From a7f022f97f3ce4174bb59eba0a51aaaf502fdc2b Mon Sep 17 00:00:00 2001
From: Craig Barnes <craigbarnes@protonmail.com>
Date: Mon, 21 Mar 2022 16:20:28 +0000
Subject: [PATCH] osc: add support for OSC l function, for setting the window
 title

This originated in SunOS and is also supported by xterm as an
alternative to the more commonly used OSC 2 control function.

See: https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h3-Miscellaneous
---
 osc.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/osc.c b/osc.c
index 5d04910b..c4d29a5c 100644
--- a/osc.c
+++ b/osc.c
@@ -530,6 +530,13 @@ osc_notify(struct terminal *term, char *string)
 void
 osc_dispatch(struct terminal *term)
 {
+    if (term->vt.osc.idx > 0 && term->vt.osc.data[0] == 'l') {
+        const char *str = (const char *)term->vt.osc.data;
+        LOG_DBG("OSC: %.*s (prefix = 'l')", (int)term->vt.osc.idx, str);
+        term_set_window_title(term, str + 1);
+        return;
+    }
+
     unsigned param = 0;
     int data_ofs = 0;