






"""simple docstring"""





import json
import os
import pickle
import subprocess
from hashlib import mda
from pathlib import Path
from tempfile import gettempdir
from textwrap import dedent
from types import CodeType, FunctionType
from unittest import TestCase
from unittest.mock import patch

import pytest
from multiprocess import Pool
from packaging import version

import datasets
from datasets.fingerprint import Hasher, fingerprint_transform
from datasets.table import InMemoryTable

from .utils import (
    require_regex,
    require_spacy,
    require_spacy_model,
    require_tiktoken,
    require_torch,
    require_transformers,
)







class 						_a  :





   '''simple docstring'''






   def __init__(       self					, UpperCAmelCase_)			->   List[Any]:




          '''simple docstring'''




          lowercase__:							List[str]         =     foo





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




          '''simple docstring'''




          return self.foo







class 						_a  (		datasets.Dataset       ):





   '''simple docstring'''






   @fingerprint_transform(inplace=UpperCAmelCase_)
   def __lowercase							(       self					, UpperCAmelCase_					, *UpperCAmelCase_					, **UpperCAmelCase_)			->   int:




          '''simple docstring'''




          return DatasetChild(self.data					, fingerprint=UpperCAmelCase_)





   @fingerprint_transform(inplace=UpperCAmelCase_)
   def __lowercase							(       self					, UpperCAmelCase_					, *UpperCAmelCase_					, **UpperCAmelCase_)			->   int:




          '''simple docstring'''




          return DatasetChild(self.data					, fingerprint=UpperCAmelCase_)







class 						_a  :





   '''simple docstring'''






   def __init__(       self					, UpperCAmelCase_)			->   Optional[int]:




          '''simple docstring'''




          lowercase__:							Tuple         =     callable





   def __call__(       self					, *UpperCAmelCase_					, **UpperCAmelCase_)			->   Optional[int]:




          '''simple docstring'''




          if self.callable is not None:
                 return self.callable(*UpperCAmelCase_					, **UpperCAmelCase_)





   def __getstate__(       self)			->   int:




          '''simple docstring'''




          raise pickle.PicklingError()







class 						_a  (		lowercase_       ):





   '''simple docstring'''






   @require_transformers
   @pytest.mark.integration
   def __lowercase							(       self)			->   List[Any]:




          '''simple docstring'''




          from transformers import AutoTokenizer

          def encode(UpperCAmelCase_):
                 return tokenizer(UpperCAmelCase_)

          # TODO: add hash consistency tests across sessions
          lowercase__:							Tuple         =     AutoTokenizer.from_pretrained("bert-base-uncased")
          lowercase__:							Optional[Any]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Any         =     mda(datasets.utils.py_utils.dumps(lambda UpperCAmelCase_: tokenizer(UpperCAmelCase_))).hexdigest()
          lowercase__:							Optional[Any]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Tuple         =     AutoTokenizer.from_pretrained("bert-base-cased")
          lowercase__:							int         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Tuple         =     mda(datasets.utils.py_utils.dumps(lambda UpperCAmelCase_: tokenizer(UpperCAmelCase_))).hexdigest()
          lowercase__:							List[str]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Optional[int]         =     AutoTokenizer.from_pretrained("bert-base-uncased")
          lowercase__:							Tuple         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							str         =     mda(datasets.utils.py_utils.dumps(lambda UpperCAmelCase_: tokenizer(UpperCAmelCase_))).hexdigest()
          lowercase__:							Tuple         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)





   @require_transformers
   @pytest.mark.integration
   def __lowercase							(       self)			->   Optional[int]:




          '''simple docstring'''




          from transformers import AutoTokenizer

          lowercase__:							Optional[int]         =     AutoTokenizer.from_pretrained("gpt2")
          lowercase__:							Any         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          tokenizer("Hello world !")  # call once to change the tokenizer's cache
          lowercase__:							Tuple         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)





   @require_regex
   def __lowercase							(       self)			->   str:




          '''simple docstring'''




          import regex

          lowercase__:							List[Any]         =     regex.Regex("foo")
          lowercase__:							Optional[int]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							List[Any]         =     regex.Regex("bar")
          lowercase__:							List[str]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Union[str, Any]         =     regex.Regex("foo")
          lowercase__:							Optional[Any]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)







class 						_a  (		lowercase_       ):





