--- Greg Hudson <ghudson@MIT.EDU> wrote:
> 2. Pick a different separator for ranges, which
> isn't used in dates.
> Looking at the punctuation symbols on my
> keyboard, there isn't a
> good choice other than maybe "--" or "::".
What's wrong with ','? In fact, I think it may be
possible to support the math notation for ranges (ie
using parentheses for exclusive and brackets for
inclusive; both with escaping or quotes, of course).
I don't have a copy in front of me. What does ISO
8601 say about range syntax?
> 3. Nuke the -D option, and consider dates to be a
> special syntax of
> revision names; perhaps they would need to be
> enclosed in
> brackets. So we'd have "-r '[2002-10-10]:23'"
> for the range {rev
> as of 2002-10-10} to {rev 23}. Of course, then
> all dates have to
> be shell-quoted, since shells are rather
> proprietary about the
> various kinds of brackets.
I like this in combination with the above. For
example, "-r '[2002-10-10 16:00:00,23)'".
> 5. Try to intuit whether a colon is a date-range
> separator or part
> of a date. '2002-10-10 16:23:12:2002-10-11
> 12:10:06' is pretty
> ugly, though.
Ugly or not, my experience with intuiting is that it's
really bad when the computer intuits something the
human doesn't.
> Which should I implement?
I vote (not that it counts for much :-) for a
combination of 2 and 3.
Noel
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Received on Thu Oct 17 04:27:30 2002