How to use the aurelia-validation.ValidationRules.customRule function in aurelia-validation

add() {
        // format datetime
        // tslint:disable-next-line:max-line-length
        const iso8601Datetime = /^\d\d\d\d-[0-1]\d-[0-3]\d[t\s](?:[0-2]\d:[0-5]\d:[0-5]\d|23:59:60)(?:\.\d+)?(?:z|[+-]\d\d:\d\d)$/i;
        ValidationRules
            .customRule('format_datetime', (val) => !!val ? iso8601Datetime.test(val) : true, this.configuration.messages.format_datetime || '${$displayName} is not a valid date/time.');
        // format date
        const iso8601Date = /^\d\d\d\d-[0-1]\d-[0-3]\d$/;
        ValidationRules
            .customRule('format_date', (val) => !!val ? iso8601Date.test(val) : true, this.configuration.messages.format_date || '${$displayName} is not a valid date.');
        // format time
        const iso8601Time = /^(?:[0-2]\d:[0-5]\d:[0-5]\d|23:59:60)(?:\.\d+)?(?:z|[+-]\d\d:\d\d)?$/i;
        ValidationRules
            .customRule('format_time', (val) => !!val ? iso8601Time.test(val) : true, this.configuration.messages.format_time || '${$displayName} is not a valid time.');
        // format ipv4
        const ipv4 = /^(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)$/;
        ValidationRules
            .customRule('format_ipv4', (val) => !!val ? ipv4.test(val) : true, this.configuration.messages.format_ipv4 || '${$displayName} is not a valid IPv4 address.');
        // format ipv6
        // tslint:disable-next-line:max-line-length
        const ipv6 = /^\s*(?:(?:(?:[0-9a-f]{1,4}:){7}(?:[0-9a-f]{1,4}|:))|(?:(?:[0-9a-f]{1,4}:){6}(?::[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){5}(?:(?:(?::[0-9a-f]{1,4}){1,2})|:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){4}(?:(?:(?::[0-9a-f]{1,4}){1,3})|(?:(?::[0-9a-f]{1,4})?:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){3}(?:(?:(?::[0-9a-f]{1,4}){1,4})|(?:(?::[0-9a-f]{1,4}){0,2}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){2}(?:(?:(?::[0-9a-f]{1,4}){1,5})|(?:(?::[0-9a-f]{1,4}){0,3}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){1}(?:(?:(?::[0-9a-f]{1,4}){1,6})|(?:(?::[0-9a-f]{1,4}){0,4}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?::(?:(?:(?::[0-9a-f]{1,4}){1,7})|(?:(?::[0-9a-f]{1,4}){0,5}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(?:%.+)?\s*$/i;

.customRule('format_ipv4', (val) => !!val ? ipv4.test(val) : true, this.configuration.messages.format_ipv4 || '${$displayName} is not a valid IPv4 address.');
        // format ipv6
        // tslint:disable-next-line:max-line-length
        const ipv6 = /^\s*(?:(?:(?:[0-9a-f]{1,4}:){7}(?:[0-9a-f]{1,4}|:))|(?:(?:[0-9a-f]{1,4}:){6}(?::[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){5}(?:(?:(?::[0-9a-f]{1,4}){1,2})|:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){4}(?:(?:(?::[0-9a-f]{1,4}){1,3})|(?:(?::[0-9a-f]{1,4})?:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){3}(?:(?:(?::[0-9a-f]{1,4}){1,4})|(?:(?::[0-9a-f]{1,4}){0,2}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){2}(?:(?:(?::[0-9a-f]{1,4}){1,5})|(?:(?::[0-9a-f]{1,4}){0,3}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){1}(?:(?:(?::[0-9a-f]{1,4}){1,6})|(?:(?::[0-9a-f]{1,4}){0,4}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?::(?:(?:(?::[0-9a-f]{1,4}){1,7})|(?:(?::[0-9a-f]{1,4}){0,5}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(?:%.+)?\s*$/i;
        ValidationRules
            .customRule('format_ipv6', (val) => !!val ? ipv6.test(val) : true, this.configuration.messages.format_ipv6 || '${$displayName} is not a valid IPv6 address.');
        // format hostname
        const hostname = /^[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?(?:\.[a-z0-9](?:[-0-9a-z]{0,61}[0-9a-z])?)*$/i;
        ValidationRules
            .customRule('format_hostname', (val) => !!val ? hostname.test(val) : true, this.configuration.messages.format_hostname || '${$displayName} is not a valid hostname.');
        // format uri
        const uri = /^(?:[a-z][a-z0-9+-.]*:)(?:\/?\/)?[^\s]*$/i;
        ValidationRules
            .customRule('format_uri', (val) => !!val ? uri.test(val) : true, this.configuration.messages.format_uri || '${$displayName} is not a valid URI.');
        // pattern
        ValidationRules
            .customRule('pattern', (val, _obj, pattern) => !!val ? (new RegExp(pattern)).test(val) : true, this.configuration.messages.pattern || '${$displayName} is not correctly formatted.', (pattern) => ({ pattern }));
    }
    bind(ctrl, rule) {

