class PDF::Reader::Buffer

def prepare_literal_token


problem.
processing to fix things like escaped new lines, but that's someone else's
The entire literal string will be returned as a single token. It will need further

string.
start of a new token in regular mode are left untouched when inside a literal
we find the closing ) delimiter. Lots of bytes that would otherwise indicate the
if we're currently inside a literal string we more or less just read bytes until 
def prepare_literal_token
  str = "".dup
  count = 1
  while count > 0
    byte = @io.getbyte
    if byte.nil?
      count = 0 # unbalanced params
    elsif byte == 0x5C
      str << byte << @io.getbyte
    elsif byte == 0x28 # "("
      str << "("
      count += 1
    elsif byte == 0x29 # ")"
      count -= 1
      str << ")" unless count == 0
    else
      str << byte unless count == 0
    end
  end
  @tokens << str if str.size > 0
  @tokens << ")"
end