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vt: handle insert/delete/home/end keys for vt220/xterm

--- a/sys/src/cmd/vt/cons.h

+++ b/sys/src/cmd/vt/cons.h

@@ -40,7 +40,7 @@

 	char	*sequence;

 };

 extern struct funckey *fk, *appfk;

-extern struct funckey ansifk[], ansiappfk[], xtermfk[];

+extern struct funckey ansifk[], ansiappfk[], vt220fk[];

 extern int	x, y, xmax, ymax, olines;

 extern int	peekc, attribute;

--- a/sys/src/cmd/vt/main.c

+++ b/sys/src/cmd/vt/main.c

@@ -219,6 +219,7 @@

 	attr = defattr;

 	ARGBEGIN{

 	case '2':

+		fk = vt220fk;

 		term = "vt220";

 		break;

 	case 'a':

@@ -240,7 +241,7 @@

 			sysfatal("could not create log file: %s: %r", p);

 		break;

 	case 'x':

-		fk = xtermfk;

+		fk = vt220fk;

 		term = "xterm";

 		break;

 	case 'r':

@@ -531,14 +532,17 @@

 	return nil;

 }

-void

+int

 sendfk(char *name)

 {

 	char *s = lookfk(appfk != nil ? appfk : fk, name);

 	if(s == nil && appfk != nil)

 		s = lookfk(fk, name);

-	if(s != nil)

+	if(s != nil){

 		sendnchars(strlen(s), s);

+		return 1;

+	}

+	return 0;

 }

 int

@@ -570,6 +574,30 @@

 				resize_flag = 1;

 			if(cs->raw) {

 				switch(kbdchar){

+				case Kins:

+					if(!sendfk("insert"))

+						goto Send;

+					break;

+				case Kdel:

+					if(!sendfk("delete"))

+						goto Send;

+					break;

+				case Khome:

+					if(!sendfk("home"))

+						goto Send;

+					break;

+				case Kend:

+					if(!sendfk("end"))

+						goto Send;

+					break;

+

+				case Kpgup:

+					sendfk("page up");

+					break;

+				case Kpgdown:

+					sendfk("page down");

+					break;

+

 				case Kup:

 					sendfk("up key");

 					break;

@@ -582,12 +610,7 @@

 				case Kright:

 					sendfk("right key");

 					break;

-				case Kpgup:

-					sendfk("page up");

-					break;

-				case Kpgdown:

-					sendfk("page down");

-					break;

+

 				case KF|1:

 					sendfk("F1");

 					break;

@@ -624,6 +647,7 @@

 				case KF|12:

 					sendfk("F12");

 					break;

+

 				case '\n':

 					echobuf[0] = '\r';

 					sendnchars(1, echobuf);

@@ -633,6 +657,7 @@

 					sendnchars(1, echobuf);

 					break;

 				default:

+				Send:

 					sendnchars(runetochar(echobuf, &kbdchar), echobuf);

 					break;

 				}

--- a/sys/src/cmd/vt/vt.c

+++ b/sys/src/cmd/vt/vt.c

@@ -57,16 +57,23 @@

 	{ "down key",		"\033OB", },

 	{ "left key",		"\033OD", },

 	{ "right key",		"\033OC", },

+	

 	{ 0 },

 };

-struct funckey xtermfk[] = {

+struct funckey vt220fk[] = {

+	{ "insert",		"\033[2~", },

+	{ "delete",		"\033[3~", },

+	{ "home",		"\033[1~", },

+	{ "end",		"\033[4~", },

 	{ "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", },

@@ -79,6 +86,7 @@

 	{ "F10",		"\033[21~", },

 	{ "F11",		"\033[23~", },

 	{ "F12",		"\033[24~", },

+

 	{ 0 },

 };

-- 

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