this.configuration.messages.format_time || '${$displayName} is not a valid time.'
      );

    // format ipv4
    const ipv4 = /^(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)$/;
    ValidationRules
      .customRule(
        'format_ipv4',
        (val: string) => !!val ? ipv4.test(val) : true,
        this.configuration.messages.format_ipv4 || '${$displayName} is not a valid IPv4 address.'
      );

    // format ipv6
    // tslint:disable-next-line:max-line-length
    const ipv6 = /^\s*(?:(?:(?:[0-9a-f]{1,4}:){7}(?:[0-9a-f]{1,4}|:))|(?:(?:[0-9a-f]{1,4}:){6}(?::[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){5}(?:(?:(?::[0-9a-f]{1,4}){1,2})|:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){4}(?:(?:(?::[0-9a-f]{1,4}){1,3})|(?:(?::[0-9a-f]{1,4})?:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){3}(?:(?:(?::[0-9a-f]{1,4}){1,4})|(?:(?::[0-9a-f]{1,4}){0,2}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){2}(?:(?:(?::[0-9a-f]{1,4}){1,5})|(?:(?::[0-9a-f]{1,4}){0,3}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){1}(?:(?:(?::[0-9a-f]{1,4}){1,6})|(?:(?::[0-9a-f]{1,4}){0,4}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?::(?:(?:(?::[0-9a-f]{1,4}){1,7})|(?:(?::[0-9a-f]{1,4}){0,5}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(?:%.+)?\s*$/i;
    ValidationRules
      .customRule(
        'format_ipv6',
        (val: string) => !!val ? ipv6.test(val) : true,
        this.configuration.messages.format_ipv6 || '${$displayName} is not a valid IPv6 address.'
      );

    // format hostname
    const hostname = /^[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?(?:\.[a-z0-9](?:[-0-9a-z]{0,61}[0-9a-z])?)*$/i;
    ValidationRules
      .customRule(
        'format_hostname',
        (val: string) => !!val ? hostname.test(val) : true,
        this.configuration.messages.format_hostname || '${$displayName} is not a valid hostname.'
      );

