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68 lines
2.1 KiB
Python
68 lines
2.1 KiB
Python
from ..language import Language
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from ..matcher import Matcher
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from ..tokens import Doc
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from ..util import filter_spans
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@Language.component(
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"merge_noun_chunks",
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requires=["token.dep", "token.tag", "token.pos"],
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retokenizes=True,
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)
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def merge_noun_chunks(doc: Doc) -> Doc:
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"""Merge noun chunks into a single token.
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doc (Doc): The Doc object.
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RETURNS (Doc): The Doc object with merged noun chunks.
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DOCS: https://nightly.spacy.io/api/pipeline-functions#merge_noun_chunks
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"""
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if not doc.is_parsed:
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return doc
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with doc.retokenize() as retokenizer:
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for np in doc.noun_chunks:
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attrs = {"tag": np.root.tag, "dep": np.root.dep}
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retokenizer.merge(np, attrs=attrs)
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return doc
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@Language.component(
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"merge_entities",
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requires=["doc.ents", "token.ent_iob", "token.ent_type"],
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retokenizes=True,
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)
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def merge_entities(doc: Doc):
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"""Merge entities into a single token.
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doc (Doc): The Doc object.
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RETURNS (Doc): The Doc object with merged entities.
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DOCS: https://nightly.spacy.io/api/pipeline-functions#merge_entities
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"""
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with doc.retokenize() as retokenizer:
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for ent in doc.ents:
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attrs = {"tag": ent.root.tag, "dep": ent.root.dep, "ent_type": ent.label}
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retokenizer.merge(ent, attrs=attrs)
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return doc
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@Language.component("merge_subtokens", requires=["token.dep"], retokenizes=True)
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def merge_subtokens(doc: Doc, label: str = "subtok") -> Doc:
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"""Merge subtokens into a single token.
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doc (Doc): The Doc object.
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label (str): The subtoken dependency label.
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RETURNS (Doc): The Doc object with merged subtokens.
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DOCS: https://nightly.spacy.io/api/pipeline-functions#merge_subtokens
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"""
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# TODO: make stateful component with "label" config
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merger = Matcher(doc.vocab)
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merger.add("SUBTOK", [[{"DEP": label, "op": "+"}]])
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matches = merger(doc)
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spans = filter_spans([doc[start : end + 1] for _, start, end in matches])
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with doc.retokenize() as retokenizer:
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for span in spans:
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retokenizer.merge(span)
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return doc
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