The documentation of Perl's Marpa parser contains the following section about tainted data: Marpa::R2 exists to allow its input to alter execution in flexible and powerful ways. Marpa should not...

I'm implementing a new DSL in Marpa and (coming from Regexp::Grammars) I'm more than satisfied. My language supports a bunch of unary and binary operators, objects with C-style identifiers and meth...

I know Perl's "Marpa" Earley parser has very good error reporting. But I can't find in its documentation or via Googling whether it has error recovery. For instance, most C/C++ compilers have err...

I am using latest release of marpa::r2 (Marpa-R2-2.065_002) and it seems to eat all memory very fast. I wrote the bellow script to test it. use strict; use warnings FATAL => 'all'; use Marpa::R...

Related to my earlier question about case-insensitive keyword matching using regular expressions. Is it possible to match strings case-insensitively in Marpa? If so, how? Suppose I have the gramm...

I have a rather large Marpa grammar (for parsing XPath), and I ran into a problem with tokenization. I created a minimal breaking example below: use strict; use warnings; use Marpa::R2; my $gramm...

Can the existing Marpa parser be used to improve parsing of Perl 5 (e.g., replace all or chunks of existing Perl interpreter's parser)? I am asking on a theoretical level, e.g. ignoring practical ...