From ad8581ed73d09dac341be5fba7e826bc949f97dc Mon Sep 17 00:00:00 2001
From: JSDurand <mmemmew@gmail.com>
Date: Mon, 10 Jan 2022 23:51:08 +0800
Subject: view-conf: fix the function to convert youtube video to URL.

This change is necessary as yt-dlp uses a different format for the
output files than youtube-dl.
---
 view-conf.el | 37 ++++++++++++++++++++++---------------
 1 file changed, 22 insertions(+), 15 deletions(-)

diff --git a/view-conf.el b/view-conf.el
index 69f52a5..5e6b5aa 100644
--- a/view-conf.el
+++ b/view-conf.el
@@ -236,21 +236,28 @@ options to choose from."
 (defun durand-convert-youtube-video-to-url (video-name)
   "Convert VIDEO-NAME to its original url."
   (interactive (list (read-string "Video name: ")))
-  (cond
-   ((string-match "\\.[^.]+$" video-name)
-    ;; with extension
-    (kill-new
-     (concat
-      "https://www.youtube.com/watch?v="
-      (substring-no-properties
-       video-name
-       (- (match-beginning 0) 11)
-       (match-beginning 0)))))
-   (t
-    ;; no extension
-    (kill-new
-     (concat "https://www.youtube.com/watch?v="
-             (substring-no-properties video-name -11))))))
+  (save-match-data
+    (cond
+     ((string-match (rx "[" (group (1+ (not "]"))) "].")
+                    video-name)
+      (kill-new
+       (concat
+        "https://www.youtube.com/watch?v="
+        (match-string 1 video-name))))
+     ((string-match "\\.[^.]+$" video-name)
+      ;; with extension
+      (kill-new
+       (concat
+        "https://www.youtube.com/watch?v="
+        (substring-no-properties
+         video-name
+         (- (match-beginning 0) 11)
+         (match-beginning 0)))))
+     (t
+      ;; no extension
+      (kill-new
+       (concat "https://www.youtube.com/watch?v="
+               (substring-no-properties video-name -11)))))))
 
 ;;; moving by paragraphs
 
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