* More export filter examples out there?
@ 2015-03-17 22:15 Allen S. Rout
2015-03-17 22:53 ` Nicolas Goaziou
0 siblings, 1 reply; 2+ messages in thread
From: Allen S. Rout @ 2015-03-17 22:15 UTC (permalink / raw)
To: emacs-orgmode
I'm trying to accomplish a custom export task which I'd hoped to be
pretty simple: something like:
In each status section, only export the first child headline.
After several dumb ideas, I decided that doing it with a filter was
probably the Right Place. I built a filter intended to be used on
:filter-parse-tree
and attempted to express:
If you're parent is a headline
and your parent's title is 'Status'
and you're not the first of your siblings
then don't be included. I've added my malfunctioning filter below,to
clearly display my "thinking".
I don't seem to be able to get the title as a string. org-export-data
seems to expect a different 'info' than the 'info' present at filter
time. I get complaints about
org-export-data: Wrong type argument: hash-table-p, nil
if I uncomment the attempt to string compare the title.
I'm finding my experience with XSLT to be a handicap; I bring
expectations to the table that are misguided. Is there a pretty-printer
or other dump for the export parse tree? The dump I sometimes get in
*Messages* is not all that readable.
Should I be thinking of this as a parse-table operation, or should I be
reasoning about it from :filter-headline?
More generally, anyone got some art for some similar reconstruction
they've done, which they might like to share?
- Allen S. Rout
(defun ox-asr-only-first-status ( tree backend info )
" Arrange that, under headlines marked 'Status', only the first of
them is included.
"
( org-element-map tree (remq 'item org-element-all-elements)
( lambda (e)
( let* ( ( parent ( org-element-property :parent e) )
( first-sib ( car (org-element-contents parent )))
( parent-type ( org-element-type parent ))
( parent-title ( org-element-property :title e))
; ( pt-string ( org-export-data parent-title info ))
)
(if (and
( eq parent-type 'headline )
( not (eq e first-sib ))
; ( string= (org-export-data parent-title) "Status")
)
( org-element-set-contents e "-->" parent-title "<--- "
(org-element-contents e))
)
)
)
)
tree
)
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: More export filter examples out there?
2015-03-17 22:15 More export filter examples out there? Allen S. Rout
@ 2015-03-17 22:53 ` Nicolas Goaziou
0 siblings, 0 replies; 2+ messages in thread
From: Nicolas Goaziou @ 2015-03-17 22:53 UTC (permalink / raw)
To: Allen S. Rout; +Cc: emacs-orgmode
Hello,
"Allen S. Rout" <asr@ufl.edu> writes:
> I'm trying to accomplish a custom export task which I'd hoped to be
> pretty simple: something like:
>
>
> In each status section, only export the first child headline.
>
>
> After several dumb ideas, I decided that doing it with a filter was
> probably the Right Place. I built a filter intended to be used on
>
> :filter-parse-tree
>
> and attempted to express:
>
> If you're parent is a headline
> and your parent's title is 'Status'
> and you're not the first of your siblings
>
> then don't be included. I've added my malfunctioning filter below,to
> clearly display my "thinking".
Untested:
(defun ox-asr-only-first-status (tree backend info)
(org-element-map tree 'headline
(lambda (h)
(let ((parent (org-export-get-parent-headline h)))
(when (and parent
(string= (org-element-property :raw-value parent) "Status")
(not (org-export-first-sibling-p h info)))
(org-element-extract-element h)))))
tree)
> I don't seem to be able to get the title as a string.
Use `:raw-value' property.
> org-export-data seems to expect a different 'info' than the 'info'
> present at filter time. I get complaints about
>
> org-export-data: Wrong type argument: hash-table-p, nil
>
> if I uncomment the attempt to string compare the title.
Indeed. One cannot use `org-export-data' during parse tree filtering.
Export output really depends on the tree and the options, which are
being re-arranged.
Regards,
--
Nicolas Goaziou
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2015-03-17 22:52 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-03-17 22:15 More export filter examples out there? Allen S. Rout
2015-03-17 22:53 ` Nicolas Goaziou
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).