One of a set only works with full year

[rettinghaus]

Trying to parse a set with a range of values doesn't work when the dates are not just years, e.g.:

• [1774-11..1774-12]
• [1785-07-30..1785-08-06]

From my understanding these sets are valid and should be parsed as such.

[timjmansfield]

I think you're right @rettinghaus

That's the way I read the Set representation section in Level 2 of the standard

5. Double-dots indicates all the values between the two values it separates, inclusive.
6. Double-dot at the beginning or end of the list means "on or before" or "on or after" respectively.
7. Elements immediately preceeding and/or following as well as the elements represented by a double-dot, all have the same precision. Otherwise, different elements may have different precisions

[rettinghaus]

Interistingly it works for Consecutives with only one boundary:

>>> edtf.parse_edtf("[2011-08..]")
OneOfASet: '[2011-08..]'
>>> edtf.parse_edtf("[1999-12-12..]")
OneOfASet: '[1999-12-12..]'
>>> edtf.parse_edtf("[..1908-03]")
OneOfASet: '[..1908-03]'