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Okay, say you have a 3rd field with 2 keys, FileName and FieldName. Each record would also contain Start and Length. So... You get a record from File1. You look at your File2, and it says HD 2 CHR LOGFILE FLD2 Chain to this new key file you made on "LOGFILE" and "FLD2", and you would have a record, LOGFILE FLD2 32 10 (32 being the starting position and 10 being the length). Now, it is fairly simple to open up, or have open, the LOGFILE. You would have the buffer as one long character string. Eval %SubSt(LOGBUFF, 32, 10) = ReadVal Creating your Keyfile is not as hard as you would think. DSPFFD (Display File Field Description) to an Outfile. Create your key file from that. Regards, Jim Langston Marcin Sagan wrote: > > >>> "James W. Kilgore" <qappdsn@attglobal.net> 03/21 12:51 >>> > File 1 has a variable format string of data. Sort of like a data queue. >It's just a character string of varying length. Within the string (like the >first few positions) is there a code that let's you know what the string >identifier or format is? > > Exactly it is. > > >>>Is this a CGI application where each an every variable can have different >lengths or is it a fixed format? > > No, this is EDI aplication. And fixed format of variable/message is given in >format file. > > >>>Now when you talk about file 2, is it a list of from-to positions so you >can walk down the character string of file 1 and parse out the data or is file >2 an externally defined file that you can use in your program as a data >structure and parse by a simple MOVE command or is it a list of keyword/value >pairs to assist you in parsing? > > No, we know the data separator "+" and with this we can tokenize string. File >2 contains description of each subsequent token. I will paste simplified >format of this file again: > > Tag Element Type .. Destination File Destination Field > HDR 1 Num .. LOGFILE FLD1 > HDR 2 Char .. LOGFILE FLD2 > SND 1 Num .. ORDERS FLD1 > SND 2 Num .. ORDERS FLD2 > . > . > SND N Date .. ORDERS FLDN > ADD 1 Num .. DETAILS FLD1 > . > . > ADD N Char .. DETAILS FLDN > EOD 1 Num .. LOGFILE FLD3 > > The goal is to write data from message to files/fields specified in this file >2 > > Than You James > > > > > > > > > > > > > ! > ! > > > > > > > > > > > > > ! > ! > > +--- > | This is the RPG/400 Mailing List! > | To submit a new message, send your mail to RPG400-L@midrange.com. > | To subscribe to this list send email to RPG400-L-SUB@midrange.com. > | To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com. > | Questions should be directed to the list owner/operator: david@midrange.com > +--- +--- | This is the RPG/400 Mailing List! | To submit a new message, send your mail to RPG400-L@midrange.com. | To subscribe to this list send email to RPG400-L-SUB@midrange.com. | To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +---
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