ruby-ll is a high performance LL(1) table based parser generator for Ruby. The
parser driver is written in C/Java to ensure good runtime performance, the
compiler is written entirely in Ruby.

ruby-ll was written to serve as a fast and easy to use alternative to Racc for
the various parsers used in Oga. However, ruby-ll isn't limited to just Oga, you
can use it to write a parser for any language that can be represented using an
LL(1) grammar.

ruby-ll is self-hosting, this allows one to use ruby-ll to modify its own
parser. Self-hosting was achieved by bootstrapping the parser using a Racc
parser that outputs the same AST as the ruby-ll parser. The Racc parser remains
in the repository for historical purposes and in case it's ever needed again, it
can be found in bootstrap/parser.y.

• Pavel Skrylev

• gem-ruby-ll
• gem-ruby-ll-debuginfo
• gem-ruby-ll-devel
• gem-ruby-ll-doc
• ruby-ll