No, I did not get that far, would've meant a larger rewrite of the ecosystem, the data files were created by other tools, already in "alternate form" [1] needing to be used by other programs as well. I stopped trying to load them with re2 (both Go and C++), after glancing over all those gigabytes of RSS, while Perl kept them in the 2-300 MB range. PCRE was a good compromise at the time, but with other tradeoffs, because C libs seem to be frowned upon in the Go community, ie. semi-official voices arguing how best to avoid them. :/ (eg: blocking inside C isn't under the gomaxprocs limit, costly overhead crossing the C boundaries, static binary troubles, less portability and so on)
#1. perl -MRegexp::Assemble -E'my @list = qw< foo fo0z bar baz >; my $rx = Regexp::Assemble->new->add( @list )->re; say $rx'
#1. perl -MRegexp::Assemble -E'my @list = qw< foo fo0z bar baz >; my $rx = Regexp::Assemble->new->add( @list )->re; say $rx'
(?^:(?:fo(?:0z|o)|ba[rz]))