split_name

# File lib/rubygems/package/tar_writer.rb, line 212
  def split_name(name) # :nodoc:
    raise Gem::Package::TooLongFileName if name.size > 256

    if name.size <= 100 then
      prefix = ""
    else
      parts = name.split(/\//)
      newname = parts.pop
      nxt = ""

      loop do
        nxt = parts.pop
        break if newname.size + 1 + nxt.size > 100
        newname = nxt + "/" + newname
      end

      prefix = (parts + [nxt]).join "/"
      name = newname

      if name.size > 100 or prefix.size > 155 then
        raise Gem::Package::TooLongFileName
      end
    end

    return name, prefix
  end