/**
  * vee-validate v2.0.0-rc.26
  * (c) 2017 Abdelrahman Awad
  * @license MIT
  */
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(global.VeeValidate = factory());
}(this, (function () { 'use strict';

var MILLISECONDS_IN_HOUR = 3600000;
var MILLISECONDS_IN_MINUTE = 60000;
var DEFAULT_ADDITIONAL_DIGITS = 2;

var patterns = {
  dateTimeDelimeter: /[T ]/,
  plainTime: /:/,

  // year tokens
  YY: /^(\d{2})$/,
  YYY: [
    /^([+-]\d{2})$/, // 0 additional digits
    /^([+-]\d{3})$/, // 1 additional digit
    /^([+-]\d{4})$/ // 2 additional digits
  ],
  YYYY: /^(\d{4})/,
  YYYYY: [
    /^([+-]\d{4})/, // 0 additional digits
    /^([+-]\d{5})/, // 1 additional digit
    /^([+-]\d{6})/ // 2 additional digits
  ],

  // date tokens
  MM: /^-(\d{2})$/,
  DDD: /^-?(\d{3})$/,
  MMDD: /^-?(\d{2})-?(\d{2})$/,
  Www: /^-?W(\d{2})$/,
  WwwD: /^-?W(\d{2})-?(\d{1})$/,

  HH: /^(\d{2}([.,]\d*)?)$/,
  HHMM: /^(\d{2}):?(\d{2}([.,]\d*)?)$/,
  HHMMSS: /^(\d{2}):?(\d{2}):?(\d{2}([.,]\d*)?)$/,

  // timezone tokens
  timezone: /([Z+-].*)$/,
  timezoneZ: /^(Z)$/,
  timezoneHH: /^([+-])(\d{2})$/,
  timezoneHHMM: /^([+-])(\d{2}):?(\d{2})$/
};

/**
 * @name toDate
 * @category Common Helpers
 * @summary Convert the given argument to an instance of Date.
 *
 * @description
 * Convert the given argument to an instance of Date.
 *
 * If the argument is an instance of Date, the function returns its clone.
 *
 * If the argument is a number, it is treated as a timestamp.
 *
 * If an argument is a string, the function tries to parse it.
 * Function accepts complete ISO 8601 formats as well as partial implementations.
 * ISO 8601: http://en.wikipedia.org/wiki/ISO_8601
 *
 * If the argument is null, it is treated as an invalid date.
 *
 * If all above fails, the function passes the given argument to Date constructor.
 *
 * **Note**: *all* Date arguments passed to any *date-fns* function is processed by `toDate`.
 * All *date-fns* functions will throw `RangeError` if `options.additionalDigits` is not 0, 1, 2 or undefined.
 *
 * @param {*} argument - the value to convert
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - the additional number of digits in the extended year format
 * @returns {Date} the parsed date in the local time zone
 * @throws {TypeError} 1 argument required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 *
 * @example
 * // Convert string '2014-02-11T11:30:30' to date:
 * var result = toDate('2014-02-11T11:30:30')
 * //=> Tue Feb 11 2014 11:30:30
 *
 * @example
 * // Convert string '+02014101' to date,
 * // if the additional number of digits in the extended year format is 1:
 * var result = toDate('+02014101', {additionalDigits: 1})
 * //=> Fri Apr 11 2014 00:00:00
 */
function toDate (argument, dirtyOptions) {
  if (arguments.length < 1) {
    throw new TypeError('1 argument required, but only ' + arguments.length + ' present')
  }

  if (argument === null) {
    return new Date(NaN)
  }

  var options = dirtyOptions || {};

  var additionalDigits = options.additionalDigits === undefined ? DEFAULT_ADDITIONAL_DIGITS : Number(options.additionalDigits);
  if (additionalDigits !== 2 && additionalDigits !== 1 && additionalDigits !== 0) {
    throw new RangeError('additionalDigits must be 0, 1 or 2')
  }

  // Clone the date
  if (argument instanceof Date) {
    // Prevent the date to lose the milliseconds when passed to new Date() in IE10
    return new Date(argument.getTime())
  } else if (typeof argument !== 'string') {
    return new Date(argument)
  }

  var dateStrings = splitDateString(argument);

  var parseYearResult = parseYear(dateStrings.date, additionalDigits);
  var year = parseYearResult.year;
  var restDateString = parseYearResult.restDateString;

  var date = parseDate(restDateString, year);

  if (date) {
    var timestamp = date.getTime();
    var time = 0;
    var offset;

    if (dateStrings.time) {
      time = parseTime(dateStrings.time);
    }

    if (dateStrings.timezone) {
      offset = parseTimezone(dateStrings.timezone);
    } else {
      // get offset accurate to hour in timezones that change offset
      offset = new Date(timestamp + time).getTimezoneOffset();
      offset = new Date(timestamp + time + offset * MILLISECONDS_IN_MINUTE).getTimezoneOffset();
    }

    return new Date(timestamp + time + offset * MILLISECONDS_IN_MINUTE)
  } else {
    return new Date(argument)
  }
}

function splitDateString (dateString) {
  var dateStrings = {};
  var array = dateString.split(patterns.dateTimeDelimeter);
  var timeString;

  if (patterns.plainTime.test(array[0])) {
    dateStrings.date = null;
    timeString = array[0];
  } else {
    dateStrings.date = array[0];
    timeString = array[1];
  }

  if (timeString) {
    var token = patterns.timezone.exec(timeString);
    if (token) {
      dateStrings.time = timeString.replace(token[1], '');
      dateStrings.timezone = token[1];
    } else {
      dateStrings.time = timeString;
    }
  }

  return dateStrings
}

function parseYear (dateString, additionalDigits) {
  var patternYYY = patterns.YYY[additionalDigits];
  var patternYYYYY = patterns.YYYYY[additionalDigits];

  var token;

  // YYYY or ±YYYYY
  token = patterns.YYYY.exec(dateString) || patternYYYYY.exec(dateString);
  if (token) {
    var yearString = token[1];
    return {
      year: parseInt(yearString, 10),
      restDateString: dateString.slice(yearString.length)
    }
  }

  // YY or ±YYY
  token = patterns.YY.exec(dateString) || patternYYY.exec(dateString);
  if (token) {
    var centuryString = token[1];
    return {
      year: parseInt(centuryString, 10) * 100,
      restDateString: dateString.slice(centuryString.length)
    }
  }

  // Invalid ISO-formatted year
  return {
    year: null
  }
}

function parseDate (dateString, year) {
  // Invalid ISO-formatted year
  if (year === null) {
    return null
  }

  var token;
  var date;
  var month;
  var week;

  // YYYY
  if (dateString.length === 0) {
    date = new Date(0);
    date.setUTCFullYear(year);
    return date
  }

  // YYYY-MM
  token = patterns.MM.exec(dateString);
  if (token) {
    date = new Date(0);
    month = parseInt(token[1], 10) - 1;
    date.setUTCFullYear(year, month);
    return date
  }

  // YYYY-DDD or YYYYDDD
  token = patterns.DDD.exec(dateString);
  if (token) {
    date = new Date(0);
    var dayOfYear = parseInt(token[1], 10);
    date.setUTCFullYear(year, 0, dayOfYear);
    return date
  }

  // YYYY-MM-DD or YYYYMMDD
  token = patterns.MMDD.exec(dateString);
  if (token) {
    date = new Date(0);
    month = parseInt(token[1], 10) - 1;
    var day = parseInt(token[2], 10);
    date.setUTCFullYear(year, month, day);
    return date
  }

  // YYYY-Www or YYYYWww
  token = patterns.Www.exec(dateString);
  if (token) {
    week = parseInt(token[1], 10) - 1;
    return dayOfISOYear(year, week)
  }

  // YYYY-Www-D or YYYYWwwD
  token = patterns.WwwD.exec(dateString);
  if (token) {
    week = parseInt(token[1], 10) - 1;
    var dayOfWeek = parseInt(token[2], 10) - 1;
    return dayOfISOYear(year, week, dayOfWeek)
  }

  // Invalid ISO-formatted date
  return null
}

function parseTime (timeString) {
  var token;
  var hours;
  var minutes;

  // hh
  token = patterns.HH.exec(timeString);
  if (token) {
    hours = parseFloat(token[1].replace(',', '.'));
    return (hours % 24) * MILLISECONDS_IN_HOUR
  }

  // hh:mm or hhmm
  token = patterns.HHMM.exec(timeString);
  if (token) {
    hours = parseInt(token[1], 10);
    minutes = parseFloat(token[2].replace(',', '.'));
    return (hours % 24) * MILLISECONDS_IN_HOUR +
      minutes * MILLISECONDS_IN_MINUTE
  }

  // hh:mm:ss or hhmmss
  token = patterns.HHMMSS.exec(timeString);
  if (token) {
    hours = parseInt(token[1], 10);
    minutes = parseInt(token[2], 10);
    var seconds = parseFloat(token[3].replace(',', '.'));
    return (hours % 24) * MILLISECONDS_IN_HOUR +
      minutes * MILLISECONDS_IN_MINUTE +
      seconds * 1000
  }

  // Invalid ISO-formatted time
  return null
}

function parseTimezone (timezoneString) {
  var token;
  var absoluteOffset;

  // Z
  token = patterns.timezoneZ.exec(timezoneString);
  if (token) {
    return 0
  }

  // ±hh
  token = patterns.timezoneHH.exec(timezoneString);
  if (token) {
    absoluteOffset = parseInt(token[2], 10) * 60;
    return (token[1] === '+') ? -absoluteOffset : absoluteOffset
  }

  // ±hh:mm or ±hhmm
  token = patterns.timezoneHHMM.exec(timezoneString);
  if (token) {
    absoluteOffset = parseInt(token[2], 10) * 60 + parseInt(token[3], 10);
    return (token[1] === '+') ? -absoluteOffset : absoluteOffset
  }

  return 0
}

function dayOfISOYear (isoYear, week, day) {
  week = week || 0;
  day = day || 0;
  var date = new Date(0);
  date.setUTCFullYear(isoYear, 0, 4);
  var fourthOfJanuaryDay = date.getUTCDay() || 7;
  var diff = week * 7 + day + 1 - fourthOfJanuaryDay;
  date.setUTCDate(date.getUTCDate() + diff);
  return date
}

/**
 * @name addMilliseconds
 * @category Millisecond Helpers
 * @summary Add the specified number of milliseconds to the given date.
 *
 * @description
 * Add the specified number of milliseconds to the given date.
 *
 * @param {Date|String|Number} date - the date to be changed
 * @param {Number} amount - the amount of milliseconds to be added
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @returns {Date} the new date with the milliseconds added
 * @throws {TypeError} 2 arguments required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 *
 * @example
 * // Add 750 milliseconds to 10 July 2014 12:45:30.000:
 * var result = addMilliseconds(new Date(2014, 6, 10, 12, 45, 30, 0), 750)
 * //=> Thu Jul 10 2014 12:45:30.750
 */
function addMilliseconds (dirtyDate, dirtyAmount, dirtyOptions) {
  if (arguments.length < 2) {
    throw new TypeError('2 arguments required, but only ' + arguments.length + ' present')
  }

  var timestamp = toDate(dirtyDate, dirtyOptions).getTime();
  var amount = Number(dirtyAmount);
  return new Date(timestamp + amount)
}

function cloneObject (dirtyObject) {
  dirtyObject = dirtyObject || {};
  var object = {};

  for (var property in dirtyObject) {
    if (dirtyObject.hasOwnProperty(property)) {
      object[property] = dirtyObject[property];
    }
  }

  return object
}

var MILLISECONDS_IN_MINUTE$2 = 60000;

/**
 * @name addMinutes
 * @category Minute Helpers
 * @summary Add the specified number of minutes to the given date.
 *
 * @description
 * Add the specified number of minutes to the given date.
 *
 * @param {Date|String|Number} date - the date to be changed
 * @param {Number} amount - the amount of minutes to be added
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @returns {Date} the new date with the minutes added
 * @throws {TypeError} 2 arguments required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 *
 * @example
 * // Add 30 minutes to 10 July 2014 12:00:00:
 * var result = addMinutes(new Date(2014, 6, 10, 12, 0), 30)
 * //=> Thu Jul 10 2014 12:30:00
 */
function addMinutes (dirtyDate, dirtyAmount, dirtyOptions) {
  if (arguments.length < 2) {
    throw new TypeError('2 arguments required, but only ' + arguments.length + ' present')
  }

  var amount = Number(dirtyAmount);
  return addMilliseconds(dirtyDate, amount * MILLISECONDS_IN_MINUTE$2, dirtyOptions)
}

