import itertools
import string
from collections.abc import Generator, Iterable






def 				__lowerCamelCase		(						lowerCAmelCase__     ,  lowerCAmelCase__     ):
       lowerCAmelCase__					     = iter(lowerCAmelCase__     )
       while True:
              lowerCAmelCase__					     = tuple(itertools.islice(lowerCAmelCase__     ,  lowerCAmelCase__     )     )
              if not chunk:
                     return
              yield chunk






def 				__lowerCamelCase		(						lowerCAmelCase__     ):
       lowerCAmelCase__					     = ''.join([c.upper() for c in dirty if c in string.ascii_letters]     )
       lowerCAmelCase__					     = ''

       if len(lowerCAmelCase__     ) < 2:
              return dirty

       for i in range(len(lowerCAmelCase__     ) - 1     ):
              clean += dirty[i]

              if dirty[i] == dirty[i + 1]:
                     clean += "X"

       clean += dirty[-1]

       if len(lowerCAmelCase__     ) & 1:
              clean += "X"

       return clean






def 				__lowerCamelCase		(						lowerCAmelCase__     ):
       # I and J are used interchangeably to allow
       # us to use a 5x5 table (25 letters)
       lowerCAmelCase__					     = 'ABCDEFGHIKLMNOPQRSTUVWXYZ'
       # we're using a list instead of a '2d' array because it makes the math
       # for setting up the table and doing the actual encoding/decoding simpler
       lowerCAmelCase__					     = []

       # copy key chars into the table if they are in `alphabet` ignoring duplicates
       for char in key.upper():
              if char not in table and char in alphabet:
                     table.append(lowerCAmelCase__     )

    # fill the rest of the table in with the remaining alphabet chars
       for char in alphabet:
              if char not in table:
                     table.append(lowerCAmelCase__     )

       return table






def 				__lowerCamelCase		(						lowerCAmelCase__     ,  lowerCAmelCase__     ):
       lowerCAmelCase__					     = generate_table(lowerCAmelCase__     )
       lowerCAmelCase__					     = prepare_input(lowerCAmelCase__     )
       lowerCAmelCase__					     = ''

       # https://en.wikipedia.org/wiki/Playfair_cipher#Description
       for chara, chara in chunker(lowerCAmelCase__     ,  2     ):
              lowerCAmelCase__     , lowerCAmelCase__					     = divmod(table.index(lowerCAmelCase__     )     ,  5     )
              lowerCAmelCase__     , lowerCAmelCase__					     = divmod(table.index(lowerCAmelCase__     )     ,  5     )

              if rowa == rowa:
                     ciphertext += table[rowa * 5 + (cola + 1) % 5]
                     ciphertext += table[rowa * 5 + (cola + 1) % 5]
              elif cola == cola:
                     ciphertext += table[((rowa + 1) % 5) * 5 + cola]
                     ciphertext += table[((rowa + 1) % 5) * 5 + cola]
              else:  # rectangle
                     ciphertext += table[rowa * 5 + cola]
                     ciphertext += table[rowa * 5 + cola]

       return ciphertext






def 				__lowerCamelCase		(						lowerCAmelCase__     ,  lowerCAmelCase__     ):
       lowerCAmelCase__					     = generate_table(lowerCAmelCase__     )
       lowerCAmelCase__					     = ''

       # https://en.wikipedia.org/wiki/Playfair_cipher#Description
       for chara, chara in chunker(lowerCAmelCase__     ,  2     ):
              lowerCAmelCase__     , lowerCAmelCase__					     = divmod(table.index(lowerCAmelCase__     )     ,  5     )
              lowerCAmelCase__     , lowerCAmelCase__					     = divmod(table.index(lowerCAmelCase__     )     ,  5     )

              if rowa == rowa:
                     plaintext += table[rowa * 5 + (cola - 1) % 5]
                     plaintext += table[rowa * 5 + (cola - 1) % 5]
              elif cola == cola:
                     plaintext += table[((rowa - 1) % 5) * 5 + cola]
                     plaintext += table[((rowa - 1) % 5) * 5 + cola]
              else:  # rectangle
                     plaintext += table[rowa * 5 + cola]
                     plaintext += table[rowa * 5 + cola]

       return plaintext

from typing import Optional

import pyspark

from .. import Features, NamedSplit
from ..download import DownloadMode
from ..packaged_modules.spark.spark import Spark
from .abc import AbstractDatasetReader
class     a_			(						SCREAMING_SNAKE_CASE						):






 '''simple docstring'''






 def __init__(      self :  str      ,   lowercase__ :  pyspark.sql.DataFrame      ,   lowercase__ :  Optional[NamedSplit] = None      ,   lowercase__ :  Optional[Features] = None      ,   lowercase__ :  bool = True      ,   lowercase__ :  str = None      ,   lowercase__ :  bool = False      ,   lowercase__ :  str = None      ,   lowercase__ :  bool = True      ,   lowercase__ :  str = "arrow"      ,   **lowercase__ :  Any      ,   ):







        '''simple docstring'''



        super().__init__(
            split=lowercase__      ,   features=lowercase__      ,   cache_dir=lowercase__      ,   keep_in_memory=lowercase__      ,   streaming=lowercase__      ,   **lowercase__      ,   )
        lowerCAmelCase__					     = load_from_cache_file
        lowerCAmelCase__					     = file_format
        lowerCAmelCase__					     = Spark(
            df=lowercase__      ,   features=lowercase__      ,   cache_dir=lowercase__      ,   working_dir=lowercase__      ,   **lowercase__      ,   )




 def 		__snake_case						(      self :  Tuple):







        '''simple docstring'''



        if self.streaming:
               return self.builder.as_streaming_dataset(split=self.split)
        lowerCAmelCase__					     = None if self._load_from_cache_file else DownloadMode.FORCE_REDOWNLOAD
        self.builder.download_and_prepare(
            download_mode=lowercase__      ,   file_format=self._file_format      ,   )
        return self.builder.as_dataset(split=self.split)
