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4bea65a1a8
Patterns that end in variable-length operators e.g. * and ? now end on the correct token. Previously, they were off by 1: the next token was pulled into the match, even if that's where the pattern failed.
59 lines
1.4 KiB
Python
59 lines
1.4 KiB
Python
from __future__ import unicode_literals
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import pytest
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from ...matcher import Matcher
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from ...tokens import Doc
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from ...vocab import Vocab
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@pytest.mark.parametrize(
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'string,start,end',
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[
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('a', 0, 1),
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('a b', 0, 2),
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('a c', 0, 1),
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('a b c', 0, 2),
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('a b b c', 0, 2),
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('a b b', 0, 2),
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]
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)
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def test_issue1450_matcher_end_zero_plus(string, start, end):
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'''Test matcher works when patterns end with * operator.
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Original example (rewritten to avoid model usage)
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nlp = spacy.load('en_core_web_sm')
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matcher = Matcher(nlp.vocab)
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matcher.add(
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"TSTEND",
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on_match_1,
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[
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{TAG: "JJ", LOWER: "new"},
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{TAG: "NN", 'OP': "*"}
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]
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)
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doc = nlp(u'Could you create a new ticket for me?')
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print([(w.tag_, w.text, w.lower_) for w in doc])
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matches = matcher(doc)
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print(matches)
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assert len(matches) == 1
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assert matches[0][1] == 4
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assert matches[0][2] == 5
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'''
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matcher = Matcher(Vocab())
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matcher.add(
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"TSTEND",
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None,
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[
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{'ORTH': "a"},
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{'ORTH': "b", 'OP': "*"}
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]
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)
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doc = Doc(Vocab(), words=string.split())
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matches = matcher(doc)
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if start is None or end is None:
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assert matches == []
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assert matches[0][1] == start
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assert matches[0][2] == end
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