vt: fix home/end sequences in xterm mode

According to the ncurses terminfo database, we have

$ for k in khome kend; do printf '%s:\t' "$k"; TERM=xterm tput $k | od -An -tc; done
khome:	033   O   H
kend:	033   O   F
$

This differs from vt220fk, so add a new xtermfk table with the proper
sequences.

1 files changed, 29 insertions, 0 deletions

diff --git a/sys/src/cmd/vt/vt.c b/sys/src/cmd/vt/vt.c
index d7e69465c..cf8369ec7 100644
--- a/sys/src/cmd/vt/vt.c
+++ b/sys/src/cmd/vt/vt.c
@@ -91,6 +91,35 @@ struct funckey vt220fk[] = {
 	{ 0 },
 };
 
+struct funckey xtermfk[] = {
+	{ "insert",		"\033[2~", },
+	{ "delete",		"\033[3~", },
+	{ "home",		"\033OH", },
+	{ "end",		"\033OF", },
+	{ "page up",		"\033[5~", },
+	{ "page down",		"\033[6~", },
+
+	{ "up key",		"\033[A", },
+	{ "down key",		"\033[B", },
+	{ "left key",		"\033[D", },
+	{ "right key",		"\033[C", },
+
+	{ "F1",			"\033OP", },
+	{ "F2",			"\033OQ", },
+	{ "F3",			"\033OR", },
+	{ "F4",			"\033OS", },
+	{ "F5",			"\033[15~", },
+	{ "F6",			"\033[17~", },
+	{ "F7",			"\033[18~", },
+	{ "F8",			"\033[19~", },
+	{ "F9",			"\033[20~", },
+	{ "F10",		"\033[21~", },
+	{ "F11",		"\033[23~", },
+	{ "F12",		"\033[24~", },
+
+	{ 0 },
+};
+
 char gmap[256] = {
 	['_']	' ',	/* blank */
 	['\\']	'*',	/* diamond */