Class: String

Inherits:
Object show all
Defined in:
lib/bitcoin.rb

Instance Method Summary collapse

Instance Method Details

#bth ⇒ Object

binary convert to hex string



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# File 'lib/bitcoin.rb', line 103

def bth
  unpack('H*').first
end

#htb ⇒ Object

hex string convert to binary



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# File 'lib/bitcoin.rb', line 108

def htb
  [self].pack('H*')
end

#opcode ⇒ Object

get opcode



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# File 'lib/bitcoin.rb', line 118

def opcode
  case encoding
  when Encoding::ASCII_8BIT
    each_byte.next
  when Encoding::US_ASCII
    ord
  else
    to_i
  end
end

#opcode? ⇒ Boolean 



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# File 'lib/bitcoin.rb', line 129

def opcode?
  !pushdata?
end

#push_opcode? ⇒ Boolean 



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# File 'lib/bitcoin.rb', line 133

def push_opcode?
  [Bitcoin::Opcodes::OP_PUSHDATA1, Bitcoin::Opcodes::OP_PUSHDATA2, Bitcoin::Opcodes::OP_PUSHDATA4].include?(opcode)
end

#pushdata? ⇒ Boolean

whether data push only?



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# File 'lib/bitcoin.rb', line 138

def pushdata?
  opcode <= Bitcoin::Opcodes::OP_PUSHDATA4 && opcode > Bitcoin::Opcodes::OP_0
end

#pushed_data ⇒ Object 



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# File 'lib/bitcoin.rb', line 142

def pushed_data
  return nil unless pushdata?
  offset = 1
  case opcode
  when Bitcoin::Opcodes::OP_PUSHDATA1
    offset += 1
  when Bitcoin::Opcodes::OP_PUSHDATA2
    offset += 2
  when Bitcoin::Opcodes::OP_PUSHDATA4
    offset += 4
  end
  self[offset..-1]
end

#rhex ⇒ Object

reverse hex string endian



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# File 'lib/bitcoin.rb', line 113

def rhex
  htb.reverse.bth
end