





'''simple docstring'''

import sacrebleu as scb
from packaging import version
from sacrebleu import CHRF

import datasets


__lowerCamelCase : Any											=			"\\n@inproceedings{popovic-2015-chrf,\n    title = \"chr{F}: character n-gram {F}-score for automatic {MT} evaluation\",\n    author = \"Popovi{\'c}, Maja\",\n    booktitle = \"Proceedings of the Tenth Workshop on Statistical Machine Translation\",\n    month = sep,\n    year = \"2015\",\n    address = \"Lisbon, Portugal\",\n    publisher = \"Association for Computational Linguistics\",\n    url = \"https://aclanthology.org/W15-3049\",\n    doi = \"10.18653/v1/W15-3049\",\n    pages = \"392--395\",\n}\n@inproceedings{popovic-2017-chrf,\n    title = \"chr{F}++: words helping character n-grams\",\n    author = \"Popovi{\'c}, Maja\",\n    booktitle = \"Proceedings of the Second Conference on Machine Translation\",\n    month = sep,\n    year = \"2017\",\n    address = \"Copenhagen, Denmark\",\n    publisher = \"Association for Computational Linguistics\",\n    url = \"https://aclanthology.org/W17-4770\",\n    doi = \"10.18653/v1/W17-4770\",\n    pages = \"612--618\",\n}\n@inproceedings{post-2018-call,\n    title = \"A Call for Clarity in Reporting {BLEU} Scores\",\n    author = \"Post, Matt\",\n    booktitle = \"Proceedings of the Third Conference on Machine Translation: Research Papers\",\n    month = oct,\n    year = \"2018\",\n    address = \"Belgium, Brussels\",\n    publisher = \"Association for Computational Linguistics\",\n    url = \"https://www.aclweb.org/anthology/W18-6319\",\n    pages = \"186--191\",\n}\n"

__lowerCamelCase : Dict											=			"\\nChrF and ChrF++ are two MT evaluation metrics. They both use the F-score statistic for character n-gram matches,\nand ChrF++ adds word n-grams as well which correlates more strongly with direct assessment. We use the implementation\nthat is already present in sacrebleu.\n\nThe implementation here is slightly different from sacrebleu in terms of the required input format. The length of\nthe references and hypotheses lists need to be the same, so you may need to transpose your references compared to\nsacrebleu's required input format. See https://github.com/huggingface/datasets/issues/3154#issuecomment-950746534\n\nSee the README.md file at https://github.com/mjpost/sacreBLEU#chrf--chrf for more information.\n"

