commit c611941c606328740b6e9acc1191a5d97ace13e2
author rbtnn <naru123456789@gmail.com> Sat Aug 07 13:08:45 2021 +0200
committer Bram Moolenaar <Bram@vim.org> Sat Aug 07 13:08:45 2021 +0200
tree da4100cd18cc0f7ccf1ee44141edd32055a0d3f2
parent 3276f5846f7ad61f55175959ac21c1b4cf595352

patch 8.2.3304: popup window title with wide characters is truncated

Problem:    Popup window title with wide characters is truncated.
Solution:   Use vim_strsize() instead of MB_CHARLEN(). (Naruhiko Nishino,
            closes #8721)

src/popupwin.c

diff --git a/src/popupwin.c b/src/popupwin.c
index 470bd70..d86c6c0 100644
--- a/src/popupwin.c
+++ b/src/popupwin.c
@@ -3896,7 +3896,7 @@
 	title_wincol = wp->w_wincol + 1;
 	if (wp->w_popup_title != NULL)
 	{
-	    title_len = (int)MB_CHARLEN(wp->w_popup_title);
+	    title_len = vim_strsize(wp->w_popup_title);
 
 	    // truncate the title if too long
 	    if (title_len > total_width - 2)