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How about using a select statement.
* Stay in loop until Cmd 1 is pressed
c dow not(*in01)
c eval action = *blanks
c eval category = *blanks
c eval descriptn = *blanks
c exfmt cbrdescdt
c movea '0000000' *in(30)
c select
*
* F5 will print report
c when *in05 = *on
c eval *in50 = *on
c exsr print
*
* Just a little error check to help keep ya in line.
c when action = *blanks
c eval *in31 = *on
*
* Add a record to the file
c when action = 'A'
c category chain crltycdr
c if not %found(crltycd)
c exsr error_check
c if NOT (*in32 = *on or
c *in33 = *on)
c eval crlcat = category
c eval crldesc = descriptn
c write crltycdr
c endif
c else
c eval *in30 = *on
c endif
*
c when action = 'C'
c category chain crltycdr
c if %found(crltycd)
c eval *in35 = *on
c exsr get_record
c exsr error_check
c if NOT (*in32 = *on or
c *in33 = *on)
c eval crlcat = category
c eval crldesc = descriptn
c update crltycdr
c endif
c else
c eval *in34 = *on
c endif
*
c When action = 'D'
c category chain crltycdr
c if %found(crltycd)
c movea '11' *in(35)
c exsr get_record
c exfmt cbrwindow
c if *in12 = *Off
c delete crltycdr
c endif
c else
c eval *in34 = *on
c endif
c endsl
c enddo
c eval *inlr = *on
That should be functionally equivalent, doesn't need any iters, and is
several lines shorter.
Joe Lee
>>> RPower@xxxxxxxxxx 01/31/2005 09:15:42 >>>
What's wrong with the Iter and Leave op codes? I've used them a lot in
the past, and will probably continue to do so in the future. I don't
like
the GOTO's and CAB's, but the LEAVE and ITER just make sense.
Especially
in screen processing. The following code is a looping screen. The
ITER
code helps when doing validation, and the LEAVE is a simple way to get
out. How could you code this without using them? BTW, this isn't my
code, but I was looking real quick to find an example lol.
* Stay in loop until Cmd 1 is pressed
c dow not(*in01)
c eval action = *blanks
c eval category = *blanks
c eval descriptn = *blanks
c exfmt cbrdescdt
c movea '0000000' *in(30)
*
* F5 will print report
c if *in05 = *on
c eval *in50 = *on
c exsr print
c iter
c endif
*
* Just a little error check to help keep ya in line.
c if action = *blanks
c eval *in31 = *on
c iter
c endif
*
* Add a record to the file
c if action = 'A'
c category chain crltycdr
c if not %found(crltycd)
c exsr error_check
c if *in32 = *on or
c *in33 = *on
c iter
c endif
c eval crlcat = category
c eval crldesc = descriptn
c write crltycdr
c else
c eval *in30 = *on
c iter
c endif
c endif
*
c if action = 'C'
c category chain crltycdr
c if %found(crltycd)
c eval *in35 = *on
c exsr get_record
c exsr error_check
c if *in32 = *on or
c *in33 = *on
c iter
c endif
c eval crlcat = category
c eval crldesc = descriptn
c update crltycdr
c else
c eval *in34 = *on
c iter
c endif
c endif
*
c if action = 'D'
c category chain crltycdr
c if %found(crltycd)
c movea '11' *in(35)
c exsr get_record
c exfmt cbrwindow
c if *in12 = *on
c iter
c endif
c delete crltycdr
c else
c eval *in34 = *on
c iter
c endif
c endif
c enddo
c eval *inlr = *on
Ron Power
Programmer
Information Services
City Of St. John's, NL
P.O. Box 908
St. John's, NL
A1C 5M2
Tel: 709-576-8132
Email: rpower@xxxxxxxxxx
Website: http://www.stjohns.ca/
___________________________________________________________________________
Success is going from failure to failure without a loss of enthusiasm.
-
Sir Winston Churchill
Tony Carolla <carolla@xxxxxxxxx>
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
31/01/2005 01:27 PM
Please respond to
RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>
To
RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>
cc
Subject
Re: Suggested technique
Hi Alan. Thanks again for the tip.
I always grapple with the idea of not using iter and leave also. I
don't see how it makes the code clearer to the reader, by eliminating
these ops. I took your example, and eliminated the iter, as follows:
Dou iSay;
iSay=*On;
// Find next memo seq# for member
SetGT(E) (CI.Family#:CI.Member#) Mmemo_I;
ReadPE(E) (CI.Family#:CI.Member#) Mmemo_I MI;
If %Found(Mmemo_I);
MO.Mmseq#=MI.Mmseq#+1;
Else;
MO.Mmseq#=1;
EndIf;
Monitor;
Write Mmorec MO;
On-Error *File;
iSay=*Off;
EndMon;
EndDo;
Now this is a very simple loop, and doesn't even transcend a page, but
in general, while perusing the code, you have to look to the beginning
of the loop to determine the condition of the loop. If using iter,
you also have to peruse to the top of the loop anyways, so what's the
diff?
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