__lowerCamelCase : List[Any]											=			"\nProduces ChrF(++) scores for hypotheses given reference translations.\n\nArgs:\n    predictions (list of str): The predicted sentences.\n    references (list of list of str): The references. There should be one reference sub-list for each prediction sentence.\n    char_order (int): Character n-gram order. Defaults to `6`.\n    word_order (int): Word n-gram order. If equals to `2`, the metric is referred to as chrF++. Defaults to `0`.\n    beta (int): Determine the importance of recall w.r.t precision. Defaults to `2`.\n    lowercase (bool): if `True`, enables case-insensitivity. Defaults to `False`.\n    whitespace (bool): If `True`, include whitespaces when extracting character n-grams.\n    eps_smoothing (bool): If `True`, applies epsilon smoothing similar\n    to reference chrF++.py, NLTK and Moses implementations. If `False`,\n    it takes into account effective match order similar to sacreBLEU < 2.0.0. Defaults to `False`.\n\nReturns:\n    'score' (float): The chrF (chrF++) score,\n    'char_order' (int): The character n-gram order,\n    'word_order' (int): The word n-gram order. If equals to 2, the metric is referred to as chrF++,\n    'beta' (int): Determine the importance of recall w.r.t precision\n\nExamples:\n    Example 1--a simple example of calculating chrF:\n        >>> prediction = [\"The relationship between cats and dogs is not exactly friendly.\", \"a good bookshop is just a genteel black hole that knows how to read.\"]\n        >>> reference = [[\"The relationship between dogs and cats is not exactly friendly.\"], [\"A good bookshop is just a genteel Black Hole that knows how to read.\"]]\n        >>> chrf = datasets.load_metric(\"chrf\")\n        >>> results = chrf.compute(predictions=prediction, references=reference)\n        >>> print(results)\n        {'score': 84.64214891738334, 'char_order': 6, 'word_order': 0, 'beta': 2}\n\n    Example 2--the same example, but with the argument word_order=2, to calculate chrF++ instead of chrF:\n        >>> prediction = [\"The relationship between cats and dogs is not exactly friendly.\", \"a good bookshop is just a genteel black hole that knows how to read.\"]\n        >>> reference = [[\"The relationship between dogs and cats is not exactly friendly.\"], [\"A good bookshop is just a genteel Black Hole that knows how to read.\"]]\n        >>> chrf = datasets.load_metric(\"chrf\")\n        >>> results = chrf.compute(predictions=prediction,\n        ...                         references=reference,\n        ...                         word_order=2)\n        >>> print(results)\n        {'score': 82.87263732906315, 'char_order': 6, 'word_order': 2, 'beta': 2}\n\n    Example 3--the same chrF++ example as above, but with `lowercase=True` to normalize all case:\n        >>> prediction = [\"The relationship between cats and dogs is not exactly friendly.\", \"a good bookshop is just a genteel black hole that knows how to read.\"]\n        >>> reference = [[\"The relationship between dogs and cats is not exactly friendly.\"], [\"A good bookshop is just a genteel Black Hole that knows how to read.\"]]\n        >>> chrf = datasets.load_metric(\"chrf\")\n        >>> results = chrf.compute(predictions=prediction,\n        ...                         references=reference,\n        ...                         word_order=2,\n        ...                         lowercase=True)\n        >>> print(results)\n        {'score': 92.12853119829202, 'char_order': 6, 'word_order': 2, 'beta': 2}\n"

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




		def 				UpperCAmelCase__   (self      :	List[str]				)					-> Union[str, Any]:
						if version.parse(scb.__version__				) < version.parse("1.4.12"				):
										raise ImportWarning(
										    "To use `sacrebleu`, the module `sacrebleu>=1.4.12` is required, and the current version of `sacrebleu` doesn't match this condition.\n"
										    "You can install it with `pip install \"sacrebleu>=1.4.12\"`."				)
						return datasets.MetricInfo(
						    description=_DESCRIPTION							,			citation=_CITATION							,			homepage="https://github.com/mjpost/sacreBLEU#chrf--chrf"							,			inputs_description=_KWARGS_DESCRIPTION							,			features=datasets.Features(
						        {
						            "predictions": datasets.Value("string"							,			id="sequence"				),
						            "references": datasets.Sequence(datasets.Value("string"							,			id="sequence"				)							,			id="references"				),
						        }				)							,			codebase_urls=["https://github.com/mjpost/sacreBLEU#chrf--chrf"]							,			reference_urls=[
						        "https://github.com/m-popovic/chrF",
						    ]							,			)





		def 				UpperCAmelCase__   (self      :	Tuple							,			A__      :	Dict							,			A__      :	Tuple							,			A__      :	int = CHRF.CHAR_ORDER							,			A__      :	int = CHRF.WORD_ORDER							,			A__      :	int = CHRF.BETA							,			A__      :	bool = False							,			A__      :	bool = False							,			A__      :	bool = False							,			)					-> List[str]:
						lowercase         = len(references[0]				)
						if any(len(A__				) != references_per_prediction for refs in references				):
										raise ValueError("Sacrebleu requires the same number of references for each prediction"				)
						lowercase         = [[refs[i] for refs in references] for i in range(A__				)]

						lowercase         = CHRF(A__							,			A__							,			A__							,			A__							,			A__							,			A__				)
						lowercase         = sb_chrf.corpus_score(A__							,			A__				)

						return {
						    "score": output.score,
						    "char_order": output.char_order,
						    "word_order": output.word_order,
						    "beta": output.beta,
						}











