Class: Zip::ZipExtraField::Generic

Inherits:
Object
  • Object
show all
Defined in:
lib/pik/contrib/zip/zip.rb

Overview

Meta class for extra fields

Direct Known Subclasses

IUnix, UniversalTime

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.name ⇒ Object 



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# File 'lib/pik/contrib/zip/zip.rb', line 1643

def self.name
  self.to_s.split("::")[-1]
end

.register_map ⇒ Object 



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# File 'lib/pik/contrib/zip/zip.rb', line 1637

def self.register_map
  if self.const_defined?(:HEADER_ID)
    ID_MAP[self.const_get(:HEADER_ID)] = self
  end
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/pik/contrib/zip/zip.rb', line 1659

def ==(other)
  self.class != other.class and return false
  each { |k, v|
    v != other[k] and return false
  }
  true
end

#initial_parse(binstr) ⇒ Object

return field [size, content] or false



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# File 'lib/pik/contrib/zip/zip.rb', line 1648

def initial_parse(binstr)
  if ! binstr
    # If nil, start with empty.
    return false
  elsif binstr[0,2] != self.class.const_get(:HEADER_ID)
    $stderr.puts "Warning: weired extra feild header ID. skip parsing"
    return false
  end
  [binstr[2,2].unpack("v")[0], binstr[4..-1]]
end

#to_c_dir_bin ⇒ Object 



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# File 'lib/pik/contrib/zip/zip.rb', line 1672

def to_c_dir_bin
  s = pack_for_c_dir
  self.class.const_get(:HEADER_ID) + [s.length].pack("v") + s
end

#to_local_bin ⇒ Object 



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# File 'lib/pik/contrib/zip/zip.rb', line 1667

def to_local_bin
  s = pack_for_local
  self.class.const_get(:HEADER_ID) + [s.length].pack("v") + s
end