In their 2014 presentation [1] they say that their compiler is implemented in C++ using flex/bison (that's a lexer/parser generator combo) so at least in this c

In their 2014 presentation [1] they say that their compiler is implemented in C++ using flex/bison (that's a lexer/parser generator combo) so at least in this case they're aware of the standard tools. [1] http://equelle.org/presentations/ http://equelle.org/presentations/