module Base32
Constants
- HEX
Public Instance Methods
decode32hex(str)
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# File lib/dnsruby/resource/NSEC3.rb, line 33 def decode32hex(str) str.gsub(/\G\s*(#{HEX}{8}|#{HEX}{7}=|#{HEX}{5}={3}|#{HEX}{4}={4}|#{HEX}{2}={6}|(\S))/imno) do raise 'invalid base32' if $2 s = $1 s.tr('=', '0').to_i(32).divmod(256).pack('NC')[0, (s.count('^=') * 5).div(8)] end end
encode32hex(str)
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# File lib/dnsruby/resource/NSEC3.rb, line 19 def encode32hex(str) str.gsub(/\G(.{5})|(.{1,4}\z)/mn) do full = $1; frag = $2 n, c = (full || frag.ljust(5, "\0")).unpack('NC') full = ((n << 8) | c).to_s(32).rjust(8, '0') if frag full[0, (frag.length * 8 + 4).div(5)].ljust(8, '=').upcase else full.upcase end end end