Method: String#unhexlify

Defined in:
lib/amp/dependencies/amp_support/ruby_amp_support.rb,
lib/amp/dependencies/amp_support/ruby_amp_support.rb,
ext/amp/support/support.c

#unhexlify ⇒ Object

Converts a string of hexademical into its binary representation. Method on strings. When the data in the string is hexademical (such as “DEADBEEF”), this method decodes the hex and converts every 2 bytes into its 1-byte binary representation.

Examples:

“414243”.unhexlify == “ABC”

Parameters:

  • self (in) —

    the string object to unhexlify

Returns:

  • A decoded, binary string



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# File 'lib/amp/dependencies/amp_support/ruby_amp_support.rb', line 79

def unhexlify
  str = "\000" * (size/2)
  c = 0
  (0..size-2).step(2) do |i|
    hex = self[i,2].to_i(16)
    str[c] = hex
    c += 1
  end
  str
end