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| function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
|
| function _toArray(arr) { return Array.isArray(arr) ? arr : Array.from(arr); }
|
| function con(n) {
| return 0x80 | n & 0x3f;
| }
|
| export function encode(str) {
| var arr = str.split("").map(function (x) {
| return x.charCodeAt(0);
| });
| return _encode(arr);
| }
|
| function _encode(arr) {
| if (arr.length === 0) {
| return [];
| }
|
| var _arr = _toArray(arr),
| n = _arr[0],
| ns = _arr.slice(1);
|
| if (n < 0) {
| throw new Error("utf8");
| }
|
| if (n < 0x80) {
| return [n].concat(_toConsumableArray(_encode(ns)));
| }
|
| if (n < 0x800) {
| return [0xc0 | n >>> 6, con(n)].concat(_toConsumableArray(_encode(ns)));
| }
|
| if (n < 0x10000) {
| return [0xe0 | n >>> 12, con(n >>> 6), con(n)].concat(_toConsumableArray(_encode(ns)));
| }
|
| if (n < 0x110000) {
| return [0xf0 | n >>> 18, con(n >>> 12), con(n >>> 6), con(n)].concat(_toConsumableArray(_encode(ns)));
| }
|
| throw new Error("utf8");
| }
|
|
