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From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
To: John Kitchin <jkitchin@andrew.cmu.edu>
Cc: org-mode-email <emacs-orgmode@gnu.org>
Subject: Re: creating new #+KEYWORD: variables
Date: Sat, 10 Nov 2018 19:58:41 +0100	[thread overview]
Message-ID: <87r2fsbvz2.fsf@nicolasgoaziou.fr> (raw)
In-Reply-To: <CAJ51ETqvaExqXZcJ4CCJg5mGVUD09Atgt2jeBR7MJh1QzzQ+YQ@mail.gmail.com> (John Kitchin's message of "Sat, 10 Nov 2018 12:11:36 -0500")

Hello,

John Kitchin <jkitchin@andrew.cmu.edu> writes:

> You can retrieve keywords in the org-file like this:
>
> (defun get-keyword (key)
>   (org-element-map (org-element-parse-buffer) 'keyword
>     (lambda (k)
>       (when (string= key (org-element-property :key k))
> (org-element-property :value k)))
>     nil t))

As a minor addendum, 

    (org-element-parse-buffer 'element)

is more efficient in this case. 

An even more efficient way to retrieve keywords, assuming buffer is not
already parsed, would be:

    (org-with-point-at 1
      (let ((case-fold-search t)
            (regexp (format "^[ \t]*#\\+%s:" key))
            (result nil))
        (while (re-search-forward regexp nil t)
          (let ((element (org-element-at-point)))
            (when (eq 'keyword (org-element-type element))
              (push (org-element-property :value element) result))))
        result))

Regards,

-- 
Nicolas Goaziou

next prev parent reply	other threads:[~2018-11-10 18:58 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-09  3:32 creating new #+KEYWORD: variables Matt Price
2018-11-09  9:29 ` Diego Zamboni
2018-11-10  2:24   ` Matt Price
2018-11-10  7:22 ` Nicolas Goaziou
2018-11-10 16:17   ` Matt Price
2018-11-10 17:11     ` John Kitchin
2018-11-10 18:58       ` Nicolas Goaziou [this message]
2018-11-15 12:15         ` Matt Price
2018-11-15 19:51           ` John Kitchin
2018-11-12  9:11   ` Diego Zamboni

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