Re: "extract" command enhancement

I love it.  Clean and simple.

-----Original Message-----
From: Paul Jackson <paulgjackson@yahoo.com>
To: RPG400-L@midrange.com <RPG400-L@midrange.com>
Date: Tuesday, September 21, 1999 2:12 PM
Subject: Re: "extract" command enhancement


>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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