'''simple docstring'''

import warnings
from contextlib import contextmanager

from ....processing_utils import ProcessorMixin

class       UpperCAmelCase (						_lowercase  ):
		UpperCAmelCase					:	Optional[Any] 			=		'''MCTCTFeatureExtractor'''
		UpperCAmelCase					:	Tuple 			=		'''AutoTokenizer'''




		def __init__(self      :	int							,			A__      :	Tuple							,			A__      :	Union[str, Any]				)					-> Dict:
						super().__init__(A__							,			A__				)
						lowercase         = self.feature_extractor
						lowercase         = False




		def __call__(self      :	Tuple							,			*A__      :	str							,			**A__      :	Dict				)					-> int:
						# For backward compatibility
						if self._in_target_context_manager:
										return self.current_processor(*A__							,			**A__				)

						if "raw_speech" in kwargs:
										warnings.warn("Using `raw_speech` as a keyword argument is deprecated. Use `audio` instead."				)
										lowercase         = kwargs.pop("raw_speech"				)
						else:
										lowercase         = kwargs.pop("audio"							,			A__				)
						lowercase         = kwargs.pop("sampling_rate"							,			A__				)
						lowercase         = kwargs.pop("text"							,			A__				)
						if len(A__				) > 0:
										lowercase         = args[0]
										lowercase         = args[1:]

						if audio is None and text is None:
										raise ValueError("You need to specify either an `audio` or `text` input to process."				)

						if audio is not None:
										lowercase         = self.feature_extractor(A__							,			*A__							,			sampling_rate=A__							,			**A__				)
						if text is not None:
										lowercase         = self.tokenizer(A__							,			**A__				)

						if text is None:
										return inputs
						elif audio is None:
										return encodings
						else:
										lowercase         = encodings["input_ids"]
										return inputs




		def 				UpperCAmelCase__   (self      :	Tuple							,			*A__      :	str							,			**A__      :	str				)					-> str:
						return self.tokenizer.batch_decode(*A__							,			**A__				)




		def 				UpperCAmelCase__   (self      :	Any							,			*A__      :	List[Any]							,			**A__      :	List[str]				)					-> Tuple:
						# For backward compatibility
						if self._in_target_context_manager:
										return self.current_processor.pad(*A__							,			**A__				)

						lowercase         = kwargs.pop("input_features"							,			A__				)
						lowercase         = kwargs.pop("labels"							,			A__				)
						if len(A__				) > 0:
										lowercase         = args[0]
										lowercase         = args[1:]

						if input_features is not None:
										lowercase         = self.feature_extractor.pad(A__							,			*A__							,			**A__				)
						if labels is not None:
										lowercase         = self.tokenizer.pad(A__							,			**A__				)

						if labels is None:
										return input_features
						elif input_features is None:
										return labels
						else:
										lowercase         = labels["input_ids"]
										return input_features




		def 				UpperCAmelCase__   (self      :	Tuple							,			*A__      :	Optional[int]							,			**A__      :	Optional[int]				)					-> Tuple:
						return self.tokenizer.decode(*A__							,			**A__				)





		@contextmanager
		def 				UpperCAmelCase__   (self      :	Optional[Any]				)					-> Union[str, Any]:
						warnings.warn(
						    "`as_target_processor` is deprecated and will be removed in v5 of Transformers. You can process your "
						    "labels by using the argument `text` of the regular `__call__` method (either in the same call as "
						    "your audio inputs, or in a separate call."				)
						lowercase         = True
						lowercase         = self.tokenizer
						yield
						lowercase         = self.feature_extractor
						lowercase         = False




