Re: Select/When vs. If/ElseIf

[Tony Carolla <carolla@xxxxxxxxx>]

Personally, I use If/Else/EndIf if there are only two possibilities,
and I only use the Else if there is something to do either way.  For
all other situations, I use Select/When/Other.  If I revise a program,
and there is an If/Else/EndIf that now has another possiblilty, I
replace it with Select/When/Other.  I don't make use of the ElseIf
clause.

But this brings up another idea I had.  Occasionally, I will encounter
a set of conditions that may or may not be true, and for each
condition, a different action must be taken, but if any one of the
conditions in the set are true, I want to do something in addition to
the different tasks for each one in the set.  ex.:

Select;
   When A=5;
      // take action 
       Except detail
   When A=7;
      // take different action
       Except detail;
    When A=8;
      // take different action
       Except detail;
EndSL;

In this snippet, I want to print the 'detail' exception format if A=5,
7 or 8, but not otherwise.  Wouldn't it be nice to have an 'EitherWay'
op, which was executed if any of the when clauses were true?  i.e.

Select;
   When A=5;
      // take action 
   When A=7;
      // take different action
    When A=8;
      // take different action
     EitherWay;
       Except detail;
EndSL;

Wacky idea?  What do you think?

On Wed, 29 Dec 2004 16:12:51 -0600, Kurt Anderson
<kjanderson@xxxxxxxxxxxxx> wrote:
> Is there a difference to these two types of condition checking?
> They seem identical in function at a high level, so I'm unsure if one is
> better performance-wise or something.  I guess I'm looking for something
> to distinguish the two so I know when to use one and when to use the
> other.
> 
> Thanks,
> 
> Kurt Anderson
> Application Developer
> Highsmith Inc.
> W5527 State Road 106, P.O. Box 800
> Fort Atkinson, WI 53538-0800
> TEL (920) 563-9571  FAX (920) 563-7395
> EMAIL kjanderson@xxxxxxxxxxxxx
> 
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