Old school
AppConfig
New school
File::UserConfig + Config::Any +
Data::Validator
Data::FormValidator
Params::Validate
Config::Validate
MooseX::Params::Validate
Data::Constraint
Validator::Custom
MojoX::Validator
FormValidator::Simple
Data::Validation
...

In reply to Re: reading default configuration parameters from file and overriding these parameter values on command line by Anonymous Monk
in thread reading default configuration parameters from file and overriding these parameter values on command line by spikkie

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