Re: "extract" command enhancement

[Jim Langston <jlangston@xxxxxxxxxxxxxxxx>]

Well, how about a time field and retrieving Hours, Minutes, Seconds?
It would be useful there.  And I vote for %subfld also (sub field).

Regards,

Jim Langston

boldt@ca.ibm.com wrote:

> Jon wrote:
> > >> The name we're currently leaning towards is "%subdtz".
> > >> As in, the sub-part of a date, time, or timestamp value.
> >
> >Not wild about that one Hans - for one thing I don't think I'd ever be able 
>to
> >remember it <bg>.  It's just too arcane. One of the things I was trying to
> >suggest with %Part - %Segment - %Subfld - %Item was that the portion 
>extracted
> >depended on the *D or whatever that was coded - I don't see that the BIF 
>needs
> >to have a strong association with date/time/timestamp per se.  Who knows -
> there
> >may be other things we want to extract components from in future - why tie it
> to
> >DTZ?
>
> I agree that "%subdtz" is a bit awkward.  How about "%subd" or
> "%subdt"?  (I'm currently leaning towards "%subdt".)
>
> I sympathize with what you're saying about making it general,
> but in the absence of specific scenarios, it's hard to picture
> the usefulness.  Furthermore, different compound objects have
> different characteristics which make the design of a common
> extract bif difficult.  Look at the current precedent, "%subst".
> The attributes of a component of a string (position, length)
> are different than the attributes of a component of a date,
> time, or timestamp value (year, month, etc.).  For some other
> possible compound type, the attributes of a component will
> likely be different again.
>
> Cheers!  Hans
>
> Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com
>
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