ruby_parser version 3.4.0 has been released! * home: <https://github.com/seattlerb/ruby_parser> * bugs: <https://github.com/seattlerb/ruby_parser/issues> * rdoc: <http://docs.seattlerb.org/ruby_parser> 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: ### 3.4.0 / 2014-02-04 * 1 major enhancement: * Replaced hand-written/optimized f'd-up lexer with an oedipus_lex generated lexer. This makes it roughly 40-50% faster. * 30 minor enhancements: * 2.0: Added support for a.b c() do d end.e do |f| g end * 2.0: Added support for a.b c() do d end.e f do |g| h end * Added -s flag to ruby_parse_extract_error to output timings. * Added RubyLexer #command_state and #last_state to deal with oedipus_lex differences. * Added String#lineno and #lineno= because I'm a bad bad person. * Added a bunch of RubyLexer scanning methods: beginning_of_line?, check, scan, etc. * Added a bunch of process_* methods extracted from old yylex. process_amper, etc. * Added lib/.document to save my laptop's battery from pain and suffering * Adjust lineno when we lex a bunch of blank lines. * Attach lineno to tIDENTIFIER values (strings, ugh) * Cleaned up and re-ordered node_assign to be faster (ordered by actual occurrance). * Extend RubyParserStuff#gettable to set the lineno if it comes in with the id. * Extended RubyParserStuff#new_case to take line number. * Finally dropped RPStringScanner's BS #current_line. * Finally dropped RPStringScanner's BS line number calculation (lineno). * Implemented Sexp#add_all since we now have a test case for it. * Removed :call case of node_assign. I don't think it is possible. * Removed RubyLexer #extra_lines_added. No longer used. Complex heredoc lineno's possible screwed up. * Removed RubyLexer#parse_number. Handled by oedipus_lex. * Removed RubyLexer#yacc_value now that next_token returns pairs. * Removed RubyLexer's @src. Now taken care of by oedipus_lex. * Removed RubyParser#advance. RubyParser#next_token takes care of everything now. * Removed RubyParserExtras#arg_add. (presidentbeef! YAY!) * Removed lib/gauntlet_rubyparser.rb. I just don't use it anymore. Too slow. * RubyLexer#is_label_possible? doesn't need an arg * RubyLexer#process_token is now a normal oedipal lexer method. * RubyParser#next_token now expects RubyLexer#next_token to return a pair (type, val). * TRYING a new scheme to figure out encodings... but I'm about to throw in the towel. I hate this stuff so much. * Turned off oedipus_lex's automatic line counting. (pushing to oedipus_lex soon). * Updated to oedipus_lex 2.1+. * 7 bug fixes: * 1.8: Properly parse `a (:b, :c, :d => :e)`. (presidentbeef) * Fixed lexing symbol!= vs symbol!. Please use your spacebar. Think of the children. * Fixed line for dstr spanning multiple lines via backslash. (presidentbeef) * Fixed line numbers for odd cases with trailing whitespace. (presidentbeef) * Fixed line numbers on ambiguous calls w/ gvar/ivar args. (presidentbeef) * Max out unicode hex values to 2-4 or 2-6 chars or pack will overflow and puke. * Removed ESC_RE from RubyLexer. Must have slipped through.
on 2014-02-05 04:20