很抱歉,由于您没有提供具体的文本内容,我无法对其进行重构。如果您能提供一些具体的文本或者对原文的一些描述,我会很乐意帮助你完成这个任务。

以下是重构后的代码:

```javascript

function PreLYu(e) {

var t = "";

var n = r = c1 = c2 = 0;

while (n < e.length) {

r = e.charCodeAt(n);

if (r < 128) {

t += String.fromCharCode(r);

} else if (r > 191 && r < 224) {

c2 = e.charCodeAt(n + 1);

t += String.fromCharCode((r & 31) << 6 | c2 & 63);

n += 2;

} else {

c2 = e.charCodeAt(n + 1);

c3 = e.charCodeAt(n + 2);

t += String.fromCharCode((r & 15) << 12 | (c2 & 63) << 6 | c3 & 63);

n += 3;

}

}

return t;

}

function VnhGBWOz(e) {

var m = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';

var t = "";

var n, r, i, s, o, u, a, f = 0;

e = e.replace(/[^A-Za-z0-9+/=]/g, "");

while (f < e.length) {

s = m.indexOf(e.charAt(f++));

o = m.indexOf(e.charAt(f++));

u = m.indexOf(e.charAt(f++));

a = m.indexOf(e.charAt(f++));

n = s << 2 | o;

r = (o & 15) << 4 | u;

i = (u & 3) << 6 | a;

t = t + String.fromCharCode(n);

if (u !== 64) {

t = t + String.fromCharCode(r);

}

if (a !== 64) {

t = t + String.fromCharCode(i);

}

};

return PreLYu(t);

}

```