_optcomplete() {
        COMPREPLY=( $(COMP_LINE=$COMP_LINE COMP_POINT=$COMP_POINT COMP_WORDS="${COMP_WORDS[*]}" COMP_CWORD=$COMP_CWORD OPTPARSE_AUTO_COMPLETE=1 "$1") )
}



and then i bind using 

complete -F _optcomplete my_command

the results is like that


[root@sbs-ox5 sysaid]# ./sysaid manage-ou --display
Accounts"                                                 /OxObjects/AdminObjects                                   /OxObjects/ResourceObjects/ResourceGroups
"/Address                                                 /OxObjects/AdminObjects/AvailableServers                  /OxObjects/ResourceObjects/Resources
Book"                                                     /OxObjects/AdminObjects/AvailableServers/directoryServer  /OxObjects/SharedFolder
/Computers                                                /OxObjects/AdminObjects/AvailableServers/groupwareServer  "/Password
Configs"                                                  /OxObjects/AdminObjects/AvailableServers/imapServer       Policies"
/dhcp                                                     /OxObjects/AdminObjects/AvailableServers/smtpServer       /sudoers
/dns                                                      /OxObjects/AdminObjects/AvailableServers/webmailServer    "/System
/Groups                                                   /OxObjects/AdminObjects/DNSObjects                        /Users
Groups"                                                   /OxObjects/AdminObjects/SMTPObjects                       /Users/uid=fbe/addr
/Idmap                                                    /OxObjects/AdminObjects/SMTPObjects/MailTransports
/OxObjects                                                /OxObjects/ResourceObjects