GZ/nwyj/.svn/pristine/0e/0e63ec89c8f8613f5bcc56d69a487a301eceb2a6.svn-base

if (!dojo._hasResource["dojox.encoding.easy64"]) { // _hasResource checks added
													// by build. Do not use
													// _hasResource directly in
													// your code.
	dojo._hasResource["dojox.encoding.easy64"] = true;
	dojo.provide("dojox.encoding.easy64");

	(function() {
		var c = function(input, length, result) {
			for (var i = 0; i < length; i += 3) {
				result.push(String.fromCharCode((input[i] >>> 2) + 33), String
								.fromCharCode(((input[i] & 3) << 4)
										+ (input[i + 1] >>> 4) + 33), String
								.fromCharCode(((input[i + 1] & 15) << 2)
										+ (input[i + 2] >>> 6) + 33), String
								.fromCharCode((input[i + 2] & 63) + 33));
			}
		};

		dojox.encoding.easy64.encode = function(input) {
			// summary: encodes input data in easy64 string
			// input: Array: an array of numbers (0-255) to encode
			var result = [], reminder = input.length % 3, length = input.length
					- reminder;
			c(input, length, result);
			if (reminder) {
				var t = input.slice(length);
				while (t.length < 3) {
					t.push(0);
				}
				c(t, 3, result);
				for (var i = 3; i > reminder; result.pop(), --i);
			}
			return result.join(""); // String
		};

		dojox.encoding.easy64.decode = function(input) {
			// summary: decodes the input string back to array of numbers
			// input: String: the input string to decode
			var n = input.length, r = [], b = [0, 0, 0, 0], i, j, d;
			for (i = 0; i < n; i += 4) {
				for (j = 0; j < 4; ++j) {
					b[j] = input.charCodeAt(i + j) - 33;
				}
				d = n - i;
				for (j = d; j < 4; b[++j] = 0);
				r.push((b[0] << 2) + (b[1] >>> 4), ((b[1] & 15) << 4)
								+ (b[2] >>> 2), ((b[2] & 3) << 6) + b[3]);
				for (j = d; j < 4; ++j, r.pop());
			}
			return r;
		};
	})();

}