STD.pm

STD.pm is a huge file describing the formal Perl 6 grammar. The grammar of Perl 6 is written in Perl 6 itself. The repository of https://github.com/perl6/std contains the grammar and the viv utility that translates the grammar into the Perl 5 code. We have mentioned the STD.pm grammar because it may be interesting for those readers who want to dig deeper into the internal structure of the grammar. In the rest of this book, we will explain the grammar based on examples of code in Perl 6.