import pytest
from spacy.language import Language
from spacy.lang.punctuation import TOKENIZER_INFIXES
from spacy.lang.char_classes import ALPHA
@pytest.mark.parametrize(
"text,expected_tokens", [("l'avion", ["l'", "avion"]), ("j'ai", ["j'", "ai"])]
)
def test_issue768(text, expected_tokens):
"""Allow zero-width 'infix' token during the tokenization process."""
SPLIT_INFIX = r"(?<=[{a}]\')(?=[{a}])".format(a=ALPHA)
class FrenchTest(Language):
class Defaults(Language.Defaults):
infixes = TOKENIZER_INFIXES + [SPLIT_INFIX]
fr_tokenizer_w_infix = FrenchTest().tokenizer
tokens = fr_tokenizer_w_infix(text)
assert len(tokens) == 2
assert [t.text for t in tokens] == expected_tokens
