- See also
- http://www.ossp.org/pkg/lib/uuid/
- To be done
- Compare UUIDs, extract time and version from UUIDs
The library provides operations on UUIDs. Please consult other
sources for understanding UUIDs and the implications of the different
UUID versions. Some typical calls are given below:
?- uuid(X).
X = 'ea6589fa-19dd-11e2-8a49-001d92e1879d'.
?- uuid(X, [url('http://www.swi-prolog.org')]).
X = '73a07870-6a90-3f2e-ae2b-ffa538dc7c2c'.
- [det]uuid(-UUID)
- UUID is an atom representing a new UUID. This is
the same as calling
uuid(UUID, []). See uuid/2
for options.
- [det]uuid(-UUID,
+Options)
- Create a new UUID according to Options. The
following options are defined:
- version(+Versions)
- Integer in the range 1..5, which specifies the UUID version
that is created. Default is 1.
- dns(DNS)
- url(URL)
- oid(OID)
- x500(X500)
- Provide additional context information for UUIDs using version 3 or 5.
If there is no explicit version option, UUID version 3 is
used.
- format(+Format)
- Representation of the UUID. Default is
atom,
yielding atoms such as 8304efdd-bd6e-5b7c-a27f-83f3f05c64e0.
The alternative is integer, returning a large integer that
represents the 128 bits of the UUID.