19 Filenames 19.3 Logical Pathnames 19.3.1 Syntax of Logical Pathname Namestrings 220.127.116.11 Additional Information about Parsing Logical Pathname Namestrings
18.104.22.168.5 The Version part of a Logical Pathname Namestring
Some file systems do not have versions.
Logical pathname translation to such a file system
ignores the version.
This implies that a program cannot rely on being able to store
more than one version of a file named by a logical pathname.
If a wildcard-version is specified,
it parses into :wild.