GNU parallel - easy JSON processing placeholder via jq expression

.parallelrc

--rpl '{[(.*?)]} uq(); $Global::use{"IPC::Open2"} ||= eval "use IPC::Open2; 1;"; my $jq = open2(my $jq_out, my $jq_in, "jq", "-Rrc", "[ try(fromjson) // . | $$1 | tostring ] | \@sh") or die "Could not open pipe to jq!"; print $jq_in $_; close $jq_in; $_ = do { local $/; <$jq_out> }; chomp; waitpid $jq, 0; $? && die'

readme.md

$ jo foo=bar | parallel 'echo {[.foo]}'
bar
$ echo -e "$(jo foo=bar)\t$(jo bad=baz)" | parallel --colsep=\t 'echo {1[.foo]} blah {2[.bad]}'
bar blah baz