/**
 * @name isValid
 * @category Common Helpers
 * @summary Is the given date valid?
 *
 * @description
 * Returns false if argument is Invalid Date and true otherwise.
 * Argument is converted to Date using `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * Invalid Date is a Date, whose time value is NaN.
 *
 * Time value of Date: http://es5.github.io/#x15.9.1.1
 *
 * @param {*} date - the date to check
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @returns {Boolean} the date is valid
 * @throws {TypeError} 1 argument required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 *
 * @example
 * // For the valid date:
 * var result = isValid(new Date(2014, 1, 31))
 * //=> true
 *
 * @example
 * // For the value, convertable into a date:
 * var result = isValid('2014-02-31')
 * //=> true
 *
 * @example
 * // For the invalid date:
 * var result = isValid(new Date(''))
 * //=> false
 */
function isValid (dirtyDate, dirtyOptions) {
  if (arguments.length < 1) {
    throw new TypeError('1 argument required, but only ' + arguments.length + ' present')
  }

  var date = toDate(dirtyDate, dirtyOptions);
  return !isNaN(date)
}

var formatDistanceLocale = {
  lessThanXSeconds: {
    one: 'less than a second',
    other: 'less than {{count}} seconds'
  },

  xSeconds: {
    one: '1 second',
    other: '{{count}} seconds'
  },

  halfAMinute: 'half a minute',

  lessThanXMinutes: {
    one: 'less than a minute',
    other: 'less than {{count}} minutes'
  },

  xMinutes: {
    one: '1 minute',
    other: '{{count}} minutes'
  },

  aboutXHours: {
    one: 'about 1 hour',
    other: 'about {{count}} hours'
  },

  xHours: {
    one: '1 hour',
    other: '{{count}} hours'
  },

  xDays: {
    one: '1 day',
    other: '{{count}} days'
  },

  aboutXMonths: {
    one: 'about 1 month',
    other: 'about {{count}} months'
  },

  xMonths: {
    one: '1 month',
    other: '{{count}} months'
  },

  aboutXYears: {
    one: 'about 1 year',
    other: 'about {{count}} years'
  },

  xYears: {
    one: '1 year',
    other: '{{count}} years'
  },

  overXYears: {
    one: 'over 1 year',
    other: 'over {{count}} years'
  },

  almostXYears: {
    one: 'almost 1 year',
    other: 'almost {{count}} years'
  }
};

function formatDistance (token, count, options) {
  options = options || {};

  var result;
  if (typeof formatDistanceLocale[token] === 'string') {
    result = formatDistanceLocale[token];
  } else if (count === 1) {
    result = formatDistanceLocale[token].one;
  } else {
    result = formatDistanceLocale[token].other.replace('{{count}}', count);
  }

  if (options.addSuffix) {
    if (options.comparison > 0) {
      return 'in ' + result
    } else {
      return result + ' ago'
    }
  }

  return result
}

var tokensToBeShortedPattern = /MMMM|MM|DD|dddd/g;

function buildShortLongFormat (format) {
  return format.replace(tokensToBeShortedPattern, function (token) {
    return token.slice(1)
  })
}

/**
 * @name buildFormatLongFn
 * @category Locale Helpers
 * @summary Build `formatLong` property for locale used by `format`, `formatRelative` and `parse` functions.
 *
 * @description
 * Build `formatLong` property for locale used by `format`, `formatRelative` and `parse` functions.
 * Returns a function which takes one of the following tokens as the argument:
 * `'LTS'`, `'LT'`, `'L'`, `'LL'`, `'LLL'`, `'l'`, `'ll'`, `'lll'`, `'llll'`
 * and returns a long format string written as `format` token strings.
 * See [format]{@link https://date-fns.org/docs/format}
 *
 * `'l'`, `'ll'`, `'lll'` and `'llll'` formats are built automatically
 * by shortening some of the tokens from corresponding unshortened formats
 * (e.g., if `LL` is `'MMMM DD YYYY'` then `ll` will be `MMM D YYYY`)
 *
 * @param {Object} obj - the object with long formats written as `format` token strings
 * @param {String} obj.LT - time format: hours and minutes
 * @param {String} obj.LTS - time format: hours, minutes and seconds
 * @param {String} obj.L - short date format: numeric day, month and year
 * @param {String} [obj.l] - short date format: numeric day, month and year (shortened)
 * @param {String} obj.LL - long date format: day, month in words, and year
 * @param {String} [obj.ll] - long date format: day, month in words, and year (shortened)
 * @param {String} obj.LLL - long date and time format
 * @param {String} [obj.lll] - long date and time format (shortened)
 * @param {String} obj.LLLL - long date, time and weekday format
 * @param {String} [obj.llll] - long date, time and weekday format (shortened)
 * @returns {Function} `formatLong` property of the locale
 *
 * @example
 * // For `en-US` locale:
 * locale.formatLong = buildFormatLongFn({
 *   LT: 'h:mm aa',
 *   LTS: 'h:mm:ss aa',
 *   L: 'MM/DD/YYYY',
 *   LL: 'MMMM D YYYY',
 *   LLL: 'MMMM D YYYY h:mm aa',
 *   LLLL: 'dddd, MMMM D YYYY h:mm aa'
 * })
 */
function buildFormatLongFn (obj) {
  var formatLongLocale = {
    LTS: obj.LTS,
    LT: obj.LT,
    L: obj.L,
    LL: obj.LL,
    LLL: obj.LLL,
    LLLL: obj.LLLL,
    l: obj.l || buildShortLongFormat(obj.L),
    ll: obj.ll || buildShortLongFormat(obj.LL),
    lll: obj.lll || buildShortLongFormat(obj.LLL),
    llll: obj.llll || buildShortLongFormat(obj.LLLL)
  };

  return function (token) {
    return formatLongLocale[token]
  }
}

var formatLong = buildFormatLongFn({
  LT: 'h:mm aa',
  LTS: 'h:mm:ss aa',
  L: 'MM/DD/YYYY',
  LL: 'MMMM D YYYY',
  LLL: 'MMMM D YYYY h:mm aa',
  LLLL: 'dddd, MMMM D YYYY h:mm aa'
});

var formatRelativeLocale = {
  lastWeek: '[last] dddd [at] LT',
  yesterday: '[yesterday at] LT',
  today: '[today at] LT',
  tomorrow: '[tomorrow at] LT',
  nextWeek: 'dddd [at] LT',
  other: 'L'
};

function formatRelative (token, date, baseDate, options) {
  return formatRelativeLocale[token]
}

/**
 * @name buildLocalizeFn
 * @category Locale Helpers
 * @summary Build `localize.weekday`, `localize.month` and `localize.timeOfDay` properties for the locale.
 *
 * @description
 * Build `localize.weekday`, `localize.month` and `localize.timeOfDay` properties for the locale
 * used by `format` function.
 * If no `type` is supplied to the options of the resulting function, `defaultType` will be used (see example).
 *
 * `localize.weekday` function takes the weekday index as argument (0 - Sunday).
 * `localize.month` takes the month index (0 - January).
 * `localize.timeOfDay` takes the hours. Use `indexCallback` to convert them to an array index (see example).
 *
 * @param {Object} values - the object with arrays of values
 * @param {String} defaultType - the default type for the localize function
 * @param {Function} [indexCallback] - the callback which takes the resulting function argument
 *   and converts it into value array index
 * @returns {Function} the resulting function
 *
 * @example
 * var timeOfDayValues = {
 *   uppercase: ['AM', 'PM'],
 *   lowercase: ['am', 'pm'],
 *   long: ['a.m.', 'p.m.']
 * }
 * locale.localize.timeOfDay = buildLocalizeFn(timeOfDayValues, 'long', function (hours) {
 *   // 0 is a.m. array index, 1 is p.m. array index
 *   return (hours / 12) >= 1 ? 1 : 0
 * })
 * locale.localize.timeOfDay(16, {type: 'uppercase'}) //=> 'PM'
 * locale.localize.timeOfDay(5) //=> 'a.m.'
 */
function buildLocalizeFn (values, defaultType, indexCallback) {
  return function (dirtyIndex, dirtyOptions) {
    var options = dirtyOptions || {};
    var type = options.type ? String(options.type) : defaultType;
    var valuesArray = values[type] || values[defaultType];
    var index = indexCallback ? indexCallback(Number(dirtyIndex)) : Number(dirtyIndex);
    return valuesArray[index]
  }
}

/**
 * @name buildLocalizeArrayFn
 * @category Locale Helpers
 * @summary Build `localize.weekdays`, `localize.months` and `localize.timesOfDay` properties for the locale.
 *
 * @description
 * Build `localize.weekdays`, `localize.months` and `localize.timesOfDay` properties for the locale.
 * If no `type` is supplied to the options of the resulting function, `defaultType` will be used (see example).
 *
 * @param {Object} values - the object with arrays of values
 * @param {String} defaultType - the default type for the localize function
 * @returns {Function} the resulting function
 *
 * @example
 * var weekdayValues = {
 *   narrow: ['Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa'],
 *   short: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
 *   long: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']
 * }
 * locale.localize.weekdays = buildLocalizeArrayFn(weekdayValues, 'long')
 * locale.localize.weekdays({type: 'narrow'}) //=> ['Su', 'Mo', ...]
 * locale.localize.weekdays() //=> ['Sunday', 'Monday', ...]
 */
function buildLocalizeArrayFn (values, defaultType) {
  return function (dirtyOptions) {
    var options = dirtyOptions || {};
    var type = options.type ? String(options.type) : defaultType;
    return values[type] || values[defaultType]
  }
}

// Note: in English, the names of days of the week and months are capitalized.
// If you are making a new locale based on this one, check if the same is true for the language you're working on.
// Generally, formatted dates should look like they are in the middle of a sentence,
// e.g. in Spanish language the weekdays and months should be in the lowercase.
var weekdayValues = {
  narrow: ['Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa'],
  short: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
  long: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']
};

var monthValues = {
  short: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
  long: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']
};

// `timeOfDay` is used to designate which part of the day it is, when used with 12-hour clock.
// Use the system which is used the most commonly in the locale.
// For example, if the country doesn't use a.m./p.m., you can use `night`/`morning`/`afternoon`/`evening`:
//
//   var timeOfDayValues = {
//     any: ['in the night', 'in the morning', 'in the afternoon', 'in the evening']
//   }
//
// And later:
//
//   var localize = {
//     // The callback takes the hours as the argument and returns the array index
//     timeOfDay: buildLocalizeFn(timeOfDayValues, 'any', function (hours) {
//       if (hours >= 17) {
//         return 3
//       } else if (hours >= 12) {
//         return 2
//       } else if (hours >= 4) {
//         return 1
//       } else {
//         return 0
//       }
//     }),
//     timesOfDay: buildLocalizeArrayFn(timeOfDayValues, 'any')
//   }
var timeOfDayValues = {
  uppercase: ['AM', 'PM'],
  lowercase: ['am', 'pm'],
  long: ['a.m.', 'p.m.']
};

function ordinalNumber (dirtyNumber, dirtyOptions) {
  var number = Number(dirtyNumber);

  // If ordinal numbers depend on context, for example,
  // if they are different for different grammatical genders,
  // use `options.unit`:
  //
  //   var options = dirtyOptions || {}
  //   var unit = String(options.unit)
  //
  // where `unit` can be 'month', 'quarter', 'week', 'isoWeek', 'dayOfYear',
  // 'dayOfMonth' or 'dayOfWeek'

  var rem100 = number % 100;
  if (rem100 > 20 || rem100 < 10) {
    switch (rem100 % 10) {
      case 1:
        return number + 'st'
      case 2:
        return number + 'nd'
      case 3:
        return number + 'rd'
    }
  }
  return number + 'th'
}

var localize = {
  ordinalNumber: ordinalNumber,
  weekday: buildLocalizeFn(weekdayValues, 'long'),
  weekdays: buildLocalizeArrayFn(weekdayValues, 'long'),
  month: buildLocalizeFn(monthValues, 'long'),
  months: buildLocalizeArrayFn(monthValues, 'long'),
  timeOfDay: buildLocalizeFn(timeOfDayValues, 'long', function (hours) {
    return (hours / 12) >= 1 ? 1 : 0
  }),
  timesOfDay: buildLocalizeArrayFn(timeOfDayValues, 'long')
};

/**
 * @name buildMatchFn
 * @category Locale Helpers
 * @summary Build `match.weekdays`, `match.months` and `match.timesOfDay` properties for the locale.
 *
 * @description
 * Build `match.weekdays`, `match.months` and `match.timesOfDay` properties for the locale used by `parse` function.
 * If no `type` is supplied to the options of the resulting function, `defaultType` will be used (see example).
 * The result of the match function will be passed into corresponding parser function
 * (`match.weekday`, `match.month` or `match.timeOfDay` respectively. See `buildParseFn`).
 *
 * @param {Object} values - the object with RegExps
 * @param {String} defaultType - the default type for the match function
 * @returns {Function} the resulting function
 *
 * @example
 * var matchWeekdaysPatterns = {
 *   narrow: /^(su|mo|tu|we|th|fr|sa)/i,
 *   short: /^(sun|mon|tue|wed|thu|fri|sat)/i,
 *   long: /^(sunday|monday|tuesday|wednesday|thursday|friday|saturday)/i
 * }
 * locale.match.weekdays = buildMatchFn(matchWeekdaysPatterns, 'long')
 * locale.match.weekdays('Sunday', {type: 'narrow'}) //=> ['Su', 'Su', ...]
 * locale.match.weekdays('Sunday') //=> ['Sunday', 'Sunday', ...]
 */
function buildMatchFn (patterns, defaultType) {
  return function (dirtyString, dirtyOptions) {
    var options = dirtyOptions || {};
    var type = options.type ? String(options.type) : defaultType;
    var pattern = patterns[type] || patterns[defaultType];
    var string = String(dirtyString);
    return string.match(pattern)
  }
}

