Hi,
Well, it's quite deep in the code. Going down through the chain
`config_load -> coyaml_readfile_or_exit -> coyaml_readfile`, it seems
that
you need to clone coyaml_readfile function and change `open_file` to
something that's calls yaml_parser_set_input_string instead
yaml_parser_set_input_file.
While `config_load` and `coyaml_readfile_or_exit` are just shortcuts,
and you're expected to copy the code and change it, if you need. The
`coyaml_readfile` function is not. Probably you can decompose/fix it
to support your use case and send a pull request.
--
Paul