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From: Kaushal Modi <kaushal.modi@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Best way to check if a subtree with a property exists?
Date: Fri, 01 Dec 2017 14:00:43 +0000	[thread overview]
Message-ID: <CAFyQvY3p7W=mLqkxFwes8rF8aFX8ngj62D3Mc8OMTGUgcE3+aw@mail.gmail.com> (raw)

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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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next             reply	other threads:[~2017-12-01 15:58 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-01 14:00 Kaushal Modi [this message]
2017-12-01 15:17 ` Best way to check if a subtree with a property exists? Kaushal Modi

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