
"""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


_lowercase							 =							logging.get_logger(__name__)

_lowercase							 =							{
    '''vocab_file''': '''vocab.json''',
    '''merges_file''': '''merges.txt''',
}

_lowercase							 =							{
    '''vocab_file''': {
        '''roberta-base''': '''https://huggingface.co/roberta-base/resolve/main/vocab.json''',
        '''roberta-large''': '''https://huggingface.co/roberta-large/resolve/main/vocab.json''',
        '''roberta-large-mnli''': '''https://huggingface.co/roberta-large-mnli/resolve/main/vocab.json''',
        '''distilroberta-base''': '''https://huggingface.co/distilroberta-base/resolve/main/vocab.json''',
        '''roberta-base-openai-detector''': '''https://huggingface.co/roberta-base-openai-detector/resolve/main/vocab.json''',
        '''roberta-large-openai-detector''': (
            '''https://huggingface.co/roberta-large-openai-detector/resolve/main/vocab.json'''
        ),
    },
    '''merges_file''': {
        '''roberta-base''': '''https://huggingface.co/roberta-base/resolve/main/merges.txt''',
        '''roberta-large''': '''https://huggingface.co/roberta-large/resolve/main/merges.txt''',
        '''roberta-large-mnli''': '''https://huggingface.co/roberta-large-mnli/resolve/main/merges.txt''',
        '''distilroberta-base''': '''https://huggingface.co/distilroberta-base/resolve/main/merges.txt''',
        '''roberta-base-openai-detector''': '''https://huggingface.co/roberta-base-openai-detector/resolve/main/merges.txt''',
        '''roberta-large-openai-detector''': (
            '''https://huggingface.co/roberta-large-openai-detector/resolve/main/merges.txt'''
        ),
    },
}

_lowercase							 =							{
    '''roberta-base''': 512,
    '''roberta-large''': 512,
    '''roberta-large-mnli''': 512,
    '''distilroberta-base''': 512,
    '''roberta-base-openai-detector''': 512,
    '''roberta-large-openai-detector''': 512,
}



@lru_cache()
def     lowerCAmelCase__ (		)	->Tuple:
			__lowercase						      =					(
			    list(range(ord("!"			) ,      ord("~"			) + 1			)			) + list(range(ord("¡"			) ,      ord("¬"			) + 1			)			) + list(range(ord("®"			) ,      ord("ÿ"			) + 1			)			)
			)
			__lowercase						      =					bs[:]
			__lowercase						      =					0
			for b in range(2**8			):
						if b not in bs:
									bs.append(__magic_name__			)
									cs.append(2**8 + n			)
									n += 1
			__lowercase						      =					[chr(__magic_name__			) for n in cs]
			return dict(zip(__magic_name__ ,      __magic_name__			)			)



def     lowerCAmelCase__ (		__magic_name__			)	->Any:
			__lowercase						      =					set()
			__lowercase						      =					word[0]
			for char in word[1:]:
						pairs.add((prev_char, char)			)
						__lowercase						      =					char
			return pairs







class 				__a    (   __a					):



							'''simple docstring'''







							_lowerCamelCase				: int					      =      VOCAB_FILES_NAMES
							_lowerCamelCase				: Tuple					      =      PRETRAINED_VOCAB_FILES_MAP
							_lowerCamelCase				: Dict					      =      PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
							_lowerCamelCase				: Any					      =      ["""input_ids""", """attention_mask"""]
							def __init__(    self     ,						_lowerCamelCase     ,						_lowerCamelCase     ,						_lowerCamelCase="replace"     ,						_lowerCamelCase="<s>"     ,						_lowerCamelCase="</s>"     ,						_lowerCamelCase="</s>"     ,						_lowerCamelCase="<s>"     ,						_lowerCamelCase="<unk>"     ,						_lowerCamelCase="<pad>"     ,						_lowerCamelCase="<mask>"     ,						_lowerCamelCase=False     ,						**_lowerCamelCase     ,						) ->       List[str]:




										'''simple docstring'''
										__lowercase						      =					AddedToken(_lowerCamelCase     ,						lstrip=_lowerCamelCase     ,						rstrip=_lowerCamelCase					) if isinstance(_lowerCamelCase     ,						_lowerCamelCase					) else bos_token
										__lowercase						      =					AddedToken(_lowerCamelCase     ,						lstrip=_lowerCamelCase     ,						rstrip=_lowerCamelCase					) if isinstance(_lowerCamelCase     ,						_lowerCamelCase					) else eos_token
										__lowercase						      =					AddedToken(_lowerCamelCase     ,						lstrip=_lowerCamelCase     ,						rstrip=_lowerCamelCase					) if isinstance(_lowerCamelCase     ,						_lowerCamelCase					) else sep_token
										__lowercase						      =					AddedToken(_lowerCamelCase     ,						lstrip=_lowerCamelCase     ,						rstrip=_lowerCamelCase					) if isinstance(_lowerCamelCase     ,						_lowerCamelCase					) else cls_token
										__lowercase						      =					AddedToken(_lowerCamelCase     ,						lstrip=_lowerCamelCase     ,						rstrip=_lowerCamelCase					) if isinstance(_lowerCamelCase     ,						_lowerCamelCase					) else unk_token
										__lowercase						      =					AddedToken(_lowerCamelCase     ,						lstrip=_lowerCamelCase     ,						rstrip=_lowerCamelCase					) if isinstance(_lowerCamelCase     ,						_lowerCamelCase					) else pad_token

