class HexaPDF::Font::TrueType::Table::Directory

See: developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6.html<br><br>information for loading all other tables.
The main table of an sfnt-housed font file, providing the table directory which contains

def entry(tag)

Returns the directory entry for the given tag or +nil+ if no such table exists. 
def entry(tag)
  @tables[tag]
end

def load_from_io #:nodoc:

:nodoc: 
def load_from_io #:nodoc:
  with_io_pos(0) do
    @tag, num_tables = read_formatted(12, "a4n") # ignore 3 fields
    @tables = {}
    num_tables.times do
      entry = Entry.new(*read_formatted(16, "a4NNN"))
      @tables[entry.tag] = entry
    end
  end
end