add some comments

Author: c4pt0r

cli/main.go

@@ -128,6 +128,7 @@ func main() {
 	// register shell commands
 	for _, cmd := range RegisteredCmds {
 		handler := cmd.Handler()
+		completer := cmd.Completer()
 		longhelp := cmd.LongHelp()
 		shell.AddCmd(&ishell.Cmd{
 			Name:     cmd.Name(),

cmd.go

@@ -14,7 +14,9 @@ type Cmd interface {
 	Name() string
 	// Alias is the alias of the command
 	Alias() []string
-	// Handler is the handler of the command. A *ishell.Context object named
+	// Handler is the handler of the command
 	// `ishell` is stored in ctx
 	Handler() func(ctx context.Context)
+	// Completer
+	// Completer() func(ctx context.Context, args []string) []string
 }

cmd_flags.go

@@ -1,23 +1,58 @@
 package tcli
 
+///////////////////// scan options //////////////////////
 var (
 	ScanOptKeyOnly      string = "key-only"
 	ScanOptCountOnly    string = "count-only"
 	ScanOptLimit        string = "limit"
 	ScanOptStrictPrefix string = "strict-prefix"
 )
 
+// for completer to work, keyword list
+var ScanOptsKeywordList = []string{
+	ScanOptKeyOnly,
+	ScanOptCountOnly,
+	ScanOptLimit,
+	ScanOptStrictPrefix,
+}
+
+///////////////////// end of scan options ///////////////
+
+//////////////// del/delp/delall options ////////////////
 var (
 	DeleteOptWithPrefix string = "prefix-mode"
 	DeleteOptBatchSize  string = "batch-size"
 	DeleteOptLimit      string = "limit"
 	DeleteOptYes        string = "yes"
 )
 
+var DeleteOptsKeywordList = []string{
+	DeleteOptWithPrefix,
+	DeleteOptBatchSize,
+	DeleteOptLimit,
+	DeleteOptYes,
+}
+
+//////////////// end of del/delp/delall options ////////
+
+///////////////// loadcsv options //////////////////////
 var (
 	LoadFileOptBatchSize string = "batch-size"
 )
 
+var LoadFileOptsKeywordList = []string{
+	LoadFileOptBatchSize,
+}
+
+//////////////// end of loadcsv options ///////////////
+
+///////////////// backup options /////////////////////
 var (
 	BackupOptBatchSize string = "batch-size"
 )
+
+var BackupOptsKeywordList = []string{
+	BackupOptBatchSize,
+}
+
+//////////////// end of backup options ///////////////