RedBase64 base64 encoder/decoder
see http://en.wikipedia.org/wiki/Base64
see also: RedLZW
*encode(string)
*decode(string)
<>map
//--
a= "Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.";
b= RedBase64.encode(a);
RedBase64.decode(b)
RedBase64.encode(a.keep(a.size-0))
RedBase64.encode(a.keep(a.size-1))
RedBase64.encode(a.keep(a.size-2))
RedBase64.encode(a.keep(a.size-3))
RedBase64.encode("leasure.")
RedBase64.encode("easure.")
RedBase64.encode("asure.")
RedBase64.encode("sure.")