/**
 * @name buildParseFn
 * @category Locale Helpers
 * @summary Build `match.weekday`, `match.month` and `match.timeOfDay` properties for the locale.
 *
 * @description
 * Build `match.weekday`, `match.month` and `match.timeOfDay` properties for the locale used by `parse` function.
 * The argument of the resulting function is the result of the corresponding match function
 * (`match.weekdays`, `match.months` or `match.timesOfDay` respectively. See `buildMatchFn`).
 *
 * @param {Object} values - the object with arrays of RegExps
 * @param {String} defaultType - the default type for the parser function
 * @returns {Function} the resulting function
 *
 * @example
 * var parseWeekdayPatterns = {
 *   any: [/^su/i, /^m/i, /^tu/i, /^w/i, /^th/i, /^f/i, /^sa/i]
 * }
 * locale.match.weekday = buildParseFn(matchWeekdaysPatterns, 'long')
 * var matchResult = locale.match.weekdays('Friday')
 * locale.match.weekday(matchResult) //=> 5
 */
function buildParseFn (patterns, defaultType) {
  return function (matchResult, dirtyOptions) {
    var options = dirtyOptions || {};
    var type = options.type ? String(options.type) : defaultType;
    var patternsArray = patterns[type] || patterns[defaultType];
    var string = matchResult[1];

    return patternsArray.findIndex(function (pattern) {
      return pattern.test(string)
    })
  }
}

/**
 * @name buildMatchPatternFn
 * @category Locale Helpers
 * @summary Build match function from a single RegExp.
 *
 * @description
 * Build match function from a single RegExp.
 * Usually used for building `match.ordinalNumbers` property of the locale.
 *
 * @param {Object} pattern - the RegExp
 * @returns {Function} the resulting function
 *
 * @example
 * locale.match.ordinalNumbers = buildMatchPatternFn(/^(\d+)(th|st|nd|rd)?/i)
 * locale.match.ordinalNumbers('3rd') //=> ['3rd', '3', 'rd', ...]
 */
function buildMatchPatternFn (pattern) {
  return function (dirtyString) {
    var string = String(dirtyString);
    return string.match(pattern)
  }
}

/**
 * @name parseDecimal
 * @category Locale Helpers
 * @summary Parses the match result into decimal number.
 *
 * @description
 * Parses the match result into decimal number.
 * Uses the string matched with the first set of parentheses of match RegExp.
 *
 * @param {Array} matchResult - the object returned by matching function
 * @returns {Number} the parsed value
 *
 * @example
 * locale.match = {
 *   ordinalNumbers: (dirtyString) {
 *     return String(dirtyString).match(/^(\d+)(th|st|nd|rd)?/i)
 *   },
 *   ordinalNumber: parseDecimal
 * }
 */
function parseDecimal (matchResult) {
  return parseInt(matchResult[1], 10)
}

var matchOrdinalNumbersPattern = /^(\d+)(th|st|nd|rd)?/i;

var matchWeekdaysPatterns = {
  narrow: /^(su|mo|tu|we|th|fr|sa)/i,
  short: /^(sun|mon|tue|wed|thu|fri|sat)/i,
  long: /^(sunday|monday|tuesday|wednesday|thursday|friday|saturday)/i
};

var parseWeekdayPatterns = {
  any: [/^su/i, /^m/i, /^tu/i, /^w/i, /^th/i, /^f/i, /^sa/i]
};

var matchMonthsPatterns = {
  short: /^(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)/i,
  long: /^(january|february|march|april|may|june|july|august|september|october|november|december)/i
};

var parseMonthPatterns = {
  any: [/^ja/i, /^f/i, /^mar/i, /^ap/i, /^may/i, /^jun/i, /^jul/i, /^au/i, /^s/i, /^o/i, /^n/i, /^d/i]
};

// `timeOfDay` is used to designate which part of the day it is, when used with 12-hour clock.
// Use the system which is used the most commonly in the locale.
// For example, if the country doesn't use a.m./p.m., you can use `night`/`morning`/`afternoon`/`evening`:
//
//   var matchTimesOfDayPatterns = {
//     long: /^((in the)? (night|morning|afternoon|evening?))/i
//   }
//
//   var parseTimeOfDayPatterns = {
//     any: [/(night|morning)/i, /(afternoon|evening)/i]
//   }
var matchTimesOfDayPatterns = {
  short: /^(am|pm)/i,
  long: /^([ap]\.?\s?m\.?)/i
};

var parseTimeOfDayPatterns = {
  any: [/^a/i, /^p/i]
};

var match = {
  ordinalNumbers: buildMatchPatternFn(matchOrdinalNumbersPattern),
  ordinalNumber: parseDecimal,
  weekdays: buildMatchFn(matchWeekdaysPatterns, 'long'),
  weekday: buildParseFn(parseWeekdayPatterns, 'any'),
  months: buildMatchFn(matchMonthsPatterns, 'long'),
  month: buildParseFn(parseMonthPatterns, 'any'),
  timesOfDay: buildMatchFn(matchTimesOfDayPatterns, 'long'),
  timeOfDay: buildParseFn(parseTimeOfDayPatterns, 'any')
};

/**
 * @type {Locale}
 * @category Locales
 * @summary English locale (United States).
 * @language English
 * @iso-639-2 eng
 */
var locale = {
  formatDistance: formatDistance,
  formatLong: formatLong,
  formatRelative: formatRelative,
  localize: localize,
  match: match,
  options: {
    weekStartsOn: 0 /* Sunday */,
    firstWeekContainsDate: 1
  }
};

var MILLISECONDS_IN_DAY$1 = 86400000;

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function getUTCDayOfYear (dirtyDate, dirtyOptions) {
  var date = toDate(dirtyDate, dirtyOptions);
  var timestamp = date.getTime();
  date.setUTCMonth(0, 1);
  date.setUTCHours(0, 0, 0, 0);
  var startOfYearTimestamp = date.getTime();
  var difference = timestamp - startOfYearTimestamp;
  return Math.floor(difference / MILLISECONDS_IN_DAY$1) + 1
}

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function startOfUTCISOWeek (dirtyDate, dirtyOptions) {
  var weekStartsOn = 1;

  var date = toDate(dirtyDate, dirtyOptions);
  var day = date.getUTCDay();
  var diff = (day < weekStartsOn ? 7 : 0) + day - weekStartsOn;

  date.setUTCDate(date.getUTCDate() - diff);
  date.setUTCHours(0, 0, 0, 0);
  return date
}

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function getUTCISOWeekYear (dirtyDate, dirtyOptions) {
  var date = toDate(dirtyDate, dirtyOptions);
  var year = date.getUTCFullYear();

  var fourthOfJanuaryOfNextYear = new Date(0);
  fourthOfJanuaryOfNextYear.setUTCFullYear(year + 1, 0, 4);
  fourthOfJanuaryOfNextYear.setUTCHours(0, 0, 0, 0);
  var startOfNextYear = startOfUTCISOWeek(fourthOfJanuaryOfNextYear, dirtyOptions);

  var fourthOfJanuaryOfThisYear = new Date(0);
  fourthOfJanuaryOfThisYear.setUTCFullYear(year, 0, 4);
  fourthOfJanuaryOfThisYear.setUTCHours(0, 0, 0, 0);
  var startOfThisYear = startOfUTCISOWeek(fourthOfJanuaryOfThisYear, dirtyOptions);

  if (date.getTime() >= startOfNextYear.getTime()) {
    return year + 1
  } else if (date.getTime() >= startOfThisYear.getTime()) {
    return year
  } else {
    return year - 1
  }
}

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function startOfUTCISOWeekYear (dirtyDate, dirtyOptions) {
  var year = getUTCISOWeekYear(dirtyDate, dirtyOptions);
  var fourthOfJanuary = new Date(0);
  fourthOfJanuary.setUTCFullYear(year, 0, 4);
  fourthOfJanuary.setUTCHours(0, 0, 0, 0);
  var date = startOfUTCISOWeek(fourthOfJanuary, dirtyOptions);
  return date
}

var MILLISECONDS_IN_WEEK$2 = 604800000;

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function getUTCISOWeek (dirtyDate, dirtyOptions) {
  var date = toDate(dirtyDate, dirtyOptions);
  var diff = startOfUTCISOWeek(date, dirtyOptions).getTime() - startOfUTCISOWeekYear(date, dirtyOptions).getTime();

  // Round the number of days to the nearest integer
  // because the number of milliseconds in a week is not constant
  // (e.g. it's different in the week of the daylight saving time clock shift)
  return Math.round(diff / MILLISECONDS_IN_WEEK$2) + 1
}

var formatters = {
  // Month: 1, 2, ..., 12
  'M': function (date) {
    return date.getUTCMonth() + 1
  },

  // Month: 1st, 2nd, ..., 12th
  'Mo': function (date, options) {
    var month = date.getUTCMonth() + 1;
    return options.locale.localize.ordinalNumber(month, {unit: 'month'})
  },

  // Month: 01, 02, ..., 12
  'MM': function (date) {
    return addLeadingZeros(date.getUTCMonth() + 1, 2)
  },

  // Month: Jan, Feb, ..., Dec
  'MMM': function (date, options) {
    return options.locale.localize.month(date.getUTCMonth(), {type: 'short'})
  },

  // Month: January, February, ..., December
  'MMMM': function (date, options) {
    return options.locale.localize.month(date.getUTCMonth(), {type: 'long'})
  },

  // Quarter: 1, 2, 3, 4
  'Q': function (date) {
    return Math.ceil((date.getUTCMonth() + 1) / 3)
  },

  // Quarter: 1st, 2nd, 3rd, 4th
  'Qo': function (date, options) {
    var quarter = Math.ceil((date.getUTCMonth() + 1) / 3);
    return options.locale.localize.ordinalNumber(quarter, {unit: 'quarter'})
  },

  // Day of month: 1, 2, ..., 31
  'D': function (date) {
    return date.getUTCDate()
  },

  // Day of month: 1st, 2nd, ..., 31st
  'Do': function (date, options) {
    return options.locale.localize.ordinalNumber(date.getUTCDate(), {unit: 'dayOfMonth'})
  },

  // Day of month: 01, 02, ..., 31
  'DD': function (date) {
    return addLeadingZeros(date.getUTCDate(), 2)
  },

  // Day of year: 1, 2, ..., 366
  'DDD': function (date) {
    return getUTCDayOfYear(date)
  },

  // Day of year: 1st, 2nd, ..., 366th
  'DDDo': function (date, options) {
    return options.locale.localize.ordinalNumber(getUTCDayOfYear(date), {unit: 'dayOfYear'})
  },

  // Day of year: 001, 002, ..., 366
  'DDDD': function (date) {
    return addLeadingZeros(getUTCDayOfYear(date), 3)
  },

  // Day of week: Su, Mo, ..., Sa
  'dd': function (date, options) {
    return options.locale.localize.weekday(date.getUTCDay(), {type: 'narrow'})
  },

  // Day of week: Sun, Mon, ..., Sat
  'ddd': function (date, options) {
    return options.locale.localize.weekday(date.getUTCDay(), {type: 'short'})
  },

  // Day of week: Sunday, Monday, ..., Saturday
  'dddd': function (date, options) {
    return options.locale.localize.weekday(date.getUTCDay(), {type: 'long'})
  },

  // Day of week: 0, 1, ..., 6
  'd': function (date) {
    return date.getUTCDay()
  },

  // Day of week: 0th, 1st, 2nd, ..., 6th
  'do': function (date, options) {
    return options.locale.localize.ordinalNumber(date.getUTCDay(), {unit: 'dayOfWeek'})
  },

  // Day of ISO week: 1, 2, ..., 7
  'E': function (date) {
    return date.getUTCDay() || 7
  },

  // ISO week: 1, 2, ..., 53
  'W': function (date) {
    return getUTCISOWeek(date)
  },

  // ISO week: 1st, 2nd, ..., 53th
  'Wo': function (date, options) {
    return options.locale.localize.ordinalNumber(getUTCISOWeek(date), {unit: 'isoWeek'})
  },

  // ISO week: 01, 02, ..., 53
  'WW': function (date) {
    return addLeadingZeros(getUTCISOWeek(date), 2)
  },

  // Year: 00, 01, ..., 99
  'YY': function (date) {
    return addLeadingZeros(date.getUTCFullYear(), 4).substr(2)
  },

  // Year: 1900, 1901, ..., 2099
  'YYYY': function (date) {
    return addLeadingZeros(date.getUTCFullYear(), 4)
  },

