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Remove spaces resulting from line continuation in arg type descriptor #676

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Remove spaces resulting from line continuation in arg type descriptor #676

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e6669e4
Remove spaces resulting from line continuation in arg type descriptor
stefanv Jan 21, 2026
41e6c73
Merge branch 'main' into strip-spaces-from-arg-type-continuation
stefanv Jan 21, 2026
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13 changes: 12 additions & 1 deletion numpydoc/docscrape.py
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Original file line number Diff line number Diff line change
Expand Up @@ -222,12 +222,23 @@ def _read_sections(self):

def _parse_param_list(self, content, single_element_is_type=False):
content = dedent_lines(content)

r = Reader(content)
params = []
while not r.eof():
header = r.read().strip()
if " : " in header:
arg_name, arg_type = header.split(" : ", maxsplit=1)
arg_name, arg_type_w_whitespace = header.split(" : ", maxsplit=1)
N = len(arg_name)

# This strips spaces that arose from
# backslash-continued lines. Unfortunately, we don't
# know the offset of the original docstring, and
# therefore also not the number of spaces introduced
# by the continued line. However, we can set a lower
# bound: length of the parameter, plus three (for
# space-colon-space).
arg_type = re.sub(rf" {{{N + 3},}}", " ", arg_type_w_whitespace)
else:
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@lagru lagru Jan 21, 2026

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I may not be following entirely but this seems wrong to me? Can it deal with the formatting below, where arg_name is quite long?

"""
Parameters
----------
very_long_arg_name : type wrapped \
        over multiple lines
    Description goes here.
"""

Why not just use

re.sub(r"\s{2,}", " ", arg_type_w_whitespace)

\s should also be able to deal with non-breaking spaces and such.

# NOTE: param line with single element should never have a
# a " :" before the description line, so this should probably
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14 changes: 14 additions & 0 deletions numpydoc/tests/test_docscrape.py
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Original file line number Diff line number Diff line change
Expand Up @@ -207,6 +207,20 @@ def test_parameters(doc):
assert desc[0].startswith("The type and size")


def test_type_continuation():
doc = NumpyDocString("""
Parameters
----------
foo : a type that goes across \
multiple lines
This is the description line.
""")
arg, arg_type, desc = doc["Parameters"][0]
assert arg == "foo"
assert arg_type == "a type that goes across multiple lines"
assert desc[0] == "This is the description line."


def test_other_parameters(doc):
assert len(doc["Other Parameters"]) == 1
assert [n for n, _, _ in doc["Other Parameters"]] == ["spam"]
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