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- if (!dojo._hasResource["dojox.encoding.ascii85"]) { // _hasResource checks added
- // by build. Do not use
- // _hasResource directly in
- // your code.
- dojo._hasResource["dojox.encoding.ascii85"] = true;
- dojo.provide("dojox.encoding.ascii85");
- (function() {
- var c = function(input, length, result) {
- var i, j, n, b = [0, 0, 0, 0, 0];
- for (i = 0; i < length; i += 4) {
- n = ((input[i] * 256 + input[i + 1]) * 256 + input[i + 2])
- * 256 + input[i + 3];
- if (!n) {
- result.push("z");
- } else {
- for (j = 0; j < 5; b[j++] = n % 85 + 33, n = Math.floor(n
- / 85));
- }
- result.push(String.fromCharCode(b[4], b[3], b[2], b[1], b[0]));
- }
- };
- dojox.encoding.ascii85.encode = function(input) {
- // summary: encodes input data in ascii85 string
- // input: Array: an array of numbers (0-255) to encode
- var result = [], reminder = input.length % 4, length = input.length
- - reminder;
- c(input, length, result);
- if (reminder) {
- var t = input.slice(length);
- while (t.length < 4) {
- t.push(0);
- }
- c(t, 4, result);
- var x = result.pop();
- if (x == "z") {
- x = "!!!!!";
- }
- result.push(x.substr(0, reminder + 1));
- }
- return result.join(""); // String
- };
- dojox.encoding.ascii85.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, 0], i, j, t, x, y, d;
- for (i = 0; i < n; ++i) {
- if (input.charAt(i) == "z") {
- r.push(0, 0, 0, 0);
- continue;
- }
- for (j = 0; j < 5; ++j) {
- b[j] = input.charCodeAt(i + j) - 33;
- }
- d = n - i;
- if (d < 5) {
- for (j = d; j < 4; b[++j] = 0);
- b[d] = 85;
- }
- t = (((b[0] * 85 + b[1]) * 85 + b[2]) * 85 + b[3]) * 85 + b[4];
- x = t & 255;
- t >>>= 8;
- y = t & 255;
- t >>>= 8;
- r.push(t >>> 8, t & 255, y, x);
- for (j = d; j < 5; ++j, r.pop());
- i += 4;
- }
- return r;
- };
- })();
- }
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