

def       __lowerCAmelCase      (						A       ,     A = " "    ):
	UpperCAmelCase_       				=			[]

	UpperCAmelCase_       				=			0
	for index, char in enumerate(A    ):
		if char == separator:
			split_words.append(string[last_index:index]    )
			UpperCAmelCase_       				=			index + 1
		elif index + 1 == len(A    ):
			split_words.append(string[last_index : index + 1]    )
	return split_words


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

					testmod()


import warnings
from typing import Dict, List, Optional, Tuple

from ...tokenization_utils import AddedToken, PreTrainedTokenizer
from ...utils import logging


_a:    Dict 							=			logging.get_logger(__name__)

class 						__UpperCamelCase    (					lowercase						):
	SCREAMING_SNAKE_CASE__    				=     ['input_ids', 'attention_mask']




	def __init__(		self	:						Tuple		,	lowerCAmelCase	:						Union[str, Any]="</s>"		,	lowerCAmelCase	:						str="<unk>"		,	lowerCAmelCase	:						Optional[int]="<pad>"		,	lowerCAmelCase	:						List[str]=125		,	lowerCAmelCase	:						List[Any]=None		,	**lowerCAmelCase	:						Optional[Any]		,	):


		'''simple docstring'''







		if extra_ids > 0 and additional_special_tokens is None:
			UpperCAmelCase_       				=			[F"<extra_id_{i}>" for i in range(lowerCAmelCase							)]
		elif extra_ids > 0 and additional_special_tokens is not None:
			# Check that we have the right number of extra_id special tokens
			UpperCAmelCase_       				=			len(set(filter(lambda lowerCAmelCase							: bool("extra_id" in str(lowerCAmelCase							)							)		,	lowerCAmelCase							)							)							)
			if extra_tokens != extra_ids:
				raise ValueError(
				    F"Both extra_ids ({extra_ids}) and additional_special_tokens ({additional_special_tokens}) are"
				    " provided to ByT5Tokenizer. In this case the additional_special_tokens must include the"
				    " extra_ids tokens"							)

		UpperCAmelCase_       				=			AddedToken(lowerCAmelCase		,	lstrip=lowerCAmelCase		,	rstrip=lowerCAmelCase							) if isinstance(lowerCAmelCase		,	lowerCAmelCase							) else pad_token
		UpperCAmelCase_       				=			AddedToken(lowerCAmelCase		,	lstrip=lowerCAmelCase		,	rstrip=lowerCAmelCase							) if isinstance(lowerCAmelCase		,	lowerCAmelCase							) else eos_token
		UpperCAmelCase_       				=			AddedToken(lowerCAmelCase		,	lstrip=lowerCAmelCase		,	rstrip=lowerCAmelCase							) if isinstance(lowerCAmelCase		,	lowerCAmelCase							) else unk_token

		super().__init__(
		    eos_token=lowerCAmelCase		,	unk_token=lowerCAmelCase		,	pad_token=lowerCAmelCase		,	extra_ids=lowerCAmelCase		,	additional_special_tokens=lowerCAmelCase		,	**lowerCAmelCase		,	)

		UpperCAmelCase_       				=			extra_ids

		UpperCAmelCase_       				=			2**8  # utf is 8 bits

		# define special tokens dict
		UpperCAmelCase_       				=			{
		    self.pad_token: 0,
		    self.eos_token: 1,
		    self.unk_token: 2,
		}
		UpperCAmelCase_       				=			len(self.special_tokens_encoder							)
		UpperCAmelCase_       				=			len(lowerCAmelCase							)
		for i, token in enumerate(lowerCAmelCase							):
			UpperCAmelCase_       				=			self.vocab_size + i - n
		UpperCAmelCase_       				=			{v: k for k, v in self.special_tokens_encoder.items()}




	@property
	def       __A					(		self	:						Optional[Any]							):


		'''simple docstring'''







		return self._utf_vocab_size + self._num_special_tokens + self._extra_ids




	def       __A					(		self	:						List[Any]		,	lowerCAmelCase	:						List[int]		,	lowerCAmelCase	:						Optional[List[int]] = None		,	lowerCAmelCase	:						bool = False							):


