




'''simple docstring'''





import json
import os
from functools import lru_cache
from typing import TYPE_CHECKING, List, Optional, Tuple

import regex as re

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


if TYPE_CHECKING:
       from transformers.pipelines.conversational import Conversation

A			=	logging.get_logger(__name__)

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

A			=	{
    '''vocab_file''': {
        '''gpt2''': '''https://huggingface.co/gpt2/resolve/main/vocab.json''',
        '''gpt2-medium''': '''https://huggingface.co/gpt2-medium/resolve/main/vocab.json''',
        '''gpt2-large''': '''https://huggingface.co/gpt2-large/resolve/main/vocab.json''',
        '''gpt2-xl''': '''https://huggingface.co/gpt2-xl/resolve/main/vocab.json''',
        '''distilgpt2''': '''https://huggingface.co/distilgpt2/resolve/main/vocab.json''',
    },
    '''merges_file''': {
        '''gpt2''': '''https://huggingface.co/gpt2/resolve/main/merges.txt''',
        '''gpt2-medium''': '''https://huggingface.co/gpt2-medium/resolve/main/merges.txt''',
        '''gpt2-large''': '''https://huggingface.co/gpt2-large/resolve/main/merges.txt''',
        '''gpt2-xl''': '''https://huggingface.co/gpt2-xl/resolve/main/merges.txt''',
        '''distilgpt2''': '''https://huggingface.co/distilgpt2/resolve/main/merges.txt''',
    },
}

A			=	{
    '''gpt2''': 1_0_2_4,
    '''gpt2-medium''': 1_0_2_4,
    '''gpt2-large''': 1_0_2_4,
    '''gpt2-xl''': 1_0_2_4,
    '''distilgpt2''': 1_0_2_4,
}


@lru_cache()
def 				UpperCamelCase	(  ):




   '''simple docstring'''

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


def 				UpperCamelCase	(  snake_case   ):




   '''simple docstring'''

   SCREAMING_SNAKE_CASE__			:				str       						= set()
   SCREAMING_SNAKE_CASE__			:				str       						= word[0]
   for char in word[1:]:
      pairs.add((prev_char, char)   )
      SCREAMING_SNAKE_CASE__			:				List[str]       						= char
   return pairs







class 						lowercase     (   UpperCAmelCase_):
      __lowercase 		=  VOCAB_FILES_NAMES
      __lowercase 		=  PRETRAINED_VOCAB_FILES_MAP
      __lowercase 		=  PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
      __lowercase 		=  ['''input_ids''', '''attention_mask''']






      def __init__(self ,  a__ ,  a__ ,  a__="replace" ,  a__="<|endoftext|>" ,  a__="<|endoftext|>" ,  a__="<|endoftext|>" ,  a__=None ,  a__=False ,  a__=False ,  **a__ ,  )       ->   Union[str, Any]:
         SCREAMING_SNAKE_CASE__			:				Any       						= AddedToken(a__ ,  lstrip=a__ ,  rstrip=a__					) if isinstance(a__ ,  a__					) else bos_token
         SCREAMING_SNAKE_CASE__			:				Union[str, Any]       						= AddedToken(a__ ,  lstrip=a__ ,  rstrip=a__					) if isinstance(a__ ,  a__					) else eos_token
         SCREAMING_SNAKE_CASE__			:				Dict       						= AddedToken(a__ ,  lstrip=a__ ,  rstrip=a__					) if isinstance(a__ ,  a__					) else unk_token
         SCREAMING_SNAKE_CASE__			:				Tuple       						= AddedToken(a__ ,  lstrip=a__ ,  rstrip=a__					) if isinstance(a__ ,  a__					) else pad_token
         super().__init__(
             errors=a__ ,  unk_token=a__ ,  bos_token=a__ ,  eos_token=a__ ,  pad_token=a__ ,  add_prefix_space=a__ ,  add_bos_token=a__ ,  **a__ ,  )
         SCREAMING_SNAKE_CASE__			:				Dict       						= add_bos_token

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

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






      @property
      def    A__(self					)       ->   Dict:
         return len(self.encoder					)






      def    A__(self					)       ->   Dict:
         return dict(self.encoder ,  **self.added_tokens_encoder					)






      def    A__(self ,  a__					)       ->   Tuple:
         if token in self.cache:
            return self.cache[token]
         SCREAMING_SNAKE_CASE__			:				int       						= tuple(a__					)
         SCREAMING_SNAKE_CASE__			:				List[Any]       						= get_pairs(a__					)

         if not pairs:
            return token

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

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






      def    A__(self ,  a__ ,  a__=None					)       ->   int:
         if self.add_bos_token:
            SCREAMING_SNAKE_CASE__			:				Optional[Any]       						= [self.bos_token_id]
         else:
            SCREAMING_SNAKE_CASE__			:				List[str]       						= []

