Recognizer interface change in R2?

[Thomas Weigert]

Per the Docu, the recognizer setting "rejection" can be used by any recognizer setting-aware method, and "new" is one of them, I understand.

However, the following fails:

  DB<6> Marpa::R2::Scanless::R->new({ grammar => $grammar, rejection => 'event' });

Bad named argument(s) to $slr->new() method: rejection

Marpa::R2 exception at (eval 148)[/usr/share/perl/5.26/perl5db.pl:738] line 2.

This used to work a year ago. Did anything change about these options that is not discussed in the docu?

I am on Ubuntu 17.10.

[Thomas Weigert]

My installation is at:

libmarpa-r2-perl is already the newest version (2.086000~dfsg-6build2).

[Jeffrey Kegler]

Looks like you're running 2.086.000 which is really old, 2014-06-01.  The current stable in 4.000.000 (March 2017).

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[Thomas Weigert]

Thanks. Does that mean installing from the ubuntu repos is not the recommended way of installing Marpa?

As you can see from the message, it claims it is the current latest version.

[Jeffrey Kegler]

Based on this, I couldn't recommend it. :-)

The usual method is installation from CPAN, and it's the only one I use.  Anyone out there who does anything else?

Looks like Ubuntu gets its Marpa::R2 from Debian, which is still at 2.086000.  It's a common problem with the Debian perl packages that they are quite old.

[Thomas Weigert]

I confirm that this problem does not occur in 4.000.000.

I installed via CPAN and got the latest there.

Thanks for the help. I must have used the CPAN version in the past and then switched to the debian library for convenience. Who would have thought these are so far out of date?