--- In [email protected], "Art Douglas" <[EMAIL PROTECTED]> wrote:
>
> Henk-Jan,
>
> Some trading partners have less sophisticated translation software
> (home-grown) than others. As with most EDI elements, the best
practice is
> to verify the use of separators/terminators with your trading partner.
>
> My practice is to determine a default set of delimiters which I will
send.
> My preference is vertical bar (|) for element, carat (^) for
sub-element,
> and tilde (~) for segment. Then should the trading partner be unable or
> unwilling to deal with these, I try to accommodate their wishes.
So I guess they best way to deal with this is to have a default set of
separators/terminators, and to be able to send partner-specific
separators/terminators.
Do trading partners force the use of EBCEDIC?
>
> Note that in establishing the element separator, one can reliably
select the
> first character after the string ISA in the first segment of the
message.
> But it is not reliable to count positions to find the sub-element
separator.
> This is because of the frequently-misunderstood ISA Sequence Number,
which
> is defined as a numeric field. X12 indicates that a numeric field
may have a
> sign, which is only transmitted when negative, and is not counted in the
> minimum/maximum length. Therefore, it is theoretically possible to
have an
> ISA Sequence Number that takes up more characters than the standard
shows.
> One must count element separators to parse for the sub-element
separator and
> the segment terminator. Theoretically.
This looks indeed kind of theoretical.
For the moment, I'll count positions (but allowing 'blocked'format).
If it turns up, it is possible to adapt to this.
kind regard, Henk-Jan Ebbres
...
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