    // format uri

// format ipv4
        const ipv4 = /^(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)$/;
        ValidationRules
            .customRule('format_ipv4', (val) => !!val ? ipv4.test(val) : true, this.configuration.messages.format_ipv4 || '${$displayName} is not a valid IPv4 address.');
        // format ipv6
        // tslint:disable-next-line:max-line-length
        const ipv6 = /^\s*(?:(?:(?:[0-9a-f]{1,4}:){7}(?:[0-9a-f]{1,4}|:))|(?:(?:[0-9a-f]{1,4}:){6}(?::[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){5}(?:(?:(?::[0-9a-f]{1,4}){1,2})|:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){4}(?:(?:(?::[0-9a-f]{1,4}){1,3})|(?:(?::[0-9a-f]{1,4})?:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){3}(?:(?:(?::[0-9a-f]{1,4}){1,4})|(?:(?::[0-9a-f]{1,4}){0,2}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){2}(?:(?:(?::[0-9a-f]{1,4}){1,5})|(?:(?::[0-9a-f]{1,4}){0,3}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){1}(?:(?:(?::[0-9a-f]{1,4}){1,6})|(?:(?::[0-9a-f]{1,4}){0,4}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?::(?:(?:(?::[0-9a-f]{1,4}){1,7})|(?:(?::[0-9a-f]{1,4}){0,5}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(?:%.+)?\s*$/i;
        ValidationRules
            .customRule('format_ipv6', (val) => !!val ? ipv6.test(val) : true, this.configuration.messages.format_ipv6 || '${$displayName} is not a valid IPv6 address.');
        // format hostname
        const hostname = /^[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?(?:\.[a-z0-9](?:[-0-9a-z]{0,61}[0-9a-z])?)*$/i;
        ValidationRules
            .customRule('format_hostname', (val) => !!val ? hostname.test(val) : true, this.configuration.messages.format_hostname || '${$displayName} is not a valid hostname.');
        // format uri
        const uri = /^(?:[a-z][a-z0-9+-.]*:)(?:\/?\/)?[^\s]*$/i;
        ValidationRules
            .customRule('format_uri', (val) => !!val ? uri.test(val) : true, this.configuration.messages.format_uri || '${$displayName} is not a valid URI.');
        // pattern
        ValidationRules
            .customRule('pattern', (val, _obj, pattern) => !!val ? (new RegExp(pattern)).test(val) : true, this.configuration.messages.pattern || '${$displayName} is not correctly formatted.', (pattern) => ({ pattern }));
    }
    bind(ctrl, rule) {

(val: string) => !!val ? ipv6.test(val) : true,
        this.configuration.messages.format_ipv6 || '${$displayName} is not a valid IPv6 address.'
      );

    // format hostname
    const hostname = /^[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?(?:\.[a-z0-9](?:[-0-9a-z]{0,61}[0-9a-z])?)*$/i;
    ValidationRules
      .customRule(
        'format_hostname',
        (val: string) => !!val ? hostname.test(val) : true,
        this.configuration.messages.format_hostname || '${$displayName} is not a valid hostname.'
      );

    // format uri
    const uri = /^(?:[a-z][a-z0-9+-.]*:)(?:\/?\/)?[^\s]*$/i;
    ValidationRules
      .customRule(
        'format_uri',
        (val: string) => !!val ? uri.test(val) : true,
        this.configuration.messages.format_uri || '${$displayName} is not a valid URI.'
      );

    // pattern
    ValidationRules
      .customRule(
        'pattern',
        (val, _obj, pattern) => !!val ? (new RegExp(pattern)).test(val) : true,
        this.configuration.messages.pattern || '${$displayName} is not correctly formatted.',
        (pattern) => ({ pattern })
      );
  }

add() {
        // minimum
        ValidationRules
            .customRule('minimum', (val, _obj, min) => val !== undefined ? val >= min : true, this.configuration.messages.minimum || '${$displayName} must be greater than or equal to ${$config.min}.', (min) => ({ min }));
        // exclusionMinimum
        ValidationRules
            .customRule('exclusiveMinimum', (val, _obj, min) => val !== undefined ? val > min : true, this.configuration.messages.exclusiveMinimum || '${$displayName} must be greater than ${$config.min}.', (min) => ({ min }));
        // maximum
        ValidationRules
            .customRule('maximum', (val, _obj, max) => val !== undefined ? val <= max : true, this.configuration.messages.maximum || '${$displayName} must be less than or equal to ${$config.max}.', (max) => ({ max }));
        // exclusiveMaximum
        ValidationRules
            .customRule('exclusiveMaximum', (val, _obj, max) => val !== undefined ? val < max : true, this.configuration.messages.exclusiveMaximum || '${$displayName} must be less than ${$config.max}.', (max) => ({ max }));
        // multipleOf
        ValidationRules
            .customRule('multipleOf', (val, _obj, multiple) => val !== undefined ? ((val % multiple) / 100) === 0 : true, this.configuration.messages.multipleOf || '${$displayName} must be a multiple of ${$config.multiple}.', (multiple) => ({ multiple }));
    }
    bind(ctrl, rule) {

add() {
    // minimum
    ValidationRules
      .customRule(
        'minimum',
        (val, _obj, min) => val !== undefined ? val >= min : true,
        this.configuration.messages.minimum || '${$displayName} must be greater than or equal to ${$config.min}.',
        (min) => ({ min })
      );

