Autrijus Tang wrote:
So, this now works in Pugs with (with a "env PUGS_EMBED=perl5" build):
use Digest--perl5;
my $cxt = Digest.SHA1;
$cxt.add('Pugs!');
# This prints: 66db83c4c3953949a30563141f08a848c4202f7f
say $cxt.hexdigest;
This includes the "Digest.pm" from Perl 5. DBI.pm, CGI.pm etc will
also work.
Now my question is, is my choice of using the "perl5" namespace indicator a
sane way to handle this? Is it okay for Perl 6 to fallback to using Perl 5
automatically? Or should I use something else than "use" entirely?
Thanks,
/Autrijus/
Personally, I question the need for any flag saying it's perl5, and
actually would prefer there be no such thing.
Consider S01: "Migration is important. The perl interpreter will assume
that it is being fed Perl 5 code unless the code starts with a "class"
or "module" keyword, or you specifically tell it you're running Perl 6
code in some other way,", which sounds to me like a "yes" to your
fallback question.
On the migration front, when someone ports Digest.pm to Perl6, I get a
"free" upgrade, assuming the module author was kind enough to up the
version number.
Glancing at S11, I see where you're coming from. There is some logic in
giving all the p5 modules an author of "perl5", since they will not have
one on their own. However, I think the calling syntax would have to be
"use Digest-(Any)-perl5;" to force the usage of a perl5 version.
-- Rod Adams
