'''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


UpperCamelCase__     :	str				=			logging.get_logger(__name__)


UpperCamelCase__     :	str				=			{
    'vocab_file': 'vocab.json',
    'merges_file': 'merges.txt',
    'tokenizer_config_file': 'tokenizer_config.json',
}

UpperCamelCase__     :	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'
        )
    },
}

UpperCamelCase__     :	int				=			{'facebook/blenderbot_small-90M': 512}







def __UpperCamelCase(   _A					:				List[str]    ):
   '''simple docstring'''
   UpperCAmelCase__							:				Any   				=  set()
   UpperCAmelCase__							:				Optional[Any]   				=  word[0]
   for char in word[1:]:
      pairs.add((prev_char, char)    )
      UpperCAmelCase__							:				Union[str, Any]   				=  char

   UpperCAmelCase__							:				Union[str, Any]   				=  set(_A    )
   return pairs


class 				_lowercase	(      lowerCAmelCase   ):
      '''simple docstring'''


      UpperCAmelCase_      :      List[str]      							=   VOCAB_FILES_NAMES
      UpperCAmelCase_      :      str      							=   PRETRAINED_VOCAB_FILES_MAP
      UpperCAmelCase_      :      Union[str, Any]      							=   PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
      UpperCAmelCase_      :      Optional[int]      							=   ['''input_ids''', '''attention_mask''']




      def __init__(				self					,lowerCamelCase_					,lowerCamelCase_					,lowerCamelCase_="__start__"					,lowerCamelCase_="__end__"					,lowerCamelCase_="__unk__"					,lowerCamelCase_="__null__"					,**lowerCamelCase_					,)			->			Any:



         '''simple docstring'''



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

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




      @property
      def 		lowerCAmelCase__					(				self							)			->			int:



         '''simple docstring'''



         return len(self.encoder							)




      def 		lowerCAmelCase__					(				self							)			->			Dict:



         '''simple docstring'''



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




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_							)			->			str:



         '''simple docstring'''



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

         UpperCAmelCase__							:				List[str]   				=  token.split(''' '''							)
         UpperCAmelCase__							:				int   				=  []
         for token in tokens:
            if not len(lowerCamelCase_							):
               continue

            UpperCAmelCase__							:				Union[str, Any]   				=  token.lower()
            UpperCAmelCase__							:				int   				=  tuple(lowerCamelCase_							)
            UpperCAmelCase__							:				Dict   				=  tuple(list(word[:-1]							) + [word[-1] + '''</w>''']							)
            UpperCAmelCase__							:				Dict   				=  get_pairs(lowerCamelCase_							)

            if not pairs:
               words.append(lowerCamelCase_							)
               continue

            while True:
               UpperCAmelCase__							:				List[str]   				=  min(lowerCamelCase_					,key=lambda lowerCamelCase_							: self.bpe_ranks.get(lowerCamelCase_					,float('''inf'''							)							)							)
               if bigram not in self.bpe_ranks:
                  break
               UpperCAmelCase__				,      UpperCAmelCase__							:				Union[str, Any]   				=  bigram
               UpperCAmelCase__							:				List[Any]   				=  []
               UpperCAmelCase__							:				List[Any]   				=  0

               while i < len(lowerCamelCase_							):
                  try:
                     UpperCAmelCase__							:				Optional[int]   				=  word.index(lowerCamelCase_					,lowerCamelCase_							)
                     new_word.extend(word[i:j]							)
                     UpperCAmelCase__							:				int   				=  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
               UpperCAmelCase__							:				List[str]   				=  tuple(lowerCamelCase_							)
               UpperCAmelCase__							:				Dict   				=  new_word
               if len(lowerCamelCase_							) == 1:
                  break
               else:
                  UpperCAmelCase__							:				Tuple   				=  get_pairs(lowerCamelCase_							)
            UpperCAmelCase__							:				int   				=  '''@@ '''.join(lowerCamelCase_							)
            UpperCAmelCase__							:				Tuple   				=  word[:-4]

            UpperCAmelCase__							:				Union[str, Any]   				=  word
            words.append(lowerCamelCase_							)
         return " ".join(lowerCamelCase_							)




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_							)			->			List[str]:



         '''simple docstring'''



         UpperCAmelCase__							:				Optional[int]   				=  []

         UpperCAmelCase__							:				Dict   				=  re.findall(r'''\S+\n?'''					,lowerCamelCase_							)

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




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_							)			->			int:



         '''simple docstring'''



         UpperCAmelCase__							:				int   				=  token.lower()
         return self.encoder.get(lowerCamelCase_					,self.encoder.get(self.unk_token							)							)




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_							)			->			str:



         '''simple docstring'''



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




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_							)			->			str:



         '''simple docstring'''



         UpperCAmelCase__							:				int   				=  ''' '''.join(lowerCamelCase_							).replace('''@@ '''					,''''''							).strip()
         return out_string




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_					,lowerCamelCase_ = None							)			->			Tuple[str]:



         '''simple docstring'''



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

         UpperCAmelCase__							:				Optional[int]   				=  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!'''							)
                  UpperCAmelCase__							:				Optional[Any]   				=  token_index
               writer.write(''' '''.join(lowerCamelCase_							) + '''\n'''							)
               index += 1

         return vocab_file, merge_file





'''simple docstring'''

import math







def __UpperCamelCase(   _A					:				float  ,			_A					:				float    ):
   '''simple docstring'''
   return math.pow(_A  ,			2    ) - a







def __UpperCamelCase(   _A					:				float    ):
   '''simple docstring'''
   return 2 * x







def __UpperCamelCase(   _A					:				float    ):
   '''simple docstring'''
   UpperCAmelCase__							:				int   				=  2.0

   while start <= a:
      UpperCAmelCase__							:				int   				=  math.pow(_A  ,			2    )

   return start







def __UpperCamelCase(   _A					:				float  ,			_A					:				int = 99_99  ,			_A					:				float = 0.0_0_0_0_0_0_0_0_0_0_0_0_0_1    ):
   '''simple docstring'''

   if a < 0:
      raise ValueError('''math domain error'''    )

   UpperCAmelCase__							:				Any   				=  get_initial_point(_A    )

   for _ in range(_A    ):
      UpperCAmelCase__							:				Optional[Any]   				=  value
      UpperCAmelCase__							:				Tuple   				=  value - fx(_A  ,			_A    ) / fx_derivative(_A    )
      if abs(prev_value - value    ) < tolerance:
         return value

   return value


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

  testmod()