   '''simple docstring'''






   def __lowercase							(       self)			->   int:




          '''simple docstring'''




          def func():
                 return foo

          lowercase__:							int         =     [0]
          lowercase__:							Optional[Any]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Dict         =     [1]
          lowercase__:							int         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Union[str, Any]         =     [0]
          lowercase__:							List[Any]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)





   def __lowercase							(       self)			->   Dict:




          '''simple docstring'''




          def func():
                 pass

          lowercase__:							Any         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()

          def func():
                 pass

          lowercase__:							List[Any]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)





   def __lowercase							(       self)			->   str:




          '''simple docstring'''




          lowercase__:							Optional[int]         =     mda(datasets.utils.py_utils.dumps(Foo([0]))).hexdigest()
          lowercase__:							Optional[Any]         =     mda(datasets.utils.py_utils.dumps(Foo([1]))).hexdigest()
          lowercase__:							int         =     mda(datasets.utils.py_utils.dumps(Foo([0]))).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)





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




          '''simple docstring'''




          lowercase__:							Any         =     mda(datasets.utils.py_utils.dumps(Foo([0]).__call__)).hexdigest()
          lowercase__:							List[Any]         =     mda(datasets.utils.py_utils.dumps(Foo([1]).__call__)).hexdigest()
          lowercase__:							Optional[Any]         =     mda(datasets.utils.py_utils.dumps(Foo([0]).__call__)).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)





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




          '''simple docstring'''




          lowercase__:							List[Any]         =     (
              "co_argcount",
              "co_kwonlyargcount",
              "co_nlocals",
              "co_stacksize",
              "co_flags",
              "co_code",
              "co_consts",
              "co_names",
              "co_varnames",
              "co_filename",
              "co_name",
              "co_firstlineno",
              "co_lnotab",
              "co_freevars",
              "co_cellvars",
          )

          def _create_code_pyaa(*UpperCAmelCase_):
                 if hasattr(args[-3]					, "encode"):
                        lowercase__:							Tuple         =     list(UpperCAmelCase_)
                        lowercase__:							str         =     args[-3].encode()  # co_lnotab
                        lowercase__:							Any         =     args[-10].encode()  # co_code
                 if hasattr(UpperCAmelCase_					, "co_posonlyargcount"):
                        if len(UpperCAmelCase_) == 16:
                               return CodeType(*UpperCAmelCase_)
                        elif len(UpperCAmelCase_) == 15:
                               return CodeType(args[0]					, 0					, *args[1:])
                        return CodeType(args[0]					, 0					, 0					, *args[1:])
                 elif hasattr(UpperCAmelCase_					, "co_kwonlyargcount"):
                        if len(UpperCAmelCase_) == 16:
                               return CodeType(args[0]					, *args[2:])
                        elif len(UpperCAmelCase_) == 15:
                               return CodeType(*UpperCAmelCase_)
                        return CodeType(args[0]					, 0					, *args[1:])
                 if len(UpperCAmelCase_) == 16:
                        return CodeType(args[0]					, *args[3:])
                 elif len(UpperCAmelCase_) == 15:
                        return CodeType(args[0]					, *args[2:])
                 return CodeType(*UpperCAmelCase_)

          def create_ipython_func(UpperCAmelCase_					, UpperCAmelCase_):
                 def func():
                        return returned_obj

                 lowercase__:							Dict         =     func.__code__
                 # Use _create_code from dill in order to make it work for different python versions
                 if datasets.config.PY_VERSION < version.parse("3.8"):
                        lowercase__:							Union[str, Any]         =     _create_code_pyaa(
                            *[getattr(UpperCAmelCase_					, UpperCAmelCase_) if k != "co_filename" else co_filename for k in code_args_pyaa])
                 else:
                        lowercase__:							Tuple         =     code.replace(co_filename=UpperCAmelCase_)
                 return FunctionType(UpperCAmelCase_					, func.__globals__					, func.__name__					, func.__defaults__					, func.__closure__)

