* Best way to check if a subtree with a property exists?
@ 2017-12-01 14:00 Kaushal Modi
2017-12-01 15:17 ` Kaushal Modi
0 siblings, 1 reply; 2+ messages in thread
From: Kaushal Modi @ 2017-12-01 14:00 UTC (permalink / raw)
To: emacs-orgmode
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Hello,
I'd like to check if the current Org file has at least one subtree with a
specific property (EXPORT_FILE_NAME in my case).
What's the most efficient way to do that?
Below works.. but I can see that it's not efficient.. it maps through the
whole Org file:
(let ((total-valid-subtrees
(let ((valid-subtrees (org-map-entries
(lambda ()
t) ;Return value does not matter here
;; Only map through subtrees where
;; EXPORT_FILE_NAME property is not
;; empty.
"EXPORT_FILE_NAME<>\"\"")))
(safe-length valid-subtrees))))
(if (= 0 total-valid-subtrees)
(message "invalid")
(message "valid")))
So,
- How can I quit out of org-map-entries as soon as the first matching entry
is found?
- What's a better way to do the same?
Thanks.
--
Kaushal Modi
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Best way to check if a subtree with a property exists?
2017-12-01 14:00 Best way to check if a subtree with a property exists? Kaushal Modi
@ 2017-12-01 15:17 ` Kaushal Modi
0 siblings, 0 replies; 2+ messages in thread
From: Kaushal Modi @ 2017-12-01 15:17 UTC (permalink / raw)
To: emacs-orgmode
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On Fri, Dec 1, 2017 at 9:00 AM Kaushal Modi <kaushal.modi@gmail.com> wrote:
> - How can I quit out of org-map-entries as soon as the first matching
> entry is found?
>
I think this is much better:
(let ((valid-found
(catch 'break
(org-map-entries
(lambda ()
(throw 'break t))
;; Only map through subtrees where
;; EXPORT_FILE_NAME property is not
;; empty.
"EXPORT_FILE_NAME<>\"\""))))
(message "valid-found: %S" valid-found))
- What's a better way to do the same?
>
Comments are welcome :)
Thanks.
--
Kaushal Modi
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