Invisible XML CG agenda, 14 April 2026

Meeting: Invisible XML Community Group
Date: 14 April 2026
Chair: Steven
Scribe: Steven (in John’s absence)
Present: 
Regrets: John 

Agenda: 

Topic: Accept the minutes of the previous meeting

Previous meeting: https://www.w3.org/2026/03/03-ixml-minutes.html

Topic: Review of open actions

2024-03-05-c: SP to prepare pull request to resolve issue #139 (new grammars, new README)
2026-03-03-a: Norm construct a page of links to the minutes
  Done: https://invisiblexml.org/minutes/
2026-03-03-b: Bethan to try making the title screen
2026-03-03-c: Steven make videos available
  Done
2026-03-03-d: Norm to ask around again about where to host the videos
  Done (no results yet)
2026-03-03-e: Norm will attempt to collate the slides
  Done, https://invisiblexml.org/events/symposium2026/#slides
  (Several sets of slides have not been provided by the presenters yet.)
2026-03-03-f: Norm to fix the titles. Except for technical terms like "ixMl"
  Done?
2026-03-03-g: Norm to write to Jirka and ask if there's a "spec update" slot planned for XML Prague (QT4CG and iXML)
  Done. Yes, there will be, but I’m not sure what the details are

Topic: Status reports

Topic: Progress report on symposium output?

Topic: New issues

+ #357 PEG feature parity: ordered choice, lookahead

Topic: Open issues

+ #349 Greedy matching feature

+ #334 Move iXML off GitHub?

  [[https://github.com/invisiblexml/ixml/issues/334]]

  Norm is working on it.

+ #332 Invisible XML media type

  https://github.com/invisiblexml/ixml/issues/332

  Pending discussion with W3C.

+ #310 Not possible to set priority on rules

  https://github.com/invisiblexml/ixml/issues/310

  Apparently subsumed by the ambiguity umbrella topic?

Topic: Ambiguity umbrella topic

  It was suggested that “ambiguity” is at the root of a number of issues/topics
  including rule priorities, negation, the subtraction operator, etc. How do we
  want to organize the process for tackling these issues?

Topic: Modularization

  Possible discussion of some of the ideas presented in Steven’s MarkupUK paper.
  (I’d like to point to it, but the MarkupUK proceedings doesn’t seem to support
  doing that. At least, the frames version, which is the only version I can
  find, doesn’t.)

  See also: https://nineml.org/proposals/2026/modularity/

Topic: Next meeting

Normal date and time for ixml meetings is every other Tuesday at 3 pm British
Time, 4 pm Central European Time (15:00 UTC during winter time, 14:00 UTC during
summer time)

On the usual schedule, the next meeting would be Tuesday, 28 April, at 15:00 BST
for one hour.

For the record: the current state of the minute-taking rota is:

+ John Lumley, 2026-02-03
+ Steven Pemberton, 2026-02-17
+ Norm Tovey-Walsh, 2026-03-03

                                        Be seeing you,
                                          norm

--
Norm Tovey-Walsh
CEO, Saxonica

Received on Monday, 13 April 2026 11:06:29 UTC