Module for checking validity of MARC records. 99% of the users will want to do something like is shown in the synopsis. The other intrepid 1% will overload the MARC::Lint module's methods and provide their own special field-level checking.

What this means is that if you have certain requirements, such as making sure that all 952 tags have a certain call number in them, you can write a function that checks for that, and still get all the benefits of the MARC::Lint framework.