Looks like you're gearing your config file to be easily parseable by people. I think you may find that's not as wise as you might like, since the programs need to unambiguously parse the thing.
You'd be better off with a compromise format that's parseable by both machines and (with some work) people. If you don't want that, then toss the thought of making the format parseable at all by people, and build yourself a maintenance tool instead. Make the file easy for programs to parse, and the tool easy for people to ues, and have the tool do the config file generation instead.