Re: org-element-property syntax (turning strings into keyword symbols)

[Matt Price <moptop99@gmail.com>]

On Sat, Nov 9, 2013 at 2:48 AM, Nicolas Goaziou <n.goaziou@gmail.com> wrote:
> Hello,
>
> Matt Price <moptop99@gmail.com> writes:
>
>> This works fine.  Now when I come back to this buffer I want to check
>> whether any of the properties are actually there.  So I am trying
>> something like this:
>>
>> (let ((hasprops nil))
>>   (dolist prop org-writers-room-properties
>>       (if (org-element-property (car prop) (org-element-at-point))
>>            (setq hasprops t))
>>       (if (hasprops)
>>           (etc.))
>>
>> However this doesn't work because (1) the car of "prop" (which is in
>> fact the property name) is not necessarily capitalized and
>
> Then `upcase' the property name first. I assume you will only refer to
> user-defined properties so their equivalent keyword will always be in
> upper cases.
>
>> (2) the "property" parameter of org-element-property is not a string,
>> but a "keyword symbol". Somehow I have to turn my string into the
>> appropriate keyword symbol. Does anyone know how to do this?
>
> Use `intern'.
>
> For efficiency reasons, I also suggest to store `org-element-at-point'
> in a variable instead of computing it again each time you are looking
> for a property:
>
>   (let ((hashprops nil)
>         (element (org-element-at-point)))
>     (dolist (prop org-writers-room-properties)
>       (if (org-element-property (intern (concat ":" (upcase prop))) element)
>           ...)))
>
ah, thank you so much for this. I don't know how I would ever have
found intern on my own.  makes my life much easier!

>
> Regards,
>
> --
> Nicolas Goaziou