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sebastian · Posted: Thu Oct 14, 2004 6:42 am Post subject: Neon math expressions

Neon Formatter 2.1

Our group is having some challenges with a math expression in an output format. The structure of the message is:

Compound_format_1
Flat_format_1(mandatory, not repeating)
Compound_format_2(mandatory, repeating)
Flat_format_2(mandatory, not repeating)
Compound_format_3(mandatory, not repeating)
Problem_Flat_format_3(mandatory, not repeating)
Flat_format_4(mandatory, not repeating)
Flat_format_5(mandatory, not repeating)
Flat_format_6(mandatory, not repeating)
Flat_format_7(mandatory, not repeating)
Compound_format_4(mandatory, not repeating)
Flat_format_8(mandatory, not repeating)
Flat_format_9(optional, repeating)

The Problem_Flat_format_3 segment contains fields that source both repeating and constant segments from the input format. For the constant data, we use ACCESS PARENT INSTANCE. For the repeating data we use ACCESS USING RELATIVE INDEX for access modes. These fields produce the expected result.

We defined one field that uses an ouput control which in turn uses a collection containing a math expression, LEFT_JUSTIFY, and a length definition of 15. The math expression multiplies two operands that are both input fields in the same input repeating segment.

So for 3 occurences of an input detail message, we expect the following:

FLDA(sub1) * FLDB(sub1) = result1
FLDA(sub2) * FLDB(sub2) = result2
FLDA(sub3) * FLDB(sub3) = result3

What we have found is that when the field with the output control calculation has an input field name of 'NONE', we get the result1 3 times. When the output control calculation has an input field name of FLDA, we get the the following:

FLDA(sub1) * FLDB(sub1) = result1
FLDA(sub2) * FLDB(sub1) = bad-result
FLDA(sub3) * FLDB(sub1) = bad-result

When the output control calculation has an input field name of FLDB, we get the the following:

FLDA(sub1) * FLDB(sub1) = result1
FLDA(sub1) * FLDB(sub2) = bad-result
FLDA(sub1) * FLDB(sub3) = bad-result

It is as if the defined input field is the only variable that is allowed the multiple array reference.

Has anyone encountered something similar to this and if so how how you resolved this problem?

Any help is greatly appreciated.

Sebastian
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