


"""simple docstring"""


from dataclasses import dataclass

a_											=			"0.1"
a_											=			"Lucia Harcekova"
@dataclass
class snake_case					:
		__UpperCamelCase							=	42
		__UpperCamelCase							=	42
		__UpperCamelCase							=	42







		def __repr__(    self					:				Union[str, Any]						)				->  str:





						'''simple docstring'''







						return F"""({self.offset}, {self.length}, {self.indicator})"""





class snake_case					:







		def __init__(    self					:				str			,      a__					:				int = 13			,      a__					:				int = 6						)				->  None:





						'''simple docstring'''







						_A         =	window_size
						_A         =	lookahead_buffer_size
						_A         =	self.window_size - self.lookahead_buffer_size







		def        a_       (    self					:				Optional[Any]			,      a__					:				str						)				->  list[Token]:





						'''simple docstring'''







						_A         =	[]
						_A         =	""

						# while there are still characters in text to compress
						while text:
										# find the next encoding phrase
										# - triplet with offset, length, indicator (the next encoding character)
										_A         =	self._find_encoding_token(a__			,      a__						)

										# update the search buffer:
										# - add new characters from text into it
										# - check if size exceed the max search buffer size, if so, drop the
										#   oldest elements
										search_buffer += text[: token.length + 1]
										if len(a__						) > self.search_buffer_size:
														_A         =	search_buffer[-self.search_buffer_size :]

										# update the text
										_A         =	text[token.length + 1 :]

										# append the token to output
										output.append(a__						)

						return output







		def        a_       (    self					:				int			,      a__					:				list[Token]						)				->  str:





						'''simple docstring'''







						_A         =	""

						for token in tokens:
										for _ in range(token.length						):
														output += output[-token.offset]
										output += token.indicator

						return output







		def        a_       (    self					:				Dict			,      a__					:				str			,      a__					:				str						)				->  Token:





						'''simple docstring'''







						if not text:
										raise ValueError("We need some text to work with."						)

						# Initialise result parameters to default values
						_A     ,						_A         =	0, 0

						if not search_buffer:
										return Token(a__			,      a__			,      text[length]						)

						for i, character in enumerate(a__						):
										_A         =	len(a__						) - i
										if character == text[0]:
														_A         =	self._match_length_from_index(a__			,      a__			,      0			,      a__						)
														# if the found length is bigger than the current or if it's equal,
														# which means it's offset is smaller: update offset and length
														if found_length >= length:
																		_A     ,						_A         =	found_offset, found_length

						return Token(a__			,      a__			,      text[length]						)







		def        a_       (    self					:				Optional[Any]			,      a__					:				str			,      a__					:				str			,      a__					:				int			,      a__					:				int						)				->  int:





						'''simple docstring'''







						if not text or text[text_index] != window[window_index]:
										return 0
						return 1 + self._match_length_from_index(
						    a__			,      window + text[text_index]			,      text_index + 1			,      window_index + 1						)


if __name__ == "__main__":
		from doctest import testmod

		testmod()
		# Initialize compressor class
		a_											=			LZaaCompressor(window_size=13, lookahead_buffer_size=6)

		# Example
		a_											=			"cabracadabrarrarrad"
		a_											=			lzaa_compressor.compress(TEXT)
		print(lzaa_compressor.compress("ababcbababaa"))
		a_											=			lzaa_compressor.decompress(compressed_text)
		assert decompressed_text == TEXT, "The LZ77 algorithm returned the invalid result."



"""simple docstring"""


import importlib
import inspect
from functools import wraps
from typing import TYPE_CHECKING, Optional, Union

from .download.streaming_download_manager import (
    xbasename,
    xdirname,
    xet_parse,
    xexists,
    xgetsize,
    xglob,
    xgzip_open,
    xisdir,
    xisfile,
    xjoin,
    xlistdir,
    xnumpy_load,
    xopen,
    xpandas_read_csv,
    xpandas_read_excel,
    xPath,
    xrelpath,
    xsio_loadmat,
    xsplit,
    xsplitext,
    xwalk,
    xxml_dom_minidom_parse,
)
from .utils.logging import get_logger
from .utils.patching import patch_submodule
from .utils.py_utils import get_imports


a_											=			get_logger(__name__)


if TYPE_CHECKING:
		from .builder import DatasetBuilder






def    a__       ( __lowercase   ,	__lowercase = None      )		->		Optional[Any]:
				_A         =	importlib.import_module(__lowercase      )

