Consider libconfig

[parasyte]

http://www.hyperrealm.com/libconfig/libconfig_manual.html#Configuration-Files-1

[kvark]

Thanks for suggestion!
Just started reading and saw a few showstoppers in here:

    A scalar value: integer, 64-bit integer, floating-point number, boolean, or string
    An array, which is a sequence of scalar values, all of which must have the same type
    A group, which is a collection of settings
    A list, which is a sequence of values of any type, including other lists 

So, it looks like there is no ability to have a homogeneous list of non-scalars. And no support for maps either.

[torkleyy]

Closing alternative issues and listing them in the wiki page.