On Sun, 6 Oct 2019 at 18:39, Alan Mackenzie <acm@muc.de> wrote:

> In article <mailman.1087.1570362019.2651.bug-gnu-emacs@gnu.org> you wrote:
> > "Bob" <purchasebyemail1@comcast.net> writes:
> >>   struct Bar<::Foo1>         // "(show-paren-mode)" does not match `>`
> to `<`
> The pertinent < and > are not being marked with
> syntax-table text properties, hence can't be recognised as parens.
>

Digraphs? (Just a thought.)

Best,
Richard.