lib/zip/extra_field/generic.rb
module Zip
class ExtraField::Generic
def self.register_map
if self.const_defined?(:HEADER_ID)
::Zip::ExtraField::ID_MAP[self.const_get(:HEADER_ID)] = self
end
end
def self.name
@name ||= self.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|
v != other[k] and return false
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