Class: Bech32::SegwitAddr

Inherits:
Object
  • Object
show all
Defined in:
lib/bech32/segwit_addr.rb

Constant Summary collapse

HRP_MAINNET = 
'bc'
HRP_TESTNET = 
'tb'
HRP_REGTEST = 
'bcrt'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(addr = nil) ⇒ SegwitAddr

Returns a new instance of SegwitAddr.



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# File 'lib/bech32/segwit_addr.rb', line 13

def initialize(addr = nil)
  @hrp = HRP_MAINNET
  parse_addr(addr) if addr
end

Instance Attribute Details

#hrp ⇒ Object

human-readable part



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# File 'lib/bech32/segwit_addr.rb', line 9

def hrp
  @hrp
end

#prog ⇒ Object

witness program



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# File 'lib/bech32/segwit_addr.rb', line 11

def prog
  @prog
end

#ver ⇒ Object

witness version



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# File 'lib/bech32/segwit_addr.rb', line 10

def ver
  @ver
end

Instance Method Details

#addr ⇒ Object

Returns segwit address string which generated from hrp, witness version and witness program.



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# File 'lib/bech32/segwit_addr.rb', line 32

def addr
  spec = (ver == 0 ? Bech32::Encoding::BECH32 : Bech32::Encoding::BECH32M)
  Bech32.encode(hrp, [ver] + Bech32.convert_bits(prog, 8, 5), spec)
end

#script_pubkey=(script_pubkey) ⇒ Object

parse script pubkey into witness version and witness program



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# File 'lib/bech32/segwit_addr.rb', line 25

def script_pubkey=(script_pubkey)
  values = [script_pubkey].pack('H*').unpack("C*")
  @ver = values[0] == 0 ? values[0] : values[0] - 0x50
  @prog = values[2..-1]
end

#to_script_pubkey ⇒ Object

Returns segwit script pubkey which generated from witness version and witness program.



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# File 'lib/bech32/segwit_addr.rb', line 19

def to_script_pubkey
  v = ver == 0 ? ver : ver + 0x50
  ([v, prog.length] + prog).pack('C*').unpack("H*").first
end