"""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


lowerCAmelCase__  :  Tuple						     =	logging.get_logger(__name__)


lowerCAmelCase__  :  Dict						     =	{
    'vocab_file': 'vocab.json',
    'merges_file': 'merges.txt',
    'tokenizer_config_file': 'tokenizer_config.json',
}

lowerCAmelCase__  :  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'
        )
    },
}

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



def   a_						(					lowerCamelCase       ):
				UpperCAmelCase__             =							set()
				UpperCAmelCase__             =							word[0]
				for char in word[1:]:
								pairs.add((prev_char, char)       )
								UpperCAmelCase__             =							char

				UpperCAmelCase__             =							set(__lowerCamelCase       )
				return pairs







class 				snake_case       ( A_				):




					"""simple docstring"""

					snake_case__				    = VOCAB_FILES_NAMES
					snake_case__				    = PRETRAINED_VOCAB_FILES_MAP
					snake_case__				    = PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
					snake_case__				    = ["input_ids", "attention_mask"]







					def __init__(				self   :	Union[str, Any]    ,lowerCamelCase__   :	int    ,lowerCamelCase__   :	Optional[Any]    ,lowerCamelCase__   :	Dict="__start__"    ,lowerCamelCase__   :	Any="__end__"    ,lowerCamelCase__   :	Tuple="__unk__"    ,lowerCamelCase__   :	Dict="__null__"    ,**lowerCamelCase__   :	List[Any]    ,):
									super().__init__(unk_token=snake_case__    ,bos_token=snake_case__    ,eos_token=snake_case__    ,pad_token=snake_case__    ,**snake_case__			)

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







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







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







					def 		__lowerCAmelCase						(				self   :	Tuple    ,lowerCamelCase__   :	str			):


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

									UpperCAmelCase__             =							token.split(' '			)
									UpperCAmelCase__             =							[]
									for token in tokens:
													if not len(snake_case__			):
																	continue

													UpperCAmelCase__             =							token.lower()
													UpperCAmelCase__             =							tuple(snake_case__			)
													UpperCAmelCase__             =							tuple(list(word[:-1]			) + [word[-1] + '</w>']			)
													UpperCAmelCase__             =							get_pairs(snake_case__			)

													if not pairs:
																	words.append(snake_case__			)
																	continue

													while True:
																	UpperCAmelCase__             =							min(snake_case__    ,key=lambda lowerCamelCase__			: self.bpe_ranks.get(snake_case__    ,float('inf'			)			)			)
																	if bigram not in self.bpe_ranks:
																					break
																	UpperCAmelCase__             =							bigram
																	UpperCAmelCase__             =							[]
																	UpperCAmelCase__             =							0

																	while i < len(snake_case__			):
																					try:
																									UpperCAmelCase__             =							word.index(snake_case__    ,snake_case__			)
																									new_word.extend(word[i:j]			)
																									UpperCAmelCase__             =							j
																					except ValueError:
																									new_word.extend(word[i:]			)
																									break

																					if word[i] == first and i < len(snake_case__			) - 1 and word[i + 1] == second:
																									new_word.append(first + second			)
																									i += 2
																					else:
																									new_word.append(word[i]			)
																									i += 1
																	UpperCAmelCase__             =							tuple(snake_case__			)
																	UpperCAmelCase__             =							new_word
																	if len(snake_case__			) == 1:
																					break
																	else:
																					UpperCAmelCase__             =							get_pairs(snake_case__			)
													UpperCAmelCase__             =							"@@ ".join(snake_case__			)
													UpperCAmelCase__             =							word[:-4]

													UpperCAmelCase__             =							word
													words.append(snake_case__			)
									return " ".join(snake_case__			)







					def 		__lowerCAmelCase						(				self   :	Tuple    ,lowerCamelCase__   :	str			):
									UpperCAmelCase__             =							[]

									UpperCAmelCase__             =							re.findall(R'\S+\n?'    ,snake_case__			)

