ruby_parser version 3.19.0 has been released!
* home: <GitHub - seattlerb/ruby_parser: ruby_parser is a ruby parser written in pure ruby. It outputs s-expressions which can be manipulated and converted back to ruby via the ruby2ruby gem.>
* bugs: <Issues · seattlerb/ruby_parser · GitHub>
* rdoc: <ruby_parser-3.18.1 Documentation>
ruby_parser (RP) is a ruby parser written in pure ruby (utilizing
racc--which does by default use a C extension). It outputs
s-expressions which can be manipulated and converted back to ruby via
the ruby2ruby gem.
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
* 2.6 parser is at 99.9972% accuracy, 4.191 sigma
* 3.0 parser has a 100% parse rate.
* Tested against 2,672,412 unique ruby files across 167k gems.
* As do all the others now, basically.
Changes:
### 3.19.0 / 2022-03-29
* 1 major enhancement:
* Added tentative 3.1 support.
* 7 minor enhancements:
* 3.1: bare RHS assoc: { y: } => s(:hash, s(:lit, :y), nil)
* 3.1: calls w/ unnamed block args (bare &)
* 3.1: endless defn/defs w/ paren-less calls (aka commands)
* 3.1: pattern capture to nonlocal vars, eg: ^@a, ^$b, ^@@c
* 3.1: pattern: ^(expr) => expr
* Improved steps for adding new versions.
* Improved steps for running gauntlets.
* 2 bug fixes:
* Bumped 2.6+ cached versions for rake compare.
* Skip test_regexp_esc_C_slash on ruby 3.1.0 because of MRI bug.