(cleanup)

args.go

@@ -7,11 +7,12 @@ import (
 	"os"
 )
 
-var tcpAddr = flag.String("tcp", "", "foo")
+var (
+	tcpAddr = flag.String("tcp", "", "tcp ip:port to listen on")
+)
 
 func runfile() {
 	filename := flag.Args()[0]
-	fmt.Println(filename)
 	f, err := os.Open(filename)
 	if err != nil {
 		fmt.Fprintln(os.Stderr, "unable to read file ", filename)

eval.go

@@ -73,10 +73,16 @@ func (i interpreter) send() {
 	for {
 		select {
 		case v := <-i.values:
+			if i.out1 == nil {
+				return
+			}
 			if _, err := fmt.Fprintln(i.out1, v); err != nil {
 				fmt.Println("can't write out to client: ", err)
 			}
 		case e := <-i.errors:
+			if i.out2 == nil {
+				return
+			}
 			if _, err := fmt.Fprintln(i.out2, e); err != nil {
 				fmt.Println("can't write error to client: ", err)
 			}

skeam.go

@@ -204,7 +204,6 @@ func main() {
 	}
 	if *tcpAddr != "" {
 		runTCPServer()
-		return
 	}
 	if len(flag.Args()) > 0 {
 		runfile()

tcp_connections.go

@@ -24,11 +24,11 @@ func runTCPServer() {
 			printErrorMsg(err.Error())
 			continue
 		}
-		go startConnection(conn, manager)
+		go startTCPConnection(conn, manager)
 	}
 }
 
-func startConnection(conn net.Conn, m *cm.Manager) {
+func startTCPConnection(conn net.Conn, m *cm.Manager) {
 	m.Add(conn)
 	defer m.Remove(conn)