).split(" "						)						)
        return bpe_tokens





     def 							lowercase__      ( self		:					Optional[Any]	,      lowercase		:					List[Any]						):





        """simple docstring"""




        return self.encoder.get(lowercase	,      self.encoder.get(self.unk_token						)						)





     def 							lowercase__      ( self		:					Union[str, Any]	,      lowercase		:					Dict						):





        """simple docstring"""




        return self.decoder.get(lowercase						)





     def 							lowercase__      ( self		:					int	,      lowercase		:					int						):





        """simple docstring"""




        lowercase_			:int    			= "".join(lowercase						)
        lowercase_			:Tuple    			= bytearray([self.byte_decoder[c] for c in text]						).decode("utf-8"	,      errors=self.errors						)
        return text





     def 							lowercase__      ( self		:					Optional[Any]	,      lowercase		:					str	,      lowercase		:					Optional[str] = None						):





        """simple docstring"""




        if not os.path.isdir(lowercase						):
           logger.error(F'Vocabulary path ({save_directory}) should be a directory'						)
           return
        lowercase_			:int    			= os.path.join(
            lowercase	,      (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]						)
        lowercase_			:Optional[Any]    			= os.path.join(
            lowercase	,      (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["merges_file"]						)

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

        lowercase_			:Union[str, Any]    			= 0
        with open(lowercase	,      "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 lowercase						: 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!"						)
                 lowercase_			:Dict    			= token_index
              writer.write(" ".join(lowercase						) + "\n"						)
              index += 1

        return vocab_file, merge_file





     def 							lowercase__      ( self		:					Any	,      lowercase		:					List[int]	,      lowercase		:					Optional[List[int]] = None						):





        """simple docstring"""




        if token_ids_a is None:
           return [self.cls_token_id] + token_ids_a + [self.sep_token_id]
        lowercase_			:Any    			= [self.cls_token_id]
        lowercase_			:Any    			= [self.sep_token_id]
        return cls + token_ids_a + sep + sep + token_ids_a + sep





     def 							lowercase__      ( self		:					Union[str, Any]	,      lowercase		:					List[int]	,      lowercase		:					Optional[List[int]] = None	,      lowercase		:					bool = False						):





        """simple docstring"""




        if already_has_special_tokens:
           return super().get_special_tokens_mask(
               token_ids_a=lowercase	,      token_ids_a=lowercase	,      already_has_special_tokens=lowercase						)

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





     def 							lowercase__      ( self		:					Tuple	,      lowercase		:					List[int]	,      lowercase		:					Optional[List[int]] = None						):





        """simple docstring"""




        lowercase_			:str    			= [self.sep_token_id]
        lowercase_			:Optional[Any]    			= [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		:					str	,      lowercase		:					int	,      lowercase		:					Optional[Any]=False	,      **lowercase		:					int						):





        """simple docstring"""




        lowercase_			:str    			= kwargs.pop("add_prefix_space"	,      self.add_prefix_space						)
        if (is_split_into_words or add_prefix_space) and (len(lowercase						) > 0 and not text[0].isspace()):
           lowercase_			:Dict    			= " " + text
        return (text, kwargs)









'''simple docstring'''


def 							UpperCAmelCase_  (						__lowerCamelCase					:					int = 1_00 ):
   lowercase_			:Tuple    			= n * (n + 1) * (2 * n + 1) / 6
   lowercase_			:List[str]    			= (n * (n + 1) / 2) ** 2
   return int(square_of_sum - sum_of_squares )


if __name__ == "__main__":
 print(F'''{solution() = }''')


