OpenEuphoria

RE: exception handler

• Posted by George Walters <gwalters at sc.rr.com> Aug 25, 2004
• 506 views

I would like to suggest something along the lines of a Basic I've been 
using for a long time. It seems to work well.

on Error goto xxxxx (a labeled line)
then several items were available..
1. the line which caused the problem
2. the error code that occurred (i.e file not open. divide by zero, etc)

then you could decide what to do

abort the run or "resume xxxxx " a labeled line....

In euphoria it could be similar to the trace method

"with error" then onError("yourErrorRoutine")
onError("yourErrorRoutine") would set the routine to handle the error. 
this could be reset in the program to different routines  to handle the 
exceptions as needed. Then after fixing the problem (if possible) there 
needs to be a "resume" at the next statement. At least your program 
could display a resonable explanation to the user, saves what it needs, etc.

I'm certainly not a systems guy, hope this makes some sense

george