class PDF::Reader::LZW::StringTable

:nodoc:
stores de pairs code => string

def [](key)

if code less than 258 return fixed string 
def [](key)
  if key > 257 then super else key.chr end
end

def add(string) 

def add(string)
  store(@string_table_pos, string)
  @string_table_pos += 1
end

def initialize 

def initialize
  super
  @string_table_pos = 258 #initial code
end