commit 417e88bb75ee8af1bf696760bba9f114a007f733
author Bram Moolenaar <Bram@vim.org> Sat Dec 17 15:03:02 2022 +0000
committer Bram Moolenaar <Bram@vim.org> Sat Dec 17 15:03:02 2022 +0000
tree ff204c8776693594f47e6402cedc47d9714a4136
parent 8d754fada81df8d65ca6b9ebab72db71bfe5fd94

patch 9.0.1069: diff mode highlight fails for special characters

Problem:    Diff mode highlight fails for special characters.
Solution:   Adjust condition for setting "diff_hlf".

src/drawline.c

diff --git a/src/drawline.c b/src/drawline.c
index 79b187f..1d26270 100644
--- a/src/drawline.c
+++ b/src/drawline.c
@@ -2211,8 +2211,9 @@
 		if (wlv.diff_hlf == HLF_CHD && ptr - line >= change_start
 							   && wlv.n_extra == 0)
 		    wlv.diff_hlf = HLF_TXD;		// changed text
-		if (wlv.diff_hlf == HLF_TXD && (ptr - line > change_end
-							   || wlv.n_extra > 0))
+		if (wlv.diff_hlf == HLF_TXD
+			&& ((ptr - line > change_end && wlv.n_extra == 0)
+			       || (wlv.n_extra > 0 && wlv.extra_for_textprop)))
 		    wlv.diff_hlf = HLF_CHD;		// changed line
 		wlv.line_attr = HL_ATTR(wlv.diff_hlf);
 		if (wp->w_p_cul && lnum == wp->w_cursor.lnum