          lowercase__    ,      lowercase__:							Any         =     "<ipython-input-2-e0383a102aae>", [0]
          lowercase__:							List[str]         =     mda(datasets.utils.py_utils.dumps(create_ipython_func(UpperCAmelCase_					, UpperCAmelCase_))).hexdigest()
          lowercase__    ,      lowercase__:							Optional[Any]         =     "<ipython-input-2-e0383a102aae>", [1]
          lowercase__:							Optional[int]         =     mda(datasets.utils.py_utils.dumps(create_ipython_func(UpperCAmelCase_					, UpperCAmelCase_))).hexdigest()
          lowercase__    ,      lowercase__:							Tuple         =     "<ipython-input-5-713f6613acf3>", [0]
          lowercase__:							List[str]         =     mda(datasets.utils.py_utils.dumps(create_ipython_func(UpperCAmelCase_					, UpperCAmelCase_))).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)

          lowercase__    ,      lowercase__:							Dict         =     os.path.join(gettempdir()					, "ipykernel_12345"					, "321456789.py"), [0]
          lowercase__:							Tuple         =     mda(datasets.utils.py_utils.dumps(create_ipython_func(UpperCAmelCase_					, UpperCAmelCase_))).hexdigest()
          lowercase__    ,      lowercase__:							Dict         =     os.path.join(gettempdir()					, "ipykernel_12345"					, "321456789.py"), [1]
          lowercase__:							Any         =     mda(datasets.utils.py_utils.dumps(create_ipython_func(UpperCAmelCase_					, UpperCAmelCase_))).hexdigest()
          lowercase__    ,      lowercase__:							Any         =     os.path.join(gettempdir()					, "ipykernel_12345"					, "654123987.py"), [0]
          lowercase__:							Dict         =     mda(datasets.utils.py_utils.dumps(create_ipython_func(UpperCAmelCase_					, UpperCAmelCase_))).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)





   def __lowercase							(       self)			->   Dict:




          '''simple docstring'''




          lowercase__    ,      lowercase__:							str         =     [0], [1]

          def func():
                 return foo, bar

          lowercase__:							List[str]         =     "__main__"

          def globalvars_mocka_side_effect(UpperCAmelCase_					, *UpperCAmelCase_					, **UpperCAmelCase_):
                 return {"foo": foo, "bar": bar}

          def globalvars_mocka_side_effect(UpperCAmelCase_					, *UpperCAmelCase_					, **UpperCAmelCase_):
                 return {"bar": bar, "foo": foo}

          with patch("dill.detect.globalvars"					, side_effect=UpperCAmelCase_) as globalvars_mocka:
                 lowercase__:							Optional[Any]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
                 self.assertGreater(globalvars_mocka.call_count					, 0)
          with patch("dill.detect.globalvars"					, side_effect=UpperCAmelCase_) as globalvars_mocka:
                 lowercase__:							Tuple         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
                 self.assertGreater(globalvars_mocka.call_count					, 0)
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)







class 						_a  (		lowercase_       ):





   '''simple docstring'''






   def __lowercase							(       self)			->   int:




          '''simple docstring'''




          lowercase__:							List[Any]         =     Hasher.hash("hello")
          lowercase__:							Optional[int]         =     Hasher.hash("hello")
          lowercase__:							int         =     Hasher.hash("there")
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)





   def __lowercase							(       self)			->   Any:




          '''simple docstring'''




          lowercase__:							str         =     Hasher.hash(Foo("hello"))
          lowercase__:							Tuple         =     Hasher.hash(Foo("hello"))
          lowercase__:							Union[str, Any]         =     Hasher.hash(Foo("there"))
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)





   def __lowercase							(       self)			->   str:




          '''simple docstring'''




          lowercase__:							str         =     Hasher()
          for x in ["hello", Foo("hello")]:
                 hasher.update(UpperCAmelCase_)
          lowercase__:							Dict         =     hasher.hexdigest()
          lowercase__:							Any         =     Hasher()
          for x in ["hello", Foo("hello")]:
                 hasher.update(UpperCAmelCase_)
          lowercase__:							List[Any]         =     hasher.hexdigest()
          lowercase__:							Optional[int]         =     Hasher()
          for x in ["there", Foo("there")]:
                 hasher.update(UpperCAmelCase_)
          lowercase__:							Tuple         =     hasher.hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)





   def __lowercase							(       self)			->   List[str]:




          '''simple docstring'''




          with self.assertRaises(pickle.PicklingError):
                 Hasher.hash(UnpicklableCallable(Foo("hello")))





