dot.conf is a simple configuration-file parser library written in C.
The configuration files created for dot.conf look very similar to
those used by the Apache Webserver. Even Container-Directives known
from httpd.conf can easily be used in the exact same manner as for
Apache-Modules. It supports various types of arguments, dynamically
loadable modules that create their own configuration options
on-the-fly, a here-documents feature to pass very long ARG_STR data
to your app, ${NAME:-default} style environment variable
substitution for arguments, and on-the-fly inclusion of additional
config files. Some behaviour can be toggled with flags at runtime.
To keep dotconf from printing out warnings, you can install your
own customized error handler.

WWW: https://github.com/williamh/dotconf