const suspectProtoRx = /"(?:_|\\u005[Ff])(?:_|\\u005[Ff])(?:p|\\u0070)(?:r|\\u0072)(?:o|\\u006[Ff])(?:t|\\u0074)(?:o|\\u006[Ff])(?:_|\\u005[Ff])(?:_|\\u005[Ff])"\s*:/;
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const suspectConstructorRx = /"(?:c|\\u0063)(?:o|\\u006[Ff])(?:n|\\u006[Ee])(?:s|\\u0073)(?:t|\\u0074)(?:r|\\u0072)(?:u|\\u0075)(?:c|\\u0063)(?:t|\\u0074)(?:o|\\u006[Ff])(?:r|\\u0072)"\s*:/;
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const JsonSigRx = /^["{[]|^-?[0-9][0-9.]{0,14}$/;
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function jsonParseTransform(key, value) {
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if (key === "__proto__" || key === "constructor") {
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return;
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}
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return value;
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}
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function destr(val) {
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if (typeof val !== "string") {
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return val;
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}
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const _lval = val.toLowerCase();
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if (_lval === "true") {
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return true;
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}
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if (_lval === "false") {
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return false;
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}
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if (_lval === "null") {
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return null;
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}
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if (_lval === "nan") {
|
return NaN;
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}
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if (_lval === "infinity") {
|
return Infinity;
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}
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if (_lval === "undefined") {
|
return void 0;
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}
|
if (!JsonSigRx.test(val)) {
|
return val;
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}
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try {
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if (suspectProtoRx.test(val) || suspectConstructorRx.test(val)) {
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return JSON.parse(val, jsonParseTransform);
|
}
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return JSON.parse(val);
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} catch (_e) {
|
return val;
|
}
|
}
|
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export default destr;
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