Working some things out

example/ui.go

@@ -23,6 +23,7 @@ package main
 
 import (
 	"fmt"
+	"math/rand"
 	"os"
 
 	"github.com/gdamore/tcell"
@@ -116,3 +117,13 @@ func (ui *Ui) SetScreen(scr *UiScreen) {
 
 func (ui *Ui) stop()    { ui.running = false }
 func (ui *Ui) cleanup() { ui.tScreen.Fini() }
+
+const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+func RandomString(n int) string {
+	b := make([]byte, n)
+	for i := range b {
+		b[i] = letters[rand.Intn(len(letters))]
+	}
+	return string(b)
+}