


import absl  # noqa: F401 # Here to have a nice missing dependency error message early on
import nltk  # noqa: F401 # Here to have a nice missing dependency error message early on
import numpy  # noqa: F401 # Here to have a nice missing dependency error message early on
import six  # noqa: F401 # Here to have a nice missing dependency error message early on
from rouge_score import rouge_scorer, scoring

import datasets


__UpperCamelCase    :						Dict     =							'\\n@inproceedings{lin-2004-rouge,\n    title = "{ROUGE}: A Package for Automatic Evaluation of Summaries",\n    author = "Lin, Chin-Yew",\n    booktitle = "Text Summarization Branches Out",\n    month = jul,\n    year = "2004",\n    address = "Barcelona, Spain",\n    publisher = "Association for Computational Linguistics",\n    url = "https://www.aclweb.org/anthology/W04-1013",\n    pages = "74--81",\n}\n'

__UpperCamelCase    :						List[Any]     =							'\\nROUGE, or Recall-Oriented Understudy for Gisting Evaluation, is a set of metrics and a software package used for\nevaluating automatic summarization and machine translation software in natural language processing.\nThe metrics compare an automatically produced summary or translation against a reference or a set of references (human-produced) summary or translation.\n\nNote that ROUGE is case insensitive, meaning that upper case letters are treated the same way as lower case letters.\n\nThis metrics is a wrapper around Google Research reimplementation of ROUGE:\nhttps://github.com/google-research/google-research/tree/master/rouge\n'

__UpperCamelCase    :						List[Any]     =							'\nCalculates average rouge scores for a list of hypotheses and references\nArgs:\n    predictions: list of predictions to score. Each prediction\n        should be a string with tokens separated by spaces.\n    references: list of reference for each prediction. Each\n        reference should be a string with tokens separated by spaces.\n    rouge_types: A list of rouge types to calculate.\n        Valid names:\n        `"rouge{n}"` (e.g. `"rouge1"`, `"rouge2"`) where: {n} is the n-gram based scoring,\n        `"rougeL"`: Longest common subsequence based scoring.\n        `"rougeLSum"`: rougeLsum splits text using `"\n"`.\n        See details in https://github.com/huggingface/datasets/issues/617\n    use_stemmer: Bool indicating whether Porter stemmer should be used to strip word suffixes.\n    use_aggregator: Return aggregates if this is set to True\nReturns:\n    rouge1: rouge_1 (precision, recall, f1),\n    rouge2: rouge_2 (precision, recall, f1),\n    rougeL: rouge_l (precision, recall, f1),\n    rougeLsum: rouge_lsum (precision, recall, f1)\nExamples:\n\n    >>> rouge = datasets.load_metric(\'rouge\')\n    >>> predictions = ["hello there", "general kenobi"]\n    >>> references = ["hello there", "general kenobi"]\n    >>> results = rouge.compute(predictions=predictions, references=references)\n    >>> print(list(results.keys()))\n    [\'rouge1\', \'rouge2\', \'rougeL\', \'rougeLsum\']\n    >>> print(results["rouge1"])\n    AggregateScore(low=Score(precision=1.0, recall=1.0, fmeasure=1.0), mid=Score(precision=1.0, recall=1.0, fmeasure=1.0), high=Score(precision=1.0, recall=1.0, fmeasure=1.0))\n    >>> print(results["rouge1"].mid.fmeasure)\n    1.0\n'



@datasets.utils.file_utils.add_start_docstrings(_DESCRIPTION,_KWARGS_DESCRIPTION						)
class 							_UpperCamelCase (						datasets.Metric						):

   '''simple docstring'''







   def   _snake_case    (  self  : int							):






         '''simple docstring'''



         return datasets.MetricInfo(
             description=_DESCRIPTION       ,  citation=_CITATION       ,  inputs_description=_KWARGS_DESCRIPTION       ,  features=datasets.Features(
                 {
                     """predictions""": datasets.Value("""string"""       ,  id="""sequence"""							),
                     """references""": datasets.Value("""string"""       ,  id="""sequence"""							),
                 }							)       ,  codebase_urls=["""https://github.com/google-research/google-research/tree/master/rouge"""]       ,  reference_urls=[
                 """https://en.wikipedia.org/wiki/ROUGE_(metric)""",
                 """https://github.com/google-research/google-research/tree/master/rouge""",
             ]       ,  )


   def   _snake_case    (  self  : Any       ,  _lowerCamelCase  : List[Any]       ,  _lowerCamelCase  : List[str]       ,  _lowerCamelCase  : str=None       ,  _lowerCamelCase  : Tuple=True       ,  _lowerCamelCase  : int=False							):






         '''simple docstring'''



         if rouge_types is None:
               __lowerCamelCase     :      int       						=						["""rouge1""", """rouge2""", """rougeL""", """rougeLsum"""]

