


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       lowerCamelCase__   (       __a):





     def __init__(self		,     UpperCAmelCase		,     UpperCAmelCase = None		,     UpperCAmelCase = None		,     UpperCAmelCase = True		,     UpperCAmelCase = None		,     UpperCAmelCase = False		,     UpperCAmelCase = None		,     UpperCAmelCase = True		,     UpperCAmelCase = "arrow"		,     **UpperCAmelCase		,     )     ->   Tuple:
      super().__init__(
          split=UpperCAmelCase		,     features=UpperCAmelCase		,     cache_dir=UpperCAmelCase		,     keep_in_memory=UpperCAmelCase		,     streaming=UpperCAmelCase		,     **UpperCAmelCase		,     )
      _lowercase							      =load_from_cache_file
      _lowercase							      =file_format
      _lowercase							      =Spark(
          df=UpperCAmelCase		,     features=UpperCAmelCase		,     cache_dir=UpperCAmelCase		,     working_dir=UpperCAmelCase		,     **UpperCAmelCase		,     )





     def      __A					(self       )     ->   Optional[Any]:

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







'''simple docstring'''







def 						snake_case_							(_a	:							str    ,   _a	:							str     ):
    UpperCAmelCase			       =		len(_a     ) + 1
    UpperCAmelCase			       =		len(_a     ) + 1

    # dp is a 2d matrix where dp[i][j] denotes whether prefix string of
    # length i of input_string matches with prefix string of length j of
    # given pattern.
    # "dp" stands for dynamic programming.
    UpperCAmelCase			       =		[[0 for i in range(_a     )] for j in range(_a     )]

    # since string of zero length match pattern of zero length
    UpperCAmelCase			       =		1

    # since pattern of zero length will never match with string of non-zero length
    for i in range(1    ,   _a     ):
        UpperCAmelCase			       =		0

    # since string of zero length will match with pattern where there
    # is at least one * alternatively
    for j in range(1    ,   _a     ):
        UpperCAmelCase			       =		dp[0][j - 2] if pattern[j - 1] == '''*''' else 0

    # now using bottom-up approach to find for all remaining lengths
    for i in range(1    ,   _a     ):
        for j in range(1    ,   _a     ):
            if input_string[i - 1] == pattern[j - 1] or pattern[j - 1] == ".":
                UpperCAmelCase			       =		dp[i - 1][j - 1]

            elif pattern[j - 1] == "*":
                if dp[i][j - 2] == 1:
                    UpperCAmelCase			       =		1
                elif pattern[j - 2] in (input_string[i - 1], "."):
                    UpperCAmelCase			       =		dp[i - 1][j]
                else:
                    UpperCAmelCase			       =		0
            else:
                UpperCAmelCase			       =		0

    return bool(dp[-1][-1]     )


if __name__ == "__main__":
   import doctest

   doctest.testmod()
   # inputing the strings
   # input_string = input("input a string :")
   # pattern = input("input a pattern :")

   A     ='aab'
   A     ='c*a*b'

   # using function to check whether given string matches the given pattern
   if match_pattern(input_string, pattern):
      print(f"""{input_string} matches the given pattern {pattern}""")
   else:
      print(f"""{input_string} does not match with the given pattern {pattern}""")




