I just wrote a small program to parse and generate a parser that parses Marpa. Marpa itself doesn't include such a program for good reasons I assume. Or if it exists I couldn't find it.
But as this is a small program it only generates a part of the parser. It is also not bootstrapping.
The repository contains a small tokenizer written in Perl. It tokenizes a line of text and passes this on to the token recognizer, which in turn calls the grammer.
The grammer calls methods in
My_Actions to build a tree. This tree is the
rules part of the argument to
Marpa::Grammer->new. This argument is then
Data::Dumper to create a Perl readable version.