OID equivalents of UUID() and STRUUID()

[ebremer]

Why?

Some standards and systems like to use OIDs such as DICOM

The OID form of a UUID is shown here
Where the hexidecimal UUID is appended to "2.25." in decimal (base 10) form with nothing but numbers (no dashes).

Previous work

Similar to UUID() and STRUUID()

Proposed solution

Take UUID "f81d4fae-7dec-11d0-a765-00a0c91e6bf6"

In OID world would be:

OIDUUID() -> "urn:oid:2.25.329800735698586629295641978511506172918"

STROIDUUID() -> "2.25.329800735698586629295641978511506172918"

[larsw]

Interesting, but shouldn't the OID() work on ASN.1 object identifiers (OIDs) in general?

[ebremer]

@larsw no, UUID strings are in hexidecimal and need to be converted to decimal before being prefixed with "2.25." for a proper OID-UUID. But I like the thought you brought up, a general oid() function which takes a valid oid string and returns urn:oid: could be useful. It wouldn't work for oid(struuid()) since the current SPARQL struuid() would return a hexidecimal UUID instead of a decimal UUID.