Ack. 
Copy edits, will fix in this revision. 

On Thu, Jun 4, 2020, 19:29 Hubert Tong <hubert.reinterpretcast@gmail.com> wrote:
More nitpicks:

are emitted. it is either
=>
are emitted. It is either

if a a string
=>
if a string

tables in the unicode database
=>
tables in the Unicode database

gcc, it is accepted by clang and msvc
=>
GCC, but it is accepted by Clang and MSVC

-- HT

On Thu, Jun 4, 2020 at 6:15 PM Steve Downey via SG16 <sg16@lists.isocpp.org> wrote:
Posted as Draft at https://isocpp.org/files/papers/D1949R4.html
If there are no objections, I will update to P later this evening and post to the EWG list. 

Diff:
https://github.com/steve-downey/papers/commit/a5a928b12b5664de57d5c0d8a9ca6ba4200d168b
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