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







					def 		__lowerCAmelCase						(				self   :	Any    ,lowerCamelCase__   :	str			):
									UpperCAmelCase__             =							token.lower()
									return self.encoder.get(snake_case__    ,self.encoder.get(self.unk_token			)			)







					def 		__lowerCAmelCase						(				self   :	List[str]    ,lowerCamelCase__   :	int			):
									return self.decoder.get(snake_case__    ,self.unk_token			)







					def 		__lowerCAmelCase						(				self   :	Dict    ,lowerCamelCase__   :	List[str]			):
									UpperCAmelCase__             =							" ".join(snake_case__			).replace('@@ '    ,''			).strip()
									return out_string







					def 		__lowerCAmelCase						(				self   :	Any    ,lowerCamelCase__   :	str    ,lowerCamelCase__   :	Optional[str] = None			):


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

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

									UpperCAmelCase__             =							0
									with open(snake_case__    ,'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__             =							token_index
																	writer.write(' '.join(snake_case__			) + '\n'			)
																	index += 1

									return vocab_file, merge_file





def 			UpperCamelCase					(    __lowerCamelCase     : str				,					__lowerCamelCase     : int    ):
       snake_case       :   list[list[str]]							=      [[] for _ in range(__lowerCamelCase    )]
       snake_case       :   int							=      key - 1

       if key <= 0:
              raise ValueError("Height of grid can't be 0 or negative"    )
       if key == 1 or len(__lowerCamelCase    ) <= key:
              return input_string

       for position, character in enumerate(__lowerCamelCase    ):
              snake_case       :   Any							=      position % (lowest * 2)  # puts it in bounds
              snake_case       :   Optional[int]							=      min(__lowerCamelCase				,					lowest * 2 - num    )  # creates zigzag pattern
              temp_grid[num].append(__lowerCamelCase    )
       snake_case       :   List[str]							=      ["".join(__lowerCamelCase    ) for row in temp_grid]
       snake_case       :   Tuple							=      "".join(__lowerCamelCase    )

       return output_string


def 			UpperCamelCase					(    __lowerCamelCase     : str				,					__lowerCamelCase     : int    ):
       snake_case       :   Dict							=      []
       snake_case       :   Union[str, Any]							=      key - 1

       if key <= 0:
              raise ValueError("Height of grid can't be 0 or negative"    )
       if key == 1:
              return input_string

       snake_case       :   list[list[str]]							=      [[] for _ in range(__lowerCamelCase    )]  # generates template
       for position in range(len(__lowerCamelCase    )    ):
              snake_case       :   List[str]							=      position % (lowest * 2)  # puts it in bounds
              snake_case       :   Optional[int]							=      min(__lowerCamelCase				,					lowest * 2 - num    )  # creates zigzag pattern
              temp_grid[num].append("*"    )

       snake_case       :   Tuple							=      0
       for row in temp_grid:  # fills in the characters
              snake_case       :   Union[str, Any]							=      input_string[counter : counter + len(__lowerCamelCase    )]
              grid.append(list(__lowerCamelCase    )    )
              counter += len(__lowerCamelCase    )

       snake_case       :   str							=      ""  # reads as zigzag
       for position in range(len(__lowerCamelCase    )    ):
              snake_case       :   Optional[int]							=      position % (lowest * 2)  # puts it in bounds
              snake_case       :   Tuple							=      min(__lowerCamelCase				,					lowest * 2 - num    )  # creates zigzag pattern
              output_string += grid[num][0]
              grid[num].pop(0    )
       return output_string


def 			UpperCamelCase					(    __lowerCamelCase     : str    ):
       snake_case       :   Tuple							=      {}
       for key_guess in range(1				,					len(__lowerCamelCase    )    ):  # tries every key
              snake_case       :   Any							=      decrypt(__lowerCamelCase				,					__lowerCamelCase    )
       return results


if __name__ == "__main__":
   import doctest

   doctest.testmod()