    // exclusionMinimum
    ValidationRules
      .customRule(
        'exclusiveMinimum',
        (val, _obj, min) => val !== undefined ? val > min : true,
        this.configuration.messages.exclusiveMinimum || '${$displayName} must be greater than ${$config.min}.',
        (min) => ({ min })
      );

return Configure;
    },
    languages: (l) => {
      UIConstants.Languages = l;
      return Configure;
    }
  };

  if (configCallback !== undefined && typeof configCallback === 'function') {
    configCallback(Configure);
  }

  // Validation Rules
  ValidationRules
    .customRule('phone', (value, obj) => value === null || value === undefined || value === '' || PhoneLib.isValid(value), '\${$displayName } is not a valid phone number.');
  ValidationRules
    .customRule('integer', (value, obj, min, max) => value === null || value === undefined || value === '' || (Number.isInteger(value) && value >= (isEmpty(min) ? Number.MIN_VALUE : min) && value <= (isEmpty(max) ? Number.MAX_VALUE : max)),
    '\${$displayName} must be an integer value between \${$config.min} and \${$config.max}.', (min, max) => ({ min, max }));
  ValidationRules
    .customRule('decimal', (value, obj, min, max) => value === null || value === undefined || value === '' || (isNumber(value) && Math.floor(value % 1) === 0 && value >= (isEmpty(min) ? Number.MIN_VALUE : min) && value <= (isEmpty(max) ? Number.MAX_VALUE : max)),
    '\${$displayName} must be a decimal value between \${$config.min} and \${$config.max}.', (min, max) => ({ min, max }));
  ValidationRules
    .customRule('language', (map, obj, controller, langInput) => {
      if (!(langInput && langInput.addError && langInput.removeError)) throw new Error('Language validation must have reference to ui-language');
      let promises = [];
      _.forEach(map, (model, key) => {
        promises.push(controller.validator.validateObject(model)
          .then(e => {
            if (langInput.errors.indexOf(key) > -1) langInput.removeError(key);
            if (e.length > 0) langInput.addError(key);
            return e.length > 0 ? true : false;
          }));

add() {
    // minimum
    ValidationRules
      .customRule(
        'minimum',
        (val, _obj, min) => val !== undefined ? val >= min : true,
        this.configuration.messages.minimum || '${$displayName} must be greater than or equal to ${$config.min}.',
        (min) => ({ min })
      );

    // exclusionMinimum
    ValidationRules
      .customRule(
        'exclusiveMinimum',
        (val, _obj, min) => val !== undefined ? val > min : true,
        this.configuration.messages.exclusiveMinimum || '${$displayName} must be greater than ${$config.min}.',
        (min) => ({ min })
      );

    // maximum
    ValidationRules
      .customRule(
        'maximum',
        (val, _obj, max) => val !== undefined ? val <= max : true,
        this.configuration.messages.maximum || '${$displayName} must be less than or equal to ${$config.max}.',
        (max) => ({ max })
      );

var registerValidators = function (container) {
    container.get(ValidationController).validateTrigger = validateTrigger.changeOrBlur;
    ValidationRules.customRule("url", function (value) {
        return value === null ||
            value === undefined ||
            value === "" ||
            /^((http[s]?|ftp):\/)?\/?([^:\/\s]+)((\/\w+)*\/)([\w\-.]+[^#?\s]+)(.*)?(#[\w\-]+)?$/.test(value);
    }, "\${$displayName} is not a valid url.");
    ValidationRules.customRule("phone", function (value) {
        return value === null || value === undefined || value === "" || parsePhoneNumberFromString(value).isValid();
    }, "\${$displayName} is not a valid phone number.");
    ValidationRules.customRule("number", function (value, obj, min, max) {
        return value === null ||
            value === undefined ||
            value === "" ||
            (isNumber(value) &&
                value >= (isEmpty(min) ? Number.MIN_VALUE : min) &&
                value <= (isEmpty(max) ? Number.MAX_VALUE : max));
    }, "\${$displayName} must be an number value between \${$config.min} and \${$config.max}.", function (min, max) { return ({ min: min, max: max }); });