Added the write method to the Instance object so that it can be passed around as a io.Writer object.

example/main.go

@@ -1,12 +1,13 @@
 package main
 
 import (
+	"fmt"
 	"io"
 	"log"
 	"strconv"
 	"time"
 
-	"github.com/chzyer/readline"
+	"github.com/traetox/readline"
 )
 
 func usage(w io.Writer) {
@@ -43,6 +44,8 @@ func main() {
 			}()
 		case "bye":
 			goto exit
+		case "write":
+			fmt.Fprintf(l, "look, i am writer too\n")
 		case "":
 		default:
 			log.Println("you said:", strconv.Quote(line))

readline.go

@@ -44,3 +44,7 @@ func (i *Instance) Close() error {
 	i.o.Close()
 	return i.t.Close()
 }
+
+func (i *Instance) Write(b []byte) (int, error) {
+	return i.o.Stderr().Write(b)
+}