From 0652cf16507a17fa7058423ec5a7a23b0fa3cc68 Mon Sep 17 00:00:00 2001
From: JSDurand <mmemmew@gmail.com>
Date: Tue, 27 Jul 2021 10:55:55 +0800
Subject: fix: a bug in pdf-view-position-to-register

* pdf.el (pdf-view-use-dedicated-register): Integrate with the global
registers.

(pdf-view-position-to-register):
(durand-pdf-view-position-to-register): Fix a bug that cannot add new
registers caused by an improper use of a macro.
---
 pdf.el | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/pdf.el b/pdf.el
index f595e7b..25f8f66 100644
--- a/pdf.el
+++ b/pdf.el
@@ -1,5 +1,36 @@
 (use-package "pdf-tools/lisp" 'pdf-view)
 
+;; I want to integrate with the global register list.
+(setq pdf-view-use-dedicated-register nil)
+
+;; NOTE: Fix a bug
+
+;;;###autoload
+(defun durand-pdf-view-position-to-register (register)
+  "Store current PDF position in register REGISTER.
+
+See also `point-to-register'.
+
+Modifed by Durand 2021-07-27 10:42:02.828266."
+  (interactive
+   (list (pdf-view-with-register-alist
+           (register-read-with-preview "Position to register: "))))
+  (let ((p (assq register (cond (pdf-view-use-dedicated-register
+                                 pdf-view-register-alist)
+                                (register-alist)))))
+    (cond
+     (p (setcdr p (pdf-view-registerv-make)))
+     (pdf-view-use-dedicated-register
+      (setq pdf-view-register-alist
+            (cons (cons register (pdf-view-registerv-make))
+                  pdf-view-register-alist)))
+     ((setq register-alist
+            (cons (cons register (pdf-view-registerv-make))
+                  register-alist))))))
+
+(advice-add 'pdf-view-position-to-register :override
+            'durand-pdf-view-position-to-register)
+
 ;;;###autoload
 (defun pdf-view-down-half-page-or-previous-page ()
   "Scroll down half page or go to the previous page."
-- 
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