more improvements with autocomplete

bash2.go

@@ -143,7 +143,21 @@ func (args) doBashHelp() {
 */
 
 func (pb *Auto) Autocomplete(notsure any, sendthis string) {
-	fmt.Println(sendthis)
+	parts := strings.Split(sendthis, " ")
+	var all []string
+	for _, part := range parts {
+		var found bool
+		for _, s := range os.Args {
+			if s == part {
+				found = true
+			}
+		}
+		if found {
+			continue
+		}
+		all = append(all, part)
+	}
+	fmt.Printf("%s", strings.Join(all, " "))
 }
 
 func parseArgv(argname string) *Auto {
@@ -172,7 +186,6 @@ func parseArgv(argname string) *Auto {
 		newauto.Arg1 = os.Args[1]
 		newauto.Partial = os.Args[2]
 		newauto.Arg3 = os.Args[3]
-		newauto.Argv = os.Args[4:]
 		if len(os.Args) < 5 {
 			// the user is doing autocomplete on the command itself
 			newauto.Partial = ""
@@ -180,9 +193,11 @@ func parseArgv(argname string) *Auto {
 			newauto.Argv = []string{""}
 			return newauto
 		}
+		newauto.Argv = os.Args[4:]
 		if newauto.Partial == "''" {
 			newauto.Partial = ""
 			newauto.Cmd = "todo:findme"
+		}
 		// set pb.Cmd to the first thing that doesn't have a '-' arg
 		for _, s := range newauto.Argv {
 			if strings.HasPrefix(s, "-") {
@@ -191,6 +206,8 @@ func parseArgv(argname string) *Auto {
 			newauto.Cmd = s
 			break
 		}
+		if newauto.Cmd == "" {
+			newauto.Cmd = strings.Join(newauto.Argv, "BLAH")
 		}
 		return newauto
 	}