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[PATCH] Re: [feature request] startup variable for link display

From: Ihor Radchenko
Subject: [PATCH] Re: [feature request] startup variable for link display
Date: Fri, 22 Dec 2023 12:07:29 +0000

"Fraga, Eric" <e.fraga@ucl.ac.uk> writes:

> Assuming I have not missed something, is there a variable I can set on
> visiting an org buffer/file that ensures that links are displayed fully?
> Once I've loaded an org file, I can
>    M-x org-toggle-link-display RET.
> but I would like certain files to start up with links displayed.
> If not already possible, it would be nice to either set a file local
> variable or have, say:
> #+startup: displaylinks

I went with

#+startup: showlinks
#+startup: compresslinks

See the attached patch.
Please test.

>From f180be291a81062a5c6344876c172282969d4c66 Mon Sep 17 00:00:00 2001
From: Ihor Radchenko <yantar92@posteo.net>
Date: Fri, 22 Dec 2023 13:04:04 +0100
Subject: [PATCH] Allow per-buffer setting of org-link-descriptive via
 #+STARTUP options

* lisp/org.el (org-startup-options): Add new startup options to set
(org-mode): Move #+startup keyword parsing before setting up link
* doc/org-manual.org (Link Format):
(Summary of In-Buffer Settings): Document the new startup option.
* etc/ORG-NEWS (~org-link-descriptive~ can now be set per-buffer via
=#+STARTUP= options): Announce the new feature.

Link: https://orgmode.org/list/87bkst1nfl.fsf@ucl.ac.uk
 doc/org-manual.org | 14 +++++++++++++-
 etc/ORG-NEWS       |  8 ++++++++
 lisp/org.el        | 24 +++++++++++++-----------
 3 files changed, 34 insertions(+), 12 deletions(-)

diff --git a/doc/org-manual.org b/doc/org-manual.org
index cfa59ec37..da9d8c837 100644
--- a/doc/org-manual.org
+++ b/doc/org-manual.org
@@ -3172,7 +3172,8 @@ ** Link Format
 incomplete and the internals are again displayed as plain text.
 Inserting the missing bracket hides the link internals again.  To show
 the internal structure of all links, use the menu: Org \rarr
-Hyperlinks \rarr Literal links.
+Hyperlinks \rarr Literal links, customize ~org-link-descriptive~, or use
+=showlinks= [[*Summary of In-Buffer Settings][startup option]].
 ** Internal Links
@@ -20229,6 +20230,17 @@ ** Summary of In-Buffer Settings
   | =inlineimages=   | Show inline images.                   |
   | =noinlineimages= | Do not show inline images on startup. |
+  #+vindex: org-link-descriptive
+  Bracket links in Org buffers are displayed hiding the link path and
+  brackets.  For example, =[[https://orgmode.org][Org Website]]= is,
+  by default, displayed as "Org Website", hiding the link itself and
+  just displaying its description.  Alternatively, the links can be
+  displayed in full.  The corresponding variable is
+  ~org-link-descriptive~.
+  | =compresslinks= | Hide path and brackets in links. |
+  | =showlinks=     | Do not hide anything.            |
   #+vindex: org-log-done
   #+vindex: org-log-note-clock-out
   #+vindex: org-log-repeat
diff --git a/etc/ORG-NEWS b/etc/ORG-NEWS
index 6c81221c1..9b3f83705 100644
--- a/etc/ORG-NEWS
+++ b/etc/ORG-NEWS
@@ -362,6 +362,14 @@ The change is breaking when ~org-use-property-inheritance~ 
is set to ~t~.
 The =TEST= parameter is better served by Emacs debugging tools.
 ** New and changed options
+*** ~org-link-descriptive~ can now be set per-buffer via =#+STARTUP= options
+In addition to ~org-link-descriptive~ custom option, link display can
+now be controlled per-buffer as:
+: #+STARTUP: showlinks
+: #+STARTUP: compresslinks
 *** New variable ~org-clock-out-removed-last-clock~
 The variable is intended to be used by ~org-clock-out-hook~.  It is a
diff --git a/lisp/org.el b/lisp/org.el
index 6e6e075b4..7f7bc3000 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -4061,6 +4061,8 @@ (defconst org-startup-options
     ("align" org-startup-align-all-tables t)
     ("noalign" org-startup-align-all-tables nil)
     ("shrink" org-startup-shrink-all-tables t)
+    ("compresslinks" org-link-descriptive t)
+    ("showlinks" org-link-descriptive nil)
     ("inlineimages" org-startup-with-inline-images t)
     ("noinlineimages" org-startup-with-inline-images nil)
     ("latexpreview" org-startup-with-latex-preview t)
@@ -4847,6 +4849,17 @@ (define-derived-mode org-mode outline-mode "Org"
   (when org-agenda-file-menu-enabled
+  (setq-local outline-regexp org-outline-regexp)
+  (setq-local outline-level 'org-outline-level)
+  ;; Initialize cache.
+  (org-element-cache-reset)
+  (when (and org-element-cache-persistent
+             org-element-use-cache)
+    (org-persist-load
+     `((elisp org-element--cache) (version ,org-element-cache-version))
+     (current-buffer)
+     'match-hash :read-related t))
+  (org-set-regexps-and-options)
   (when (and org-link-descriptive
              (eq org-fold-core-style 'overlays))
     (add-to-invisibility-spec '(org-link)))
@@ -4857,8 +4870,6 @@ (define-derived-mode org-mode outline-mode "Org"
   (if org-link-descriptive
       (org-fold-core-set-folding-spec-property (car 
org-link--link-folding-spec) :visible nil)
     (org-fold-core-set-folding-spec-property (car org-link--link-folding-spec) 
:visible t))
-  (setq-local outline-regexp org-outline-regexp)
-  (setq-local outline-level 'org-outline-level)
   (when (and (stringp org-ellipsis) (not (equal "" org-ellipsis)))
     (unless org-display-table
       (setq org-display-table (make-display-table)))
@@ -4867,15 +4878,6 @@ (define-derived-mode org-mode outline-mode "Org"
      (vconcat (mapcar (lambda (c) (make-glyph-code c 'org-ellipsis))
     (setq buffer-display-table org-display-table))
-  ;; Initialize cache.
-  (org-element-cache-reset)
-  (when (and org-element-cache-persistent
-             org-element-use-cache)
-    (org-persist-load
-     `((elisp org-element--cache) (version ,org-element-cache-version))
-     (current-buffer)
-     'match-hash :read-related t))
-  (org-set-regexps-and-options)
   (when (and org-tag-faces (not org-tags-special-faces-re))
     ;; tag faces set outside customize.... force initialization.

Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>

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