Re: What's new in 2.5?
- Posted by "Christian Cuvier" <Christian.CUVIER at agriculture.gouv.fr> Sep 08, 2004
- 482 views
> On 8 Sep 2004 11:52:07 +0200, Christian Cuvier > <Christian.CUVIER at agriculture.gouv.fr> wrote: > > >>>Btw, this scheme extends beyond out of range indexes. "ifx sqrt(x)=y then..." >>> >>>would just be a false conditional if x=-1. > > > This is exception handling under a different name. Instead of: > > ifx sqrt(x)=y then > <code> > end ifx > > you want: > > try > if sqrt(x)=y then > <code> > end if > catch > <do nothin> > end try > > I think your best bet is to wait for 2.5 and see if you can add this > handling yourself. Of course you might want to use ifx as a shorthand > notation, but once you allow this on an if statement, you will want > the same handling on while loops, whilex is a needed addition indeed. > for loops, hmmm... I'd rather oush for a wfor; then wforx might be more relevant. > assignments, if rhs doesn't exist, don't assign. Sounds neat, but there are people out there woh don't like this. > procedure > calls, function calls, ...... > I can remember your reluctant view of preventive action being taken by having a hook monitor the arglist. This would help implementing default routine params, for instance. Corrective action is seldom better than prevention. > Regards, > Pete Bottom line: you are right, as long as the handler can resume program execution. And I'm afraid I read posts in the opposite direction by RC. CChris