From d377a68593d354da327db9b15059f94f2306a7e4 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicm@openbsd.org>
Date: Tue, 27 Dec 2011 14:06:19 +0000
Subject: [PATCH] Add \033[s and \033[u to save and restore cursor position.

---
 input.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/input.c b/input.c
index a914aa5a..ed1f8760 100644
--- a/input.c
+++ b/input.c
@@ -135,8 +135,10 @@ enum input_csi_type {
 	INPUT_CSI_HPA,
 	INPUT_CSI_ICH,
 	INPUT_CSI_IL,
+	INPUT_CSI_RCP,
 	INPUT_CSI_RM,
 	INPUT_CSI_RM_PRIVATE,
+	INPUT_CSI_SCP,
 	INPUT_CSI_SGR,
 	INPUT_CSI_SM,
 	INPUT_CSI_SM_PRIVATE,
@@ -171,6 +173,8 @@ const struct input_table_entry input_csi_table[] = {
 	{ 'n', "",  INPUT_CSI_DSR },
 	{ 'q', " ", INPUT_CSI_DECSCUSR },
 	{ 'r', "",  INPUT_CSI_DECSTBM },
+	{ 's', "",  INPUT_CSI_SCP },
+	{ 'u', "",  INPUT_CSI_RCP },
 };
 
 /* Input transition. */
@@ -1168,6 +1172,10 @@ input_csi_dispatch(struct input_ctx *ictx)
 	case INPUT_CSI_IL:
 		screen_write_insertline(sctx, input_get(ictx, 0, 1, 1));
 		break;
+	case INPUT_CSI_RCP:
+		memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell);
+		screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy);
+		break;
 	case INPUT_CSI_RM:
 		switch (input_get(ictx, 0, 0, -1)) {
 		case 4:		/* IRM */
@@ -1207,6 +1215,11 @@ input_csi_dispatch(struct input_ctx *ictx)
 			break;
 		}
 		break;
+	case INPUT_CSI_SCP:
+		memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
+		ictx->old_cx = s->cx;
+		ictx->old_cy = s->cy;
+		break;
 	case INPUT_CSI_SGR:
 		input_csi_dispatch_sgr(ictx);
 		break;