This is your friendly reminder that an SG16 telecon will be held
tomorrow, Wednesday September 9th, at 19:30 UTC (timezone conversion
<https://www.timeanddate.com/worldclock/converter.html?iso=20200909T193000&p1=1440&p2=tz_pt&p3=tz_mt&p4=tz_ct&p5=tz_et&p6=tz_cest>).

This meeting will be conducted via Zoom. To attend, visit
https://iso.zoom.us/j/8414530059 at the start of the meeting. Please
contact me privately if necessary for the meeting password.

The agenda is:

  * P2178R1: Misc lexing and string handling improvements
    <https://wg21.link/p2178r1>
      o Discuss proposal 1: Mandating support for UTF-8 encoded source
        files in phase 1
  * P2194R0: The character set of C++ source code is Unicode
    <https://isocpp.org/files/papers/P2194R0.pdf>

For the UTF-8 discussion, please take some time ahead of the meeting to
consider the following concerns:

  * Migration strategies for non-UTF-8 projects to transition to UTF-8,
    possibly incrementally.
  * Migration strategies for implementors to transition system headers
    to UTF-8, possibly incrementally.
  * Support for differently encoded source files within a single
    translation unit.
  * Support for differently encoded primary source file within a single
    project.
  * Error handling for ill-formed UTF-8 sequences in each of:
      o Comments
      o String literals
      o Elsewhere.
  * Handling of BOMs.
  * Whether an in-source encoding annotation is needed and what form is
    should take:
      o A magic comment (like Python)
      o A pragma directive (like xlC)

A very rough draft of a paper discussing these concerns is available at
https://rawgit.com/tahonermann/sg16/master/papers/dyyyyr0-utf-8-source-files.html.
We will **not** discuss this paper at this meeting, but the Existing
Practice section
<https://rawgit.com/tahonermann/sg16/master/papers/dyyyyr0-utf-8-source-files.html#existing_practice>
may be informative (please ignore the rest of the draft for now).

No decisions will be made at this meeting, but direction polls are expected.

Tom.