ruby_parser version 3.7.0 has been released!
Published 2015-05-28 @ 15:04
ruby_parser (RP) is a ruby parser written in pure ruby (utilizing racc–which does by default use a C extension). RP’s output is the same as ParseTree’s output: s-expressions using ruby’s arrays and base types.
As an example:
def conditional1 arg1 return 1 if arg1 == 0 return 0 end
s(:defn, :conditional1, s(:args, :arg1), s(:if, s(:call, s(:lvar, :arg1), :==, s(:lit, 0)), s(:return, s(:lit, 1)), nil), s(:return, s(:lit, 0)))
Tested against 801,039 files from the latest of all rubygems (as of 2013-05):
- 1.8 parser is at 99.9739% accuracy, 3.651 sigma
- 1.9 parser is at 99.9940% accuracy, 4.013 sigma
- 2.0 parser is at 99.9939% accuracy, 4.008 sigma
3.7.0 / 2015-05-28
2 major enhancements:
- Added preliminary support for ruby 2.2 syntax.
- Now writing all 2.x parsers from one source, generating racc files.
1 minor enhancement:
- Added RubyLexer#process_label and hooked it up to “x”: and ‘x’: productions.
4 bug fixes:
- Fixed handling of block_args to be consistent across all parse versions.
- Fixed lexing of label assoc args w/ newlines in between k/v. (jeremyf)
- Fixed lexing of x?’‘:y for ruby22 (not a label). (presidentbeef)
- clear and restore cmdarg stack around def args and body.
- home: https://github.com/seattlerb/ruby_parser
- bugs: https://github.com/seattlerb/ruby_parser/issues
- rdoc: http://docs.seattlerb.org/ruby_parser