>=head1 TITLE
>
>All perl generated errors should have a unique identifier

This looks awfully similar to RFC 80.  Certainly the exception objects RFC 
80 is thinking about can well have unique numeric attributes.

>All perl generated errors should have a unique identity. So that
>changes in the text should not cause breakage in code.

Amen.  Can this be merged with RFC 80, or do they need to live apart?

>=head1 IMPLEMENTATION
>
>Each unique identifier once assigned as part of a stable release
>of perl will be guarenteed never to be changed, or if the error
>text is removed, never to be reused.
>[...]
>or those of you who have ever read through the IBM Codes and Errors
>manual this will look familiar.
>
>For example
>
>   FIL0001W unable to close filehandle %s properly
>   PAR0003F Can't find label %s

Or %VMS-F-ACCVIO, access violation :-)

>=head2 Classification Schemes
>
>To be defined. Suggestions welcome.

I made a start in RFC 80.
--
Peter Scott
Pacific Systems Design Technologies

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