Re: bug#9695: allowed date range

[Eric S Fraga <e.fraga@ucl.ac.uk>]

Carsten Dominik <carsten.dominik@gmail.com> writes:

> On 13.10.2011, at 09:57, Tassilo Horn wrote:
>
>> Eric S Fraga <e.fraga@ucl.ac.uk> writes:
>> 
>> Hi Eric,
>> 
>>>> Oh, now I see what's wrong.  All time stamps consist of the date and
>>>> then the day's name abbreviation, which is missing with your example.
>>>> Correct would be
>>>> 
>>>>  <2011-10-17 Mon>--<2011-10-30 Sun>
>>> 
>>> Although the day is optional according to the regexp.  I would
>>> definitely like to have the regexp with the space optional as well as
>>> there are cases where I want to type the date in directly (not in org
>>> mode for whatever reason).  In those cases, it is easy to type
>>> 2011-01-01 or whatever but it's not necessarily trivial to determine
>>> the day of the week...
>> 
>> Yes, I agree, although you can use org-time-stamp everywhere (in emacs).
>> And you can actually insert timestamps simply by writing
>> 
>>  <2011-10-13 >
>> 
>> with the whitespace to make it a valid timestamp.  That will be shown as
>> day entry in the agenda, and you might have typed it in using some
>> non-emacs text editor on you phone.
>
>
>> 
>> Now, back in org-mode, simply S-<up> and S-<down> on any number, and et
>> voila, the missing day name abbrev is added automatically.
>> 
>>> Actually, interesting thought experiment: does org actually do any
>>> consistency checks, comparing the date and the day of the week?
>> 
>> No, I don't think so.  Manipulating and creating timestamps using the
>> provided commands ensures their correctness, but for actual calculation
>> the day names are ignored.  It's just for humans.
>
> Just to confirm, this is correct.
>
> - Carsten
>

so, in that case, it does make sense to allow date stamps without the
day!

(and I see that Carsten has already provided a patch for this :-)

-- 
: Eric S Fraga (GnuPG: 0xC89193D8FFFCF67D) in Emacs 24.0.90.1
: using Org-mode version 7.7 (release_7.7.380.g54d7df.dirty)