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

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

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

										# Should have added re.IGNORECASE so BPE merges can happen for capitalized versions of contractions
										__lowercase						      =					re.compile(R"'s|'t|'re|'ve|'m|'ll|'d| ?\p{L}+| ?\p{N}+| ?[^\s\p{L}\p{N}]+|\s+(?!\S)|\s+"					)
							@property
							def      SCREAMING_SNAKE_CASE	(    self					) ->       Any:




										'''simple docstring'''
										return len(self.encoder					)
							def      SCREAMING_SNAKE_CASE	(    self					) ->       Optional[Any]:




										'''simple docstring'''
										return dict(self.encoder     ,						**self.added_tokens_encoder					)
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase					) ->       Optional[Any]:




										'''simple docstring'''
										if token in self.cache:
													return self.cache[token]
										__lowercase						      =					tuple(_lowerCamelCase					)
										__lowercase						      =					get_pairs(_lowerCamelCase					)

										if not pairs:
													return token

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

																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
													__lowercase						      =					tuple(_lowerCamelCase					)
													__lowercase						      =					new_word
													if len(_lowerCamelCase					) == 1:
																break
													else:
																__lowercase						      =					get_pairs(_lowerCamelCase					)
										__lowercase						      =					" ".join(_lowerCamelCase					)
										__lowercase						      =					word
										return word
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase					) ->       List[str]:




										'''simple docstring'''
										__lowercase						      =					[]
										for token in re.findall(self.pat     ,						_lowerCamelCase					):
													__lowercase						      =					"".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(_lowerCamelCase					).split(" "					)					)
										return bpe_tokens
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase					) ->       Dict:




										'''simple docstring'''
										return self.encoder.get(_lowerCamelCase     ,						self.encoder.get(self.unk_token					)					)
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase					) ->       Optional[Any]:




										'''simple docstring'''
										return self.decoder.get(_lowerCamelCase					)
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase					) ->       Union[str, Any]:




										'''simple docstring'''
										__lowercase						      =					"".join(_lowerCamelCase					)
										__lowercase						      =					bytearray([self.byte_decoder[c] for c in text]					).decode("utf-8"     ,						errors=self.errors					)
										return text
							def      SCREAMING_SNAKE_CASE	(    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
										__lowercase						      =					os.path.join(
										    _lowerCamelCase     ,						(filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]					)
										__lowercase						      =					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"					)

										__lowercase						      =					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!"					)
																			__lowercase						      =					token_index
																writer.write(" ".join(_lowerCamelCase					) + "\n"					)
																index += 1

										return vocab_file, merge_file
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase     ,						_lowerCamelCase = None					) ->       List[int]:




										'''simple docstring'''
										if token_ids_a is None:
													return [self.cls_token_id] + token_ids_a + [self.sep_token_id]
										__lowercase						      =					[self.cls_token_id]
										__lowercase						      =					[self.sep_token_id]
										return cls + token_ids_a + sep + sep + token_ids_a + sep
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase     ,						_lowerCamelCase = None     ,						_lowerCamelCase = False					) ->       List[int]:




										'''simple docstring'''
										if already_has_special_tokens:
													return super().get_special_tokens_mask(
													    token_ids_a=_lowerCamelCase     ,						token_ids_a=_lowerCamelCase     ,						already_has_special_tokens=_lowerCamelCase					)

										if token_ids_a is None:
													return [1] + ([0] * len(_lowerCamelCase					)) + [1]
										return [1] + ([0] * len(_lowerCamelCase					)) + [1, 1] + ([0] * len(_lowerCamelCase					)) + [1]
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase     ,						_lowerCamelCase = None					) ->       List[int]:




										'''simple docstring'''
										__lowercase						      =					[self.sep_token_id]
										__lowercase						      =					[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      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase     ,						_lowerCamelCase=False     ,						**_lowerCamelCase					) ->       Optional[Any]:




										'''simple docstring'''
										__lowercase						      =					kwargs.pop("add_prefix_space"     ,						self.add_prefix_space					)
										if (is_split_into_words or add_prefix_space) and (len(_lowerCamelCase					) > 0 and not text[0].isspace()):
													__lowercase						      =					" " + text
										return (text, kwargs)







"""simple docstring"""






class 				__a    :



							'''simple docstring'''







							def __init__(    self     ,						_lowerCamelCase					) ->       Optional[Any]:




										'''simple docstring'''
										__lowercase						      =					data
										__lowercase						      =					None
										__lowercase						      =					None





							def __str__(    self					) ->       str:




