Updated examples

Author: abiosoft

README.md

@@ -15,7 +15,16 @@ func main(){
 	// display welcome info.
 	shell.Println("Sample Interactive Shell")
 
-	// register a function for "exit" command.
+	// register a function for "greet" command.
+    shell.Register("greet", func(cmd string, args []string) (string, error) {
+        name := "Stranger"
+        if len(args) > 0 {
+            name = strings.Join(args, " ")
+        }
+		return "Hello "+name, nil
+	})
+
+    // register a function for "exit" command.
 	shell.Register("exit", func(cmd string, args []string) (string, error) {
 		shell.Stop()
 		return "bye!", nil
@@ -28,11 +37,13 @@ func main(){
 Execution
 ```
 Sample Interactive Shell
+>> greet Someone Somewhere
+Hello Someone Somewhere
 >> exit
 bye!
 ```
 
-#### Let's do more.
+#### Reading input.
 ```go
 // simulate an authentication
 shell.Register("login", func(cmd string, args []string) (string, error) {
@@ -66,6 +77,8 @@ ishell is in active development and can still change significantly.
 * Support multiline inputs.
 * Handle ^C interrupts.
 * Support coloured outputs.
+* Command history.
+* Tab completion.
 * Testing, testing, testing.
 
 ### Contribution

example/main.go

@@ -17,18 +17,27 @@ func main() {
 		shell.Println("Do you want to do more ? y/n:")
 		line, _ := shell.ReadLine()
 		if strings.ToLower(line) == "y" {
-			doMore(shell)
+			doLogin(shell)
 		}
 		shell.Stop()
 		return "bye!", nil
 	})
 
+	// register a function for "greet" command.
+	shell.Register("greet", func(cmd string, args []string) (string, error) {
+		name := "Stranger"
+		if len(args) > 0 {
+			name = strings.Join(args, " ")
+		}
+		return "Hello " + name, nil
+	})
+
 	// start shell
 	shell.Start()
 }
 
-func doMore(shell *ishell.Shell) {
-	shell.Stop()
+func doLogin(shell *ishell.Shell) {
+	shell.Println("Let's simulate login")
 
 	// prompt for input
 	shell.Println("Username:")

ishell.go

@@ -216,7 +216,7 @@ func (s *Shell) Print(val ...interface{}) {
 	fmt.Fprint(s.writer, val...)
 }
 
-// Register registers a function for a command.
+// Register registers a function for command.
 func (s *Shell) Register(command string, function CmdFunc) {
 	s.functions[command] = function
 }