rubyzip/lib/zip/extra_field/generic.rb

44 lines
1.0 KiB
Ruby

module Zip
class ExtraField::Generic
def self.register_map
if const_defined?(:HEADER_ID)
::Zip::ExtraField::ID_MAP[const_get(:HEADER_ID)] = self
end
end
def self.name
@name ||= to_s.split('::')[-1]
end
# return field [size, content] or false
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
def ==(other)
return false if self.class != other.class
each do |k, v|
return false if v != other[k]
end
true
end
def to_local_bin
s = pack_for_local
self.class.const_get(:HEADER_ID) + [s.bytesize].pack('v') << s
end
def to_c_dir_bin
s = pack_for_c_dir
self.class.const_get(:HEADER_ID) + [s.bytesize].pack('v') << s
end
end
end