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From: David Maus <maus.david@gmail.com>
To: Emacs Orgmode Mailinglist <emacs-orgmode@gnu.org>
Subject: [Worg] Addition to org-hacks: Remove redundant tags
Date: Mon, 25 Jan 2010 20:23:38 +0100	[thread overview]
Message-ID: <87636q56px.wl%maus.david@gmail.com> (raw)


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Hello,

Attached patch adds a section to the org-hacks page of Worg with a
function that removes redundant tags, that is: tags that are inherited
by a parent headline or the #+FILETAGS headline and local to a
headline.

This function is useful for me as I generally use tags to denote a
todo's context (priv for private, work for work related etc.) and in
addition split my agenda files by context, too (work.org,
private.org). If I file new todo headlines using `org-remember' they
go in a central file (bucket.org) and I tag them so they show up on
tags searches.  After refiling the context denoting tags are
duplicated -- hence I wrote this little function to remove them:

(defun dmj/org-remove-redundant-tags ()
  "Remove redundant tags of headlines in current buffer.

  A tag is considered redundant if it is local to a headline and
  inherited by a parent headline."
  (interactive)
  (when (eq major-mode 'org-mode)
    (save-excursion
      (org-map-entries
       '(lambda ()
	  (let ((alltags (split-string (org-entry-get (point) "ALLTAGS") ":"))
		local inherited tag)
	    (dolist (tag alltags)
	      (if (get-text-property 0 'inherited tag)
		  (push tag inherited) (push tag local)))
	    (dolist (tag local)
	      (if (member tag inherited) (org-toggle-tag tag 'off)))))
       t nil))))

Regards

 -- David

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From 238f79b75373e86de1fc347fbb759b1456b438f6 Mon Sep 17 00:00:00 2001
From: David Maus <maus.david@gmail.com>
Date: Mon, 25 Jan 2010 19:24:44 +0100
Subject: [PATCH] org-hacks: Remove redundant tags (i.e. tags that are inherited and
 local) of headlines

---
 org-hacks.org |   28 ++++++++++++++++++++++++++++
 1 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/org-hacks.org b/org-hacks.org
index 2b8fa57..6d0c915 100644
--- a/org-hacks.org
+++ b/org-hacks.org
@@ -841,3 +841,31 @@ using ido):
 To browse your org attachments using ido fuzzy matching and/or the
 completion buffer, invoke ido-find-file as usual (=C-x C-f=) and then
 press =C-;=.
+
+* Remove redundant tags of headlines
+  -- David Maus
+
+A small function that processes all headlines in current buffer and
+removes tags that are local to a headline and inherited by a parent
+headline or the #+FILETAGS: statement.
+
+#+BEGIN_SRC emacs-lisp
+  (defun dmj/org-remove-redundant-tags ()
+    "Remove redundant tags of headlines in current buffer.
+  
+  A tag is considered redundant if it is local to a headline and
+  inherited by a parent headline."
+    (interactive)
+    (when (eq major-mode 'org-mode)
+      (save-excursion
+        (org-map-entries 
+         '(lambda ()
+            (let ((alltags (split-string (org-entry-get (point) "ALLTAGS") ":"))
+                  local inherited tag)
+              (dolist (tag alltags)
+                (if (get-text-property 0 'inherited tag)
+                    (push tag inherited) (push tag local)))
+              (dolist (tag local)
+                (if (member tag inherited) (org-toggle-tag tag 'off)))))
+         t nil))))
+#+END_SRC
-- 
1.6.5


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             reply	other threads:[~2010-01-25 19:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-25 19:23 David Maus [this message]
2010-01-26  5:34 ` [Worg] Addition to org-hacks: Remove redundant tags Manish
2010-01-26 16:22   ` David Maus
2010-01-26 16:54     ` Manish

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