On Fri, 17 Oct 1997, Simon Cox wrote:
> My understanding was that a syntax for indicating spans
> (disjoint or not) within a single (sub-)element is
> intended, rather than using repeating (sub-)elements
> min/max etc - ie the contents of a single DC.Date might
> include several date/times linked with suitable operators
> (eg "-" , "," , "..." etc) - this would be comparable with
> the proposed DC.Coverage.Polygon which has multiple
> vertices.
>
> Please will someone correct me if I have misunderstood.
I thought (as someone who was in the Date group during the day but not the
late-night discussions later on) that what was wanted was the ability to
say things like (using Misha's 8601 syntax):
DC.Date=1997-04-03T14:00-8
(created 3 April 1997 at 2pm in timezone -8 (Pacific time))
DC.Date.Valid=1997-04-03T14:00;1997-04-04T14:00
(valid from 2pm April 3rd till 2pm April 4th)
DC.Date=~1900
(Created sometime around 1900)
DC.Date.Valid=1997-04-03T14:00;*
(valid from 2pm April 3rd till further notice)
rather than things like
DC.Date.Valid=1997-03-01,1997-04-01,1997-05-01
(valid on the first of March, APril, May)
which might be handled by repeating the element.
(Note that the syntax here ";", "*" is my invention)
Andrew Daviel
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