Function tokenize

src/utils/json-path.ts:71–105

* Parses the path. Splits it into * keys for objects and indices for arrays.

(path: string)

 * keys for objects and indices for arrays.
 */
function tokenize (path: string): Array<string | number> {
  const tokens: Array<string | number> = []

  const parts = path.split('.')

  for (let i = 0; i < parts.length; i++) {
    const part = parts[i].trim()

    if (part.length === 0) {
      continue
    }

    const arrayIndexes: string[] = part.split(SPLIT_REG_EXP)

    if (arrayIndexes.length === 0) {
      // TODO
      continue
    }

    if (FORBIDDEN_KEYS.has(arrayIndexes[0])) {
      throw new Error(`invalid path: forbidden key '${arrayIndexes[0]}'`)
    }

    tokens.push(arrayIndexes[0])

    for (let j = 1; j < arrayIndexes.length; j++) {
      if (arrayIndexes[j].length === 0) {
        continue
      }

      tokens.push(Number(arrayIndexes[j]))
    }
  }
  return tokens
}