				# TODO(QL): always update the module to add subsequent new authentication
				if hasattr(__lowercase   ,	"_patched_for_streaming"      ) and module._patched_for_streaming:
								return

				def wrap_auth(__lowercase      ):
								@wraps(__lowercase      )
								def wrapper(*__lowercase   ,	**__lowercase      ):
												return function(*__lowercase   ,	use_auth_token=__lowercase   ,	**__lowercase      )

								_A         =	"wrap_auth"
								return wrapper

				# open files in a streaming fashion
				patch_submodule(__lowercase   ,	"open"   ,	wrap_auth(__lowercase      )      ).start()
				patch_submodule(__lowercase   ,	"os.listdir"   ,	wrap_auth(__lowercase      )      ).start()
				patch_submodule(__lowercase   ,	"os.walk"   ,	wrap_auth(__lowercase      )      ).start()
				patch_submodule(__lowercase   ,	"glob.glob"   ,	wrap_auth(__lowercase      )      ).start()
				# allow to navigate in remote zip files
				patch_submodule(__lowercase   ,	"os.path.join"   ,	__lowercase      ).start()
				patch_submodule(__lowercase   ,	"os.path.dirname"   ,	__lowercase      ).start()
				patch_submodule(__lowercase   ,	"os.path.basename"   ,	__lowercase      ).start()
				patch_submodule(__lowercase   ,	"os.path.relpath"   ,	__lowercase      ).start()
				patch_submodule(__lowercase   ,	"os.path.split"   ,	__lowercase      ).start()
				patch_submodule(__lowercase   ,	"os.path.splitext"   ,	__lowercase      ).start()
				# allow checks on paths
				patch_submodule(__lowercase   ,	"os.path.exists"   ,	wrap_auth(__lowercase      )      ).start()
				patch_submodule(__lowercase   ,	"os.path.isdir"   ,	wrap_auth(__lowercase      )      ).start()
				patch_submodule(__lowercase   ,	"os.path.isfile"   ,	wrap_auth(__lowercase      )      ).start()
				patch_submodule(__lowercase   ,	"os.path.getsize"   ,	wrap_auth(__lowercase      )      ).start()
				patch_submodule(__lowercase   ,	"pathlib.Path"   ,	__lowercase      ).start()
				# file readers
				patch_submodule(__lowercase   ,	"gzip.open"   ,	wrap_auth(__lowercase      )      ).start()
				patch_submodule(__lowercase   ,	"numpy.load"   ,	wrap_auth(__lowercase      )      ).start()
				patch_submodule(__lowercase   ,	"pandas.read_csv"   ,	wrap_auth(__lowercase      )   ,	attrs=["__version__"]      ).start()
				patch_submodule(__lowercase   ,	"pandas.read_excel"   ,	wrap_auth(__lowercase      )   ,	attrs=["__version__"]      ).start()
				patch_submodule(__lowercase   ,	"scipy.io.loadmat"   ,	wrap_auth(__lowercase      )   ,	attrs=["__version__"]      ).start()
				patch_submodule(__lowercase   ,	"xml.etree.ElementTree.parse"   ,	wrap_auth(__lowercase      )      ).start()
				patch_submodule(__lowercase   ,	"xml.dom.minidom.parse"   ,	wrap_auth(__lowercase      )      ).start()
				_A         =	True






def    a__       ( __lowercase      )		->		str:
				extend_module_for_streaming(builder.__module__   ,	use_auth_token=builder.use_auth_token      )
				# if needed, we also have to extend additional internal imports (like wmt14 -> wmt_utils)
				if not builder.__module__.startswith("datasets."      ):  # check that it's not a packaged builder like csv
								for imports in get_imports(inspect.getfile(builder.__class__      )      ):
												if imports[0] == "internal":
																_A         =	imports[1]
																_A         =	".".join(builder.__module__.split("."      )[:-1] + [internal_import_name]      )
																extend_module_for_streaming(__lowercase   ,	use_auth_token=builder.use_auth_token      )

    # builders can inherit from other builders that might use streaming functionality
    # (for example, ImageFolder and AudioFolder inherit from FolderBuilder which implements examples generation)
    # but these parents builders are not patched automatically as they are not instantiated, so we patch them here
				from .builder import DatasetBuilder

				_A         =	[
				    cls.__module__
				    for cls in type(__lowercase      ).__mro__[1:]  # make sure it's not the same module we've already patched
				    if issubclass(cls   ,	__lowercase      ) and cls.__module__ != DatasetBuilder.__module__
				]  # check it's not a standard builder from datasets.builder
				for module in parent_builder_modules:
								extend_module_for_streaming(__lowercase   ,	use_auth_token=builder.use_auth_token      )