AppConfig is a bundle of Perl5 modules for reading configuration files and parsing command line arguments. Note that writing configuration files is not supported at this time.
AppConfig supports a relaxed configuration file syntax with support for flags (booleans), single and multivalue (lists or hashes) items. A defined default and validation routine or regex can be defined for each option.
Environment variable, file variable and tilde (~) are supported and may be applied to selected configuration options. For long blocks of text you can also use Perl HEREDOC syntax. Additionally there is also a mechanism to utilise all these same features via a CGI.