On Fri, May 22, 2009 at 10:03 AM, Gabor Grothendieck <
ggrothendi...@gmail.com> wrote:
> Regarding division you could contribute that to the chron package.
> I've contributed a few missing items and they were incorporated.
>
Good to know. Maybe I'll do that....
> Giving an error when it does not understand something would be
> dangerous as it could break much existing code so that would
> probably not be possible at this stage.
But would it break any existing *correct* code? I find it hard to imagine
any cases where adding 1 hour of difftime to times("12:00:00") should return
1.5 days rather than 13:00:00.
> The idea of defaulting to internal representations is based on
> the idea that you get many features for free since the way the
> internal representations work gives the right answer in many
> cases.
I must admit I am rather shocked by this approach. Getting something "for
free" is a bad bargain if what you get is nonsense.
> Its best to stick with the implicit philosophy that
> underlies a package. If you want a different philosophy then
> its really tantamount to creating a new package. I don't
> think that one is right and the other wrong but simply
> represent different viewpoints.
>
So you would defend the "viewpoint" that 1 hour is the same thing as 1 day?
-s
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