ruby 1.9.2 character encoding helper

string_patch.rb

class String
  def hexbytes
    self.bytes.to_a.map {|c| c.to_s(16).upcase}.join
  end

  def hexchars
    self.chars.to_a.map {|c| c.hexbytes}
  end
  
  def unicodechars
    self.chars.to_a.map {|c| c.hexbytes}  
  end
  
  def debug
    puts "%-8s: %s" % ["encoding", encoding.name]
    puts "%-8s: %-4s" % ["chars", to_series(chars.to_a)]
    puts "%-8s: %-4s" % ["hex", to_series(hexchars)]
  end
  
  def to_series(array)
    array.map {|c| c.rjust(4)}
  end
end