Trapping error before _ALERT

[Jacek Czerwinski <jcz-lua@...>]

Hi Everybody!

How can I trap error, get filename, line, maximum of infos - BEFORE
error message is formatted into string.

Analyzing the error string isn't too much 'profi'...

I CAN use (and replace) _ALERT but _ALERT is too late.

-- 
Regards,
 Jacek Czerwinski