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On Thu, May 19, 2011 at 11:13 AM, Denenberg, Ray <[log in to unmask]> wrote:

> Please may I have opinions on whether these use cases justify the additional complexity, particularly from those of you who have commented that the feature adds too much complexity.

I'm really concerned about a workable spec: one that is likely to see
wide support not only in a variety of data formats, but also in
related software libraries, UIs, etc.

I originally supported questionable dates, but I do not support adding
them to a level of detail that conflicts with the above goals.

So, I would support a single trailing "?" that applies to a valid ISO
date representation*, but think allowing it to be applied to any
component within that goes too far because it fundamentally changes
ISO dates (not sure I put that well, but hope you get the idea).

Bruce

* e.g., any of these seem reasonable to me:

2000? (an uncertain year)
2000-03? (an uncertain year-month)
2000-03-04? (an uncertain year-month-day)
2000-04?/2003-05 (a range with an uncertain begin year-month)

... while these do not:

2000?-03
2000?-03-04?
2000?-(03-04)?