# File lib/fastri/ri_index.rb, line 259
  def load(anIO)
    header = anIO.gets    
    raise "Invalid format." unless header.chomp == MAGIC
    anIO.gets  # discard "Sources:"
    paths     = []
    gem_names = []
    until (line = anIO.gets).index("=" * 80) == 0
      gemname, path = line.strip.split(/\s+/)
      paths     << path
      gem_names << gemname
    end
    anIO.gets # discard "Namespaces:"
    namespace_array = []
    until (line = anIO.gets).index("=" * 80) == 0
      namespace_array << line
    end
    anIO.gets # discard "Methods:"
    method_array = []
    until (line = anIO.gets).index("=" * 80) == 0
      method_array << line
    end
    @paths           = paths
    @gem_names       = gem_names
    @namespace_array = namespace_array
    @method_array    = method_array
  end