Preferred program config file format and parsing library?

[Baz via Digitalmars-d-learn]

On Saturday, 2 August 2014 at 12:42:00 UTC, Gary Willoughby wrote:
> What is the preferred format people here use for program config 
> files? Json, Xml, ini, etc?
>
> Also what libraries exist to parse the preferred format?

Preffered one is the one a RTL(run time library) or a VCL(visual 
component library) uses.
I hate those using markups, like xml. ugly, hard to edit eg in 
notepad.
I hate ini. ini is kind of a beginner format. ini is ridiculous.

A good config file format has to
- be editable.
- be strongly used in the lang. standard library: the one used 
cause it's good.
- not ini. ini files = child happy to discover he can save and 
load settings.
- convertible: even if it's a proprietary format it must be 
convertible to json or xml or yaml (or ini for the children). 
https://en.wikipedia.org/wiki/Marshalling_(computer_science).