Support xterm(1) cursor colour change sequences through terminfo(5) Cc

(set) and Cr (reset) extensions. Originally by Sean Estabrooks, tweaked
by me and Ailin Nemui.

1 files changed, 29 insertions, 7 deletions

diff --git a/input.c b/input.c
index 3da950d5..86d34b74 100644
--- a/input.c
+++ b/input.c
@@ -1445,17 +1445,39 @@ input_enter_osc(struct input_ctx *ictx)
 void
 input_exit_osc(struct input_ctx *ictx)
 {
-	if (ictx->flags & INPUT_DISCARD)
-		return;
-	log_debug("%s: \"%s\"", __func__, ictx->input_buf);
+	u_char *p = ictx->input_buf;
+	int	option;
 
-	if (ictx->input_len < 2 || ictx->input_buf[1] != ';')
+	if (ictx->flags & INPUT_DISCARD)
 		return;
-	if (ictx->input_buf[0] != '0' && ictx->input_buf[0] != '2')
+	if (ictx->input_len < 1 || *p < '0' || *p > '9')
 		return;
 
-	screen_set_title(ictx->ctx.s, ictx->input_buf + 2);
-	server_status_window(ictx->wp->window);
+	log_debug("%s: \"%s\"", __func__, p);
+
+	option = 0;
+	while (*p >= '0' && *p <= '9')
+		option = option * 10 + *p++ - '0';
+	if (*p == ';')
+		p++;
+
+	switch (option) {
+	case 0:
+	case 2:
+		screen_set_title(ictx->ctx.s, p);
+		server_status_window(ictx->wp->window);
+		break;
+	case 12:
+		screen_set_cursor_colour(ictx->ctx.s, p);
+		break;
+	case 112:
+		if (*p == '\0') /* No arguments allowed. */
+			screen_set_cursor_colour(ictx->ctx.s, "");
+		break;
+	default:
+		log_debug("%s: unknown '%u'", __func__, option);
+		break;
+	}
 }
 
 /* APC string started. */