Class: MppReader::Cfbf::Directory

Inherits:
Object
  • Object
show all
Defined in:
lib/mpp_reader/cfbf/directory.rb

Overview

Parses the directory sector chain and links each storage’s red-black sibling tree into a flat children hash (keyed by upcased name).

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dir_bytes) ⇒ Directory

Returns a new instance of Directory.



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# File 'lib/mpp_reader/cfbf/directory.rb', line 38

def initialize(dir_bytes)
  @entries = []
  (dir_bytes.bytesize / 128).times do |i|
    record = dir_bytes.byteslice(i * 128, 128)
    @entries << (record.getbyte(66).to_i.zero? ? nil : Entry.new(record))
  end
  @root = @entries[0]
  unless @root && @root.type == Entry::TYPE_ROOT
    raise CorruptFileError, "compound file has no root directory entry"
  end
  link_all_children
end

Instance Attribute Details

#root ⇒ Object (readonly)

Returns the value of attribute root.



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# File 'lib/mpp_reader/cfbf/directory.rb', line 36

def root
  @root
end