
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


_SCREAMING_SNAKE_CASE    :      Union[str, Any]          =			logging.get_logger(__name__)


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

_SCREAMING_SNAKE_CASE    :      Optional[Any]          =			{
    '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'
        ),
    },
}

_SCREAMING_SNAKE_CASE    :      Optional[Any]          =			{
    'allenai/longformer-base-4096': 4_0_9_6,
    'allenai/longformer-large-4096': 4_0_9_6,
    'allenai/longformer-large-4096-finetuned-triviaqa': 4_0_9_6,
    'allenai/longformer-base-4096-extra.pos.embd.only': 4_0_9_6,
    'allenai/longformer-large-4096-extra.pos.embd.only': 4_0_9_6,
}

@lru_cache()
# Copied from transformers.models.roberta.tokenization_roberta.bytes_to_unicode
def 				SCREAMING_SNAKE_CASE     (      ) ->       Optional[Any]:

				"""simple docstring"""







				A__  :	Union[str, Any]         =							(
				    list(range(ord('''!'''       )							,						ord('''~'''       ) + 1       )       ) + list(range(ord('''¡'''       )							,						ord('''¬'''       ) + 1       )       ) + list(range(ord('''®'''       )							,						ord('''ÿ'''       ) + 1       )       )
				)
				A__  :	str         =							bs[:]
				A__  :	Tuple         =							0
				for b in range(2**8       ):
								if b not in bs:
												bs.append(__UpperCamelCase       )
												cs.append(2**8 + n       )
												n += 1
				A__  :	List[Any]         =							[chr(__UpperCamelCase       ) for n in cs]
				return dict(zip(__UpperCamelCase							,						__UpperCamelCase       )       )

def 				SCREAMING_SNAKE_CASE     (      __UpperCamelCase :						Dict       ) ->       Any:

				"""simple docstring"""







				A__  :	Any         =							set()
				A__  :	Any         =							word[0]
				for char in word[1:]:
								pairs.add((prev_char, char)       )
								A__  :	int         =							char
				return pairs







class  UpperCamelCase__		(    SCREAMING_SNAKE_CASE_   ):







	'''simple docstring'''
	_lowerCAmelCase							       =				VOCAB_FILES_NAMES
	_lowerCAmelCase							       =				PRETRAINED_VOCAB_FILES_MAP
	_lowerCAmelCase							       =				PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
	_lowerCAmelCase							       =				["input_ids", "attention_mask"]





	def __init__(			self				,       UpperCamelCase__				,       UpperCamelCase__				,       UpperCamelCase__="replace"				,       UpperCamelCase__="<s>"				,       UpperCamelCase__="</s>"				,       UpperCamelCase__="</s>"				,       UpperCamelCase__="<s>"				,       UpperCamelCase__="<unk>"				,       UpperCamelCase__="<pad>"				,       UpperCamelCase__="<mask>"				,       UpperCamelCase__=False				,       **UpperCamelCase__				,       ):
					A__  :	str         =							AddedToken(UpperCamelCase__				,       lstrip=UpperCamelCase__				,       rstrip=UpperCamelCase__		) if isinstance(UpperCamelCase__				,       UpperCamelCase__		) else bos_token
					A__  :	Any         =							AddedToken(UpperCamelCase__				,       lstrip=UpperCamelCase__				,       rstrip=UpperCamelCase__		) if isinstance(UpperCamelCase__				,       UpperCamelCase__		) else eos_token
					A__  :	List[str]         =							AddedToken(UpperCamelCase__				,       lstrip=UpperCamelCase__				,       rstrip=UpperCamelCase__		) if isinstance(UpperCamelCase__				,       UpperCamelCase__		) else sep_token
					A__  :	Union[str, Any]         =							AddedToken(UpperCamelCase__				,       lstrip=UpperCamelCase__				,       rstrip=UpperCamelCase__		) if isinstance(UpperCamelCase__				,       UpperCamelCase__		) else cls_token
					A__  :	Dict         =							AddedToken(UpperCamelCase__				,       lstrip=UpperCamelCase__				,       rstrip=UpperCamelCase__		) if isinstance(UpperCamelCase__				,       UpperCamelCase__		) else unk_token
					A__  :	Optional[Any]         =							AddedToken(UpperCamelCase__				,       lstrip=UpperCamelCase__				,       rstrip=UpperCamelCase__		) if isinstance(UpperCamelCase__				,       UpperCamelCase__		) else pad_token

