From e100d465daefd20da0bb5eea87c4b4896badff16 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Wed, 8 Feb 2017 17:31:09 +0000
Subject: Add support for scroll up escape sequence (CSI S) and use it when
 possible instead of sending individual line feeds.

---
 input.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'input.c')

diff --git a/input.c b/input.c
index d5b8737d..b96ac7ef 100644
--- a/input.c
+++ b/input.c
@@ -222,6 +222,7 @@ enum input_csi_type {
 	INPUT_CSI_SGR,
 	INPUT_CSI_SM,
 	INPUT_CSI_SM_PRIVATE,
+	INPUT_CSI_SU,
 	INPUT_CSI_TBC,
 	INPUT_CSI_VPA,
 	INPUT_CSI_WINOPS,
@@ -243,6 +244,7 @@ static const struct input_table_entry input_csi_table[] = {
 	{ 'L', "",  INPUT_CSI_IL },
 	{ 'M', "",  INPUT_CSI_DL },
 	{ 'P', "",  INPUT_CSI_DCH },
+	{ 'S', "",  INPUT_CSI_SU },
 	{ 'X', "",  INPUT_CSI_ECH },
 	{ 'Z', "",  INPUT_CSI_CBT },
 	{ 'c', "",  INPUT_CSI_DA },
@@ -1413,6 +1415,9 @@ input_csi_dispatch(struct input_ctx *ictx)
 	case INPUT_CSI_SM_PRIVATE:
 		input_csi_dispatch_sm_private(ictx);
 		break;
+	case INPUT_CSI_SU:
+		screen_write_scrollup(sctx, input_get(ictx, 0, 1, 1));
+		break;
 	case INPUT_CSI_TBC:
 		switch (input_get(ictx, 0, 0, 0)) {
 		case 0:
-- 
cgit