
"""simple docstring"""


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

from ...tokenization_utils_fast import PreTrainedTokenizerFast
from ...utils import is_sentencepiece_available, logging


if is_sentencepiece_available():
					from .tokenization_pegasus import PegasusTokenizer
else:
					__A   :							List[Any]										=   None


__A   :							Any										=   logging.get_logger(__name__)


__A   :							int										=   "▁"

__A   :							Any										=   {"vocab_file": "spiece.model", "tokenizer_file": "tokenizer.json"}

__A   :							List[Any]										=   {
    "vocab_file": {"google/pegasus-xsum": "https://huggingface.co/google/pegasus-xsum/resolve/main/spiece.model"},
    "tokenizer_file": {
        "google/pegasus-xsum": "https://huggingface.co/google/pegasus-xsum/resolve/main/tokenizer.json"
    },
}

__A   :							Optional[int]										=   {
    "google/pegasus-xsum": 512,
}
class 			_a (					lowerCAmelCase):
			"""simple docstring"""
			UpperCamelCase__			      =	VOCAB_FILES_NAMES
			UpperCamelCase__			      =	PRETRAINED_VOCAB_FILES_MAP
			UpperCamelCase__			      =	PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
			UpperCamelCase__			      =	PegasusTokenizer
			UpperCamelCase__			      =	["""input_ids""", """attention_mask"""]



			def __init__(		self     :    List[str]				,   __UpperCamelCase     :    Dict=None				,   __UpperCamelCase     :    Dict=None				,   __UpperCamelCase     :    Optional[Any]="<pad>"				,   __UpperCamelCase     :    str="</s>"				,   __UpperCamelCase     :    Union[str, Any]="<unk>"				,   __UpperCamelCase     :    Tuple="<mask_2>"				,   __UpperCamelCase     :    int="<mask_1>"				,   __UpperCamelCase     :    str=None				,   __UpperCamelCase     :    List[str]=1_0_3				,   **__UpperCamelCase     :    int				,   )->Optional[int]:
							_UpperCAmelCase					=    offset

							if additional_special_tokens is not None:
											if not isinstance(UpperCAmelCase__				,   UpperCAmelCase__   ):
															raise TypeError(
															    F'additional_special_tokens should be of type {type(UpperCAmelCase__   )}, but is'
															    F' {type(UpperCAmelCase__   )}'   )

											_UpperCAmelCase					=    (
											    ([mask_token_sent] + additional_special_tokens)
											    if mask_token_sent not in additional_special_tokens and mask_token_sent is not None
											    else additional_special_tokens
											)
											# fill additional tokens with ..., <unk_token_102> in case not all additional tokens are already taken
											additional_special_tokens_extended += [
											    F'<unk_{i}>' for i in range(len(UpperCAmelCase__   )				,   self.offset - 1   )
											]

											if len(set(UpperCAmelCase__   )   ) != len(UpperCAmelCase__   ):
															raise ValueError(
															    '''Please make sure that the provided additional_special_tokens do not contain an incorrectly'''
															    F' shifted list of <unk_x> tokens. Found {additional_special_tokens_extended}.'   )
											_UpperCAmelCase					=    additional_special_tokens_extended
							else:
											_UpperCAmelCase					=    [mask_token_sent] if mask_token_sent is not None else []
											additional_special_tokens += [F'<unk_{i}>' for i in range(2				,   self.offset   )]

							super().__init__(
							    UpperCAmelCase__				,   tokenizer_file=UpperCAmelCase__				,   pad_token=UpperCAmelCase__				,   eos_token=UpperCAmelCase__				,   unk_token=UpperCAmelCase__				,   mask_token=UpperCAmelCase__				,   mask_token_sent=UpperCAmelCase__				,   offset=UpperCAmelCase__				,   additional_special_tokens=UpperCAmelCase__				,   **UpperCAmelCase__				,   )
							_UpperCAmelCase					=    vocab_file
							_UpperCAmelCase					=    False if not self.vocab_file else True



			def  lowercase__						(		self     :    List[str]				,   __UpperCamelCase     :    Tuple   )->Optional[Any]:
							_UpperCAmelCase					=    set(self.all_special_ids   )  # call it once instead of inside list comp
							all_special_ids.remove(self.unk_token_id   )  # <unk> is only sometimes special

							if all_special_ids != set(range(len(self.additional_special_tokens   ) + 3   )   ):
											raise ValueError(
											    '''There should be 3 special tokens: mask_token, pad_token, and eos_token +'''
											    F' {len(self.additional_special_tokens   )} additional_special_tokens, but got {all_special_ids}'   )

							return [1 if x in all_special_ids else 0 for x in seq]



			def  lowercase__						(		self     :    int				,   __UpperCamelCase     :    List				,   __UpperCamelCase     :    Optional[List] = None				,   __UpperCamelCase     :    bool = False   )->List[int]:
							if already_has_special_tokens:
											return self._special_token_mask(UpperCAmelCase__   )
							elif token_ids_a is None:
											return self._special_token_mask(UpperCAmelCase__   ) + [1]
							else:
											return self._special_token_mask(token_ids_a + token_ids_a   ) + [1]



			def  lowercase__						(		self     :    List[Any]				,   __UpperCamelCase     :    Optional[Any]				,   __UpperCamelCase     :    Tuple=None   )->List[int]:
							if token_ids_a is None:
											return token_ids_a + [self.eos_token_id]
							# We don't expect to process pairs, but leave the pair logic for API consistency
							return token_ids_a + token_ids_a + [self.eos_token_id]



			def  lowercase__						(		self     :    Dict				,   __UpperCamelCase     :    str				,   __UpperCamelCase     :    Optional[str] = None   )->Tuple[str]:
							if not self.can_save_slow_tokenizer:
											raise ValueError(
											    '''Your fast tokenizer does not have the necessary information to save the vocabulary for a slow '''
											    '''tokenizer.'''   )

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

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

							return (out_vocab_file,)








"""simple docstring"""


class 			_a :
			"""simple docstring"""



			def __init__(		self     :    Tuple				,   __UpperCamelCase     :    list[int]   )->None:
							_UpperCAmelCase					=    len(__UpperCamelCase   )
							_UpperCAmelCase					=    [0] * len_array

							if len_array > 0:
											_UpperCAmelCase					=    array[0]

							for i in range(1				,   __UpperCamelCase   ):
											_UpperCAmelCase					=    self.prefix_sum[i - 1] + array[i]



			def  lowercase__						(		self     :    str				,   __UpperCamelCase     :    int				,   __UpperCamelCase     :    int   )->int:
							if start == 0:
											return self.prefix_sum[end]

							return self.prefix_sum[end] - self.prefix_sum[start - 1]



			def  lowercase__						(		self     :    Any				,   __UpperCamelCase     :    int   )->bool:
							_UpperCAmelCase					=    {0}
							for sum_item in self.prefix_sum:
											if sum_item - target_sum in sums:
															return True

											sums.add(__UpperCamelCase   )

							return False


if __name__ == "__main__":
					import doctest

					doctest.testmod()