					# Mask token behave like a normal word, i.e. include the space before it
					A__  :	List[Any]         =							AddedToken(UpperCamelCase__				,       lstrip=UpperCamelCase__				,       rstrip=UpperCamelCase__		) if isinstance(UpperCamelCase__				,       UpperCamelCase__		) else mask_token

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

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

					# Should have added re.IGNORECASE so BPE merges can happen for capitalized versions of contractions
					A__  :	Dict         =							re.compile(r'''\'s|\'t|\'re|\'ve|\'m|\'ll|\'d| ?\p{L}+| ?\p{N}+| ?[^\s\p{L}\p{N}]+|\s+(?!\S)|\s+'''		)





	@property
	def   __snake_case				(			self		):
					return len(self.encoder		)





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





	def   __snake_case				(			self				,       UpperCamelCase__		):
					if token in self.cache:
									return self.cache[token]
					A__  :	List[str]         =							tuple(UpperCamelCase__		)
					A__  :	Union[str, Any]         =							get_pairs(UpperCamelCase__		)

					if not pairs:
									return token

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

													if word[i] == first and i < len(UpperCamelCase__		) - 1 and word[i + 1] == second:
																	new_word.append(first + second		)
																	i += 2
													else:
																	new_word.append(word[i]		)
																	i += 1
									A__  :	List[str]         =							tuple(UpperCamelCase__		)
									A__  :	Union[str, Any]         =							new_word
									if len(UpperCamelCase__		) == 1:
													break
									else:
													A__  :	Union[str, Any]         =							get_pairs(UpperCamelCase__		)
					A__  :	Optional[int]         =							''' '''.join(UpperCamelCase__		)
					A__  :	Any         =							word
					return word





	def   __snake_case				(			self				,       UpperCamelCase__		):
					A__  :	str         =							[]
					for token in re.findall(self.pat				,       UpperCamelCase__		):
									A__  :	int         =							''''''.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(UpperCamelCase__		).split(''' '''		)		)
					return bpe_tokens





	def   __snake_case				(			self				,       UpperCamelCase__		):
					return self.encoder.get(UpperCamelCase__				,       self.encoder.get(self.unk_token		)		)





	def   __snake_case				(			self				,       UpperCamelCase__		):
					return self.decoder.get(UpperCamelCase__		)





	def   __snake_case				(			self				,       UpperCamelCase__		):
					A__  :	str         =							''''''.join(UpperCamelCase__		)
					A__  :	int         =							bytearray([self.byte_decoder[c] for c in text]		).decode('''utf-8'''				,       errors=self.errors		)
					return text





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

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

					A__  :	Tuple         =							0
					with open(UpperCamelCase__				,       '''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 UpperCamelCase__		: 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!'''		)
																	A__  :	Optional[int]         =							token_index
													writer.write(''' '''.join(UpperCamelCase__		) + '''\n'''		)
													index += 1

					return vocab_file, merge_file





	def   __snake_case				(			self				,       UpperCamelCase__				,       UpperCamelCase__ = None		):
					if token_ids_a is None:
									return [self.cls_token_id] + token_ids_a + [self.sep_token_id]
					A__  :	List[str]         =							[self.cls_token_id]
					A__  :	List[Any]         =							[self.sep_token_id]
					return cls + token_ids_a + sep + sep + token_ids_a + sep





	def   __snake_case				(			self				,       UpperCamelCase__				,       UpperCamelCase__ = None				,       UpperCamelCase__ = False		):
					if already_has_special_tokens:
									return super().get_special_tokens_mask(
									    token_ids_a=UpperCamelCase__				,       token_ids_a=UpperCamelCase__				,       already_has_special_tokens=UpperCamelCase__		)

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





	def   __snake_case				(			self				,       UpperCamelCase__				,       UpperCamelCase__ = None		):
					A__  :	Any         =							[self.sep_token_id]
					A__  :	List[str]         =							[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   __snake_case				(			self				,       UpperCamelCase__				,       UpperCamelCase__=False				,       **UpperCamelCase__		):
					A__  :	int         =							kwargs.pop('''add_prefix_space'''				,       self.add_prefix_space		)
					if (is_split_into_words or add_prefix_space) and (len(UpperCamelCase__		) > 0 and not text[0].isspace()):
									A__  :	List[Any]         =							''' ''' + text
					return (text, kwargs)

from abc import ABC, abstractmethod
from argparse import ArgumentParser







class  UpperCamelCase__		(    SCREAMING_SNAKE_CASE_   ):







	'''simple docstring'''





	@staticmethod
	@abstractmethod
	def   __snake_case				(			UpperCamelCase__		):
					raise NotImplementedError()





	@abstractmethod
	def   __snake_case				(			self		):
					raise NotImplementedError()