42 lines
1.5 KiB
JavaScript
42 lines
1.5 KiB
JavaScript
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
const fromCharCode = String.fromCharCode;
|
|
exports.default = (buf, start, length) => {
|
|
let offset = start;
|
|
const end = offset + length;
|
|
let str = '';
|
|
while (offset < end) {
|
|
let code = buf[offset++];
|
|
if ((code & 0x80) !== 0) {
|
|
const octet2 = buf[offset++] & 0x3f;
|
|
if ((code & 0xe0) === 0xc0) {
|
|
code = ((code & 0x1f) << 6) | octet2;
|
|
}
|
|
else {
|
|
const octet3 = buf[offset++] & 0x3f;
|
|
if ((code & 0xf0) === 0xe0) {
|
|
code = ((code & 0x1f) << 12) | (octet2 << 6) | octet3;
|
|
}
|
|
else {
|
|
if ((code & 0xf8) === 0xf0) {
|
|
const octet4 = buf[offset++] & 0x3f;
|
|
let unit = ((code & 0x07) << 0x12) | (octet2 << 0x0c) | (octet3 << 0x06) | octet4;
|
|
if (unit > 0xffff) {
|
|
unit -= 0x10000;
|
|
const unit0 = ((unit >>> 10) & 0x3ff) | 0xd800;
|
|
unit = 0xdc00 | (unit & 0x3ff);
|
|
str += fromCharCode(unit0);
|
|
code = unit;
|
|
}
|
|
else {
|
|
code = unit;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
str += fromCharCode(code);
|
|
}
|
|
return str;
|
|
};
|
|
//# sourceMappingURL=v17.js.map
|