										'''simple docstring'''
										return f'''{self.data}'''





class 				__a    :



							'''simple docstring'''







							def __init__(    self					) ->       List[str]:




										'''simple docstring'''
										__lowercase						      =					None
										__lowercase						      =					None
							def __iter__(    self					) ->       int:




										'''simple docstring'''
										__lowercase						      =					self.head
										while node:
													yield node.data
													__lowercase						      =					node.next
							def __str__(    self					) ->       Union[str, Any]:




										'''simple docstring'''
										return "->".join([str(_lowerCamelCase					) for item in self]					)
							def __len__(    self					) ->       Dict:




										'''simple docstring'''
										return sum(1 for _ in self					)
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase					) ->       Union[str, Any]:




										'''simple docstring'''
										self.insert_at_nth(0     ,						_lowerCamelCase					)
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase					) ->       List[str]:




										'''simple docstring'''
										self.insert_at_nth(len(self					)     ,						_lowerCamelCase					)
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase     ,						_lowerCamelCase					) ->       List[Any]:




										'''simple docstring'''
										__lowercase						      =					len(self					)

										if not 0 <= index <= length:
													raise IndexError("list index out of range"					)
										__lowercase						      =					Node(_lowerCamelCase					)
										if self.head is None:
													__lowercase						      =					__lowercase						      =					new_node
										elif index == 0:
													__lowercase						      =					new_node
													__lowercase						      =					self.head
													__lowercase						      =					new_node
										elif index == length:
													__lowercase						      =					new_node
													__lowercase						      =					self.tail
													__lowercase						      =					new_node
										else:
													__lowercase						      =					self.head
													for _ in range(0     ,						_lowerCamelCase					):
																__lowercase						      =					temp.next
													__lowercase						      =					new_node
													__lowercase						      =					temp.previous
													__lowercase						      =					temp
													__lowercase						      =					new_node
							def      SCREAMING_SNAKE_CASE	(    self					) ->       Any:




										'''simple docstring'''
										return self.delete_at_nth(0					)
							def      SCREAMING_SNAKE_CASE	(    self					) ->       str:




										'''simple docstring'''
										return self.delete_at_nth(len(self					) - 1					)
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase					) ->       str:




										'''simple docstring'''
										__lowercase						      =					len(self					)

										if not 0 <= index <= length - 1:
													raise IndexError("list index out of range"					)
										__lowercase						      =					self.head  # default first node
										if length == 1:
													__lowercase						      =					__lowercase						      =					None
										elif index == 0:
													__lowercase						      =					self.head.next
													__lowercase						      =					None
										elif index == length - 1:
													__lowercase						      =					self.tail
													__lowercase						      =					self.tail.previous
													__lowercase						      =					None
										else:
													__lowercase						      =					self.head
													for _ in range(0     ,						_lowerCamelCase					):
																__lowercase						      =					temp.next
													__lowercase						      =					temp
													__lowercase						      =					temp.previous
													__lowercase						      =					temp.next
										return delete_node.data
							def      SCREAMING_SNAKE_CASE	(    self     ,						_lowerCamelCase					) ->       str:




										'''simple docstring'''
										__lowercase						      =					self.head

										while current.data != data:  # Find the position to delete
													if current.next:
																__lowercase						      =					current.next
													else:  # We have reached the end an no value matches
																raise ValueError("No data matching given value"					)

										if current == self.head:
													self.delete_head()

										elif current == self.tail:
													self.delete_tail()

										else:  # Before: 1 <--> 2(current) <--> 3
													__lowercase						      =					current.next  # 1 --> 3
													__lowercase						      =					current.previous  # 1 <--> 3
										return data





							def      SCREAMING_SNAKE_CASE	(    self					) ->       Union[str, Any]:




										'''simple docstring'''
										return len(self					) == 0





def     lowerCAmelCase__ (		)	->None:
			__lowercase						      =					DoublyLinkedList()
			assert linked_list.is_empty() is True
			assert str(__magic_name__			) == ""

			try:
						linked_list.delete_head()
						raise AssertionError  # This should not happen.
			except IndexError:
						assert True  # This should happen.

			try:
						linked_list.delete_tail()
						raise AssertionError  # This should not happen.
			except IndexError:
						assert True  # This should happen.

			for i in range(1_0			):
						assert len(__magic_name__			) == i
						linked_list.insert_at_nth(__magic_name__ ,      i + 1			)
			assert str(__magic_name__			) == "->".join(str(__magic_name__			) for i in range(1 ,      1_1			)			)

			linked_list.insert_at_head(0			)
			linked_list.insert_at_tail(1_1			)
			assert str(__magic_name__			) == "->".join(str(__magic_name__			) for i in range(0 ,      1_2			)			)

			assert linked_list.delete_head() == 0
			assert linked_list.delete_at_nth(9			) == 1_0
			assert linked_list.delete_tail() == 1_1
			assert len(__magic_name__			) == 9
			assert str(__magic_name__			) == "->".join(str(__magic_name__			) for i in range(1 ,      1_0			)			)


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

					testmod()





