epoberezkin/ajv

const rxEscapable =
  // eslint-disable-next-line no-control-regex, no-misleading-character-class
  /[\\"\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g

const escaped: {[K in string]?: string} = {
  "\b": "\\b",
  "\t": "\\t",
  "\n": "\\n",
  "\f": "\\f",
  "\r": "\\r",
  '"': '\\"',
  "\\": "\\\\",
}

export default function quote(s: string): string {
  rxEscapable.lastIndex = 0
  return (
    '"' +
    (rxEscapable.test(s)
      ? s.replace(rxEscapable, (a) => {
          const c = escaped[a]
          return typeof c === "string"
            ? c
            : "\\u" + ("0000" + a.charCodeAt(0).toString(16)).slice(-4)
        })
      : s) +
    '"'
  )
}

quote.code = 'require("ajv/dist/runtime/quote").default'