From 24349c52b4fc930d183cf4ec4d7f4b6275e7cb0d Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@gmx.de>
Date: Sun, 4 Aug 2013 06:45:58 +0200
Subject: [PATCH] rio: add ^B control sequence to move cursor to output point

---
 sys/include/keyboard.h | 2 ++
 sys/man/1/rio          | 3 ++-
 sys/src/cmd/rio/wind.c | 4 ++++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/sys/include/keyboard.h b/sys/include/keyboard.h
index c3aff395d..a9539a1a3 100644
--- a/sys/include/keyboard.h
+++ b/sys/include/keyboard.h
@@ -45,6 +45,8 @@ enum {
 	Kscrollonedown=	KF|0x21,
 
 	Ksoh=	0x01,
+	Kstx=	0x02,
+	Ketx=	0x03,
 	Keof=	0x04,
 	Kenq=	0x05,
 	Kack=	0x06,
diff --git a/sys/man/1/rio b/sys/man/1/rio
index bf225bf13..4426d15ef 100644
--- a/sys/man/1/rio
+++ b/sys/man/1/rio
@@ -391,7 +391,8 @@ for the preceding string (see
 .PP
 Typing a left or right arrow moves the cursor one character in that direction.
 Typing an SOH character (control-A) moves the cursor to the beginning of the
-current line; an ENQ character (control-E) moves to the end.
+current line; an ENQ character (control-E) moves to the end. The STX character
+(control-B) moves the cursor to the output point.
 .PP
 Text may be moved vertically within the window.
 A scroll bar on the left of the window shows in its clear portion what fragment of the
diff --git a/sys/src/cmd/rio/wind.c b/sys/src/cmd/rio/wind.c
index d8c47d4cb..fc9a1176d 100644
--- a/sys/src/cmd/rio/wind.c
+++ b/sys/src/cmd/rio/wind.c
@@ -691,6 +691,10 @@ wkeyctl(Window *w, Rune r)
 			wsetselect(w, q0, q0);
 			wshow(w, w->q0);
 			return;
+		case Kstx:	/* ^B: output point */
+			wsetselect(w, w->qh, w->qh);
+			wshow(w, w->q0);
+			return;
 		}
 	if(w->rawing && (w->q0==w->nr || w->mouseopen)){
 		waddraw(w, &r, 1);