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While I don’t fully understand the sample data and your message structure, I suspect that there could be a fundamental problem. Assuming that the [TRN], [NM1] are optional segments, when Cloverleaf is parsing a message without TRN but has a NM1 segment, how would it be possible for Cloverleaf to recognize what it is seeing is an NM1 instead of a TRN?
Please also note that the ‘Condition Options’ determines the presence/absence of a segment using a field from a previous segment.
I would expect a very complicated and intelligent setup in order for this to work if it is at all possible. It would be nice if you can provide a more detailed view on your sample data as well as your message structure. For instance, does every segment ends with a new line character? Does the 6-8 characters always presence regardless of the presence of the segment?
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Ivan, Thanks for the reply. As for “Does every segment end with a new line character?”, the answer is ‘yes’. With respect to is position 6-8 valued for a segment regardless of the presence of the segment, the answer is ‘no’. If a segment is not present (i.e. TRN), then there will not be a line in the data that has TRN in positions 6-8. Regarding more detail about the data, suffice it to say that for each segment (ie. ISA, TRN NM1, etc.) there is a different FRL (which is what is inserted into the HRL definition); each segment has a different field/record layout.
I know that I can handle this type of transaction within tcl and use the GRM functions to access the data via my FRL’s (extracting position 6-8 from the current line, and apply the appropriate FRL with GRM), and then manipulate the data, but I would like to keep this within the context of the normal toolset for maintainability by others.
Hope this makes sense.
Thanks,
Jim Cobane
Henry Ford Health
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James, You can use a repeat while segmentName.fieldName to determine if the message consists of a certain frl.
You can use a condition on previousSegmentName.fieldName to determine if a message consists of a certain frl based on the existence of a previous segment.
These allows us to parse the following structure:
HL
[TRN]
[NM1]
[EQ]
[AMT]
[III]
[REF]
[N3]
[N4]
[PER]
[PRV]
[DMG]
[INS]
[DTP]
by doing
Top.hrl
HL Segment (with repeat while HL.Field6-8 is ‘HL ‘) pointing to HL.frl
Group Segment (with condition HL.Field6-8 is ‘HL ‘) pointing to Group.hrl
Group.hrl
TRN Segment (with repeat while TRN.Field6-8 is ‘TRN’) pointing to TRN.hrl
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I have trouble adding another layer of repeatition to handle the outer loop though. I will get back to this board if I have any new insights. And please let me know if you found out anything. Thanks.
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