Greetings fellows monks,
Today (as seen from here) I posted a question readline error behavior. Answers same to point me to return undef and set $!. This in turn raises another question. Here it is.

Looking at perlvar it appears that $! can be set, so setting the underlying C variable errno. Nevertheless, this only takes into account the numeric side of $!.

If one affects to $! a number not defined in errno.h, the stringification of $! gives Unknown error n, where n is the numerical value of $!.

Is it possible to modify the stringification of $! (obviously without touching at the perl intrpreter code) to include user-defined messages?

Obviouly I'd like to have these custom messages localized accordigly to the locale setted by the user.

Am I daydreaming in hoping there is a way to achieve this?

Thanks for helping

Leo TheHobbit

In reply to Setting $! to custom values by TheHobbit

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