ruby_parser version 3.9.0 has been released!
Published 2017-04-13 @ 17:10
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
becomes:
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
Changes:
3.9.0 / 2017-04-13
-
1 major enhancement:
- Added tentative ruby 2.4 support. Probably missing things.
-
13 minor enhancements:
- Added RubyParser.latest.
- Added RubyParser::Parser.version to make version range comparisons easier
- Changed superclasses of all parsers to RubyParser::Parser
- Cleaned up a lot of the version specific code to be more generic/flexible.
- Documented how to add new versions in README.
- Moved RubyParser from ruby_parser_extras.rb into ruby_parser.rb to fix bootstrap issues.
- Renamed RubyParserStuff#get_match_node to new_match. Aliased and deprecated.
- Renamed RubyParserStuff#logop to logical_op. Aliased and deprecated.
- Renamed RubyParserStuff#node_assign to new_assign. Aliased and deprecated.
- Renamed all parsers to RubyParser::V##.
- Revamped grammar preprocessing to make adding new versions easier.
- RubyParser.for_current_ruby falls back to latest if current not available.
- Subclasses of RubyParser::Parser register themselves into RubyParser::VERSIONS.
-
4 bug fixes:
- Fixed
&.
after newline. (presidentbeef) - Fixed bug setting line number for hash literals to line of opening brace.
- Fixed grammar preprocessing bug.
- Properly handle kDO with no-parens stabby lambda. (presidentbeef)
- Fixed
- home: https://github.com/seattlerb/ruby_parser
- bugs: https://github.com/seattlerb/ruby_parser/issues
- rdoc: http://docs.seattlerb.org/ruby_parser