         SCREAMING_SNAKE_CASE__			:				List[Any]       						= bos_token_ids + token_ids_a

         if token_ids_a is None:
            return output

         return output + bos_token_ids + token_ids_a






      def    A__(self ,  a__ ,  a__ = None ,  a__ = False					)       ->   List[int]:
         if already_has_special_tokens:
            return super().get_special_tokens_mask(
                token_ids_a=a__ ,  token_ids_a=a__ ,  already_has_special_tokens=a__					)

         if not self.add_bos_token:
            return super().get_special_tokens_mask(
                token_ids_a=a__ ,  token_ids_a=a__ ,  already_has_special_tokens=a__					)

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






      def    A__(self ,  a__					)       ->   List[Any]:
         SCREAMING_SNAKE_CASE__			:				Optional[Any]       						= []
         for token in re.findall(self.pat ,  a__					):
            SCREAMING_SNAKE_CASE__			:				Any       						= ''''''.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(a__					).split(''' '''					)					)
         return bpe_tokens






      def    A__(self ,  a__					)       ->   Optional[int]:
         return self.encoder.get(a__ ,  self.encoder.get(self.unk_token					)					)






      def    A__(self ,  a__					)       ->   Dict:
         return self.decoder.get(a__					)






      def    A__(self ,  a__					)       ->   Union[str, Any]:
         SCREAMING_SNAKE_CASE__			:				Union[str, Any]       						= ''''''.join(a__					)
         SCREAMING_SNAKE_CASE__			:				int       						= bytearray([self.byte_decoder[c] for c in text]					).decode('''utf-8''' ,  errors=self.errors					)
         return text






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

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

         SCREAMING_SNAKE_CASE__			:				int       						= 0
         with open(a__ ,  '''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 a__					: 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!'''					)
                  SCREAMING_SNAKE_CASE__			:				Any       						= token_index
               writer.write(''' '''.join(a__					) + '''\n'''					)
               index += 1

         return vocab_file, merge_file






      def    A__(self ,  a__ ,  a__=False ,  **a__					)       ->   str:
         SCREAMING_SNAKE_CASE__			:				Dict       						= kwargs.pop('''add_prefix_space''' ,  self.add_prefix_space					)
         if is_split_into_words or add_prefix_space:
            SCREAMING_SNAKE_CASE__			:				Any       						= ''' ''' + text
         return (text, kwargs)






      def    A__(self ,  a__					)       ->   List[int]:
         SCREAMING_SNAKE_CASE__			:				int       						= []
         for is_user, text in conversation.iter_texts():
            input_ids.extend(self.encode(a__ ,  add_special_tokens=a__					) + [self.eos_token_id]					)
         if len(a__					) > self.model_max_length:
            SCREAMING_SNAKE_CASE__			:				Optional[Any]       						= input_ids[-self.model_max_length :]
         return input_ids







'''simple docstring'''





lowercase__			=	{
    '''+''': lambda x, y: x + y,
    '''-''': lambda x, y: x - y,
    '''*''': lambda x, y: x * y,
    '''/''': lambda x, y: x / y,
}


def 				UpperCamelCase	(  snake_case   ):




   '''simple docstring'''

   return c.isdigit()


def 				UpperCamelCase	(  snake_case   ):




   '''simple docstring'''

   SCREAMING_SNAKE_CASE__			:				Union[str, Any]       						= []

   # iterate over the string in reverse order
   for c in expression.split()[::-1]:
      # push operand to stack
      if is_operand(snake_case   ):
         stack.append(int(snake_case   )   )

      else:
         # pop values from stack can calculate the result
         # push the result onto the stack again
         SCREAMING_SNAKE_CASE__			:				Dict       						= stack.pop()
         SCREAMING_SNAKE_CASE__			:				Any       						= stack.pop()
         stack.append(calc[c](snake_case	,     snake_case   )   )

   return stack.pop()


# Driver code
if __name__ == "__main__":
       lowercase__			=	'''+ 9 * 2 6'''
       print(evaluate(test_expression))

       lowercase__			=	'''/ * 10 2 + 4 1 '''
       print(evaluate(test_expression))

