Function escapeJsonString

src/common/json.ts:45–64

(s: string)

 *
 */
export function escapeJsonString(s: string): string {
  const result: string[] = [];
  for (const codePoint of Array.from(s)) {
    if (codePoint === undefined) break;
    const code = codePoint.codePointAt(0)!;
    if (JSON_ESCAPE_CHARS[code]) {
      result.push(JSON_ESCAPE_CHARS[code]);
    } else if (code > 0xffff) {
      const high = Math.floor((code - 0x10000) / 0x400) + 0xd800;
      const low = ((code - 0x10000) % 0x400) + 0xdc00;
      result.push(`\\u${high.toString(16).padStart(4, '0')}`);
      result.push(`\\u${low.toString(16).padStart(4, '0')}`);
    } else if (code < 0x20) {
      result.push(`\\u${code.toString(16).padStart(4, '0')}`);
    } else {
      result.push(codePoint);
    }
  }
  return result.join('');
}

export function unescapeJsonString(s: string | any): string {
  if (typeof s !== 'string') return s;