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import datasets |
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_DESCRIPTION = """\ |
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mono corpus from http://www.opensubtitles.org/. Please check http://www.opensubtitles.org/ for the available corpora and licenses. |
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""" |
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_HOMEPAGE_URL = "http://opus.nlpl.eu" |
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_CITATION = """\ |
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P. Lison and J. Tiedemann, 2016, OpenSubtitles2016: Extracting Large Parallel Corpora from Movie and TV Subtitles. In Proceedings of the 10th International Conference on Language Resources and Evaluation (LREC 2016) |
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""" |
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_BASE_URL = "https://object.pouta.csc.fi/OPUS-{}/{}/mono/{}.txt.gz" |
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_LANGUAGES = [ |
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("OpenSubtitles", "v2018", "en"), |
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] |
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class OpenSubtitlesConfig(datasets.BuilderConfig): |
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def __init__(self, *args, corpus=None, lang=None, **kwargs): |
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corpus.strip() |
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splits = corpus.split() |
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corpus = splits[0] |
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corpus_version = splits[1] |
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super().__init__( |
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*args, |
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name=f"{corpus}-{corpus_version}-{lang}", |
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**kwargs, |
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) |
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self.corpus = corpus |
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self.corpus_version = corpus_version |
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self.lang = lang |
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class OpenSubtitles(datasets.GeneratorBasedBuilder): |
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BUILDER_CONFIG_CLASS = OpenSubtitlesConfig |
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def _info(self): |
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return datasets.DatasetInfo( |
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description=_DESCRIPTION, |
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features=datasets.Features( |
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{ |
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"id": datasets.Value("string"), |
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"text": datasets.Value("string"), |
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}, |
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), |
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supervised_keys=None, |
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homepage=_HOMEPAGE_URL, |
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) |
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def _split_generators(self, dl_manager): |
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def _base_url(corpus, corpus_version, lang): |
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return _BASE_URL.format(corpus, corpus_version, lang) |
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download_url = _base_url(self.config.corpus, self.config.corpus_version, self.config.lang) |
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path = dl_manager.download_and_extract(download_url) |
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return [ |
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datasets.SplitGenerator( |
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name=datasets.Split.TRAIN, |
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gen_kwargs={"datapath": path}, |
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) |
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] |
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def _generate_examples(self, datapath): |
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with open(datapath, encoding="utf-8") as f: |
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for text_counter, line in enumerate(f): |
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line = line.strip() |
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result = ( |
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text_counter, |
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{ |
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"id": str(text_counter), |
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"text": line |
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}, |
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) |
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text_counter += 1 |
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yield result |
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