90 lines
2.1 KiB
Ruby
90 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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require 'rubygems'
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module Zip
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class DOSTime < Time # :nodoc:all
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# MS-DOS File Date and Time format as used in Interrupt 21H Function 57H:
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# Register CX, the Time:
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# Bits 0-4 2 second increments (0-29)
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# Bits 5-10 minutes (0-59)
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# bits 11-15 hours (0-24)
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# Register DX, the Date:
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# Bits 0-4 day (1-31)
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# bits 5-8 month (1-12)
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# bits 9-15 year (four digit year minus 1980)
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def to_binary_dos_time
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(sec / 2) +
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(min << 5) +
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(hour << 11)
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end
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def to_binary_dos_date
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day +
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(month << 5) +
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((year - 1980) << 9)
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end
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def dos_equals(other)
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warn 'Zip::DOSTime#dos_equals is deprecated. Use `==` instead.'
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self == other
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end
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# Dos time is only stored with two seconds accuracy.
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def <=>(other)
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return unless other.kind_of?(Time)
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(to_i / 2) <=> (other.to_i / 2)
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end
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# Create a DOSTime instance from a vanilla Time instance.
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def self.from_time(time)
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local(time.year, time.month, time.day, time.hour, time.min, time.sec)
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end
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def self.parse_binary_dos_format(bin_dos_date, bin_dos_time)
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second = 2 * (0b11111 & bin_dos_time)
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minute = (0b11111100000 & bin_dos_time) >> 5
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hour = (0b1111100000000000 & bin_dos_time) >> 11
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day = (0b11111 & bin_dos_date)
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month = (0b111100000 & bin_dos_date) >> 5
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year = ((0b1111111000000000 & bin_dos_date) >> 9) + 1980
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local(year, month, day, hour, minute, second)
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end
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if defined? JRUBY_VERSION && Gem::Version.new(JRUBY_VERSION) < '9.2.18.0'
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module JRubyCMP # :nodoc:
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def ==(other)
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(self <=> other).zero?
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end
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def <(other)
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(self <=> other).negative?
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end
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def <=(other)
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(self <=> other) <= 0
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end
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def >(other)
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(self <=> other).positive?
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end
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def >=(other)
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(self <=> other) >= 0
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end
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end
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include JRubyCMP
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end
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end
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end
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# Copyright (C) 2002, 2003 Thomas Sondergaard
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# rubyzip is free software; you can redistribute it and/or
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# modify it under the terms of the ruby license.
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