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Re: [O] Restricting admisible tags depending on header
From: |
Óscar Fuentes |
Subject: |
Re: [O] Restricting admisible tags depending on header |
Date: |
Sat, 04 Jun 2016 23:26:46 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.0.92 (gnu/linux) |
Óscar Fuentes <address@hidden> writes:
> I'll like to offer only certain tags depending on the contents of the
> current header. For instance, if the header is
>
> * Status
>
> I want to see only "open" and "closed" on the options shown by
> org-fast-tag-selection.
>
> Currently I define quite a lot of tags with #+TAGS:, most of them are
> intended to be assigned to a specific header. Having so many tags
> displayed by org-fast-tag-selection is confusing, error-prone and breaks
> the selection method (org-fast-tag-selection runs out of letters).
>
> I'm thinking on advising org-fast-tag-selection and prune the list of
> acceptable tags before calling the real function, but maybe there is a
> better method.
Thanks to all who responded, both off- and on-list.
At the end, I opted for advising org-fast-tag-selection. Now, for a
given heading, a tag group with the same name provides the admisible
tags:
#+TAGS: [ Status : { open closed } ]
#+TAGS: [ Status : { done(d) postponed cancelled wontfix worksforme invalid } ]
#+TAGS: [ Type : { task defect enhancement feedback test } ]
#+TAGS: [ Severity : { critical major minor cosmetic } ]
#+TAGS: [ Priority : { top high medium low } ]
* Status
* Type
* Severity
* Priority
Code:
(defun ofv-issues-tags-for-heading (h)
(setq h (org-no-properties h))
(let (check-name-p collect-tags-p specific-tags)
(dolist (tag org-tag-alist)
(cond
((eq (car tag) ':endgrouptag)
(setq collect-tags-p nil))
((eq (car tag) ':startgrouptag)
(setq check-name-p t))
(collect-tags-p
(push tag specific-tags))
(check-name-p
(setq collect-tags-p (equal (car tag) h))
(setq check-name-p nil))))
specific-tags))
(defun ofv-issues-org-fast-tag-selection (args)
;; The `table' parameter of `org-fast-tag-selection' contains a
;; uniquified list, which removes duplicated group tag names.
;; `ofv-issues-tags-for-heading' uses the contents of
;; `org-tag-alist'.
(let ((specific-tags (ofv-issues-tags-for-heading (org-get-heading t t))))
(when specific-tags
(setcar (nthcdr 2 args) (nreverse specific-tags))))
args)
(advice-add 'org-fast-tag-selection :filter-args
'ofv-issues-org-fast-tag-selection)