Mike, the parsing and unparsing behaviour is not round trippable in this circumstance. While your Result gives rise to your Data, the same is not true the other way round. Regards Steve Hanson Architect, Data Format Description Language (DFDL) Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh@uk.ibm.com tel:+44-1962-815848 From: Mike Beckerle <mbeckerle.dfdl@gmail.com> To: Steve Hanson/UK/IBM@IBMGB Cc: dfdl-wg@ogf.org Date: 11/09/2012 18:46 Subject: Re: [DFDL-WG] minor spec correction Appendix 33 Ok I found language which makes this clear. I'll add the example row to the Appendix table. The answer is that the / is removed. So a row needs to say Data = "........................" Result = "............/........." ...mike On Tue, Sep 11, 2012 at 1:30 PM, Mike Beckerle <mbeckerle.dfdl@gmail.com> wrote: I'd like to confirm understanding of a particular simple case of escape sequences. Suppose the escape character is "/" Suppose the delimiter is ";". If the data stream contains abcd/efgh then does the logical data retain, or remove the escape character? (or cause an error?) This is the case where the escape character isn't escaping anything, so the question is whether its special status as escape character is therefor ignored, treating it as a constituent character, or it is some sort of error we detect. I was surprised to not find this as row 2 of the table in Section 31.1. ...mike On Tue, Sep 11, 2012 at 1:22 PM, Steve Hanson <smh@uk.ibm.com> wrote: Agree. Please make an editorial change. No need to raise an errata. Regards Steve Hanson Architect, Data Format Description Language (DFDL) Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh@uk.ibm.com tel:+44-1962-815848 From: Mike Beckerle <mbeckerle.dfdl@gmail.com> To: dfdl-wg@ogf.org Date: 11/09/2012 15:28 Subject: [DFDL-WG] minor spec correction Appendix 33 Sent by: dfdl-wg-bounces@ogf.org These tables are awesomely useful, but very badly labelled. Columns Data and Result should be labeled "Logical Data" and "Physical Data". ...mikeb -- Mike Beckerle | OGF DFDL WG Co-Chair Tel: 781-330-0412 -- 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 -- Mike Beckerle | OGF DFDL WG Co-Chair Tel: 781-330-0412 -- Mike Beckerle | OGF DFDL WG Co-Chair Tel: 781-330-0412 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