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From: Martin Marshall <law@martinmarshall.com>
To: emacs-orgmode@gnu.org
Subject: [PATCH] org-ctags: Fix regexp to not break radio targets
Date: Sun, 11 Feb 2024 13:00:48 -0500
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--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=0001-org-ctags-Fix-regexp-to-not-break-radio-target-links.patch
Content-Description: Fix regexp for radio targets

>From 9b9e8ead6c175c76e4f37273a4e4f29b8e41b4f9 Mon Sep 17 00:00:00 2001
From: Martin Marshall <law@martinmarshall.com>
Date: Sun, 11 Feb 2024 12:36:46 -0500
Subject: [PATCH] org-ctags: Fix regexp to not break radio-target links

* org-ctags.el (org-ctags-tag-regexp): Add left angle-bracket to
excluded characters for tag text.
---
 lisp/org-ctags.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/org-ctags.el b/lisp/org-ctags.el
index e56ed9cd8..6431a2765 100644
--- a/lisp/org-ctags.el
+++ b/lisp/org-ctags.el
@@ -149,7 +149,7 @@
 (defvar org-ctags-enabled-p t
   "Activate ctags support in org mode?")
 
-(defvar org-ctags-tag-regexp "/<<([^>]+)>>/\\1/d,definition/"
+(defvar org-ctags-tag-regexp "/<<([^<>]+)>>/\\1/d,definition/"
   "Regexp expression used by ctags external program.
 The regexp matches tag destinations in Org files.
 Format is: /REGEXP/TAGNAME/FLAGS,TAGTYPE/
-- 
2.39.2


--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

This updates `org-ctags-tag-regexp' to avoid adding broken entries for
radio targets in the TAGS file.

With the old regexp, org-ctags would add radio targets to the TAGS file
with an extra angle bracket at the beginning.  So a target of
"<<<radio=C2=A0target>>>" would be entered in the TAGS file as
"<radio=C2=A0target", instead of just "radio=C2=A0target".

This meant that when you click on the linked text "radio=C2=A0target", the
link wouldn't match any of the TAGS file entries.  So org-ctags would
inquire about rebuilding the TAGS file.  Then, when it still couldn't
match the target, it would attempt to be helpful and ask about adding a
new target to the end of your org file.  Only after you declined that,
it would finally allow Org-mode to move point to the radio target as
intended.

This patch allows radio targets to coexist with org-ctags and to even
use them with org-ctags in external files, in the same manner as
dedicated targets.

--=20
Best regards,
Martin Marshall

--=-=-=--