


import os
import re
from shutil import copyfile
from typing import List, Optional, Tuple

from ...tokenization_utils import PreTrainedTokenizer
from ...utils import logging


lowercase_	   =     logging.get_logger(__name__)

lowercase_	   =     {
    'vocab_file': 'vocab.txt',
    'merges_file': 'bpe.codes',
}

lowercase_	   =     {
    'vocab_file': {
        'vinai/phobert-base': 'https://huggingface.co/vinai/phobert-base/resolve/main/vocab.txt',
        'vinai/phobert-large': 'https://huggingface.co/vinai/phobert-large/resolve/main/vocab.txt',
    },
    'merges_file': {
        'vinai/phobert-base': 'https://huggingface.co/vinai/phobert-base/resolve/main/bpe.codes',
        'vinai/phobert-large': 'https://huggingface.co/vinai/phobert-large/resolve/main/bpe.codes',
    },
}

lowercase_	   =     {
    'vinai/phobert-base': 2_5_6,
    'vinai/phobert-large': 2_5_6,
}
def 				UpperCamelCase__					(  SCREAMING_SNAKE_CASE__						):
 __lowerCamelCase		:							Optional[Any]		 =						set()
 __lowerCamelCase		:							Union[str, Any]		 =						word[0]
 for char in word[1:]:
  pairs.add((prev_char, char)						)
  __lowerCamelCase		:							Any		 =						char

 __lowerCamelCase		:							List[Any]		 =						set(SCREAMING_SNAKE_CASE__						)
 return pairs



class 	A_ (	__UpperCamelCase   ):




      '''simple docstring'''


      __snake_case 	=       VOCAB_FILES_NAMES
      __snake_case 	=       PRETRAINED_VOCAB_FILES_MAP
      __snake_case 	=       PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES




      def __init__(    self:	List[Any]						,				a:	Tuple						,				a:	Union[str, Any]						,				a:	Optional[Any]="<s>"						,				a:	Optional[Any]="</s>"						,				a:	Optional[int]="</s>"						,				a:	List[str]="<s>"						,				a:	Any="<unk>"						,				a:	str="<pad>"						,				a:	Union[str, Any]="<mask>"						,				**a:	Dict						,				):
       super().__init__(
           bos_token=a						,				eos_token=a						,				unk_token=a						,				sep_token=a						,				cls_token=a						,				pad_token=a						,				mask_token=a						,				**a						,				)

       __lowerCamelCase		:							str		 =						vocab_file
       __lowerCamelCase		:							Optional[Any]		 =						merges_file

       __lowerCamelCase		:							int		 =						{}
       __lowerCamelCase		:							Tuple		 =						0
       __lowerCamelCase		:							Union[str, Any]		 =						1
       __lowerCamelCase		:							int		 =						2
       __lowerCamelCase		:							Union[str, Any]		 =						3

       self.add_from_file(a    )

       __lowerCamelCase		:							Dict		 =						{v: k for k, v in self.encoder.items()}

       with open(a						,				encoding='utf-8'    ) as merges_handle:
        __lowerCamelCase		:							List[Any]		 =						merges_handle.read().split('\n'    )[:-1]
       __lowerCamelCase		:							Union[str, Any]		 =						[tuple(merge.split()[:-1]    ) for merge in merges]
       __lowerCamelCase		:							str		 =						dict(zip(a						,				range(len(a    )    )    )    )
       __lowerCamelCase		:							Dict		 =						{}




      def 					_snake_case     (    self:	int						,				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]
       __lowerCamelCase		:							str		 =						[self.cls_token_id]
       __lowerCamelCase		:							Union[str, Any]		 =						[self.sep_token_id]
       return cls + token_ids_a + sep + sep + token_ids_a + sep




      def 					_snake_case     (    self:	Optional[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 					_snake_case     (    self:	Tuple						,				a:	List[int]						,				a:	Optional[List[int]] = None    ):
       __lowerCamelCase		:							Dict		 =						[self.sep_token_id]
       __lowerCamelCase		:							Dict		 =						[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]




