Re: [O] org-clock-select-task: how does it work?

[Tory S. Anderson]

Excellent answers, on both fronts. Thanks! I couldn't spot 
`org-clock-history-length` in the code. That does the trick!

Thanks for the answer about the "?A". It's devilishly hard to Google that kind 
of thing... time to RTM. 

Marco Wahl <address@hidden> writes:

> Hi!
>
> address@hidden (Tory S. Anderson) writes:
>
>> 2) As Peter originally mentioned, I see only five tasks on the list; I
>> have more than that each week. Can this be expanded with some
>> variable?
>
> AFAICS this is variable org-clock-history-length.
>
>> Having looked into problem 2 by going to `org-clock-select-task` in
>> 'org-clock.el', I found the following which is mostly beyond my
>> current elisp capabilities:
>>
>>      (insert (org-add-props "Recent Tasks\n" nil 'face 'bold))
>>      (mapc
>>       (lambda (m)
>>         (when (marker-buffer m)
>>           (setq i (1+ i)
>>                 s (org-clock-insert-selection-line
>>                    (if (< i 10)
>>                        (+ i ?0)
>>                      (+ i (- ?A 10))) m))
>>           (if (fboundp 'int-to-char) (setf (car s) (int-to-char (car s))))
>>           (push s sel-list)))
>>       och)
>>
>> While I'd love it if someone could explain to me what the "?" operator
>> means with "?0" and "?A", one thing I get out of this is that a list
>> length of something less than 10 seems hardcoded (right?). What would
>> it take to be able customize this with a variable?
>
> ?0 is the integer representing character "0" see (info "(elisp)Basic
> Char Syntax").  The above is a possibility to map the numbers 0, 1,...,
> 9, 10, ... onto the characters '1', '2', ..., 'A', 'B', .... AFAICS.
>
> The letters should come into play when you have more than 9 items in the
> clock-history.
>
>
> HTH,  Marco