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




          '''simple docstring'''




          lowercase__:							Optional[Any]         =     "abc"
          lowercase__:							Any         =     [string, string]  # two strings have the same ids
          lowercase__:							str         =     [string, string]
          lowercase__:							Optional[int]         =     json.loads(F"""[\"{string}\", \"{string}\"]""")  # two strings have different ids
          self.assertIs(obja[0]					, UpperCAmelCase_)
          self.assertIs(obja[0]					, obja[1])
          self.assertIs(obja[0]					, UpperCAmelCase_)
          self.assertIs(obja[0]					, obja[1])
          self.assertIsNot(obja[0]					, UpperCAmelCase_)
          self.assertIsNot(obja[0]					, obja[1])
          lowercase__:							List[Any]         =     Hasher.hash(UpperCAmelCase_)
          lowercase__:							str         =     Hasher.hash(UpperCAmelCase_)
          lowercase__:							Tuple         =     Hasher.hash(UpperCAmelCase_)
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)





   @require_tiktoken
   def __lowercase							(       self)			->   str:




          '''simple docstring'''




          import tiktoken

          lowercase__:							Union[str, Any]         =     tiktoken.get_encoding("gpt2")
          lowercase__:							List[str]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Dict         =     tiktoken.get_encoding("r50k_base")
          lowercase__:							Dict         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							List[Any]         =     tiktoken.get_encoding("gpt2")
          lowercase__:							Optional[int]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)





   @require_torch
   def __lowercase							(       self)			->   List[Any]:




          '''simple docstring'''




          import torch

          lowercase__:							Tuple         =     torch.tensor([1.0])
          lowercase__:							Optional[int]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Dict         =     torch.tensor([2.0])
          lowercase__:							Union[str, Any]         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Tuple         =     torch.tensor([1.0])
          lowercase__:							Any         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)





   @require_spacy
   @require_spacy_model("en_core_web_sm")
   @require_spacy_model("fr_core_news_sm")
   @pytest.mark.integration
   def __lowercase							(       self)			->   Any:




          '''simple docstring'''




          import spacy

          lowercase__:							Tuple         =     spacy.load("en_core_web_sm")
          lowercase__:							Any         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							Any         =     spacy.load("fr_core_news_sm")
          lowercase__:							str         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          lowercase__:							int         =     spacy.load("en_core_web_sm")
          lowercase__:							str         =     mda(datasets.utils.py_utils.dumps(UpperCAmelCase_)).hexdigest()
          self.assertEqual(UpperCAmelCase_					, UpperCAmelCase_)
          self.assertNotEqual(UpperCAmelCase_					, UpperCAmelCase_)







@pytest.mark.integration
def 							A(    snake_case_						):
       """simple docstring"""





       lowercase__:							Optional[Any]         =     tmp_path / "dir1"
       lowercase__:							Tuple         =     tmp_path / "dir2"
       dira.mkdir()
       dira.mkdir()
       lowercase__:							Union[str, Any]         =     "script.py"
       lowercase__:							Any         =     dedent(
           "\n    from datasets.fingerprint import Hasher\n    def foo():\n        pass\n    print(Hasher.hash(foo))\n    "						)
       lowercase__:							List[str]         =     dira / script_filename
       lowercase__:							int         =     dira / script_filename
       with script_patha.open("w"						) as f:
              f.write(snake_case_						)
       with script_patha.open("w"						) as f:
              f.write(snake_case_						)
       lowercase__:							Any         =     subprocess.check_output(["python", str(snake_case_						)]						)
       lowercase__:							Optional[Any]         =     subprocess.check_output(["python", str(snake_case_						)]						)
       assert fingerprinta == fingerprinta






def 							A(    ):
       """simple docstring"""





       lowercase__:							Optional[int]         =     {"a": [0, 1, 2]}
       lowercase__:							Dict         =     DatasetChild(InMemoryTable.from_pydict(snake_case_						)						)
       lowercase__:							List[Any]         =     dataset.funca()._fingerprint
       assert expected_fingerprint == dataset.funca()._fingerprint
       assert expected_fingerprint != dataset.funca()._fingerprint

       with Pool(2						) as p:
              assert expected_fingerprint == p.apply_async(dataset.funca						).get()._fingerprint
              assert expected_fingerprint != p.apply_async(dataset.funca						).get()._fingerprint






def 							A(    ):
       """simple docstring"""





       lowercase__:							List[str]         =     {"a": [0, 1, 2]}







       class 						_a  (		datasets.Dataset       ):





