@coze/taro-api
Version:
Official Coze Taro SDK for seamless AI integration into your applications | 扣子官方 Taro SDK，助您轻松集成 AI 能力到应用中
47 lines (46 loc) • 1.55 kB
JavaScript
/* eslint-disable @typescript-eslint/no-magic-numbers -- ignore */
/* eslint-disable security/detect-object-injection -- ignore */
// reference: https://gist.github.com/Yaffle/5458286
class TextDecoderPonyfill {
decode(octets) {
let string = '';
let i = 0;
while (i < octets.length) {
let octet = octets[i];
let bytesNeeded = 0;
let codePoint = 0;
if (octet <= 0x7f) {
bytesNeeded = 0;
codePoint = octet & 0xff;
}
else if (octet <= 0xdf) {
bytesNeeded = 1;
codePoint = octet & 0x1f;
}
else if (octet <= 0xef) {
bytesNeeded = 2;
codePoint = octet & 0x0f;
}
else if (octet <= 0xf4) {
bytesNeeded = 3;
codePoint = octet & 0x07;
}
if (octets.length - i - bytesNeeded > 0) {
let k = 0;
while (k < bytesNeeded) {
octet = octets[i + k + 1];
codePoint = (codePoint << 6) | (octet & 0x3f);
k += 1;
}
}
else {
codePoint = 0xfffd;
bytesNeeded = octets.length - i;
}
string += String.fromCodePoint(codePoint);
i += bytesNeeded + 1;
}
return string;
}
}
export const TextDecoder = (globalThis || window).TextDecoder ?? TextDecoderPonyfill;