Re: Re: Organizing a students live

[Carsten Dominik <carsten.dominik@gmail.com>]

Hi Daniel,

On Dec 27, 2009, at 1:51 AM, Daniel Martins wrote:

> I liked the idea of org-diary-class!

I have added the function now to org-agenda.el

>
> About avoiding holidays and certain weeks:
>
> I used remind and wyrd for a while  and they are a quite good software
> for dealing with such appts.
>
> There we have the OMIT function where we determine holidays and other
> non-working days including Sat and Sundays
>
>
> Normally we have an OMIT list at the beginning of file
>
> Some functions simply omit those dates
>
> Other expressions use another keyword AFTER (or BEFORE)  to change
> OMIT behaviour
>
> like
> 23 Mar AFTER OMIT "Bank payment"
>
> eg If 23 Mar is in Saturday it will appear in Monday
>
> This preamble is just to say 2 things:
>
> 1) remind/wyrd could be used as a benchmark for some of the calendar
> isuues we have
>
> 2) I do not know if the week number in a year is a practical way of
> setting exceptions to org-diary-class
>
> Daniel
>
> PS Wyrd page is
>
> http://pessimization.com/software/wyrd/

Interesting.  But too complex for now - and I actually do prefer local  
control.

- Carsten


>
>
>
>
> 2009/12/26 Carsten Dominik <carsten.dominik@gmail.com>:
>> Hi Daniel,
>>
>> I think it is a good idea to add such a function to org-mode.  But I
>> am not sure if skipping holidays is the best, because Universities
>> also have lecture-free weeks etc.
>>
>> So I am more thinking about a function like this (untested)
>>
>> (defun org-diary-class (m1 d1 y1 m2 d2 y2 dayname &rest skip-weeks)
>>  "Entry applies if date is between dates on DAYNAME, but skips SKIP- 
>> WEEKS.
>> Order of the parameters is M1, D1, Y1, M2, D2, Y2 if
>> `european-calendar-style' is nil, and D1, M1, Y1, D2, M2, Y2 if
>> `european-calendar-style' is t.  The weeks are ISO week numbers where
>> the item should not apply."
>>  (let* ((date1 (calendar-absolute-from-gregorian
>>                 (if european-calendar-style
>>                     (list d1 m1 y1)
>>                   (list m1 d1 y1))))
>>         (date2 (calendar-absolute-from-gregorian
>>                 (if european-calendar-style
>>                     (list d2 m2 y2)
>>                   (list m2 d2 y2))))
>>         (d (calendar-absolute-from-gregorian date)))
>>    (and
>>     (<= date1 d)
>>     (<= d date2)
>>     (= (calendar-day-of-week date) dayname)
>>     (or (not skip-weeks)
>>         (progn
>>           (require 'cal-iso)
>>           (not (member (car (calendar-iso-from-absolute d)) skip- 
>> weeks))))
>>     entry)))
>>
>>
>> What do you think?
>>
>> - Carsten
>>
>> On Dec 21, 2009, at 4:54 PM, Daniel Martins wrote:
>>
>>> In fact, it helps! Thanks
>>>
>>> However a sentence like this:
>>>
>>>
>>> +# a class that meets every Monday evening between February 16 and
>>> April 20, 2009
>>> ** Class 7:00pm-9:00pm
>>> <%%(and (= 1 (calendar-day-of-week date)) (diary-block 2 16 2009 4  
>>> 20
>>> 2009))>
>>>
>>> is not an example of simplicity and visibility for a quite common  
>>> feature!
>>>
>>> Maybe as a suggestion we could encapsulate such a huge expression  
>>> in a
>>> simpler org-mode function ?
>>>
>>> Daniel
>>>
>>>
>>> PS In
>>>
>>> http://www.emacswiki.org/cgi-bin/wiki/DiaryMode#toc12
>>>
>>> I found another suggestion which I do not know how to include in  
>>> org-mode
>>>
>>>
>>> ------------------------------------
>>> Schedule
>>>
>>> If you want to write a schedule for school or university, you need  
>>> to
>>> define a block (it’s derived from diary-block) between two dates  
>>> and a
>>> weekday. The following function also recognizes holidays and won’t
>>> send you to school on those days… :)
>>>
>>>   (defun diary-schedule (m1 d1 y1 m2 d2 y2 dayname)
>>>     "Entry applies if date is between dates on DAYNAME.
>>>   Order of the parameters is M1, D1, Y1, M2, D2, Y2 if
>>>   `european-calendar-style' is nil, and D1, M1, Y1, D2, M2, Y2 if
>>>   `european-calendar-style' is t. Entry does not apply on a  
>>> history."
>>>     (let ((date1 (calendar-absolute-from-gregorian
>>>                   (if european-calendar-style
>>>                       (list d1 m1 y1)
>>>                     (list m1 d1 y1))))
>>>           (date2 (calendar-absolute-from-gregorian
>>>                   (if european-calendar-style
>>>                       (list d2 m2 y2)
>>>                     (list m2 d2 y2))))
>>>           (d (calendar-absolute-from-gregorian date)))
>>>       (if (and
>>>            (<= date1 d)
>>>            (<= d date2)
>>>            (= (calendar-day-of-week date) dayname)
>>>            (not (check-calendar-holidays date))
>>>            )
>>>            entry)))
>>>
>>> Then: "&%%(diary-schedule 22 4 2003 1 8 2003 2) 18:00 History"
>>>
>>>
>>> ------------------------------------
>>>
>>>
>>>
>>> 2009/12/20 Matt Lundin <mdl@imapmail.org>:
>>>>
>>>> Daniel Martins <danielemc@gmail.com> writes:
>>>>
>>>>> All academics here present (including of course Carsten) suffer  
>>>>> from
>>>>> the same problem, I think
>>>>>
>>>>>
>>>>> *** Math classes
>>>>> <2009-12-10 Thu 11:00-14:00 +1w>
>>>>>
>>>>>
>>>>> will repeat forever and ever...
>>>>>
>>>>> We need to create a schedule for a period.
>>>>>
>>>>> The package "remind" (and its simple interface "wyrd") do this job
>>>>> wonderfully but I do not know how to deal with this problem in Org
>>>>> mode
>>>>
>>>> The following FAQ should help:
>>>>
>>>> http://orgmode.org/worg/org-faq.php#diary-sexp-in-org-files
>>>>
>>>> - Matt
>>>>
>>>
>>
>>

- Carsten