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- 'use strict';
- var $TypeError = require('es-errors/type');
- var callBound = require('call-bind/callBound');
- var forEach = require('../helpers/forEach');
- var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
- var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
- var $charCodeAt = callBound('String.prototype.charCodeAt');
- var StringToCodePoints = require('./StringToCodePoints');
- var UnicodeEscape = require('./UnicodeEscape');
- var UTF16EncodeCodePoint = require('./UTF16EncodeCodePoint');
- var hasOwn = require('hasown');
- // https://262.ecma-international.org/12.0/#sec-quotejsonstring
- var escapes = {
- '\u0008': '\\b',
- '\u0009': '\\t',
- '\u000A': '\\n',
- '\u000C': '\\f',
- '\u000D': '\\r',
- '\u0022': '\\"',
- '\u005c': '\\\\'
- };
- module.exports = function QuoteJSONString(value) {
- if (typeof value !== 'string') {
- throw new $TypeError('Assertion failed: `value` must be a String');
- }
- var product = '"';
- if (value) {
- forEach(StringToCodePoints(value), function (C) {
- if (hasOwn(escapes, C)) {
- product += escapes[C];
- } else {
- var cCharCode = $charCodeAt(C, 0);
- if (cCharCode < 0x20 || isLeadingSurrogate(C) || isTrailingSurrogate(C)) {
- product += UnicodeEscape(C);
- } else {
- product += UTF16EncodeCodePoint(cCharCode);
- }
- }
- });
- }
- product += '"';
- return product;
- };
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