node-ejs-renderer/node_modules/@jsonjoy.com/util/lib/buffers/utf8/decodeUtf8/v5.js
2024-06-09 13:55:01 -04:00

37 lines
1.3 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = (uint8, start, length) => {
const end = start + length;
let x = start;
let str = '';
while (x < end) {
const b1 = uint8[x++];
if ((b1 & 0x80) === 0) {
str += String.fromCharCode(b1);
continue;
}
else if ((b1 & 0xe0) === 0xc0) {
str += String.fromCharCode(((b1 & 0x1f) << 6) | (uint8[x++] & 0x3f));
}
else if ((b1 & 0xf0) === 0xe0) {
str += String.fromCharCode(((b1 & 0x1f) << 12) | ((uint8[x++] & 0x3f) << 6) | (uint8[x++] & 0x3f));
}
else if ((b1 & 0xf8) === 0xf0) {
const b2 = uint8[x++] & 0x3f;
const b3 = uint8[x++] & 0x3f;
const b4 = uint8[x++] & 0x3f;
let code = ((b1 & 0x07) << 0x12) | (b2 << 0x0c) | (b3 << 0x06) | b4;
if (code > 0xffff) {
code -= 0x10000;
str += String.fromCharCode(((code >>> 10) & 0x3ff) | 0xd800);
code = 0xdc00 | (code & 0x3ff);
}
str += String.fromCharCode(code);
}
else {
str += String.fromCharCode(b1);
}
}
return str;
};
//# sourceMappingURL=v5.js.map