Re: "extract" command enhancement

[Paul Jackson <paulgjackson@xxxxxxxxx>]

How 'bout the following %BIF's. They seem like a good
choice but maybe they've been discounted earlier in
this thread:

%DAY
%MONTH
%YEAR
%CEN
%DATE
%TIME
- %HOUR
- %MIN
- %SEC
- %MSEC

Eg:
Eval  Day = %Day(Timestamp)
Eval  %Day(Timestamp) = 31

or

Eval %Date(Timestamp) = ISODate
Eval CurTime = %Time(Timestamp)

etc.

This seems pretty intuitive but obviously I do not
have the whole picture from the language development
point of view.

Comments?

-Paul Jackson

--- Jim Langston <jlangston@conexfreight.com> wrote:
> 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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===
Paul G. Jackson
IBM Certified Specialist - AS/400 RPG Programmer
Home: (425) 401-5016   pgjackson@ibm.net
                       paulgjackson@yahoo.com
Work: (425) 313-8594   pjackson@costco.com
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