gc fix error handling

main.go

@@ -13,15 +13,18 @@ func main() {
 	pflag.IntVarP(&height, "height", "H", 10, "set how many elements are displayed at once")
 	pflag.Parse()
 
-	message := "basil: can't start interface\n%s\n"
-
 	// start the ui, trapping errors
 
 	if u, e := ui.NewUi(height); e == nil {
 		if err := u.Start(); err != nil {
-			fmt.Fprintf(os.Stderr, message, e)
+			printErr(e)
 		}
 	} else {
-		fmt.Fprintf(os.Stderr, message, e)
+		printErr(e)
 	}
 }
+
+func printErr(e error) {
+	fmt.Fprintf(os.Stderr, "basil: can't start interface\n%s\n", e)
+	os.Exit(1)
+}

ui/ui.go

@@ -67,7 +67,7 @@ func (u ui) drawAngleMode() {
 
 func (u *ui) matchKeys(input *tcell.EventKey) {
 	switch input.Key() {
-		case tcell.KeyCtrlLeftSq:              u.running = false
+		case tcell.KeyESC:                     u.running = false
 		case tcell.KeyEnter:                   u.parseLine()
 		case tcell.KeyDEL, tcell.KeyBackspace: u.buff.delete(u.scr)
 		case tcell.KeyRune:                    u.buff.push(u.scr, input.Rune())