KEP 2: Modification of datetime type, introduction of 'tz' sub-tag
wrobel at kolabsys.com
Tue Nov 23 14:39:52 CET 2010
Zitat von "Georg C. F. Greve" <greve at kolabsys.com>:
> Hi Hendrik,
> On Monday 22 November 2010 12.08:22 Hendrik Helwich wrote:
>> i understand that this is not wanted, but it should also be possible with
>> that RFC3339 library to store only in the UTC form. This would not be much
>> trouble in coding (if it is not already done like this) and will fit the
> Yes. And clients can of course choose to continue to do that.
>> If all RFC3339 formats are accepted when reading the kolab
>> xml this is also no problem because the kolab xml parsing should already
>> be not to strict because the specification is interpreted in a loose way
>> by the different clients which write the format.
> Exactly. But right now it does not say that clients need to be able to
> understand RFC3339, although they seem to be doing so already.
> Which is why it was proposed to make that explicit.
>> There are also system functions which read the simple UTC format.
> Do we know whether any clients use those?
> The clients I am aware of that are actively used are:
> * Kontact
> * Horde
> * Z-Push
> * Evolution
> * Syncphony
> * Synckolab
> * Toltec
> * Konsek
> * Bynari Insight
> of which some share code (e.g. Z-Push and Horde both use Kolab_Format IIRC).
> What do the others use?
> If we find out that people already use the RFC3339 capable parsers,
> I think it
> would make sense to agree to the common baseline that most applications use
> for this purpose, which is RFC3339 - because that code is more likely to be
> used by many others, thus likely being more robust than any (now likely
> deprecated) code for other formats.
> Questions to all client implementors therefore would be:
> (a) Do you use your own parser for datetime stamps?
> (a1) If so: Why?
Because the function was already implemented in that way when I
started working with the old Kolab code in Horde and so far there was
never any need to touch this area.
> (b) Does the parser you use support RFC3339 datetime stamps?
Not certain at the moment but I'm not really worried. This should be
pretty straight forward.
> Hendrik: Can you answer these for the Evolution connector and Syncphony?
> ALL: Who can answer for the other clients?
> Best regards,
> Georg C. F. Greve
> Chief Executive Officer
> Kolab Systems AG
> Zürich, Switzerland
> e: greve at kolabsys.com
> t: +41 78 904 43 33
> w: http://kolabsys.com
> pgp: 86574ACA Georg C. F. Greve
Developer, Kolab Systems AG
e: wrobel at kolabsys.com
t: +49 700 6245 0000
pgp: 9703 43BE
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