Open Grid Forum: Data Format Description Language Working Group Weekly Working Group Conference Call 13:00 GMT, 17 September 2008 Attendees Mike Beckerle (Oco) Steve Hanson (IBM) Alan Powell (IBM) 1. Visit actions Actions updated below 2. Hidden proposal Agreed to adopt proposal for hidden element to be a reference to a group. Decided not to have dfdlHidden=true on referenced group/sequence be more composable. 3. WTX unresolved items. 3,4 agreed to drop textCharacterSize and DBCSOnly from dfdl V1 7 Padding; deferred pending proposal from IBM (WTX) 9 Add PadRequiredOnInput to meet WTX requirement - resolved 17 finalTerminatorCanBeMissing, finalPostFixSeparatorCanBeMissing. Agreed to drop these properties and change the default syntax of terminator and postFixSeparator to be optional on parsing the last element of a sequence but always written on unparsing. remaining items to be discussed on next call. 4. AOB Next call 24th Sept Meeting closed, 14:05 GMT Actions raised at this meeting No Action 016 AP: add hidden changes to spec 017 All: Review EndOfData changes Current Actions: No Action 003 AP: Update spec from WTX document 13/8: All resolved issues have been added to spec. Remaining unresolved items need discussion 10/9: Alan will pull out the remaining unresolved items and circulate for discussion next week 17/9: Doc distributed and partially discussed 004 MB: Mike will also author a new section in response to comments from Sandy Gao and Suman Kalia, explicitly connecting syntax with DFDL semantics 16/7: no progress 10/9: Mike not convinced this is necessary. Steve to talk to Sandy to see if it is needed for any IBM implementation that extends the existing XML parsing framework 006 SH: Distribute hidden proposal 16/7: Done. MB to review 13/8: MB to review 10/9: Mike has located this and will review 17/9: Proposal agreed 007 AP: enum + expression wording 13/8: no progress 10/9: No update 17/9: No update 011 SH: Update decimal supplement 13/8: Editorial changes needed. 10/9: Alan to incorporate into main spec 17/9: No update 012 ??: Update decimalCalendarScheme 10/9: Not allocated yet 17/9: No update 013 MB: Description and use cases for EndofData syntax 10/9: Steve didn't receive this mail, he now has and will review 014 SH: Use cases for lengthKind pattern on binary fields. 10/9: Not done 17/9: No update 015 AP: removed extended floats 10/9: No update 17/9: No update 033 Work items: No Item 001 String XML type (Ian P) - Apr 30, 2008 002 Escape schemes (Ian P) - Apr 30, 2008 003 Variables - ??, 2008 (Mike) 004 Selectors (Suman) - Apr 30, 2008 005 Improvements on property descriptions - ??, 2008 (All - split TBD) 006 Envelopes and Payloads (Steve) - Apr 30, 2008 007 (from draft 32) valueCalc (Mike) - ??, 2008 *Mostly complete* 008 (from draft 32) Property precedence for writing (Steve) - *complete but under review* 009 (from draft 32) Variable markup (Steve) - Mar 31, 2008 *proposal needs writing up* 010 (from draft 32) Assertions, discriminators and choice, including discussion of timing option (Suman) - Mar 31, 2008 * in progress * 011 (from draft 32) How speculative parsing works (combining choice and variable-occurence - currently these are separate) ??, 2008 (IBM) * in progress * 012 (from draft 32) Reordering the properties discussion: move representation earlier, improve flow of topics ??, 2008 (Alan) * not started * 013 (from F2F) New scoping rules 014 (from F2F) Occurs, OccurSeparator changes 015 (from F2F) choices and Output (Mike) 016 (from F2F) xpath forward references (Alan) *complete* 017 (IBM WTX review) Minor agreed updates (Alan) *complete* 018 (IBM WTX review) Review generateNewLine (Alan) *complete* 020 (IBM WTX review) Special value for zero seen eg 'zero'. (Steve) 021 (IBM WTX review) 'EndOfData' changes (Alan) 022 (IBM WTX review) Unresolvable choices - infoset changes *complete* 023 (IBM WTX review) separatorKind=?prefix? ?infix? or ?postfix? (Alan) 024 (IBM WTX review) StopValue clarification (Alan) 025 Augmented infoset and unparsing (Alan) Alan Powell MP 211, IBM UK Labs, Hursley, Winchester, SO21 2JN, England Notes Id: Alan Powell/UK/IBM email: alan_powell@uk.ibm.com Tel: +44 (0)1962 815073 Fax: +44 (0)1962 816898 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