		'''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							)

		# normal case: some special tokens
		if token_ids_a is None:
			return ([0] * len(lowerCAmelCase							)) + [1]
		return ([0] * len(lowerCAmelCase							)) + [1] + ([0] * len(lowerCAmelCase							)) + [1]




	def       __A					(		self	:						Any		,	lowerCAmelCase	:						List[int]							):


		'''simple docstring'''







		if len(lowerCAmelCase							) > 0 and token_ids[-1] == self.eos_token_id:
			warnings.warn(
			    F"This sequence already has {self.eos_token}. In future versions this behavior may lead to duplicated"
			    " eos tokens being added."							)
			return token_ids
		else:
			return token_ids + [self.eos_token_id]




	def       __A					(		self	:						Optional[Any]		,	lowerCAmelCase	:						List[int]		,	lowerCAmelCase	:						Optional[List[int]] = None							):


		'''simple docstring'''







		UpperCAmelCase_       				=			[self.eos_token_id]

		if token_ids_a is None:
			return len(token_ids_a + eos							) * [0]
		return len(token_ids_a + eos + token_ids_a + eos							) * [0]




	def       __A					(		self	:						Tuple		,	lowerCAmelCase	:						List[int]		,	lowerCAmelCase	:						Optional[List[int]] = None							):


		'''simple docstring'''







		UpperCAmelCase_       				=			self._add_eos_if_not_present(lowerCAmelCase							)
		if token_ids_a is None:
			return token_ids_a
		else:
			UpperCAmelCase_       				=			self._add_eos_if_not_present(lowerCAmelCase							)
			return token_ids_a + token_ids_a




	def       __A					(		self	:						List[str]		,	lowerCAmelCase	:						str							):


		'''simple docstring'''







		UpperCAmelCase_       				=			[chr(lowerCAmelCase							) for i in text.encode("utf-8"							)]
		return tokens




	def       __A					(		self	:						Optional[Any]		,	lowerCAmelCase	:						List[Any]							):


		'''simple docstring'''







		if token in self.special_tokens_encoder:
			UpperCAmelCase_       				=			self.special_tokens_encoder[token]
		elif token in self.added_tokens_encoder:
			UpperCAmelCase_       				=			self.added_tokens_encoder[token]
		elif len(lowerCAmelCase							) != 1:
			UpperCAmelCase_       				=			self.unk_token_id
		else:
			UpperCAmelCase_       				=			ord(lowerCAmelCase							) + self._num_special_tokens
		return token_id




	def       __A					(		self	:						str		,	lowerCAmelCase	:						Any							):


		'''simple docstring'''







		if index in self.special_tokens_decoder:
			UpperCAmelCase_       				=			self.special_tokens_decoder[index]
		else:
			UpperCAmelCase_       				=			chr(index - self._num_special_tokens							)
		return token




	def       __A					(		self	:						Union[str, Any]		,	lowerCAmelCase	:						Union[str, Any]							):


		'''simple docstring'''







		UpperCAmelCase_       				=			b""
		for token in tokens:
			if token in self.special_tokens_decoder:
				UpperCAmelCase_       				=			self.special_tokens_decoder[token].encode("utf-8"							)
			elif token in self.added_tokens_decoder:
				UpperCAmelCase_       				=			self.special_tokens_decoder[token].encode("utf-8"							)
			elif token in self.special_tokens_encoder:
				UpperCAmelCase_       				=			token.encode("utf-8"							)
			elif token in self.added_tokens_encoder:
				UpperCAmelCase_       				=			token.encode("utf-8"							)
			else:
				UpperCAmelCase_       				=			bytes([ord(lowerCAmelCase							)]							)
			bstring += tok_string
		UpperCAmelCase_       				=			bstring.decode("utf-8"		,	errors="ignore"							)
		return string




	def       __A					(		self	:						List[Any]		,	lowerCAmelCase	:						str		,	lowerCAmelCase	:						Optional[str] = None							):


		'''simple docstring'''







		return ()