  // ISO week-numbering year: 00, 01, ..., 99
  'GG': function (date) {
    return String(getUTCISOWeekYear(date)).substr(2)
  },

  // ISO week-numbering year: 1900, 1901, ..., 2099
  'GGGG': function (date) {
    return getUTCISOWeekYear(date)
  },

  // Hour: 0, 1, ... 23
  'H': function (date) {
    return date.getUTCHours()
  },

  // Hour: 00, 01, ..., 23
  'HH': function (date) {
    return addLeadingZeros(date.getUTCHours(), 2)
  },

  // Hour: 1, 2, ..., 12
  'h': function (date) {
    var hours = date.getUTCHours();
    if (hours === 0) {
      return 12
    } else if (hours > 12) {
      return hours % 12
    } else {
      return hours
    }
  },

  // Hour: 01, 02, ..., 12
  'hh': function (date) {
    return addLeadingZeros(formatters['h'](date), 2)
  },

  // Minute: 0, 1, ..., 59
  'm': function (date) {
    return date.getUTCMinutes()
  },

  // Minute: 00, 01, ..., 59
  'mm': function (date) {
    return addLeadingZeros(date.getUTCMinutes(), 2)
  },

  // Second: 0, 1, ..., 59
  's': function (date) {
    return date.getUTCSeconds()
  },

  // Second: 00, 01, ..., 59
  'ss': function (date) {
    return addLeadingZeros(date.getUTCSeconds(), 2)
  },

  // 1/10 of second: 0, 1, ..., 9
  'S': function (date) {
    return Math.floor(date.getUTCMilliseconds() / 100)
  },

  // 1/100 of second: 00, 01, ..., 99
  'SS': function (date) {
    return addLeadingZeros(Math.floor(date.getUTCMilliseconds() / 10), 2)
  },

  // Millisecond: 000, 001, ..., 999
  'SSS': function (date) {
    return addLeadingZeros(date.getUTCMilliseconds(), 3)
  },

  // Timezone: -01:00, +00:00, ... +12:00
  'Z': function (date, options) {
    var originalDate = options._originalDate || date;
    return formatTimezone(originalDate.getTimezoneOffset(), ':')
  },

  // Timezone: -0100, +0000, ... +1200
  'ZZ': function (date, options) {
    var originalDate = options._originalDate || date;
    return formatTimezone(originalDate.getTimezoneOffset())
  },

  // Seconds timestamp: 512969520
  'X': function (date, options) {
    var originalDate = options._originalDate || date;
    return Math.floor(originalDate.getTime() / 1000)
  },

  // Milliseconds timestamp: 512969520900
  'x': function (date, options) {
    var originalDate = options._originalDate || date;
    return originalDate.getTime()
  },

  // AM, PM
  'A': function (date, options) {
    return options.locale.localize.timeOfDay(date.getUTCHours(), {type: 'uppercase'})
  },

  // am, pm
  'a': function (date, options) {
    return options.locale.localize.timeOfDay(date.getUTCHours(), {type: 'lowercase'})
  },

  // a.m., p.m.
  'aa': function (date, options) {
    return options.locale.localize.timeOfDay(date.getUTCHours(), {type: 'long'})
  }
};

function formatTimezone (offset, delimeter) {
  delimeter = delimeter || '';
  var sign = offset > 0 ? '-' : '+';
  var absOffset = Math.abs(offset);
  var hours = Math.floor(absOffset / 60);
  var minutes = absOffset % 60;
  return sign + addLeadingZeros(hours, 2) + delimeter + addLeadingZeros(minutes, 2)
}

function addLeadingZeros (number, targetLength) {
  var output = Math.abs(number).toString();
  while (output.length < targetLength) {
    output = '0' + output;
  }
  return output
}

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function addUTCMinutes (dirtyDate, dirtyAmount, dirtyOptions) {
  var date = toDate(dirtyDate, dirtyOptions);
  var amount = Number(dirtyAmount);
  date.setUTCMinutes(date.getUTCMinutes() + amount);
  return date
}

var longFormattingTokensRegExp = /(\[[^[]*])|(\\)?(LTS|LT|LLLL|LLL|LL|L|llll|lll|ll|l)/g;
var defaultFormattingTokensRegExp = /(\[[^[]*])|(\\)?(x|ss|s|mm|m|hh|h|do|dddd|ddd|dd|d|aa|a|ZZ|Z|YYYY|YY|X|Wo|WW|W|SSS|SS|S|Qo|Q|Mo|MMMM|MMM|MM|M|HH|H|GGGG|GG|E|Do|DDDo|DDDD|DDD|DD|D|A|.)/g;

/**
 * @name format
 * @category Common Helpers
 * @summary Format the date.
 *
 * @description
 * Return the formatted date string in the given format.
 *
 * Accepted tokens:
 * | Unit                    | Token | Result examples                  |
 * |-------------------------|-------|----------------------------------|
 * | Month                   | M     | 1, 2, ..., 12                    |
 * |                         | Mo    | 1st, 2nd, ..., 12th              |
 * |                         | MM    | 01, 02, ..., 12                  |
 * |                         | MMM   | Jan, Feb, ..., Dec               |
 * |                         | MMMM  | January, February, ..., December |
 * | Quarter                 | Q     | 1, 2, 3, 4                       |
 * |                         | Qo    | 1st, 2nd, 3rd, 4th               |
 * | Day of month            | D     | 1, 2, ..., 31                    |
 * |                         | Do    | 1st, 2nd, ..., 31st              |
 * |                         | DD    | 01, 02, ..., 31                  |
 * | Day of year             | DDD   | 1, 2, ..., 366                   |
 * |                         | DDDo  | 1st, 2nd, ..., 366th             |
 * |                         | DDDD  | 001, 002, ..., 366               |
 * | Day of week             | d     | 0, 1, ..., 6                     |
 * |                         | do    | 0th, 1st, ..., 6th               |
 * |                         | dd    | Su, Mo, ..., Sa                  |
 * |                         | ddd   | Sun, Mon, ..., Sat               |
 * |                         | dddd  | Sunday, Monday, ..., Saturday    |
 * | Day of ISO week         | E     | 1, 2, ..., 7                     |
 * | ISO week                | W     | 1, 2, ..., 53                    |
 * |                         | Wo    | 1st, 2nd, ..., 53rd              |
 * |                         | WW    | 01, 02, ..., 53                  |
 * | Year                    | YY    | 00, 01, ..., 99                  |
 * |                         | YYYY  | 1900, 1901, ..., 2099            |
 * | ISO week-numbering year | GG    | 00, 01, ..., 99                  |
 * |                         | GGGG  | 1900, 1901, ..., 2099            |
 * | AM/PM                   | A     | AM, PM                           |
 * |                         | a     | am, pm                           |
 * |                         | aa    | a.m., p.m.                       |
 * | Hour                    | H     | 0, 1, ... 23                     |
 * |                         | HH    | 00, 01, ... 23                   |
 * |                         | h     | 1, 2, ..., 12                    |
 * |                         | hh    | 01, 02, ..., 12                  |
 * | Minute                  | m     | 0, 1, ..., 59                    |
 * |                         | mm    | 00, 01, ..., 59                  |
 * | Second                  | s     | 0, 1, ..., 59                    |
 * |                         | ss    | 00, 01, ..., 59                  |
 * | 1/10 of second          | S     | 0, 1, ..., 9                     |
 * | 1/100 of second         | SS    | 00, 01, ..., 99                  |
 * | Millisecond             | SSS   | 000, 001, ..., 999               |
 * | Timezone                | Z     | -01:00, +00:00, ... +12:00       |
 * |                         | ZZ    | -0100, +0000, ..., +1200         |
 * | Seconds timestamp       | X     | 512969520                        |
 * | Milliseconds timestamp  | x     | 512969520900                     |
 * | Long format             | LT    | 05:30 a.m.                       |
 * |                         | LTS   | 05:30:15 a.m.                    |
 * |                         | L     | 07/02/1995                       |
 * |                         | l     | 7/2/1995                         |
 * |                         | LL    | July 2 1995                      |
 * |                         | ll    | Jul 2 1995                       |
 * |                         | LLL   | July 2 1995 05:30 a.m.           |
 * |                         | lll   | Jul 2 1995 05:30 a.m.            |
 * |                         | LLLL  | Sunday, July 2 1995 05:30 a.m.   |
 * |                         | llll  | Sun, Jul 2 1995 05:30 a.m.       |
 *
 * The characters wrapped in square brackets are escaped.
 *
 * The result may vary by locale.
 *
 * @param {Date|String|Number} date - the original date
 * @param {String} format - the string of tokens
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale}
 * @returns {String} the formatted date string
 * @throws {TypeError} 2 arguments required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 * @throws {RangeError} `options.locale` must contain `localize` property
 * @throws {RangeError} `options.locale` must contain `formatLong` property
 *
 * @example
 * // Represent 11 February 2014 in middle-endian format:
 * var result = format(
 *   new Date(2014, 1, 11),
 *   'MM/DD/YYYY'
 * )
 * //=> '02/11/2014'
 *
 * @example
 * // Represent 2 July 2014 in Esperanto:
 * import { eoLocale } from 'date-fns/locale/eo'
 * var result = format(
 *   new Date(2014, 6, 2),
 *   'Do [de] MMMM YYYY',
 *   {locale: eoLocale}
 * )
 * //=> '2-a de julio 2014'
 */
function format (dirtyDate, dirtyFormatStr, dirtyOptions) {
  if (arguments.length < 2) {
    throw new TypeError('2 arguments required, but only ' + arguments.length + ' present')
  }

  var formatStr = String(dirtyFormatStr);
  var options = dirtyOptions || {};

  var locale$$1 = options.locale || locale;

  if (!locale$$1.localize) {
    throw new RangeError('locale must contain localize property')
  }

  if (!locale$$1.formatLong) {
    throw new RangeError('locale must contain formatLong property')
  }

  var localeFormatters = locale$$1.formatters || {};
  var formattingTokensRegExp = locale$$1.formattingTokensRegExp || defaultFormattingTokensRegExp;
  var formatLong = locale$$1.formatLong;

  var originalDate = toDate(dirtyDate, options);

  if (!isValid(originalDate, options)) {
    return 'Invalid Date'
  }

  // Convert the date in system timezone to the same date in UTC+00:00 timezone.
  // This ensures that when UTC functions will be implemented, locales will be compatible with them.
  // See an issue about UTC functions: https://github.com/date-fns/date-fns/issues/376
  var timezoneOffset = originalDate.getTimezoneOffset();
  var utcDate = addUTCMinutes(originalDate, -timezoneOffset, options);

  var formatterOptions = cloneObject(options);
  formatterOptions.locale = locale$$1;
  formatterOptions.formatters = formatters;

  // When UTC functions will be implemented, options._originalDate will likely be a part of public API.
  // Right now, please don't use it in locales. If you have to use an original date,
  // please restore it from `date`, adding a timezone offset to it.
  formatterOptions._originalDate = originalDate;

  var result = formatStr
    .replace(longFormattingTokensRegExp, function (substring) {
      if (substring[0] === '[') {
        return substring
      }

      if (substring[0] === '\\') {
        return cleanEscapedString(substring)
      }

      return formatLong(substring)
    })
    .replace(formattingTokensRegExp, function (substring) {
      var formatter = localeFormatters[substring] || formatters[substring];

      if (formatter) {
        return formatter(utcDate, formatterOptions)
      } else {
        return cleanEscapedString(substring)
      }
    });

  return result
}

function cleanEscapedString (input) {
  if (input.match(/\[[\s\S]/)) {
    return input.replace(/^\[|]$/g, '')
  }
  return input.replace(/\\/g, '')
}

/**
 * @name subMinutes
 * @category Minute Helpers
 * @summary Subtract the specified number of minutes from the given date.
 *
 * @description
 * Subtract the specified number of minutes from the given date.
 *
 * @param {Date|String|Number} date - the date to be changed
 * @param {Number} amount - the amount of minutes to be subtracted
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @returns {Date} the new date with the mintues subtracted
 * @throws {TypeError} 2 arguments required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 *
 * @example
 * // Subtract 30 minutes from 10 July 2014 12:00:00:
 * var result = subMinutes(new Date(2014, 6, 10, 12, 0), 30)
 * //=> Thu Jul 10 2014 11:30:00
 */
function subMinutes (dirtyDate, dirtyAmount, dirtyOptions) {
  if (arguments.length < 2) {
    throw new TypeError('2 arguments required, but only ' + arguments.length + ' present')
  }

  var amount = Number(dirtyAmount);
  return addMinutes(dirtyDate, -amount, dirtyOptions)
}

