lib/anybase.rb in anybase-0.0.2 vs lib/anybase.rb in anybase-0.0.3

@@ -26,17 +26,20 @@
       num += (chars.size ** (val.size - i - 1)) * @char_map[val[i]]
     }
     num
   end
   
-  def to_native(val)
+  def to_native(val, options = nil)
     str = ''
     until val.zero?
       digit = val % chars.size
       val /= chars.size
       str[0, 0] = @num_map[digit]
     end
-    str
+    if options && options[:zero_pad]
+      str[0, 0] = @num_map[0] * (options[:zero_pad] - str.size)
+    end
+    str == '' ? @num_map[0].dup : str
   end
   
   Hex          = Anybase.new('0123456789abcdef', :ignore_case => true)
   Base64       = Anybase.new('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/')
   Base64ForURL = Anybase.new('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_')
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