Method validateDigitMappingValue

src/Encoder/Bootstring.js:478–500

* Validates the digit mapping value. * @param {Chain} value Value to be validated * @param {Field} setting Sender field * @return {boolean|object}

(value, setting)

   * @return {boolean|object}
   */
  validateDigitMappingValue (value, setting) {
    // Can't validate digit mapping without valid basic range
    if (!this.isSettingValid('basicRangeStart', 'basicRangeEnd')) {
      return false
    }

    const basicRangeStart = this.getSettingValue('basicRangeStart')
    const basicRangeEnd = this.getSettingValue('basicRangeEnd')

    const invalidIndex = value.getCodePoints().findIndex(codePoint =>
      codePoint < basicRangeStart || codePoint > basicRangeEnd)

    if (invalidIndex !== -1) {
      return {
        key: 'bootstringDigitMappingInvalid',
        message:
          `Character at index ${invalidIndex} needs to be part of the given ` +
          'basic code point range'
      }
    }

    return true
  }

  /**
   * Validates the delimiter value.