Class: String

Inherits:

Object

• Object
• String

Defined in:

lib/core_ext/string.rb

Constant Summary

TABLE =

{
  '000000' => 'A',
  '000001' => 'B',
  '000010' => 'C',
  '000011' => 'D',
  '000100' => 'E',
  '000101' => 'F',
  '000110' => 'G',
  '000111' => 'H',
  '001000' => 'I',
  '001001' => 'J',
  '001010' => 'K',
  '001011' => 'L',
  '001100' => 'M',
  '001101' => 'N',
  '001110' => 'O',
  '001111' => 'P',
  '010000' => 'Q',
  '010001' => 'R',
  '010010' => 'S',
  '010011' => 'T',
  '010100' => 'U',
  '010101' => 'V',
  '010110' => 'W',
  '010111' => 'X',
  '011000' => 'Y',
  '011001' => 'Z',
  '011010' => 'a',
  '011011' => 'b',
  '011100' => 'c',
  '011101' => 'd',
  '011110' => 'e',
  '011111' => 'f',
  '100000' => 'g',
  '100001' => 'h',
  '100010' => 'i',
  '100011' => 'j',
  '100100' => 'k',
  '100101' => 'l',
  '100110' => 'm',
  '100111' => 'n',
  '101000' => 'o',
  '101001' => 'p',
  '101010' => 'q',
  '101011' => 'r',
  '101100' => 's',
  '101101' => 't',
  '101110' => 'u',
  '101111' => 'v',
  '110000' => 'w',
  '110001' => 'x',
  '110010' => 'y',
  '110011' => 'z',
  '110100' => '0',
  '110101' => '1',
  '110110' => '2',
  '110111' => '3',
  '111000' => '4',
  '111001' => '5',
  '111010' => '6',
  '111011' => '7',
  '111100' => '8',
  '111101' => '9',
  '111110' => '+',
  '111111' => '/'
}.freeze

Instance Method Summary

• #decode64 ⇒ Object
• #encode64 ⇒ Object

Instance Method Details

#decode64 ⇒ Object

# File 'lib/core_ext/string.rb', line 73

def decode64
  binary_text = delete('=').split('').map { |str| TABLE.invert.fetch(str) }.join
  binary_text
    .each_char
    .each_slice(8)
    .select { |str| str.count == 8 }
    .map { |str| str.join.to_i(2).chr }
    .join
end

#encode64 ⇒ Object

# File 'lib/core_ext/string.rb', line 69

def encode64
  encoded_text
end