> Funnily enough, we were forced to use Lua for
> [c9s](https://gitlab.com/redhat/centos-stream/rpms/ruby/-/blob/stream-ruby-3.3-rhel-9.6.0/macros.rubygems?ref_type=heads#L15),
> because RPM does not support %{sub:...} there. ATM, I don't think it is more
> readable nor shorter. But admittedly, it could also be written different way
> ...
Yeah you'd want to write the whole macro in Lua, not just parts of it. And
format like you would do regular code - just as a silly example:
```
%mymacro() %{lua:
function helper(myarg)
return myarg.."-helper"
end
if arg[1] then
print(helper(arg[1]))
else
print("no arguments")
end
}
```
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