From: Thorsten Jolitz <tjolitz@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: Getting heading properties from org-element
Date: Sun, 05 Jul 2015 21:15:20 +0200 [thread overview]
Message-ID: <87mvzact6f.fsf@gmail.com> (raw)
In-Reply-To: m21tgmjypp.fsf@andrew.cmu.edu
John Kitchin <jkitchin@andrew.cmu.edu> writes:
Hi John,
> Is there a convenient way to get the properties of a headline from
> org-element? I see they are in the parsed output, e.g. as :CATEGORIES
> emacs,org :DATE today, but I didn't see a way to get them if I don't
> already know what they are.
>
> I know how to get these from an org file, e.g. org-entry-properties, and
> I am looking for something like this from an element.
in my org-dp repo I have these two functions:
#+BEGIN_SRC emacs-lisp
(defun org-dp-contents (&optional element interpret-p no-properties-p)
"Get contents of element-at-point or ELEMENT.
If INTERPRET-P is non-nil, call `org-element-interpret-data' on
return value. Call `org-no-properties' on result if
NO-PROPERTIES-P is non-nil too."
(let* ((elem (cond
((and (not (booleanp element))
(symbolp element))
(eval element))
((stringp element)
(let ((el (car (read-from-string element))))
(when (consp el) el)))
((consp element) element)
(t (org-element-at-point))))
(beg (org-element-property :begin elem))
(end (org-element-property :end elem))
(type (org-element-type elem)))
(if (and beg end)
(save-restriction
(narrow-to-region beg end)
(let ((cont (org-element-map
(org-element-parse-buffer 'object)
type 'org-element-contents nil t)))
(cond
((and interpret-p no-properties-p)
(org-no-properties (org-element-interpret-data cont)))
(interpret-p
(org-element-interpret-data cont))
(t cont))))
(org-element-contents elem))))
(defun org-dp-filter-node-props (filter &optional negate-p verbose-p)
"Return filtered node-properties.
FILTER should be either a symbol from `org-dp-prop-classes', the
symbol `org' (matching the union of all `org-dp-prop-classes' and
customizable variable `org-dp-misc-props'), a list of keys as
strings, or a (single) regexp-string. If NEGATE-P is non-nil, the
properties not matched by the filter are returned. If VERBOSE-P
is non-nil, a message is printed if no property-drawer is found,
otherwise nil is returned."
(let ((props (save-excursion
(and
(or (org-at-heading-p)
(outline-previous-heading))
(re-search-forward
org-property-drawer-re
(save-excursion
(org-end-of-meta-data-and-drawers)
(point))
'NOERROR 1)
(progn
(goto-char (match-beginning 0))
(org-dp-contents)))))
filtered-props)
(if (not props)
(when verbose-p
(message
"Could not find properties at point %d in buffer %s."
(point) (current-buffer)))
(org-element-map props 'node-property
(lambda (--prop)
(let* ((key (org-element-property :key --prop))
(val (org-element-property :value --prop))
(memberp (case filter
((special custom default file global)
(member-ignore-case
key
(eval
(cdr-safe
(assoc filter
org-dp-prop-classes)))))
(org (member-ignore-case
key (org-dp-org-props)))
(t (cond
((stringp filter)
(string-match filter key))
((consp filter)
(member-ignore-case key filter))
(t (error "Not a valid filter: %s"
filter)))))))
(when (or (and negate-p (not memberp))
(and (not negate-p) memberp))
(setq filtered-props
(cons (cons key val) filtered-props))))))
filtered-props)))
#+END_SRC
maybe thats somehow related...
--
cheers,
Thorsten
next prev parent reply other threads:[~2015-07-05 19:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-05 17:33 Getting heading properties from org-element John Kitchin
2015-07-05 19:15 ` Thorsten Jolitz [this message]
2015-07-06 15:23 ` John Kitchin
2015-07-06 15:36 ` Nicolas Goaziou
2015-07-06 16:03 ` John Kitchin
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