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



107
108
109
 
# File 'lib/bitcoin.rb', line 107

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

#bti ⇒ Object

binary convert to integer



117
118
119
 
# File 'lib/bitcoin.rb', line 117

def bti
  bth.to_i(16)
end

#htb ⇒ Object

hex string convert to binary



112
113
114
 
# File 'lib/bitcoin.rb', line 112

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

#opcode ⇒ Object

get opcode



127
128
129
130
131
132
133
134
135
136
 
# File 'lib/bitcoin.rb', line 127

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

#opcode? ⇒ Boolean

Returns:

  • (Boolean) 


138
139
140
 
# File 'lib/bitcoin.rb', line 138

def opcode?
  !pushdata?
end

#push_opcode? ⇒ Boolean

Returns:

  • (Boolean) 


142
143
144
 
# File 'lib/bitcoin.rb', line 142

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

#pushdata? ⇒ Boolean

whether data push only?

Returns:

  • (Boolean) 


147
148
149
 
# File 'lib/bitcoin.rb', line 147

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

#pushed_data ⇒ Object 



151
152
153
154
155
156
157
158
159
160
161
162
163
 
# File 'lib/bitcoin.rb', line 151

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



122
123
124
 
# File 'lib/bitcoin.rb', line 122

def rhex
  htb.reverse.bth
end

#valid_hex? ⇒ Boolean

whether value is hex or not hex

Returns:

  • (Boolean) —

    return true if data is hex



167
168
169
 
# File 'lib/bitcoin.rb', line 167

def valid_hex?
  !self[/\H/]
end