Ripper.lex outputs for "Incompatibility with Ruby 2.2.0 · Issue #72 · zenspider/enhanced-ruby-mode"

2.1.4.output

[[[1, 0], :on_tstring_beg, "'"],
 [[1, 1], :on_tstring_content, "a"],
 [[1, 2], :on_tstring_end, "'"],
 [[1, 3], :on_period, "."],
 [[1, 4], :on_ident, "gsub"],
 [[1, 8], :on_lparen, "("],
 [[1, 9], :on_tstring_beg, "'"],
 [[1, 10], :on_tstring_content, "a"],
 [[1, 11], :on_tstring_end, "'"],
 [[1, 12], :on_comma, ","],
 [[1, 13], :on_sp, " "],
 [[1, 14], :on_tstring_beg, "'"],
 [[1, 15], :on_tstring_content, "b"],
 [[1, 16], :on_tstring_end, "'"],
 [[1, 17], :on_rparen, ")"],
 [[1, 18], :on_period, "\n"],
 [[2, 0], :on_ident, "  .gsub"],
 [[2, 7], :on_lparen, "("],
 [[2, 8], :on_tstring_beg, "'"],
 [[2, 9], :on_tstring_content, "b"],
 [[2, 10], :on_tstring_end, "'"],
 [[2, 11], :on_comma, ","],
 [[2, 12], :on_sp, " "],
 [[2, 13], :on_tstring_beg, "'"],
 [[2, 14], :on_tstring_content, "c"],
 [[2, 15], :on_tstring_end, "'"],
 [[2, 16], :on_rparen, ")"],
 [[2, 17], :on_sp, " "],
 [[2, 18], :on_comment, "# inline comment\n"],
 [[3, 0], :on_period, "  ."],
 [[3, 3], :on_ident, "gsub"],
 [[3, 7], :on_lparen, "("],
 [[3, 8], :on_tstring_beg, "'"],
 [[3, 9], :on_tstring_content, "c"],
 [[3, 10], :on_tstring_end, "'"],
 [[3, 11], :on_comma, ","],
 [[3, 12], :on_sp, " "],
 [[3, 13], :on_tstring_beg, "'"],
 [[3, 14], :on_tstring_content, "a"],
 [[3, 15], :on_tstring_end, "'"],
 [[3, 16], :on_rparen, ")"],
 [[3, 17], :on_nl, "\n"]]

2.2.0.output

[[[1, 0], :on_tstring_beg, "'"],
 [[1, 1], :on_tstring_content, "a"],
 [[1, 2], :on_tstring_end, "'"],
 [[1, 3], :on_period, "."],
 [[1, 4], :on_ident, "gsub"],
 [[1, 8], :on_lparen, "("],
 [[1, 9], :on_tstring_beg, "'"],
 [[1, 10], :on_tstring_content, "a"],
 [[1, 11], :on_tstring_end, "'"],
 [[1, 12], :on_comma, ","],
 [[1, 13], :on_sp, " "],
 [[1, 14], :on_tstring_beg, "'"],
 [[1, 15], :on_tstring_content, "b"],
 [[1, 16], :on_tstring_end, "'"],
 [[1, 17], :on_rparen, ")"],
 [[1, 18], :on_ignored_nl, "\n"],
 [[2, 0], :on_sp, "  "],
 [[2, 2], :on_period, "."],
 [[2, 3], :on_ident, "gsub"],
 [[2, 7], :on_lparen, "("],
 [[2, 8], :on_tstring_beg, "'"],
 [[2, 9], :on_tstring_content, "b"],
 [[2, 10], :on_tstring_end, "'"],
 [[2, 11], :on_comma, ","],
 [[2, 12], :on_sp, " "],
 [[2, 13], :on_tstring_beg, "'"],
 [[2, 14], :on_tstring_content, "c"],
 [[2, 15], :on_tstring_end, "'"],
 [[2, 16], :on_rparen, ")"],
 [[2, 17], :on_sp, " "],
 [[2, 18], :on_comment, "# inline comment\n"],
 [[1, 18], :on_ignored_nl, nil],
 [[3, 0], :on_sp, "  "],
 [[3, 2], :on_period, "."],
 [[3, 3], :on_ident, "gsub"],
 [[3, 7], :on_lparen, "("],
 [[3, 8], :on_tstring_beg, "'"],
 [[3, 9], :on_tstring_content, "c"],
 [[3, 10], :on_tstring_end, "'"],
 [[3, 11], :on_comma, ","],
 [[3, 12], :on_sp, " "],
 [[3, 13], :on_tstring_beg, "'"],
 [[3, 14], :on_tstring_content, "a"],
 [[3, 15], :on_tstring_end, "'"],
 [[3, 16], :on_rparen, ")"],
 [[3, 17], :on_nl, "\n"]]

print.rb

require "ripper"
require "pp"

s = <<HERE
'a'.gsub('a', 'b')
  .gsub('b', 'c') # inline comment
  .gsub('c', 'a')
HERE

pp Ripper::Lexer.parse(s)