From 47c0d2038807757207cde3b3e00fbc1ca9448178 Mon Sep 17 00:00:00 2001
From: Maxime Coste <mawww@kakoune.org>
Date: Sun, 2 May 2021 17:05:30 +1000
Subject: [PATCH] Request xterm 'modifyOtherKeys' mode to opt-in CSI u key
 reporting

Various terminal emulators now support this `CSI > 4 ; 1 m` sequence
to enable CSI u style reporting, opt into it on startup.

Closes #4103
---
 src/ncurses_ui.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/ncurses_ui.cc b/src/ncurses_ui.cc
index fce51cb7..18be7bd2 100644
--- a/src/ncurses_ui.cc
+++ b/src/ncurses_ui.cc
@@ -412,6 +412,8 @@ void NCursesUI::set_terminal_mode() const
     fputs("\033=", stdout);
     // force enable report focus events
     fputs("\033[?1004h", stdout);
+    // request CSI u style key reporting
+    fputs("\033[>4;1m", stdout);
     fflush(stdout);
 }
 
@@ -420,6 +422,7 @@ void NCursesUI::restore_terminal_mode() const
     tcsetattr(STDIN_FILENO, TCSAFLUSH, &m_original_termios);
     fputs("\033>", stdout);
     fputs("\033[?1004l", stdout);
+    fputs("\033[>4;0m", stdout);
     fflush(stdout);
 }