Re: [BUG] org-capture-kill: doesn't remove the right text region

[Ihor Radchenko]

Caleb Chase <caleb@chasecaleb.com> writes:

> I discovered a bug with org-capture and org-capture kill when
> canceling an item or plain type template on a heading that has only an
> empty line for content. Minimal reproduction is as follows:

The fix is attached.
The reason why this bug is happening is `org-capture-empty-lines-before`
adding/removing the lines before the capture region. This situation was
not considered by org-capture.

Note that `org-capture-empty-lines-before` changes are not going to be
restored upon capture abortion. Fixing this will not be trivial (AFAIU,
suggestions are welcome) and the gains are marginal - I doubt that
anyone is going to care much about this side effect. Of course, feel
free to disagree by replying.

Best,
Ihor

>From 66c3f8c6f54ec4a4aa4a3ca567e9c2ff5370246e Mon Sep 17 00:00:00 2001
Message-Id: 
<66c3f8c6f54ec4a4aa4a3ca567e9c2ff5370246e.1658643473.git.yantar92@gmail.com>
From: Ihor Radchenko <yantar92@gmail.com>
Date: Sun, 24 Jul 2022 14:14:58 +0800
Subject: [PATCH] org-capture-kill: Fix capture boundaries when deleting empty
 lines above

* lisp/org-capture.el (org-capture-place-entry):
(org-capture-place-item):
(org-capture-place-table-line):
(org-capture-place-plain-text): Store beginning of the capture region
as marker.  This will make the ORIGIN move if
`org-capture-empty-lines-before` has to add/remove lines.

Fixes 
CAGyCDkPos+W_MEJffSZga83NsOLZx2XGTYEmSGQuHQvS-sNa8A@mail.gmail.com">https://orgmode.org/list/CAGyCDkPos+W_MEJffSZga83NsOLZx2XGTYEmSGQuHQvS-sNa8A@mail.gmail.com
---
 lisp/org-capture.el | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lisp/org-capture.el b/lisp/org-capture.el
index 8748b7f84..6ca66835a 100644
--- a/lisp/org-capture.el
+++ b/lisp/org-capture.el
@@ -1178,7 +1178,7 @@ (defun org-capture-place-entry ()
         ;; Make sure that last point is not folded.
         (org-fold-core-cycle-over-indirect-buffers
           (org-fold-region (max 1 (1- (point-max))) (point-max) nil))))
-    (let ((origin (point)))
+    (let ((origin (point-marker)))
       (unless (bolp) (insert "\n"))
       (org-capture-empty-lines-before)
       (let ((beg (point)))
@@ -1243,7 +1243,7 @@ (defun org-capture-place-item ()
                                     (point))
                                   beg)))))))
     ;; Insert template.
-    (let ((origin (point)))
+    (let ((origin (point-marker)))
       (unless (bolp) (insert "\n"))
       ;; When a new list is created, always obey to `:empty-lines' and
       ;; friends.
@@ -1344,7 +1344,7 @@ (defun org-capture-place-table-line ()
       ;; No table found.  Create it with an empty header.
       (goto-char end)
       (unless (bolp) (insert "\n"))
-      (let ((origin (point)))
+      (let ((origin (point-marker)))
        (insert "|   |\n|---|\n")
        (narrow-to-region origin (point))))
     ;; In the current table, find the appropriate location for TEXT.
@@ -1373,7 +1373,7 @@ (defun org-capture-place-table-line ()
      (t
       (goto-char (org-table-end))))
     ;; Insert text and position point according to template.
-    (let ((origin (point)))
+    (let ((origin (point-marker)))
       (unless (bolp) (insert "\n"))
       (let ((beg (point))
            (end (save-excursion
@@ -1405,7 +1405,7 @@ (defun org-capture-place-plain-text ()
    (t
     ;; Beginning or end of file.
     (goto-char (if (org-capture-get :prepend) (point-min) (point-max)))))
-  (let ((origin (point)))
+  (let ((origin (point-marker)))
     (unless (bolp) (insert "\n"))
     (org-capture-empty-lines-before)
     (org-capture-position-for-last-stored (point))
-- 
2.35.1