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Improve private _nat_cmp() method #445

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Merged
merged 1 commit into from
Oct 17, 2024
Merged

Improve private _nat_cmp() method #445

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22 changes: 9 additions & 13 deletions src/semver/version.py
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Original file line number Diff line number Diff line change
Expand Up @@ -149,17 +149,15 @@ def cmp_prerelease_tag(a, b):
else:
return _cmp(a, b)

a, b = a or "", b or ""
a_parts, b_parts = a.split("."), b.split(".")
re_digits = re.compile(r"^\d+$")
parts_a = [int(x) if re_digits.match(x) else x for x in a_parts]
parts_b = [int(x) if re_digits.match(x) else x for x in b_parts]
for sub_a, sub_b in zip(parts_a, parts_b):
a_parts = [int(x) if x.isdigit() else x for x in (a or "").split(".")]
b_parts = [int(x) if x.isdigit() else x for x in (b or "").split(".")]

for sub_a, sub_b in zip(a_parts, b_parts):
cmp_result = cmp_prerelease_tag(sub_a, sub_b)
if cmp_result != 0:
return cmp_result
else:
return _cmp(len(a), len(b))

return _cmp(len(a_parts), len(b_parts))

@property
def major(self) -> int:
Expand Down Expand Up @@ -384,13 +382,11 @@ def compare(self, other: Comparable) -> int:
:return: The return value is negative if ver1 < ver2,
zero if ver1 == ver2 and strictly positive if ver1 > ver2

>>> semver.compare("2.0.0")
>>> Version.parse("1.0.0").compare("2.0.0")
-1
>>> semver.compare("1.0.0")
>>> Version.parse("2.0.0").compare("1.0.0")
1
>>> semver.compare("2.0.0")
0
>>> semver.compare(dict(major=2, minor=0, patch=0))
>>> Version.parse("2.0.0").compare("2.0.0")
0
"""
cls = type(self)
Expand Down
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