I want to write some methods that take named parameters, for all the usual reasons. The basics is very simple -- just pop the @_ array into a hash. But, deatils and nuances will expand that code. For example, noting unknown parameters rather than ignoring them; and handling default values. When doing a bunch of functions, the code becomes repetitive and it makes sence to have a common module to do it.

So, is there a nice robust and feature-rich module already published that does this? Or, got an example of how you do it?

I'm specifically interested in common validation code. Just off the top of my head, I'm thinking that a prototype hash can list the keys allowed along with values that mean something to the validation process. Or, if only testing for unknown parameters, a single function that checks to see if one list is not a subset of another list would do the trick. But, why not give details and help info as well, much in the same way as command-line arguments?

—John

In reply to Passing by Named Parameter by John M. Dlugosz

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