From 2fef7f647d2b544eb97059eb4a1f56a5e2bb95b3 Mon Sep 17 00:00:00 2001
From: Benno Schulenberg <bensberg@telfort.nl>
Date: Sun, 15 Jul 2018 09:18:39 +0200
Subject: [PATCH] input: stop a modified Delete key from entering stuff into
 the buffer

When using option -K on an xterm-like terminal, pressing <Shift+Del>,
<Alt+Del>, or <Ctrl+Del> would enter "2~", "3~", or "5~", respectively,
into the buffer.  Now it will just report an "Unknown sequence".
---
 src/winio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/winio.c b/src/winio.c
index d6d1df81..720f335c 100644
--- a/src/winio.c
+++ b/src/winio.c
@@ -1085,6 +1085,8 @@ int convert_sequence(const int *seq, size_t length, int *consumed)
 							   * Linux console/xterm/Terminal. */
 						if (length > 2 && seq[2] == '~')
 							return KEY_DC;
+						if (length > 4 && seq[4] == '~')
+							*consumed = 5;
 						break;
 					case '4': /* Esc [ 4 ~ == End on VT220/VT320/
 							   * Linux console/xterm. */