/**
 * @name isAfter
 * @category Common Helpers
 * @summary Is the first date after the second one?
 *
 * @description
 * Is the first date after the second one?
 *
 * @param {Date|String|Number} date - the date that should be after the other one to return true
 * @param {Date|String|Number} dateToCompare - the date to compare with
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @returns {Boolean} the first date is after the second date
 * @throws {TypeError} 2 arguments required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 *
 * @example
 * // Is 10 July 1989 after 11 February 1987?
 * var result = isAfter(new Date(1989, 6, 10), new Date(1987, 1, 11))
 * //=> true
 */
function isAfter (dirtyDate, dirtyDateToCompare, dirtyOptions) {
  if (arguments.length < 2) {
    throw new TypeError('2 arguments required, but only ' + arguments.length + ' present')
  }

  var date = toDate(dirtyDate, dirtyOptions);
  var dateToCompare = toDate(dirtyDateToCompare, dirtyOptions);
  return date.getTime() > dateToCompare.getTime()
}

/**
 * @name isBefore
 * @category Common Helpers
 * @summary Is the first date before the second one?
 *
 * @description
 * Is the first date before the second one?
 *
 * @param {Date|String|Number} date - the date that should be before the other one to return true
 * @param {Date|String|Number} dateToCompare - the date to compare with
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @returns {Boolean} the first date is before the second date
 * @throws {TypeError} 2 arguments required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 *
 * @example
 * // Is 10 July 1989 before 11 February 1987?
 * var result = isBefore(new Date(1989, 6, 10), new Date(1987, 1, 11))
 * //=> false
 */
function isBefore (dirtyDate, dirtyDateToCompare, dirtyOptions) {
  if (arguments.length < 2) {
    throw new TypeError('2 arguments required, but only ' + arguments.length + ' present')
  }

  var date = toDate(dirtyDate, dirtyOptions);
  var dateToCompare = toDate(dirtyDateToCompare, dirtyOptions);
  return date.getTime() < dateToCompare.getTime()
}

/**
 * @name isEqual
 * @category Common Helpers
 * @summary Are the given dates equal?
 *
 * @description
 * Are the given dates equal?
 *
 * @param {Date|String|Number} dateLeft - the first date to compare
 * @param {Date|String|Number} dateRight - the second date to compare
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @returns {Boolean} the dates are equal
 * @throws {TypeError} 2 arguments required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 *
 * @example
 * // Are 2 July 2014 06:30:45.000 and 2 July 2014 06:30:45.500 equal?
 * var result = isEqual(
 *   new Date(2014, 6, 2, 6, 30, 45, 0)
 *   new Date(2014, 6, 2, 6, 30, 45, 500)
 * )
 * //=> false
 */
function isEqual (dirtyLeftDate, dirtyRightDate, dirtyOptions) {
  if (arguments.length < 2) {
    throw new TypeError('2 arguments required, but only ' + arguments.length + ' present')
  }

  var dateLeft = toDate(dirtyLeftDate, dirtyOptions);
  var dateRight = toDate(dirtyRightDate, dirtyOptions);
  return dateLeft.getTime() === dateRight.getTime()
}

var patterns$1 = {
  'M': /^(1[0-2]|0?\d)/, // 0 to 12
  'D': /^(3[0-1]|[0-2]?\d)/, // 0 to 31
  'DDD': /^(36[0-6]|3[0-5]\d|[0-2]?\d?\d)/, // 0 to 366
  'W': /^(5[0-3]|[0-4]?\d)/, // 0 to 53
  'YYYY': /^(\d{1,4})/, // 0 to 9999
  'H': /^(2[0-3]|[0-1]?\d)/, // 0 to 23
  'm': /^([0-5]?\d)/, // 0 to 59
  'Z': /^([+-])(\d{2}):(\d{2})/,
  'ZZ': /^([+-])(\d{2})(\d{2})/,
  singleDigit: /^(\d)/,
  twoDigits: /^(\d{2})/,
  threeDigits: /^(\d{3})/,
  fourDigits: /^(\d{4})/,
  anyDigits: /^(\d+)/
};

function parseDecimal$1 (matchResult) {
  return parseInt(matchResult[1], 10)
}

var parsers = {
  // Year: 00, 01, ..., 99
  'YY': {
    unit: 'twoDigitYear',
    match: patterns$1.twoDigits,
    parse: function (matchResult) {
      return parseDecimal$1(matchResult)
    }
  },

  // Year: 1900, 1901, ..., 2099
  'YYYY': {
    unit: 'year',
    match: patterns$1.YYYY,
    parse: parseDecimal$1
  },

  // ISO week-numbering year: 00, 01, ..., 99
  'GG': {
    unit: 'isoYear',
    match: patterns$1.twoDigits,
    parse: function (matchResult) {
      return parseDecimal$1(matchResult) + 1900
    }
  },

  // ISO week-numbering year: 1900, 1901, ..., 2099
  'GGGG': {
    unit: 'isoYear',
    match: patterns$1.YYYY,
    parse: parseDecimal$1
  },

  // Quarter: 1, 2, 3, 4
  'Q': {
    unit: 'quarter',
    match: patterns$1.singleDigit,
    parse: parseDecimal$1
  },

  // Ordinal quarter
  'Qo': {
    unit: 'quarter',
    match: function (string, options) {
      return options.locale.match.ordinalNumbers(string, {unit: 'quarter'})
    },
    parse: function (matchResult, options) {
      return options.locale.match.ordinalNumber(matchResult, {unit: 'quarter'})
    }
  },

  // Month: 1, 2, ..., 12
  'M': {
    unit: 'month',
    match: patterns$1.M,
    parse: function (matchResult) {
      return parseDecimal$1(matchResult) - 1
    }
  },

  // Ordinal month
  'Mo': {
    unit: 'month',
    match: function (string, options) {
      return options.locale.match.ordinalNumbers(string, {unit: 'month'})
    },
    parse: function (matchResult, options) {
      return options.locale.match.ordinalNumber(matchResult, {unit: 'month'}) - 1
    }
  },

  // Month: 01, 02, ..., 12
  'MM': {
    unit: 'month',
    match: patterns$1.twoDigits,
    parse: function (matchResult) {
      return parseDecimal$1(matchResult) - 1
    }
  },

  // Month: Jan, Feb, ..., Dec
  'MMM': {
    unit: 'month',
    match: function (string, options) {
      return options.locale.match.months(string, {type: 'short'})
    },
    parse: function (matchResult, options) {
      return options.locale.match.month(matchResult, {type: 'short'})
    }
  },

  // Month: January, February, ..., December
  'MMMM': {
    unit: 'month',
    match: function (string, options) {
      return options.locale.match.months(string, {type: 'long'}) ||
        options.locale.match.months(string, {type: 'short'})
    },
    parse: function (matchResult, options) {
      var parseResult = options.locale.match.month(matchResult, {type: 'long'});

      if (parseResult == null) {
        parseResult = options.locale.match.month(matchResult, {type: 'short'});
      }

      return parseResult
    }
  },

  // ISO week: 1, 2, ..., 53
  'W': {
    unit: 'isoWeek',
    match: patterns$1.W,
    parse: parseDecimal$1
  },

  // Ordinal ISO week
  'Wo': {
    unit: 'isoWeek',
    match: function (string, options) {
      return options.locale.match.ordinalNumbers(string, {unit: 'isoWeek'})
    },
    parse: function (matchResult, options) {
      return options.locale.match.ordinalNumber(matchResult, {unit: 'isoWeek'})
    }
  },

  // ISO week: 01, 02, ..., 53
  'WW': {
    unit: 'isoWeek',
    match: patterns$1.twoDigits,
    parse: parseDecimal$1
  },

  // Day of week: 0, 1, ..., 6
  'd': {
    unit: 'dayOfWeek',
    match: patterns$1.singleDigit,
    parse: parseDecimal$1
  },

  // Ordinal day of week
  'do': {
    unit: 'dayOfWeek',
    match: function (string, options) {
      return options.locale.match.ordinalNumbers(string, {unit: 'dayOfWeek'})
    },
    parse: function (matchResult, options) {
      return options.locale.match.ordinalNumber(matchResult, {unit: 'dayOfWeek'})
    }
  },

  // Day of week: Su, Mo, ..., Sa
  'dd': {
    unit: 'dayOfWeek',
    match: function (string, options) {
      return options.locale.match.weekdays(string, {type: 'narrow'})
    },
    parse: function (matchResult, options) {
      return options.locale.match.weekday(matchResult, {type: 'narrow'})
    }
  },

  // Day of week: Sun, Mon, ..., Sat
  'ddd': {
    unit: 'dayOfWeek',
    match: function (string, options) {
      return options.locale.match.weekdays(string, {type: 'short'}) ||
        options.locale.match.weekdays(string, {type: 'narrow'})
    },
    parse: function (matchResult, options) {
      var parseResult = options.locale.match.weekday(matchResult, {type: 'short'});

      if (parseResult == null) {
        parseResult = options.locale.match.weekday(matchResult, {type: 'narrow'});
      }

      return parseResult
    }
  },

  // Day of week: Sunday, Monday, ..., Saturday
  'dddd': {
    unit: 'dayOfWeek',
    match: function (string, options) {
      return options.locale.match.weekdays(string, {type: 'long'}) ||
        options.locale.match.weekdays(string, {type: 'short'}) ||
        options.locale.match.weekdays(string, {type: 'narrow'})
    },
    parse: function (matchResult, options) {
      var parseResult = options.locale.match.weekday(matchResult, {type: 'long'});

      if (parseResult == null) {
        parseResult = options.locale.match.weekday(matchResult, {type: 'short'});

        if (parseResult == null) {
          parseResult = options.locale.match.weekday(matchResult, {type: 'narrow'});
        }
      }

      return parseResult
    }
  },

  // Day of ISO week: 1, 2, ..., 7
  'E': {
    unit: 'dayOfISOWeek',
    match: patterns$1.singleDigit,
    parse: function (matchResult) {
      return parseDecimal$1(matchResult)
    }
  },

  // Day of month: 1, 2, ..., 31
  'D': {
    unit: 'dayOfMonth',
    match: patterns$1.D,
    parse: parseDecimal$1
  },

  // Ordinal day of month
  'Do': {
    unit: 'dayOfMonth',
    match: function (string, options) {
      return options.locale.match.ordinalNumbers(string, {unit: 'dayOfMonth'})
    },
    parse: function (matchResult, options) {
      return options.locale.match.ordinalNumber(matchResult, {unit: 'dayOfMonth'})
    }
  },

  // Day of month: 01, 02, ..., 31
  'DD': {
    unit: 'dayOfMonth',
    match: patterns$1.twoDigits,
    parse: parseDecimal$1
  },

  // Day of year: 1, 2, ..., 366
  'DDD': {
    unit: 'dayOfYear',
    match: patterns$1.DDD,
    parse: parseDecimal$1
  },

  // Ordinal day of year
  'DDDo': {
    unit: 'dayOfYear',
    match: function (string, options) {
      return options.locale.match.ordinalNumbers(string, {unit: 'dayOfYear'})
    },
    parse: function (matchResult, options) {
      return options.locale.match.ordinalNumber(matchResult, {unit: 'dayOfYear'})
    }
  },

  // Day of year: 001, 002, ..., 366
  'DDDD': {
    unit: 'dayOfYear',
    match: patterns$1.threeDigits,
    parse: parseDecimal$1
  },

  // AM, PM
  'A': {
    unit: 'timeOfDay',
    match: function (string, options) {
      return options.locale.match.timesOfDay(string, {type: 'short'})
    },
    parse: function (matchResult, options) {
      return options.locale.match.timeOfDay(matchResult, {type: 'short'})
    }
  },

  // a.m., p.m.
  'aa': {
    unit: 'timeOfDay',
    match: function (string, options) {
      return options.locale.match.timesOfDay(string, {type: 'long'}) ||
        options.locale.match.timesOfDay(string, {type: 'short'})
    },
    parse: function (matchResult, options) {
      var parseResult = options.locale.match.timeOfDay(matchResult, {type: 'long'});

      if (parseResult == null) {
        parseResult = options.locale.match.timeOfDay(matchResult, {type: 'short'});
      }

      return parseResult
    }
  },

  // Hour: 0, 1, ... 23
  'H': {
    unit: 'hours',
    match: patterns$1.H,
    parse: parseDecimal$1
  },

  // Hour: 00, 01, ..., 23
  'HH': {
    unit: 'hours',
    match: patterns$1.twoDigits,
    parse: parseDecimal$1
  },

  // Hour: 1, 2, ..., 12
  'h': {
    unit: 'timeOfDayHours',
    match: patterns$1.M,
    parse: parseDecimal$1
  },

  // Hour: 01, 02, ..., 12
  'hh': {
    unit: 'timeOfDayHours',
    match: patterns$1.twoDigits,
    parse: parseDecimal$1
  },

  // Minute: 0, 1, ..., 59
  'm': {
    unit: 'minutes',
    match: patterns$1.m,
    parse: parseDecimal$1
  },

  // Minute: 00, 01, ..., 59
  'mm': {
    unit: 'minutes',
    match: patterns$1.twoDigits,
    parse: parseDecimal$1
  },

  // Second: 0, 1, ..., 59
  's': {
    unit: 'seconds',
    match: patterns$1.m,
    parse: parseDecimal$1
  },

