Yes it is a list. This was added by an erratum (2.23) to handle EDIFACT. http://www.unece.org/trade/untdid/texts/d422_d.htm#p10 10. REPRESENTATION OF NUMERIC DATA ELEMENT VALUES 10.1 Decimal Mark The ISO representation for decimal mark is the comma ( , ) but point on the line ( . ) is allowed. See ISO 31/0-1981. Both these characters are part of the Level A and B sets in clause 5 and both alternatives are allowed. When the Service string advice, UNA, is used, its third character specifies the one character used in the interchange to represent decimal mark and thus overrides the above alternative use. The decimal mark shall not be counted as a character of the value when computing the maximum field length of a data element. However, allowance has to be made for the character in transmission and reception. When a decimal mark is transmitted, there shall be at least one digit before and after the decimal mark. For values represented by integers only, neither decimal mark nor decimal zeroes are used unless there is a need to indicate the degree of precision. Preferred 0,5 and 2 and 2,0 Allowed 0.5 and 2 and 2.0 Not allowed: ,5 or .5 or 2, or 2. The erratum has not been implemented yet by IBM DFDL. We have many users using our DFDL EDIFACT schemas, which define a variable with a default that the user can set to be '.' or ',' and that is overridden by the UNA value (if UNA is present). Som far it's not been an issue for any of them, presumably because they only ever use one or the other in an interchange. But it could occur, and IBM DFDL would incorrectly fail to parse the interchange. So to comply with the EDIFACT spec it is needed. The grouping separator is not similarly a list, because if both were allowed to vary, you have an ambiguity. EDIFACT does not allow grouping separators, hence it can allow both as the decimal separator. 10.2 Triad Separator Triad separators shall not be used in interchange. Allowed: 2500000 Not allowed: 2,500,000 or 2.500.000 or 2 500 000 Regards Steve Hanson Architect, IBM DFDL Co-Chair, OGF DFDL Working Group IBM Integration Bus, Hursley, UK smh@uk.ibm.com tel:+44-1962-815848 mob:+44-7717-378890 From: Mike Beckerle <mbeckerle.dfdl@gmail.com> To: "dfdl-wg@ogf.org" <dfdl-wg@ogf.org> Date: 10/02/2016 23:38 Subject: [DFDL-WG] clarification: textStandardDecimalSeparator Sent by: "dfdl-wg" <dfdl-wg-bounces@ogf.org> Is textStandardDecimalSeparator really supposed to be a List of string literals, or just a single string literal. ICU only supports a single one. Not sure if this is a mistake. Right now Daffodil just does Schema Definition Error if there is more than one string literal. Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com Please note: Contributions to the DFDL Workgroup's email discussions are subject to the OGF Intellectual Property Policy -- dfdl-wg mailing list dfdl-wg@ogf.org https://www.ogf.org/mailman/listinfo/dfdl-wg Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU