




"""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:
			lowercase__			=		None


lowercase__			=		logging.get_logger(__name__)


lowercase__			=		"""▁"""

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

lowercase__			=		{
    """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"""
    },
}

lowercase__			=		{
    """google/pegasus-xsum""": 512,
}






class lowerCAmelCase__      (	lowercase		):






			'''simple docstring'''



			lowerCamelCase__ =     VOCAB_FILES_NAMES
			lowerCamelCase__ =     PRETRAINED_VOCAB_FILES_MAP
			lowerCamelCase__ =     PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
			lowerCamelCase__ =     PegasusTokenizer
			lowerCamelCase__ =     ["""input_ids""", """attention_mask"""]
			def __init__(    self    , lowercase=None    , lowercase=None    , lowercase="<pad>"    , lowercase="</s>"    , lowercase="<unk>"    , lowercase="<mask_2>"    , lowercase="<mask_1>"    , lowercase=None    , lowercase=103    , **lowercase    , ):
							_lowerCamelCase	:     List[Any]       =       offset

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

											_lowerCamelCase	:     Tuple       =       (
											    ([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(lowercase    )    , self.offset - 1    )
											]

											if len(set(lowercase    )    ) != len(lowercase    ):
															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}.'''    )
											_lowerCamelCase	:     List[Any]       =       additional_special_tokens_extended
							else:
											_lowerCamelCase	:     Dict       =       [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__(
							    lowercase    , tokenizer_file=lowercase    , pad_token=lowercase    , eos_token=lowercase    , unk_token=lowercase    , mask_token=lowercase    , mask_token_sent=lowercase    , offset=lowercase    , additional_special_tokens=lowercase    , **lowercase    , )
							_lowerCamelCase	:     str       =       vocab_file
							_lowerCamelCase	:     Optional[Any]       =       False if not self.vocab_file else True
			def    A_       (    self    , lowercase    ):
							_lowerCamelCase	:     Dict       =       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    A_       (    self    , lowercase    , lowercase = None    , lowercase = False    ):
							if already_has_special_tokens:
											return self._special_token_mask(lowercase    )
							elif token_ids_a is None:
											return self._special_token_mask(lowercase    ) + [1]
							else:
											return self._special_token_mask(token_ids_a + token_ids_a    ) + [1]
			def    A_       (    self    , lowercase    , lowercase=None    ):
							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    A_       (    self    , lowercase    , lowercase = None    ):
							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(lowercase    ):
											logger.error(F'''Vocabulary path ({save_directory}) should be a directory'''    )
											return
							_lowerCamelCase	:     Optional[int]       =       os.path.join(
							    lowercase    , (filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab_file']    )

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

							return (out_vocab_file,)





"""simple docstring"""






import operator as op







def 	_snake_case     (							lowercase__						):
				_lowerCamelCase	:     Dict       =       []
				_lowerCamelCase	:     List[str]       =       lambda lowercase__				,       lowercase__						: int(x / y						)  # noqa: E731 integer division operation
				_lowerCamelCase	:     Optional[int]       =       {
				    '^': op.pow,
				    '*': op.mul,
				    '/': div,
				    '+': op.add,
				    '-': op.sub,
				}  # operators & their respective operation

				# print table header
				print('Symbol'.center(8						)				,       'Action'.center(12						)				,       'Stack'				,       sep=' | '						)
				print('-' * (30 + len(lowercase__						))						)

				for x in post_fix:
								if x.isdigit():  # if x in digit
												stack.append(lowercase__						)  # append x to stack
												# output in tabular format
												print(x.rjust(8						)				,       ('push(' + x + ')').ljust(12						)				,       ','.join(lowercase__						)				,       sep=' | '						)
								else:
												_lowerCamelCase	:     int       =       stack.pop()  # pop stack
												# output in tabular format
												print(''.rjust(8						)				,       ('pop(' + b + ')').ljust(12						)				,       ','.join(lowercase__						)				,       sep=' | '						)

												_lowerCamelCase	:     Tuple       =       stack.pop()  # pop stack
												# output in tabular format
												print(''.rjust(8						)				,       ('pop(' + a + ')').ljust(12						)				,       ','.join(lowercase__						)				,       sep=' | '						)

												stack.append(
												    str(opr[x](int(lowercase__						)				,       int(lowercase__						)						)						)						)  # evaluate the 2 values popped from stack & push result to stack
												# output in tabular format
												print(
												    x.rjust(8						)				,       ('push(' + a + x + b + ')').ljust(12						)				,       ','.join(lowercase__						)				,       sep=' | '				,       )

				return int(stack[0]						)


if __name__ == "__main__":
			lowercase__			=		input("""\n\nEnter a Postfix Equation (space separated) = """).split(""" """)
			print("""\n\tResult = """, solve(Postfix))