Of course the syntax cannot be
#do
...
#while(...)
since you may want to put a regular #while loop inside the do-while loop.
Perhaps something like:
#do
...
#dowhile(...)
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
