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RE: Swedish chars in EDIFACT
Ah, the wonders of international character sets. Question: When you say
"We have verified that the source data produced by the supplier is exactly
correct and coded perfectly for ISO 8859-1, as implied by UNOC," do you mean
that all the characters in the interchange appear to be correct or did you
verify that the actual bit patterns matched the expectations of ISO 8859-1?
If the former, then the verification is probably of limited value. ISO
8859-1 implies not only certain character pictures, but also very specific
bit patterns associated with each.
Supposing, and we're getting into pretty murky waters here, that the Swedish
sender's system is configured with the Swedish ASCII character code page and
the receiver's system is configured with the US ASCII character code page.
Assuming further, as you say, everything was sent in binary mode with no
byte values changed, the character that appeared on the receiver's US ASCII
system would probably show some variations in the characters even though the
byte values are the same.
One of the big problems with international network traffic is that the
actual character set designation of the transmitted data is unknown over the
transmission medium (particularly if transmission is truly binary in which
case you're effectively shipping bytes, not characters per se). Therefore,
the endpoints must make assumptions with respect to the most appropriate
code page (usually the local default is used).
We've encountered similar problems when using simple things like FTP (binary
_and_ ASCII modes, actually).
The above discussion in and of itself doesn't provide a solution, but might
help spark some ideas on how to approach finding one. Anyone else find a
way around this? Are there any protocols out there that actually work well
with character code page issues?
Best regards,
Bill Chessman
Inovis(tm), Inc.
-----Original Message-----
From: Andrew BK [mailto:
Sent: Tuesday, May 13, 2003 2:44 PM
To:
Subject: [EDI-L] Swedish chars in EDIFACT
Hi everyone,
I'm testing INVOIC coming from a Swedish supplier. We're using
EDIFACT syntax version 3 and message version D.98A.
UNB+UNOC:3+...
UNH+...+INVOIC:D:98A:UN'
We have verified that the source data produced by the supplier is
exactly correct and coded perfectly for ISO 8859-1, as implied by
UNOC.
The supplier is using IBM Information Exchange (EUR system), and
interconnecting to our VAN. I think they are using OFTP to upload to
IBM.
The data is damaged on arrival. We are convinced it is being damaged
in its pass through IBM. Something somewhere is not 8-bit clean. Is
this a known deficiency with OFTP? I have previously been told by IBM
IE that they process EDIFACT data in binary mode. Any recommendations?
sent from supplier ABCDXYZÅÄÖ1234567890
Arrived ABCDXYZ»«þ1234567890
Sent from supplier abcdxyzåäö!"#¤%&/()=?@£${[]}|§½EUR
kom fram abcdxyz|¯Ö!"#á%&/()=?@à${[]}|çËEUR
Thanks,
Andrew
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