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




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




      def 					_snake_case     (    self:	int						,				a:	Optional[Any]    ):
       if token in self.cache:
        return self.cache[token]
       __lowerCamelCase		:							Any		 =						tuple(a    )
       __lowerCamelCase		:							str		 =						tuple(list(word[:-1]    ) + [word[-1] + '</w>']    )
       __lowerCamelCase		:							Any		 =						get_pairs(a    )

       if not pairs:
        return token

       while True:
        __lowerCamelCase		:							Any		 =						min(a						,				key=lambda a    : self.bpe_ranks.get(a						,				float('inf'    )    )    )
        if bigram not in self.bpe_ranks:
         break
        __lowerCamelCase ,					__lowerCamelCase		:							int		 =						bigram
        __lowerCamelCase		:							Tuple		 =						[]
        __lowerCamelCase		:							Optional[Any]		 =						0
        while i < len(a    ):
         try:
          __lowerCamelCase		:							str		 =						word.index(a						,				a    )
         except ValueError:
          new_word.extend(word[i:]    )
          break
         else:
          new_word.extend(word[i:j]    )
          __lowerCamelCase		:							Dict		 =						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
        __lowerCamelCase		:							Tuple		 =						tuple(a    )
        __lowerCamelCase		:							Optional[int]		 =						new_word
        if len(a    ) == 1:
         break
        else:
         __lowerCamelCase		:							Any		 =						get_pairs(a    )
       __lowerCamelCase		:							Union[str, Any]		 =						'@@ '.join(a    )
       __lowerCamelCase		:							int		 =						word[:-4]
       __lowerCamelCase		:							Dict		 =						word
       return word




      def 					_snake_case     (    self:	int						,				a:	Optional[Any]    ):
       __lowerCamelCase		:							Optional[int]		 =						[]

       __lowerCamelCase		:							Dict		 =						re.findall(R'\S+\n?'						,				a    )

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




      def 					_snake_case     (    self:	Dict						,				a:	Tuple    ):
       return self.encoder.get(a						,				self.encoder.get(self.unk_token    )    )




      def 					_snake_case     (    self:	List[Any]						,				a:	Optional[Any]    ):
       return self.decoder.get(a						,				self.unk_token    )




      def 					_snake_case     (    self:	Union[str, Any]						,				a:	List[str]    ):
       __lowerCamelCase		:							Any		 =						' '.join(a    ).replace('@@ '						,				''    ).strip()
       return out_string




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

       if os.path.abspath(self.vocab_file    ) != os.path.abspath(a    ):
        copyfile(self.vocab_file						,				a    )

       if os.path.abspath(self.merges_file    ) != os.path.abspath(a    ):
        copyfile(self.merges_file						,				a    )

       return out_vocab_file, out_merge_file




      def 					_snake_case     (    self:	Optional[Any]						,				a:	int    ):
       if isinstance(a						,				a    ):
        try:
         with open(a						,				'r'						,				encoding='utf-8'    ) as fd:
          self.add_from_file(a    )
        except FileNotFoundError as fnfe:
         raise fnfe
        except UnicodeError:
         raise Exception(F'Incorrect encoding detected in {f}, please rebuild the dataset'    )
        return

       __lowerCamelCase		:							Optional[Any]		 =						f.readlines()
       for lineTmp in lines:
        __lowerCamelCase		:							Tuple		 =						lineTmp.strip()
        __lowerCamelCase		:							Optional[int]		 =						line.rfind(' '    )
        if idx == -1:
         raise ValueError('Incorrect dictionary format, expected \'<token> <cnt>\''    )
        __lowerCamelCase		:							List[Any]		 =						line[:idx]
        __lowerCamelCase		:							Union[str, Any]		 =						len(self.encoder    )





from math import pow
def 				UpperCamelCase__					(  SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__      ,	):
 if current_sum == needed_sum:
  # If the sum of the powers is equal to needed_sum, then we have a solution.
  solutions_count += 1
  return current_sum, solutions_count

 __lowerCamelCase		:							Optional[Any]		 =						int(pow(SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__						)						)
 if current_sum + i_to_n <= needed_sum:
  # If the sum of the powers is less than needed_sum, then continue adding powers.
  current_sum += i_to_n
  __lowerCamelCase ,					__lowerCamelCase		:							Optional[Any]		 =						backtrack(
      SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__      ,	current_number + 1      ,	SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__						)
  current_sum -= i_to_n
 if i_to_n < needed_sum:
  # If the power of i is less than needed_sum, then try with the next power.
  __lowerCamelCase ,					__lowerCamelCase		:							Dict		 =						backtrack(
      SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__      ,	current_number + 1      ,	SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__						)
 return current_sum, solutions_count
def 				UpperCamelCase__					(  SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__						):
 if not (1 <= needed_sum <= 1_000 and 2 <= power <= 10):
  raise ValueError(
      'Invalid input\n'
      'needed_sum must be between 1 and 1000, power between 2 and 10.'						)

 return backtrack(SCREAMING_SNAKE_CASE__      ,	SCREAMING_SNAKE_CASE__      ,	1      ,	0      ,	0						)[1]  # Return the solutions_count


if __name__ == "__main__":
       import doctest

       doctest.testmod()

