flags : Help outputs a positional spec as well

flags/flags.go

@@ -43,20 +43,26 @@ func Help(subcmd string, opts any) {
 	v := reflect.ValueOf(opts)
 	t := v.Type()
 
-	fmt.Printf("um %s usage:\n", subcmd)
 	w := tabwriter.NewWriter(os.Stdout, 0, 0, 3, ' ', 0)
+	positional := ""
 
 	for i := 0; i < v.NumField(); i++ {
 		field := t.Field(i)
 		value := v.Field(i)
 		switch value.Interface().(type) {
 		case Arg:
+			positional += fmt.Sprintf(" [%s]", strings.ToLower(field.Name))
 			fmt.Fprintf(w, "[%v]\tstring\t%v\n", strings.ToLower(field.Name), value.FieldByName("Help"))
 		case Flag[string]:
+			positional += fmt.Sprintf(" [%s]", value.FieldByName("Long"))
 			fmt.Fprintf(w, "%v | %v\tstring\t%v\n", value.FieldByName("Long"), value.FieldByName("Short"), value.FieldByName("Help"))
 		case Flag[bool]:
+			if field.Name != "Help" {
+				positional += fmt.Sprintf(" [%s]", value.FieldByName("Long"))
+			}
 			fmt.Fprintf(w, "%v | %v\tbool\t%v\n", value.FieldByName("Long"), value.FieldByName("Short"), value.FieldByName("Help"))
 		}
 	}
+	fmt.Printf("um %s%s\n", subcmd, positional)
 	w.Flush()
 }

sort/sort.go

@@ -37,7 +37,7 @@ func parseArgs(args []string) options {
 			}
 			opts.Key.Val = args[i+1]
 		case arg == opts.Help.Long || arg == opts.Help.Short:
-			flags.Help("tag", opts)
+			flags.Help("sort", opts)
 			return opts
 		}
 	}