🕷 software releases

by ryan davis



sitemap

ruby_parser version 2.3.0 has been released!

Published 2011-09-06 @ 16:25

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)
  if arg1 == 0 then
    return 1
  end
  return 0
end

becomes:

s(:defn, :conditional1,
 s(:args, :arg1),
 s(:scope,
  s(:block,
   s(:if,
    s(:call, s(:lvar, :arg1), :==, s(:arglist, s(:lit, 0))),
    s(:return, s(:lit, 1)),
    nil),
   s(:return, s(:lit, 0)))))

Changes:

2.3.0 / 2011-09-06

  • 2 minor enhancements:

    • Add -g flag to parser compile if DEBUG
    • Lexer now embeds line number in yacc_value for keywords, helping fix up line numbers
  • 3 bug fixes:

    • Fix method line numbers when no args and no parens (quix)
    • Fixed line numbers on return/break/next w/ result expr. (pjnz)
    • Fixed some lexing state in order to parse: ‘f (1), 2’ as ‘f(1, 2)’. (invernizzi)
  • https://github.com/seattlerb/ruby_parser