fix: coding style and file format for chapter 11, 12, 13, 14 and 15.

2025-11-13 17:36:12 +08:00 · 2017-02-11 12:32:16 +08:00
parent c5413075c1
commit 4abbfabb52
63 changed files with 2662 additions and 2622 deletions
--- a/eBook/exercises/chapter_15/server1.go
+++ b/eBook/exercises/chapter_15/server1.go
@@ -1,75 +1,75 @@
-package main
-
-import (
-	"fmt"
-	"os"
-	"net"
-	"strings"
-)
-
-// Map of the clients: contains: clientname - 1 (active) / 0 - (inactive)
-var mapUsers map[string]int 
-
-func main() {
-	var listener net.Listener
-	var error error
-	var conn net.Conn
-	mapUsers = make(map[string]int) 
-
-	fmt.Println("Starting the server ...")
-
-	// create listener:
-	listener, error = net.Listen("tcp", "localhost:50000")
-	checkError(error)
-	// listen and accept connections from clients:
-	for {
-		conn, error = listener.Accept()
-		checkError(error)
-		go doServerStuff(conn)
-	}
-}
-
-func doServerStuff(conn net.Conn) {
-	var buf []byte
-	var error error
-
-	for {
-		buf = make([]byte, 512)
-		_, error = conn.Read(buf)
-		checkError(error)
-		input := string(buf)
-		if strings.Contains(input, ": SH") {
-			fmt.Println("Server shutting down.")
-			os.Exit(0)
-		}
-		// op commando WHO:  write out mapUsers
-		if strings.Contains(input, ": WHO") {
-			DisplayList()
-		}
-		// extract clientname: 
-		ix := strings.Index(input, "says")
-    	clName := input[0:ix-1]
-		//fmt.Printf("The clientname  is ---%s---\n", string(clName))
-		// set clientname active in mapUsers:
-		mapUsers[string(clName)] = 1
-		fmt.Printf("Received data: --%v--", string(buf))
-	}
-}
-
-// advantage: code is cleaner, 
-// disadvantage:  the server process has to stop at any error:
-//                a simple return continues in the function where we came from!
-func checkError(error error) {
-	if error != nil {
-		panic("Error: " + error.Error())  // terminate program
-	}
-}
-
-func DisplayList() {
-	fmt.Println("--------------------------------------------")
-	fmt.Println("This is the client list: 1=active, 0=inactive")
-	for key, value := range mapUsers {
-		fmt.Printf("User %s is %d\n", key, value)
-	}
-	fmt.Println("--------------------------------------------")
-}
+package main
+
+import (
+	"fmt"
+	"net"
+	"os"
+	"strings"
+)
+
+// Map of the clients: contains: clientname - 1 (active) / 0 - (inactive)
+var mapUsers map[string]int
+
+func main() {
+	var listener net.Listener
+	var error error
+	var conn net.Conn
+	mapUsers = make(map[string]int)
+
+	fmt.Println("Starting the server ...")
+
+	// create listener:
+	listener, error = net.Listen("tcp", "localhost:50000")
+	checkError(error)
+	// listen and accept connections from clients:
+	for {
+		conn, error = listener.Accept()
+		checkError(error)
+		go doServerStuff(conn)
+	}
+}
+
+func doServerStuff(conn net.Conn) {
+	var buf []byte
+	var error error
+
+	for {
+		buf = make([]byte, 512)
+		_, error = conn.Read(buf)
+		checkError(error)
+		input := string(buf)
+		if strings.Contains(input, ": SH") {
+			fmt.Println("Server shutting down.")
+			os.Exit(0)
+		}
+		// op commando WHO:  write out mapUsers
+		if strings.Contains(input, ": WHO") {
+			DisplayList()
+		}
+		// extract clientname:
+		ix := strings.Index(input, "says")
+		clName := input[0 : ix-1]
+		//fmt.Printf("The clientname  is ---%s---\n", string(clName))
+		// set clientname active in mapUsers:
+		mapUsers[string(clName)] = 1
+		fmt.Printf("Received data: --%v--", string(buf))
+	}
+}
+
+// advantage: code is cleaner,
+// disadvantage:  the server process has to stop at any error:
+//                a simple return continues in the function where we came from!
+func checkError(error error) {
+	if error != nil {
+		panic("Error: " + error.Error()) // terminate program
+	}
+}
+
+func DisplayList() {
+	fmt.Println("--------------------------------------------")
+	fmt.Println("This is the client list: 1=active, 0=inactive")
+	for key, value := range mapUsers {
+		fmt.Printf("User %s is %d\n", key, value)
+	}
+	fmt.Println("--------------------------------------------")
+}