riboseinc/ruby-vobject

# expand error reporting of Rsec
class Rsec::ParseContext
  def report_error(msg, source)
    if pos <= @last_fail_pos
      line = line @last_fail_pos
      col = col @last_fail_pos
      line_text = line_text @last_fail_pos
      expect_tokens = Rsec::Fail.get_tokens @last_fail_mask
      expects = ", expect token [ #{expect_tokens.join ' | '} ]"
    else
      line = line pos
      col = col pos
      line_text = line_text pos
      expects = nil
    end
    msg = "#{msg}\nin #{source}:#{line} at #{col}#{expects}"
    Rsec::SyntaxError.new msg, line_text, line, col
  end
end