Package config parses files with format similar to INI files. Comments starts with '#' or ';'. Each line define a key and a value, both strings. Between them you can use =, : or just spaces. In the above example the key is 'key' and the value is 'value with spaces'. You can also specify sections: All top level options are grouped in a main section. The main section name is passed to the ParseFile function. ParseFile returns a map where keys are section names, and values are options. Options are simple map with string for both keys and values. Example file: Usage example: