Open Grid Forum: Data Format Description Language Working Group Weekly Working Group Conference Call 13:00 GMT, 26 November 2008 Attendees Steve Hanson (IBM) Mike Beckerle(Oco) Alan Powell (IBM) 1. Moving to XSD 1.1 as base for DFDL Continued discussion on benefit of moving to XSD 1.1 Discussed XSD assert and XPATH Restrictions - Only on complex types - Path steps are restricted to only match information items within the element being ·assessed·. Decided XSD 1.1 assert cannot replace dfdl:assert as it occurs in more places and has more function Decided not to rename dfdl:assert even though it is similar to xsd:assert as it properly describes function XSD 1.1 assert is for validation only and has no effect on dfdl parsing and unparsing. MB to investigate whether dfdl variables can be used to allow dfdl xpath paths to be restricted in the same way as XDS 1.1 as part of the existing variable action item. 2. Action Items/ Work Items. Actions 003/018 padding to minlength - discussed WTX response and AP to investigate adding dfdl:minlength Work items 013 Scoping rules. Reviewed current description in spec and agreed section on overriding should be deleted. 3. AOB Next call 3 December Meeting closed, 13:15 GMT Actions raised at this meeting No Action 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 15/10: All updateds complete except minlength 22/10: No update 12/11: Updates have been sent to wtx to review. Will chase up for comments 012 AP/SH: Update decimalCalendarScheme 10/9: Not allocated yet 17/9: No update 24/9: Add calendar binary formats to actions 22/10: No progress 018 AP: Agree padding to minimum length 15/10: Needs documenting 22/10: No update 26/11: discussed and AP to suggest dfdl:minlength 020 SH: Resolve packedDecimalSignCodes behaviour depends on NumberCheckPolicy 22/10: No progress 023 MB: Review Schema 1.1 024 String XML type 025 Escape schemes 026 SH: Envelopes and Payloads 027 Property precedence tables 028 Variable markup 029 valueCalc (output length calculation) Closed actions: 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/Alan) - 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) - 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 complete 014 (from F2F) Occurs, OccurSeparator changes complete 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) complete 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? complete 024 (IBM WTX review) StopValue clarification (Alan) complete 025 Augmented infoset and unparsing (Alan) 026 Hidden changes complete 027 Add decimal supp to main spec complete 028 Remove extended floats complete 029 AP: enum + expression wording complete 030 All: Document new EndOfData changes 031 AP: Document defineTextNumber etc complete 032 AP: Document textNumberRepresenation and binaryNumberRepresentation complete complete - specification updated 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