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"""EditorConfig version tools
Provides ``join_version`` and ``split_version`` classes for converting
__version__ strings to VERSION tuples and vice versa.
"""
import re
__all__ = ['join_version', 'split_version']
_version_re = re.compile(r'^(\d+)\.(\d+)\.(\d+)(\..*)?$', re.VERBOSE)
def join_version(version_tuple):
"""Return a string representation of version from given VERSION tuple"""
version = "%s.%s.%s" % version_tuple[:3]
if version_tuple[3] != "final":
version += "-%s" % version_tuple[3]
return version
def split_version(version):
"""Return VERSION tuple for given string representation of version"""
match = _version_re.search(version)
if not match:
return None
else:
split_version = list(match.groups())
if split_version[3] is None:
split_version[3] = "final"
split_version = list(map(int, split_version[:3])) + split_version[3:]
return tuple(split_version)
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