Re: Re: user-defined agenda sorting

[Samuel Wales <samologist@gmail.com>]

Thanks.

Just to confirm, to get the inherited tags and the priority letter, I
have to go to the original buffer?

On Fri, Jun 19, 2009 at 08:39, Carsten Dominik<carsten.dominik@gmail.com> wrote:
>
> On Jun 16, 2009, at 11:13 AM, Samuel Wales wrote:
>
>> If my skills at cargo-cult programming can summon the air force, then
>> (get-text-property 1 'priority a/b] will work.  But I'm not sure if
>> there are functions for parsing tags etc.  Testing seems difficult as
>> cut and paste of headline strings seems to not include properties.
>>
>> Thanks.
>>
>> On Tue, Jun 16, 2009 at 01:57, Samuel Wales<samologist@gmail.com> wrote:
>>>
>>> I have a sort comparison function for the outline, which
>>> returns a number.  This works well.
>>>
>>> The documentation for user-defined agenda sorting says "This
>>> function must receive two arguments, agenda entry a and b."
>>> I am not sure what a and b are, strings?
>>>
>>> My function gets priorities, tags, and todo kw assuming point is on a
>>> headline.  It uses org functions to get those.  The org code for
>>> agenda sorting uses text properties.
>>>
>>> How to adapt my function to get the following information: priorities
>>> as [?A..?C], inherited and local tags as a list, and todo kw as a
>>> string?
>>>
>>> Is there a place where how to parse a and b is documented?
>
>
> Not really.  `a' and `b' are the strings that are inserted into the agenda,
> each line in the agenda may be `a' or `b'.
> The strings are loaded with text properties carrying all kinds of
> information.
> You can look at these properties by pressing `C-u C-x =' on a line in the
> agenda.
> If the information you want is not there, you can take the
> org-morker and org-hd-marker properties to visit the original entries and
> get the needed info from there.  And example for this is in
> `org-cmp-todo-state'
> which returns to the original buffer in order to get the buffer-local
> list of TODO states from there.
>
> All the org-cmp-.... functions contain examples on how the text properties
> are used from comparing entries.
>
> The reason why these are in different text properties is historic, because I
> added this stuff one by one, over time.  Looking back, a single property
> list
> would have been better for tasks like the one you are working on.
>
> HTH
>
> - Carsten
>
>>>
>>> Thanks.
>>>
>>> --
>>> Myalgic encephalomyelitis denialism is causing death and severe
>>> suffering,
>>> worse than MS.  Conflicts of interest are destroying research.  /You/ can
>>> get the disease at any time permanently.  Do science and justice matter
>>> to
>>> you?  http://www.meactionuk.org.uk/What_Is_ME_What_Is_CFS.htm
>>>
>>
>>
>>
>> --
>> Myalgic encephalomyelitis denialism is causing death and severe suffering,
>> worse than MS.  Conflicts of interest are destroying research.  /You/ can
>> get the disease at any time permanently.  Do science and justice matter to
>> you?  http://www.meactionuk.org.uk/What_Is_ME_What_Is_CFS.htm
>>
>>
>> _______________________________________________
>> Emacs-orgmode mailing list
>> Remember: use `Reply All' to send replies to the list.
>> Emacs-orgmode@gnu.org
>> http://lists.gnu.org/mailman/listinfo/emacs-orgmode
>
>



-- 
Myalgic encephalomyelitis denialism is causing death and severe suffering,
worse than MS.  Conflicts of interest are destroying research.  /You/ can
get the disease at any time permanently.  Do science and justice matter to
you?  http://www.meactionuk.org.uk/What_Is_ME_What_Is_CFS.htm