  // Second: 00, 01, ..., 59
  'ss': {
    unit: 'seconds',
    match: patterns$1.twoDigits,
    parse: parseDecimal$1
  },

  // 1/10 of second: 0, 1, ..., 9
  'S': {
    unit: 'milliseconds',
    match: patterns$1.singleDigit,
    parse: function (matchResult) {
      return parseDecimal$1(matchResult) * 100
    }
  },

  // 1/100 of second: 00, 01, ..., 99
  'SS': {
    unit: 'milliseconds',
    match: patterns$1.twoDigits,
    parse: function (matchResult) {
      return parseDecimal$1(matchResult) * 10
    }
  },

  // Millisecond: 000, 001, ..., 999
  'SSS': {
    unit: 'milliseconds',
    match: patterns$1.threeDigits,
    parse: parseDecimal$1
  },

  // Timezone: -01:00, +00:00, ... +12:00
  'Z': {
    unit: 'timezone',
    match: patterns$1.Z,
    parse: function (matchResult) {
      var sign = matchResult[1];
      var hours = parseInt(matchResult[2], 10);
      var minutes = parseInt(matchResult[3], 10);
      var absoluteOffset = hours * 60 + minutes;
      return (sign === '+') ? absoluteOffset : -absoluteOffset
    }
  },

  // Timezone: -0100, +0000, ... +1200
  'ZZ': {
    unit: 'timezone',
    match: patterns$1.ZZ,
    parse: function (matchResult) {
      var sign = matchResult[1];
      var hours = parseInt(matchResult[2], 10);
      var minutes = parseInt(matchResult[3], 10);
      var absoluteOffset = hours * 60 + minutes;
      return (sign === '+') ? absoluteOffset : -absoluteOffset
    }
  },

  // Seconds timestamp: 512969520
  'X': {
    unit: 'timestamp',
    match: patterns$1.anyDigits,
    parse: function (matchResult) {
      return parseDecimal$1(matchResult) * 1000
    }
  },

  // Milliseconds timestamp: 512969520900
  'x': {
    unit: 'timestamp',
    match: patterns$1.anyDigits,
    parse: parseDecimal$1
  }
};

parsers['a'] = parsers['A'];

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function setUTCDay (dirtyDate, dirtyDay, dirtyOptions) {
  var options = dirtyOptions || {};
  var locale = options.locale;
  var localeWeekStartsOn = locale && locale.options && locale.options.weekStartsOn;
  var defaultWeekStartsOn = localeWeekStartsOn === undefined ? 0 : Number(localeWeekStartsOn);
  var weekStartsOn = options.weekStartsOn === undefined ? defaultWeekStartsOn : Number(options.weekStartsOn);

  // Test if weekStartsOn is between 0 and 6 _and_ is not NaN
  if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) {
    throw new RangeError('weekStartsOn must be between 0 and 6 inclusively')
  }

  var date = toDate(dirtyDate, dirtyOptions);
  var day = Number(dirtyDay);

  var currentDay = date.getUTCDay();

  var remainder = day % 7;
  var dayIndex = (remainder + 7) % 7;

  var diff = (dayIndex < weekStartsOn ? 7 : 0) + day - currentDay;

  date.setUTCDate(date.getUTCDate() + diff);
  return date
}

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function setUTCISODay (dirtyDate, dirtyDay, dirtyOptions) {
  var day = Number(dirtyDay);

  if (day % 7 === 0) {
    day = day - 7;
  }

  var weekStartsOn = 1;
  var date = toDate(dirtyDate, dirtyOptions);
  var currentDay = date.getUTCDay();

  var remainder = day % 7;
  var dayIndex = (remainder + 7) % 7;

  var diff = (dayIndex < weekStartsOn ? 7 : 0) + day - currentDay;

  date.setUTCDate(date.getUTCDate() + diff);
  return date
}

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function setUTCISOWeek (dirtyDate, dirtyISOWeek, dirtyOptions) {
  var date = toDate(dirtyDate, dirtyOptions);
  var isoWeek = Number(dirtyISOWeek);
  var diff = getUTCISOWeek(date, dirtyOptions) - isoWeek;
  date.setUTCDate(date.getUTCDate() - diff * 7);
  return date
}

var MILLISECONDS_IN_DAY$3 = 86400000;

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function setUTCISOWeekYear (dirtyDate, dirtyISOYear, dirtyOptions) {
  var date = toDate(dirtyDate, dirtyOptions);
  var isoYear = Number(dirtyISOYear);
  var dateStartOfYear = startOfUTCISOWeekYear(date, dirtyOptions);
  var diff = Math.floor((date.getTime() - dateStartOfYear.getTime()) / MILLISECONDS_IN_DAY$3);
  var fourthOfJanuary = new Date(0);
  fourthOfJanuary.setUTCFullYear(isoYear, 0, 4);
  fourthOfJanuary.setUTCHours(0, 0, 0, 0);
  date = startOfUTCISOWeekYear(fourthOfJanuary, dirtyOptions);
  date.setUTCDate(date.getUTCDate() + diff);
  return date
}

var MILLISECONDS_IN_MINUTE$7 = 60000;

function setTimeOfDay (hours, timeOfDay) {
  var isAM = timeOfDay === 0;

  if (isAM) {
    if (hours === 12) {
      return 0
    }
  } else {
    if (hours !== 12) {
      return 12 + hours
    }
  }

  return hours
}

var units = {
  twoDigitYear: {
    priority: 10,
    set: function (dateValues, value) {
      var century = Math.floor(dateValues.date.getUTCFullYear() / 100);
      var year = century * 100 + value;
      dateValues.date.setUTCFullYear(year, 0, 1);
      dateValues.date.setUTCHours(0, 0, 0, 0);
      return dateValues
    }
  },

  year: {
    priority: 10,
    set: function (dateValues, value) {
      dateValues.date.setUTCFullYear(value, 0, 1);
      dateValues.date.setUTCHours(0, 0, 0, 0);
      return dateValues
    }
  },

  isoYear: {
    priority: 10,
    set: function (dateValues, value, options) {
      dateValues.date = startOfUTCISOWeekYear(setUTCISOWeekYear(dateValues.date, value, options), options);
      return dateValues
    }
  },

  quarter: {
    priority: 20,
    set: function (dateValues, value) {
      dateValues.date.setUTCMonth((value - 1) * 3, 1);
      dateValues.date.setUTCHours(0, 0, 0, 0);
      return dateValues
    }
  },

  month: {
    priority: 30,
    set: function (dateValues, value) {
      dateValues.date.setUTCMonth(value, 1);
      dateValues.date.setUTCHours(0, 0, 0, 0);
      return dateValues
    }
  },

  isoWeek: {
    priority: 40,
    set: function (dateValues, value, options) {
      dateValues.date = startOfUTCISOWeek(setUTCISOWeek(dateValues.date, value, options), options);
      return dateValues
    }
  },

  dayOfWeek: {
    priority: 50,
    set: function (dateValues, value, options) {
      dateValues.date = setUTCDay(dateValues.date, value, options);
      dateValues.date.setUTCHours(0, 0, 0, 0);
      return dateValues
    }
  },

  dayOfISOWeek: {
    priority: 50,
    set: function (dateValues, value, options) {
      dateValues.date = setUTCISODay(dateValues.date, value, options);
      dateValues.date.setUTCHours(0, 0, 0, 0);
      return dateValues
    }
  },

  dayOfMonth: {
    priority: 50,
    set: function (dateValues, value) {
      dateValues.date.setUTCDate(value);
      dateValues.date.setUTCHours(0, 0, 0, 0);
      return dateValues
    }
  },

  dayOfYear: {
    priority: 50,
    set: function (dateValues, value) {
      dateValues.date.setUTCMonth(0, value);
      dateValues.date.setUTCHours(0, 0, 0, 0);
      return dateValues
    }
  },

  timeOfDay: {
    priority: 60,
    set: function (dateValues, value, options) {
      dateValues.timeOfDay = value;
      return dateValues
    }
  },

  hours: {
    priority: 70,
    set: function (dateValues, value, options) {
      dateValues.date.setUTCHours(value, 0, 0, 0);
      return dateValues
    }
  },

  timeOfDayHours: {
    priority: 70,
    set: function (dateValues, value, options) {
      var timeOfDay = dateValues.timeOfDay;
      if (timeOfDay != null) {
        value = setTimeOfDay(value, timeOfDay);
      }
      dateValues.date.setUTCHours(value, 0, 0, 0);
      return dateValues
    }
  },

  minutes: {
    priority: 80,
    set: function (dateValues, value) {
      dateValues.date.setUTCMinutes(value, 0, 0);
      return dateValues
    }
  },

  seconds: {
    priority: 90,
    set: function (dateValues, value) {
      dateValues.date.setUTCSeconds(value, 0);
      return dateValues
    }
  },

  milliseconds: {
    priority: 100,
    set: function (dateValues, value) {
      dateValues.date.setUTCMilliseconds(value);
      return dateValues
    }
  },

  timezone: {
    priority: 110,
    set: function (dateValues, value) {
      dateValues.date = new Date(dateValues.date.getTime() - value * MILLISECONDS_IN_MINUTE$7);
      return dateValues
    }
  },

  timestamp: {
    priority: 120,
    set: function (dateValues, value) {
      dateValues.date = new Date(value);
      return dateValues
    }
  }
};

var TIMEZONE_UNIT_PRIORITY = 110;
var MILLISECONDS_IN_MINUTE$6 = 60000;

var longFormattingTokensRegExp$1 = /(\[[^[]*])|(\\)?(LTS|LT|LLLL|LLL|LL|L|llll|lll|ll|l)/g;
var defaultParsingTokensRegExp = /(\[[^[]*])|(\\)?(x|ss|s|mm|m|hh|h|do|dddd|ddd|dd|d|aa|a|ZZ|Z|YYYY|YY|X|Wo|WW|W|SSS|SS|S|Qo|Q|Mo|MMMM|MMM|MM|M|HH|H|GGGG|GG|E|Do|DDDo|DDDD|DDD|DD|D|A|.)/g;

