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"""
Generic dylib path manipulation
"""
import re
__all__ = ['dylib_info']
DYLIB_RE = re.compile(r"""(?x)
(?P<location>^.*)(?:^|/)
(?P<name>
(?P<shortname>\w+?)
(?:\.(?P<version>[^._]+))?
(?:_(?P<suffix>[^._]+))?
\.dylib$
)
""")
def dylib_info(filename):
"""
A dylib name can take one of the following four forms:
Location/Name.SomeVersion_Suffix.dylib
Location/Name.SomeVersion.dylib
Location/Name_Suffix.dylib
Location/Name.dylib
returns None if not found or a mapping equivalent to:
dict(
location='Location',
name='Name.SomeVersion_Suffix.dylib',
shortname='Name',
version='SomeVersion',
suffix='Suffix',
)
Note that SomeVersion and Suffix are optional and may be None
if not present.
"""
is_dylib = DYLIB_RE.match(filename)
if not is_dylib:
return None
return is_dylib.groupdict()
def test_dylib_info():
def d(location=None, name=None, shortname=None, version=None, suffix=None):
return dict(
location=location,
name=name,
shortname=shortname,
version=version,
suffix=suffix
)
assert dylib_info('completely/invalid') is None
assert dylib_info('completely/invalide_debug') is None
assert dylib_info('P/Foo.dylib') == d('P', 'Foo.dylib', 'Foo')
assert dylib_info('P/Foo_debug.dylib') == d('P', 'Foo_debug.dylib', 'Foo', suffix='debug')
assert dylib_info('P/Foo.A.dylib') == d('P', 'Foo.A.dylib', 'Foo', 'A')
assert dylib_info('P/Foo_debug.A.dylib') == d('P', 'Foo_debug.A.dylib', 'Foo_debug', 'A')
assert dylib_info('P/Foo.A_debug.dylib') == d('P', 'Foo.A_debug.dylib', 'Foo', 'A', 'debug')
if __name__ == '__main__':
test_dylib_info()