update tutorial for new export scheme

R=ken,rsc
DELTA=101  (9 added, 0 deleted, 92 changed)
OCL=23174
CL=23188

doc/progs/cat_rot13.go

@@ -46,7 +46,7 @@ func (r13 *rotate13) Read(b []byte) (ret int, err *os.Error) {
 func (r13 *rotate13) String() string {
 	return r13.source.String()
 }
-// end of Rotate13 implementation
+// end of rotate13 implementation
 
 func cat(r reader) {
 	const NBUF = 512;

doc/progs/server.go

@@ -4,35 +4,35 @@
 
 package main
 
-type Request struct {
+type request struct {
 	a, b    int;
 	replyc  chan int;
 }
 
-type BinOp (a, b int) int;
+type binOp (a, b int) int;
 
-func Run(op *BinOp, request *Request) {
+func run(op *BinOp, request *Request) {
 	result := op(request.a, request.b);
 	request.replyc <- result;
 }
 
-func Server(op *BinOp, service chan *Request) {
+func server(op *BinOp, service chan *Request) {
 	for {
 		request := <-service;
-		go Run(op, request);  // don't wait for it
+		go run(op, request);  // don't wait for it
 	}
 }
 
-func StartServer(op *BinOp) chan *Request {
+func startServer(op *BinOp) chan *Request {
 	req := make(chan *Request);
 	go Server(op, req);
 	return req;
 }
 
 func main() {
-	adder := StartServer(func(a, b int) int { return a + b });
+	adder := startServer(func(a, b int) int { return a + b });
 	const N = 100;
-	var reqs [N]Request;
+	var reqs [N]request;
 	for i := 0; i < N; i++ {
 		req := &reqs[i];
 		req.a = i;

doc/progs/sieve.go

@@ -22,10 +22,10 @@ func filter(in, out chan int, prime int) {
 	}
 }
 
-// The prime sieve: Daisy-chain Filter processes together.
+// The prime sieve: Daisy-chain filter processes together.
 func main() {
 	ch := make(chan int);  // Create a new channel.
-	go generate(ch);  // Start Generate() as a goroutine.
+	go generate(ch);  // Start generate() as a goroutine.
 	for {
 		prime := <-ch;
 		print(prime, "\n");