          '''simple docstring'''






          @fingerprint_transform(inplace=UpperCAmelCase_)
          def __lowercase							(       self					, UpperCAmelCase_)			->   List[str]:




                 '''simple docstring'''




                 return DummyDatasetChild(self.data					, fingerprint=UpperCAmelCase_)







       lowercase__:							Tuple         =     DummyDatasetChild(InMemoryTable.from_pydict(snake_case_						)						).func()







       class 						_a  (		datasets.Dataset       ):





          '''simple docstring'''






          @fingerprint_transform(inplace=UpperCAmelCase_					, version="1.0.0")
          def __lowercase							(       self					, UpperCAmelCase_)			->   Optional[int]:




                 '''simple docstring'''




                 return DummyDatasetChild(self.data					, fingerprint=UpperCAmelCase_)







       lowercase__:							Optional[int]         =     DummyDatasetChild(InMemoryTable.from_pydict(snake_case_						)						).func()







       class 						_a  (		datasets.Dataset       ):





          '''simple docstring'''






          @fingerprint_transform(inplace=UpperCAmelCase_					, version="2.0.0")
          def __lowercase							(       self					, UpperCAmelCase_)			->   Any:




                 '''simple docstring'''




                 return DummyDatasetChild(self.data					, fingerprint=UpperCAmelCase_)







       lowercase__:							Optional[int]         =     DummyDatasetChild(InMemoryTable.from_pydict(snake_case_						)						).func()

       assert len({fingeprint_no_version, fingeprint_a, fingeprint_a}						) == 3







def 							A(    ):
       """simple docstring"""





       lowercase__:							int         =     Hasher()
       hasher.update(lambda snake_case_						: x						)














"""simple docstring"""





from dataclasses import dataclass

UpperCamelCase					=     """0.1"""
UpperCamelCase					=     """Lucia Harcekova"""







@dataclass
class 						_a  :





   '''simple docstring'''






   UpperCamelCase__     	=							42
   UpperCamelCase__     	=							42
   UpperCamelCase__     	=							42





   def __repr__(       self)			->   str:




          '''simple docstring'''




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







class 						_a  :





   '''simple docstring'''






   def __init__(       self					, UpperCAmelCase_ = 13					, UpperCAmelCase_ = 6)			->   None:




          '''simple docstring'''




          lowercase__:							Union[str, Any]         =     window_size
          lowercase__:							Any         =     lookahead_buffer_size
          lowercase__:							Optional[Any]         =     self.window_size - self.lookahead_buffer_size





   def __lowercase							(       self					, UpperCAmelCase_)			->   list[Token]:




          '''simple docstring'''




          lowercase__:							Any         =     []
          lowercase__:							Union[str, Any]         =     ""

          # 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)
                 lowercase__:							Optional[Any]         =     self._find_encoding_token(UpperCAmelCase_					, UpperCAmelCase_)

                 # 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(UpperCAmelCase_) > self.search_buffer_size:
                        lowercase__:							List[Any]         =     search_buffer[-self.search_buffer_size :]

                 # update the text
                 lowercase__:							List[str]         =     text[token.length + 1 :]

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

          return output





   def __lowercase							(       self					, UpperCAmelCase_)			->   str:




          '''simple docstring'''




          lowercase__:							int         =     ""

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

          return output





   def __lowercase							(       self					, UpperCAmelCase_					, UpperCAmelCase_)			->   Token:




          '''simple docstring'''




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

          # Initialise result parameters to default values
          lowercase__    ,      lowercase__:							Optional[int]         =     0, 0

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

          for i, character in enumerate(UpperCAmelCase_):
                 lowercase__:							Union[str, Any]         =     len(UpperCAmelCase_) - i
                 if character == text[0]:
                        lowercase__:							Optional[Any]         =     self._match_length_from_index(UpperCAmelCase_					, UpperCAmelCase_					, 0					, UpperCAmelCase_)
                        # 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:
                               lowercase__    ,      lowercase__:							Any         =     found_offset, found_length

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





   def __lowercase							(       self					, UpperCAmelCase_					, UpperCAmelCase_					, UpperCAmelCase_					, UpperCAmelCase_)			->   int:




          '''simple docstring'''




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


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

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

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