         __lowerCamelCase     :      Tuple       						=						rouge_scorer.RougeScorer(rouge_types=_lowerCamelCase       ,  use_stemmer=_lowerCamelCase							)
         if use_aggregator:
               __lowerCamelCase     :      List[Any]       						=						scoring.BootstrapAggregator()
         else:
               __lowerCamelCase     :      Optional[Any]       						=						[]

         for ref, pred in zip(_lowerCamelCase       ,  _lowerCamelCase							):
               __lowerCamelCase     :      Optional[int]       						=						scorer.score(_lowerCamelCase       ,  _lowerCamelCase							)
               if use_aggregator:
                     aggregator.add_scores(_lowerCamelCase							)
               else:
                     scores.append(_lowerCamelCase							)

         if use_aggregator:
               __lowerCamelCase     :      str       						=						aggregator.aggregate()
         else:
               __lowerCamelCase     :      Tuple       						=						{}
               for key in scores[0]:
                     __lowerCamelCase     :      Union[str, Any]       						=						[score[key] for score in scores]

         return result







import json
from typing import Iterator, List, Union

from tokenizers import AddedToken, Regex, Tokenizer, decoders, normalizers, pre_tokenizers, trainers
from tokenizers.implementations.base_tokenizer import BaseTokenizer
from tokenizers.models import Unigram
from tokenizers.processors import TemplateProcessing



class 							_UpperCamelCase (						A						):

   '''simple docstring'''







   def __init__(  self  : str       ,  _lowerCamelCase  : str = "▁"       ,  _lowerCamelCase  : bool = True       ,  _lowerCamelCase  : Union[str, AddedToken] = "<unk>"       ,  _lowerCamelCase  : Union[str, AddedToken] = "</s>"       ,  _lowerCamelCase  : Union[str, AddedToken] = "<pad>"       ,  ):






         '''simple docstring'''



         __lowerCamelCase     :      Tuple       						=						{
             """pad""": {"""id""": 0, """token""": pad_token},
             """eos""": {"""id""": 1, """token""": eos_token},
             """unk""": {"""id""": 2, """token""": unk_token},
         }

         __lowerCamelCase     :      Optional[Any]       						=						[None] * len(self.special_tokens							)
         for token_dict in self.special_tokens.values():
               __lowerCamelCase     :      Tuple       						=						token_dict["""token"""]

         __lowerCamelCase     :      Optional[int]       						=						Tokenizer(Unigram()							)

         __lowerCamelCase     :      str       						=						normalizers.Sequence(
             [
                 normalizers.Nmt(),
                 normalizers.NFKC(),
                 normalizers.Replace(Regex(""" {2,}"""							)       ,  """ """							),
                 normalizers.Lowercase(),
             ]							)
         __lowerCamelCase     :      int       						=						pre_tokenizers.Sequence(
             [
                 pre_tokenizers.Metaspace(replacement=_lowerCamelCase       ,  add_prefix_space=_lowerCamelCase							),
                 pre_tokenizers.Digits(individual_digits=_lowerCamelCase							),
                 pre_tokenizers.Punctuation(),
             ]							)
         __lowerCamelCase     :      Tuple       						=						decoders.Metaspace(replacement=_lowerCamelCase       ,  add_prefix_space=_lowerCamelCase							)

         __lowerCamelCase     :      Tuple       						=						TemplateProcessing(
             single=F"""$A {self.special_tokens["eos"]["token"]}"""       ,  special_tokens=[(self.special_tokens["""eos"""]["""token"""], self.special_tokens["""eos"""]["""id"""])]       ,  )

         __lowerCamelCase     :      Tuple       						=						{
             """model""": """SentencePieceUnigram""",
             """replacement""": replacement,
             """add_prefix_space""": add_prefix_space,
         }

         super().__init__(_lowerCamelCase       ,  _lowerCamelCase							)

   def   _snake_case    (  self  : Dict       ,  _lowerCamelCase  : Union[str, List[str]]       ,  _lowerCamelCase  : int = 8_0_0_0       ,  _lowerCamelCase  : bool = True       ,  ):






         '''simple docstring'''



         __lowerCamelCase     :      Optional[Any]       						=						trainers.UnigramTrainer(
             vocab_size=_lowerCamelCase       ,  special_tokens=self.special_tokens_list       ,  show_progress=_lowerCamelCase       ,  )

         if isinstance(_lowerCamelCase       ,  _lowerCamelCase							):
               __lowerCamelCase     :      Optional[int]       						=						[files]
         self._tokenizer.train(_lowerCamelCase       ,  trainer=_lowerCamelCase							)

         self.add_unk_id()

   def   _snake_case    (  self  : List[Any]       ,  _lowerCamelCase  : Union[Iterator[str], Iterator[Iterator[str]]]       ,  _lowerCamelCase  : int = 8_0_0_0       ,  _lowerCamelCase  : bool = True       ,  ):






         '''simple docstring'''



         __lowerCamelCase     :      Any       						=						trainers.UnigramTrainer(
             vocab_size=_lowerCamelCase       ,  special_tokens=self.special_tokens_list       ,  show_progress=_lowerCamelCase       ,  )

         self._tokenizer.train_from_iterator(_lowerCamelCase       ,  trainer=_lowerCamelCase							)

         self.add_unk_id()


   def   _snake_case    (  self  : List[str]							):






         '''simple docstring'''



         __lowerCamelCase     :      List[str]       						=						json.loads(self._tokenizer.to_str()							)

         __lowerCamelCase     :      Optional[int]       						=						self.special_tokens["""unk"""]["""id"""]

         __lowerCamelCase     :      List[str]       						=						Tokenizer.from_str(json.dumps(_lowerCamelCase							)							)



