Ignoring repeating values?

Hello -

I have the following string:

[ CmdAV=show CmdArgAV=policy-map CmdArgAV=system CmdArgAV=type CmdArgAV=network-qos CmdArgAV=<cr> ]

Is it possible to use regex to leave only:

show policy-map system type network-qos <cr>

I don't need the [,], or CmdAV or CmdArgAV.