/**
 * @name parse
 * @category Common Helpers
 * @summary Parse the date.
 *
 * @description
 * Return the date parsed from string using the given format.
 *
 * Accepted format tokens:
 * | Unit                    | Priority | Token | Input examples                   |
 * |-------------------------|----------|-------|----------------------------------|
 * | Year                    | 10       | YY    | 00, 01, ..., 99                  |
 * |                         |          | YYYY  | 1900, 1901, ..., 2099            |
 * | ISO week-numbering year | 10       | GG    | 00, 01, ..., 99                  |
 * |                         |          | GGGG  | 1900, 1901, ..., 2099            |
 * | Quarter                 | 20       | Q     | 1, 2, 3, 4                       |
 * |                         |          | Qo    | 1st, 2nd, 3rd, 4th               |
 * | Month                   | 30       | M     | 1, 2, ..., 12                    |
 * |                         |          | Mo    | 1st, 2nd, ..., 12th              |
 * |                         |          | MM    | 01, 02, ..., 12                  |
 * |                         |          | MMM   | Jan, Feb, ..., Dec               |
 * |                         |          | MMMM  | January, February, ..., December |
 * | ISO week                | 40       | W     | 1, 2, ..., 53                    |
 * |                         |          | Wo    | 1st, 2nd, ..., 53rd              |
 * |                         |          | WW    | 01, 02, ..., 53                  |
 * | Day of week             | 50       | d     | 0, 1, ..., 6                     |
 * |                         |          | do    | 0th, 1st, ..., 6th               |
 * |                         |          | dd    | Su, Mo, ..., Sa                  |
 * |                         |          | ddd   | Sun, Mon, ..., Sat               |
 * |                         |          | dddd  | Sunday, Monday, ..., Saturday    |
 * | Day of ISO week         | 50       | E     | 1, 2, ..., 7                     |
 * | Day of month            | 50       | D     | 1, 2, ..., 31                    |
 * |                         |          | Do    | 1st, 2nd, ..., 31st              |
 * |                         |          | DD    | 01, 02, ..., 31                  |
 * | Day of year             | 50       | DDD   | 1, 2, ..., 366                   |
 * |                         |          | DDDo  | 1st, 2nd, ..., 366th             |
 * |                         |          | DDDD  | 001, 002, ..., 366               |
 * | Time of day             | 60       | A     | AM, PM                           |
 * |                         |          | a     | am, pm                           |
 * |                         |          | aa    | a.m., p.m.                       |
 * | Hour                    | 70       | H     | 0, 1, ... 23                     |
 * |                         |          | HH    | 00, 01, ... 23                   |
 * | Time of day hour        | 70       | h     | 1, 2, ..., 12                    |
 * |                         |          | hh    | 01, 02, ..., 12                  |
 * | Minute                  | 80       | m     | 0, 1, ..., 59                    |
 * |                         |          | mm    | 00, 01, ..., 59                  |
 * | Second                  | 90       | s     | 0, 1, ..., 59                    |
 * |                         |          | ss    | 00, 01, ..., 59                  |
 * | 1/10 of second          | 100      | S     | 0, 1, ..., 9                     |
 * | 1/100 of second         | 100      | SS    | 00, 01, ..., 99                  |
 * | Millisecond             | 100      | SSS   | 000, 001, ..., 999               |
 * | Timezone                | 110      | Z     | -01:00, +00:00, ... +12:00       |
 * |                         |          | ZZ    | -0100, +0000, ..., +1200         |
 * | Seconds timestamp       | 120      | X     | 512969520                        |
 * | Milliseconds timestamp  | 120      | x     | 512969520900                     |
 *
 * Values will be assigned to the date in the ascending order of its unit's priority.
 * Units of an equal priority overwrite each other in the order of appearance.
 *
 * If no values of higher priority are parsed (e.g. when parsing string 'January 1st' without a year),
 * the values will be taken from 3rd argument `baseDate` which works as a context of parsing.
 *
 * `baseDate` must be passed for correct work of the function.
 * If you're not sure which `baseDate` to supply, create a new instance of Date:
 * `parse('02/11/2014', 'MM/DD/YYYY', new Date())`
 * In this case parsing will be done in the context of the current date.
 * If `baseDate` is `Invalid Date` or a value not convertible to valid `Date`,
 * then `Invalid Date` will be returned.
 *
 * Also, `parse` unfolds long formats like those in [format]{@link https://date-fns.org/docs/format}:
 * | Token | Input examples                 |
 * |-------|--------------------------------|
 * | LT    | 05:30 a.m.                     |
 * | LTS   | 05:30:15 a.m.                  |
 * | L     | 07/02/1995                     |
 * | l     | 7/2/1995                       |
 * | LL    | July 2 1995                    |
 * | ll    | Jul 2 1995                     |
 * | LLL   | July 2 1995 05:30 a.m.         |
 * | lll   | Jul 2 1995 05:30 a.m.          |
 * | LLLL  | Sunday, July 2 1995 05:30 a.m. |
 * | llll  | Sun, Jul 2 1995 05:30 a.m.     |
 *
 * The characters wrapped in square brackets in the format string are escaped.
 *
 * The result may vary by locale.
 *
 * If `formatString` matches with `dateString` but does not provides tokens, `baseDate` will be returned.
 *
 * If parsing failed, `Invalid Date` will be returned.
 * Invalid Date is a Date, whose time value is NaN.
 * Time value of Date: http://es5.github.io/#x15.9.1.1
 *
 * @param {String} dateString - the string to parse
 * @param {String} formatString - the string of tokens
 * @param {Date|String|Number} baseDate - the date to took the missing higher priority values from
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale}
 * @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday)
 * @returns {Date} the parsed date
 * @throws {TypeError} 3 arguments required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 * @throws {RangeError} `options.weekStartsOn` must be between 0 and 6
 * @throws {RangeError} `options.locale` must contain `match` property
 * @throws {RangeError} `options.locale` must contain `formatLong` property
 *
 * @example
 * // Parse 11 February 2014 from middle-endian format:
 * var result = parse(
 *   '02/11/2014',
 *   'MM/DD/YYYY',
 *   new Date()
 * )
 * //=> Tue Feb 11 2014 00:00:00
 *
 * @example
 * // Parse 28th of February in English locale in the context of 2010 year:
 * import eoLocale from 'date-fns/locale/eo'
 * var result = parse(
 *   '28-a de februaro',
 *   'Do [de] MMMM',
 *   new Date(2010, 0, 1)
 *   {locale: eoLocale}
 * )
 * //=> Sun Feb 28 2010 00:00:00
 */
function parse (dirtyDateString, dirtyFormatString, dirtyBaseDate, dirtyOptions) {
  if (arguments.length < 3) {
    throw new TypeError('3 arguments required, but only ' + arguments.length + ' present')
  }

  var dateString = String(dirtyDateString);
  var options = dirtyOptions || {};

  var weekStartsOn = options.weekStartsOn === undefined ? 0 : Number(options.weekStartsOn);

  // Test if weekStartsOn is between 0 and 6 _and_ is not NaN
  if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) {
    throw new RangeError('weekStartsOn must be between 0 and 6 inclusively')
  }

  var locale$$1 = options.locale || locale;
  var localeParsers = locale$$1.parsers || {};
  var localeUnits = locale$$1.units || {};

  if (!locale$$1.match) {
    throw new RangeError('locale must contain match property')
  }

  if (!locale$$1.formatLong) {
    throw new RangeError('locale must contain formatLong property')
  }

  var formatString = String(dirtyFormatString)
    .replace(longFormattingTokensRegExp$1, function (substring) {
      if (substring[0] === '[') {
        return substring
      }

      if (substring[0] === '\\') {
        return cleanEscapedString$1(substring)
      }

      return locale$$1.formatLong(substring)
    });

  if (formatString === '') {
    if (dateString === '') {
      return toDate(dirtyBaseDate, options)
    } else {
      return new Date(NaN)
    }
  }

  var subFnOptions = cloneObject(options);
  subFnOptions.locale = locale$$1;

  var tokens = formatString.match(locale$$1.parsingTokensRegExp || defaultParsingTokensRegExp);
  var tokensLength = tokens.length;

  // If timezone isn't specified, it will be set to the system timezone
  var setters = [{
    priority: TIMEZONE_UNIT_PRIORITY,
    set: dateToSystemTimezone,
    index: 0
  }];

  var i;
  for (i = 0; i < tokensLength; i++) {
    var token = tokens[i];
    var parser = localeParsers[token] || parsers[token];
    if (parser) {
      var matchResult;

      if (parser.match instanceof RegExp) {
        matchResult = parser.match.exec(dateString);
      } else {
        matchResult = parser.match(dateString, subFnOptions);
      }

      if (!matchResult) {
        return new Date(NaN)
      }

      var unitName = parser.unit;
      var unit = localeUnits[unitName] || units[unitName];

      setters.push({
        priority: unit.priority,
        set: unit.set,
        value: parser.parse(matchResult, subFnOptions),
        index: setters.length
      });

      var substring = matchResult[0];
      dateString = dateString.slice(substring.length);
    } else {
      var head = tokens[i].match(/^\[.*]$/) ? tokens[i].replace(/^\[|]$/g, '') : tokens[i];
      if (dateString.indexOf(head) === 0) {
        dateString = dateString.slice(head.length);
      } else {
        return new Date(NaN)
      }
    }
  }

  var uniquePrioritySetters = setters
    .map(function (setter) {
      return setter.priority
    })
    .sort(function (a, b) {
      return a - b
    })
    .filter(function (priority, index, array) {
      return array.indexOf(priority) === index
    })
    .map(function (priority) {
      return setters
        .filter(function (setter) {
          return setter.priority === priority
        })
        .reverse()
    })
    .map(function (setterArray) {
      return setterArray[0]
    });

  var date = toDate(dirtyBaseDate, options);

  if (isNaN(date)) {
    return new Date(NaN)
  }

  // Convert the date in system timezone to the same date in UTC+00:00 timezone.
  // This ensures that when UTC functions will be implemented, locales will be compatible with them.
  // See an issue about UTC functions: https://github.com/date-fns/date-fns/issues/37
  var utcDate = subMinutes(date, date.getTimezoneOffset());

  var dateValues = {date: utcDate};

  var settersLength = uniquePrioritySetters.length;
  for (i = 0; i < settersLength; i++) {
    var setter = uniquePrioritySetters[i];
    dateValues = setter.set(dateValues, setter.value, subFnOptions);
  }

  return dateValues.date
}

function dateToSystemTimezone (dateValues) {
  var date = dateValues.date;
  var time = date.getTime();

  // Get the system timezone offset at (moment of time - offset)
  var offset = date.getTimezoneOffset();

  // Get the system timezone offset at the exact moment of time
  offset = new Date(time + offset * MILLISECONDS_IN_MINUTE$6).getTimezoneOffset();

  // Convert date in timezone "UTC+00:00" to the system timezone
  dateValues.date = new Date(time + offset * MILLISECONDS_IN_MINUTE$6);

  return dateValues
}

function cleanEscapedString$1 (input) {
  if (input.match(/\[[\s\S]/)) {
    return input.replace(/^\[|]$/g, '')
  }
  return input.replace(/\\/g, '')
}

// This file is generated automatically by `scripts/build/indices.js`. Please, don't change it.

// 

/**
 * Custom parse behavior on top of date-fns parse function.
 */
function parseDate$1 (date, format$$1) {
  if (typeof date !== 'string') {
    return isValid(date) ? date : null;
  }

  var parsed = parse(date, format$$1, new Date());

  // if date is not valid or the formatted output after parsing does not match
  // the string value passed in (avoids overflows)
  if (!isValid(parsed) || format(parsed, format$$1) !== date) {
    return null;
  }

  return parsed;
}

var after = function (value, ref) {
  var otherValue = ref[0];
  var inclusion = ref[1];
  var format = ref[2];

  if (typeof format === 'undefined') {
    format = inclusion;
    inclusion = false;
  }
  value = parseDate$1(value, format);
  otherValue = parseDate$1(otherValue, format);

  // if either is not valid.
  if (!value || !otherValue) {
    return false;
  }

  return isAfter(value, otherValue) || (inclusion && isEqual(value, otherValue));
};

/**
 * Some Alpha Regex helpers.
 * https://github.com/chriso/validator.js/blob/master/src/lib/alpha.js
 */

var alpha$1 = {
  en: /^[A-Z]*$/i,
  cs: /^[A-ZÁČĎÉĚÍŇÓŘŠŤÚŮÝŽ]*$/i,
  da: /^[A-ZÆØÅ]*$/i,
  de: /^[A-ZÄÖÜß]*$/i,
  es: /^[A-ZÁÉÍÑÓÚÜ]*$/i,
  fr: /^[A-ZÀÂÆÇÉÈÊËÏÎÔŒÙÛÜŸ]*$/i,
  lt: /^[A-ZĄČĘĖĮŠŲŪŽ]*$/i,
  nl: /^[A-ZÉËÏÓÖÜ]*$/i,
  hu: /^[A-ZÁÉÍÓÖŐÚÜŰ]*$/i,
  pl: /^[A-ZĄĆĘŚŁŃÓŻŹ]*$/i,
  pt: /^[A-ZÃÁÀÂÇÉÊÍÕÓÔÚÜ]*$/i,
  ru: /^[А-ЯЁ]*$/i,
  sk: /^[A-ZÁÄČĎÉÍĹĽŇÓŔŠŤÚÝŽ]*$/i,
  sr: /^[A-ZČĆŽŠĐ]*$/i,
  tr: /^[A-ZÇĞİıÖŞÜ]*$/i,
  uk: /^[А-ЩЬЮЯЄІЇҐ]*$/i,
  ar: /^[ءآأؤإئابةتثجحخدذرزسشصضطظعغفقكلمنهوىيًٌٍَُِّْٰ]*$/
};

var alphaSpaces = {
  en: /^[A-Z\s]*$/i,
  cs: /^[A-ZÁČĎÉĚÍŇÓŘŠŤÚŮÝŽ\s]*$/i,
  da: /^[A-ZÆØÅ\s]*$/i,
  de: /^[A-ZÄÖÜß\s]*$/i,
  es: /^[A-ZÁÉÍÑÓÚÜ\s]*$/i,
  fr: /^[A-ZÀÂÆÇÉÈÊËÏÎÔŒÙÛÜŸ\s]*$/i,
  lt: /^[A-ZĄČĘĖĮŠŲŪŽ\s]*$/i,
  nl: /^[A-ZÉËÏÓÖÜ\s]*$/i,
  hu: /^[A-ZÁÉÍÓÖŐÚÜŰ\s]*$/i,
  pl: /^[A-ZĄĆĘŚŁŃÓŻŹ\s]*$/i,
  pt: /^[A-ZÃÁÀÂÇÉÊÍÕÓÔÚÜ\s]*$/i,
  ru: /^[А-ЯЁ\s]*$/i,
  sk: /^[A-ZÁÄČĎÉÍĹĽŇÓŔŠŤÚÝŽ\s]*$/i,
  sr: /^[A-ZČĆŽŠĐ\s]*$/i,
  tr: /^[A-ZÇĞİıÖŞÜ\s]*$/i,
  uk: /^[А-ЩЬЮЯЄІЇҐ\s]*$/i,
  ar: /^[ءآأؤإئابةتثجحخدذرزسشصضطظعغفقكلمنهوىيًٌٍَُِّْٰ\s]*$/
};

