zhywpt-sp/utils/util/encoder.js

'use strict';
(function(r) {
	function x() {}

	function y() {}
	var z = String.fromCharCode,
		v = {}.toString,
		A = v.call(r.SharedArrayBuffer),
		B = v(),
		q = r.Uint8Array,
		t = q || Array,
		w = q ? ArrayBuffer : t,
		C = w.isView || function(g) {
			return g && "length" in g
		},
		D = v.call(w.prototype);
	w = y.prototype;
	var E = r.TextEncoder,
		a = new(q ? Uint16Array : t)(32);
	x.prototype.decode = function(g) {
		if (!C(g)) {
			var l = v.call(g);
			if (l !== D && l !== A && l !== B) throw TypeError(
				"Failed to execute 'decode' on 'TextDecoder': The provided value is not of type '(ArrayBuffer or ArrayBufferView)'"
				);
			g = q ? new t(g) : g || []
		}
		for (var f = l = "", b = 0, c = g.length | 0, u = c - 32 | 0, e, d, h = 0, p = 0, m, k = 0, n = -1; b <
			c;) {
			for (e = b <= u ? 32 : c - b | 0; k < e; b = b + 1 | 0, k = k + 1 | 0) {
				d = g[b] & 255;
				switch (d >> 4) {
					case 15:
						m = g[b = b + 1 | 0] & 255;
						if (2 !== m >> 6 || 247 < d) {
							b = b - 1 | 0;
							break
						}
						h = (d & 7) << 6 | m & 63;
						p = 5;
						d = 256;
					case 14:
						m = g[b = b + 1 | 0] & 255, h <<= 6, h |= (d & 15) << 6 | m & 63, p = 2 === m >> 6 ? p +
							4 | 0 : 24, d = d + 256 & 768;
					case 13:
					case 12:
						m = g[b = b + 1 | 0] & 255, h <<= 6, h |= (d & 31) << 6 | m & 63, p = p + 7 | 0, b <
							c && 2 === m >> 6 && h >> p && 1114112 > h ? (d = h, h = h - 65536 | 0, 0 <= h && (
								n = (h >> 10) + 55296 | 0, d = (h & 1023) + 56320 | 0, 31 > k ? (a[k] = n,
									k = k + 1 | 0, n = -1) :
								(m = n, n = d, d = m))) : (d >>= 8, b = b - d - 1 | 0, d = 65533), h = p = 0,
							e = b <= u ? 32 : c - b | 0;
					default:
						a[k] = d;
						continue;
					case 11:
					case 10:
					case 9:
					case 8:
				}
				a[k] = 65533
			}
			f += z(a[0], a[1], a[2], a[3], a[4], a[5], a[6], a[7], a[8], a[9], a[10], a[11], a[12], a[13], a[
				14], a[15], a[16], a[17], a[18], a[19], a[20], a[21], a[22], a[23], a[24], a[25], a[26], a[
					27], a[28], a[29], a[30], a[31]);
			32 > k && (f = f.slice(0, k - 32 | 0));
			if (b < c) {
				if (a[0] = n, k = ~n >>> 31, n = -1, f.length < l.length) continue
			} else - 1 !== n && (f += z(n));
			l += f;
			f = ""
		}
		return l
	};
	w.encode = function(g) {
		g = void 0 === g ? "" : "" + g;
		var l = g.length |
			0,
			f = new t((l << 1) + 8 | 0),
			b, c = 0,
			u = !q;
		for (b = 0; b < l; b = b + 1 | 0, c = c + 1 | 0) {
			var e = g.charCodeAt(b) | 0;
			if (127 >= e) f[c] = e;
			else {
				if (2047 >= e) f[c] = 192 | e >> 6;
				else {
					a: {
						if (55296 <= e)
							if (56319 >= e) {
								var d = g.charCodeAt(b = b + 1 | 0) | 0;
								if (56320 <= d && 57343 >= d) {
									e = (e << 10) + d - 56613888 | 0;
									if (65535 < e) {
										f[c] = 240 | e >> 18;
										f[c = c + 1 | 0] = 128 | e >> 12 & 63;
										f[c = c + 1 | 0] = 128 | e >> 6 & 63;
										f[c = c + 1 | 0] = 128 | e & 63;
										continue
									}
									break a
								}
								e = 65533
							} else 57343 >= e && (e = 65533);!u && b << 1 < c && b << 1 < (c - 7 | 0) && (u = !
							0, d = new t(3 * l), d.set(f), f = d)
					}
					f[c] = 224 | e >> 12;f[c = c + 1 | 0] = 128 | e >> 6 & 63
				}
				f[c = c + 1 | 0] = 128 | e & 63
			}
		}
		return q ?
			f.subarray(0, c) : f.slice(0, c)
	};
	E || (r.TextDecoder = x, r.TextEncoder = y)
})("" + void 0 == typeof $global ? "" + void 0 == typeof self ? this : self : $global); //AnonyCo
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