[Exporter] How to extract timestamp from headline's title?

[Exporter] How to extract timestamp from headline's title?

[Thorsten Jolitz]

Hi List, 

when writing an exporter backend, I wonder what is the canonical way to
extract the (optional) timestamp element from a headline's :title
attribute (which holds a secondary string)?

I could do something like this to extract the timestamp from the headline

#+begin_src emacs-lisp
  (let ((ttl (org-element-property :title headline)))
    (and (> (length ttl) 1)
         (car (last ttl))))
#+end_src

but I hope there is a more straight-forward and reliable way to do this?

-- 
cheers,
Thorsten

Re: [Exporter] How to extract timestamp from headline's title?

[Nicolas Goaziou]

Hello,

Thorsten Jolitz <tjolitz@gmail.com> writes:

> when writing an exporter backend, I wonder what is the canonical way to
> extract the (optional) timestamp element from a headline's :title
> attribute (which holds a secondary string)?
>
> I could do something like this to extract the timestamp from the headline
>
> #+begin_src emacs-lisp
>   (let ((ttl (org-element-property :title headline)))
>     (and (> (length ttl) 1)
>          (car (last ttl))))
> #+end_src
>
> but I hope there is a more straight-forward and reliable way to do
> this?

You can map over a secondary string. E.g.:

 (org-element-map (org-element-property :title headline) 'timestamp
 'identity)


Regards,

-- 
Nicolas Goaziou

Re: [Exporter] How to extract timestamp from headline's title?

[Thorsten Jolitz]

Nicolas Goaziou <n.goaziou@gmail.com> writes:

Hello,

> Thorsten Jolitz <tjolitz@gmail.com> writes:
>
>> when writing an exporter backend, I wonder what is the canonical way to
>> extract the (optional) timestamp element from a headline's :title
>> attribute (which holds a secondary string)?
>>
>> I could do something like this to extract the timestamp from the headline
>>
>> #+begin_src emacs-lisp
>>   (let ((ttl (org-element-property :title headline)))
>>     (and (> (length ttl) 1)
>>          (car (last ttl))))
>> #+end_src
>>
>> but I hope there is a more straight-forward and reliable way to do
>> this?
>
> You can map over a secondary string. E.g.:
>
>  (org-element-map (org-element-property :title headline) 'timestamp
>  'identity)

I knew there must be a better way to do this - thanks for the tip!

-- 
cheers,
Thorsten