var alphanumeric = {
  en: /^[0-9A-Z]*$/i,
  cs: /^[0-9A-ZÁČĎÉĚÍŇÓŘŠŤÚŮÝŽ]*$/i,
  da: /^[0-9A-ZÆØÅ]$/i,
  de: /^[0-9A-ZÄÖÜß]*$/i,
  es: /^[0-9A-ZÁÉÍÑÓÚÜ]*$/i,
  fr: /^[0-9A-ZÀÂÆÇÉÈÊËÏÎÔŒÙÛÜŸ]*$/i,
  lt: /^[0-9A-ZĄČĘĖĮŠŲŪŽ]*$/i,
  hu: /^[0-9A-ZÁÉÍÓÖŐÚÜŰ]*$/i,
  nl: /^[0-9A-ZÉËÏÓÖÜ]*$/i,
  pl: /^[0-9A-ZĄĆĘŚŁŃÓŻŹ]*$/i,
  pt: /^[0-9A-ZÃÁÀÂÇÉÊÍÕÓÔÚÜ]*$/i,
  ru: /^[0-9А-ЯЁ]*$/i,
  sk: /^[0-9A-ZÁÄČĎÉÍĹĽŇÓŔŠŤÚÝŽ]*$/i,
  sr: /^[0-9A-ZČĆŽŠĐ]*$/i,
  tr: /^[0-9A-ZÇĞİıÖŞÜ]*$/i,
  uk: /^[0-9А-ЩЬЮЯЄІЇҐ]*$/i,
  ar: /^[٠١٢٣٤٥٦٧٨٩0-9ءآأؤإئابةتثجحخدذرزسشصضطظعغفقكلمنهوىيًٌٍَُِّْٰ]*$/
};

var alphaDash = {
  en: /^[0-9A-Z_-]*$/i,
  cs: /^[0-9A-ZÁČĎÉĚÍŇÓŘŠŤÚŮÝŽ_-]*$/i,
  da: /^[0-9A-ZÆØÅ_-]*$/i,
  de: /^[0-9A-ZÄÖÜß_-]*$/i,
  es: /^[0-9A-ZÁÉÍÑÓÚÜ_-]*$/i,
  fr: /^[0-9A-ZÀÂÆÇÉÈÊËÏÎÔŒÙÛÜŸ_-]*$/i,
  lt: /^[0-9A-ZĄČĘĖĮŠŲŪŽ_-]*$/i,
  nl: /^[0-9A-ZÉËÏÓÖÜ_-]*$/i,
  hu: /^[0-9A-ZÁÉÍÓÖŐÚÜŰ_-]*$/i,
  pl: /^[0-9A-ZĄĆĘŚŁŃÓŻŹ_-]*$/i,
  pt: /^[0-9A-ZÃÁÀÂÇÉÊÍÕÓÔÚÜ_-]*$/i,
  ru: /^[0-9А-ЯЁ_-]*$/i,
  sk: /^[0-9A-ZÁÄČĎÉÍĹĽŇÓŔŠŤÚÝŽ_-]*$/i,
  sr: /^[0-9A-ZČĆŽŠĐ_-]*$/i,
  tr: /^[0-9A-ZÇĞİıÖŞÜ_-]*$/i,
  uk: /^[0-9А-ЩЬЮЯЄІЇҐ_-]*$/i,
  ar: /^[٠١٢٣٤٥٦٧٨٩0-9ءآأؤإئابةتثجحخدذرزسشصضطظعغفقكلمنهوىيًٌٍَُِّْٰ_-]*$/
};

var validate = function (value, ref) {
  if ( ref === void 0 ) ref = [];
  var locale = ref[0]; if ( locale === void 0 ) locale = null;

  if (Array.isArray(value)) {
    return value.every(function (val) { return validate(val, [locale]); });
  }

  // Match at least one locale.
  if (! locale) {
    return Object.keys(alpha$1).some(function (loc) { return alpha$1[loc].test(value); });
  }

  return (alpha$1[locale] || alpha$1.en).test(value);
};

var validate$1 = function (value, ref) {
  if ( ref === void 0 ) ref = [];
  var locale = ref[0]; if ( locale === void 0 ) locale = null;

  if (Array.isArray(value)) {
    return value.every(function (val) { return validate$1(val, [locale]); });
  }

  // Match at least one locale.
  if (! locale) {
    return Object.keys(alphaDash).some(function (loc) { return alphaDash[loc].test(value); });
  }

  return (alphaDash[locale] || alphaDash.en).test(value);
};

var validate$2 = function (value, ref) {
  if ( ref === void 0 ) ref = [];
  var locale = ref[0]; if ( locale === void 0 ) locale = null;

  if (Array.isArray(value)) {
    return value.every(function (val) { return validate$2(val, [locale]); });
  }

  // Match at least one locale.
  if (! locale) {
    return Object.keys(alphanumeric).some(function (loc) { return alphanumeric[loc].test(value); });
  }

  return (alphanumeric[locale] || alphanumeric.en).test(value);
};

var validate$3 = function (value, ref) {
  if ( ref === void 0 ) ref = [];
  var locale = ref[0]; if ( locale === void 0 ) locale = null;

  if (Array.isArray(value)) {
    return value.every(function (val) { return validate$3(val, [locale]); });
  }

  // Match at least one locale.
  if (! locale) {
    return Object.keys(alphaSpaces).some(function (loc) { return alphaSpaces[loc].test(value); });
  }

  return (alphaSpaces[locale] || alphaSpaces.en).test(value);
};

var before = function (value, ref) {
  var otherValue = ref[0];
  var inclusion = ref[1];
  var format = ref[2];

  if (typeof format === 'undefined') {
    format = inclusion;
    inclusion = false;
  }
  value = parseDate$1(value, format);
  otherValue = parseDate$1(otherValue, format);

  // if either is not valid.
  if (!value || !otherValue) {
    return false;
  }

  return isBefore(value, otherValue) || (inclusion && isEqual(value, otherValue));
};

var validate$4 = function (value, ref) {
  var min = ref[0];
  var max = ref[1];

  if (Array.isArray(value)) {
    return value.every(function (val) { return validate$4(val, [min, max]); });
  }

  return Number(min) <= value && Number(max) >= value;
};

var confirmed = function (value, other) { return String(value) === String(other); };

function unwrapExports (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

function createCommonjsModule(fn, module) {
	return module = { exports: {} }, fn(module, module.exports), module.exports;
}

var assertString_1 = createCommonjsModule(function (module, exports) {
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = assertString;
function assertString(input) {
  var isString = typeof input === 'string' || input instanceof String;

  if (!isString) {
    throw new TypeError('This library (validator.js) validates strings only');
  }
}
module.exports = exports['default'];
});

unwrapExports(assertString_1);

var isCreditCard_1 = createCommonjsModule(function (module, exports) {
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isCreditCard;



var _assertString2 = _interopRequireDefault(assertString_1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/* eslint-disable max-len */
var creditCard = /^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|(222[1-9]|22[3-9][0-9]|2[3-6][0-9]{2}|27[01][0-9]|2720)[0-9]{12}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11}|62[0-9]{14})$/;
/* eslint-enable max-len */

function isCreditCard(str) {
  (0, _assertString2.default)(str);
  var sanitized = str.replace(/[- ]+/g, '');
  if (!creditCard.test(sanitized)) {
    return false;
  }
  var sum = 0;
  var digit = void 0;
  var tmpNum = void 0;
  var shouldDouble = void 0;
  for (var i = sanitized.length - 1; i >= 0; i--) {
    digit = sanitized.substring(i, i + 1);
    tmpNum = parseInt(digit, 10);
    if (shouldDouble) {
      tmpNum *= 2;
      if (tmpNum >= 10) {
        sum += tmpNum % 10 + 1;
      } else {
        sum += tmpNum;
      }
    } else {
      sum += tmpNum;
    }
    shouldDouble = !shouldDouble;
  }
  return !!(sum % 10 === 0 ? sanitized : false);
}
module.exports = exports['default'];
});

var isCreditCard = unwrapExports(isCreditCard_1);

var credit_card = function (value) { return isCreditCard(String(value)); };

var validate$5 = function (value, ref) {
  if ( ref === void 0 ) ref = [];
  var decimals = ref[0]; if ( decimals === void 0 ) decimals = '*';
  var separator = ref[1]; if ( separator === void 0 ) separator = '.';

  if (Array.isArray(value)) {
    return value.every(function (val) { return validate$5(val, [decimals, separator]); });
  }

  if (value === null || value === undefined || value === '') {
    return true;
  }

  // if is 0.
  if (Number(decimals) === 0) {
    return /^-?\d*$/.test(value);
  }

  var regexPart = decimals === '*' ? '+' : ("{1," + decimals + "}");
  var regex = new RegExp(("^-?\\d*(\\" + separator + "\\d" + regexPart + ")?$"));

  if (! regex.test(value)) {
    return false;
  }

  var parsedValue = parseFloat(value);

  // eslint-disable-next-line
    return parsedValue === parsedValue;
};

var date_between = function (value, params) {
  var min;
  var max;
  var format;
  var inclusivity = '()';

  if (params.length > 3) {
    var assign;
    (assign = params, min = assign[0], max = assign[1], inclusivity = assign[2], format = assign[3]);
  } else {
    var assign$1;
    (assign$1 = params, min = assign$1[0], max = assign$1[1], format = assign$1[2]);
  }

  var minDate = parseDate$1(min, format);
  var maxDate = parseDate$1(max, format);
  var dateVal = parseDate$1(value, format);

  if (!minDate || !maxDate || !dateVal) {
    return false;
  }

  if (inclusivity === '()') {
    return isAfter(dateVal, minDate) && isBefore(dateVal, maxDate);
  }

  if (inclusivity === '(]') {
    return isAfter(dateVal, minDate) && (isEqual(dateVal, maxDate) || isBefore(dateVal, maxDate));
  }

  if (inclusivity === '[)') {
    return isBefore(dateVal, maxDate) && (isEqual(dateVal, minDate) || isAfter(dateVal, minDate));
  }

  return isEqual(dateVal, maxDate) || isEqual(dateVal, minDate) ||
        (isBefore(dateVal, maxDate) && isAfter(dateVal, minDate));
};

var date_format = function (value, ref) {
  var format = ref[0];

  return !!parseDate$1(value, format);
};

var validate$6 = function (value, ref) {
  var length = ref[0];

  if (Array.isArray(value)) {
    return value.every(function (val) { return validate$6(val, [length]); });
  }
  var strVal = String(value);

  return /^[0-9]*$/.test(strVal) && strVal.length === Number(length);
};

var validateImage = function (file, width, height) {
  var URL = window.URL || window.webkitURL;
  return new Promise(function (resolve) {
    var image = new Image();
    image.onerror = function () { return resolve({ valid: false }); };
    image.onload = function () { return resolve({
      valid: image.width === Number(width) && image.height === Number(height)
    }); };

    image.src = URL.createObjectURL(file);
  });
};

var dimensions = function (files, ref) {
  var width = ref[0];
  var height = ref[1];

  var list = [];
  for (var i = 0; i < files.length; i++) {
    // if file is not an image, reject.
    if (! /\.(jpg|svg|jpeg|png|bmp|gif)$/i.test(files[i].name)) {
      return false;
    }

    list.push(files[i]);
  }

  return Promise.all(list.map(function (file) { return validateImage(file, width, height); }));
};

var merge_1 = createCommonjsModule(function (module, exports) {
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = merge;
function merge() {
  var obj = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  var defaults = arguments[1];

  for (var key in defaults) {
    if (typeof obj[key] === 'undefined') {
      obj[key] = defaults[key];
    }
  }
  return obj;
}
module.exports = exports['default'];
});

unwrapExports(merge_1);

var isByteLength_1 = createCommonjsModule(function (module, exports) {
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

exports.default = isByteLength;



var _assertString2 = _interopRequireDefault(assertString_1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/* eslint-disable prefer-rest-params */
function isByteLength(str, options) {
  (0, _assertString2.default)(str);
  var min = void 0;
  var max = void 0;
  if ((typeof options === 'undefined' ? 'undefined' : _typeof(options)) === 'object') {
    min = options.min || 0;
    max = options.max;
  } else {
    // backwards compatibility: isByteLength(str, min [, max])
    min = arguments[1];
    max = arguments[2];
  }
  var len = encodeURI(str).split(/%..|./).length - 1;
  return len >= min && (typeof max === 'undefined' || len <= max);
}
module.exports = exports['default'];
});

unwrapExports(isByteLength_1);

var isFQDN = createCommonjsModule(function (module, exports) {
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isFDQN;



var _assertString2 = _interopRequireDefault(assertString_1);



var _merge2 = _interopRequireDefault(merge_1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var default_fqdn_options = {
  require_tld: true,
  allow_underscores: false,
  allow_trailing_dot: false
};

function isFDQN(str, options) {
  (0, _assertString2.default)(str);
  options = (0, _merge2.default)(options, default_fqdn_options);

  /* Remove the optional trailing dot before checking validity */
  if (options.allow_trailing_dot && str[str.length - 1] === '.') {
    str = str.substring(0, str.length - 1);
  }
  var parts = str.split('.');
  if (options.require_tld) {
    var tld = parts.pop();
    if (!parts.length || !/^([a-z\u00a1-\uffff]{2,}|xn[a-z0-9-]{2,})$/i.test(tld)) {
      return false;
    }
    // disallow spaces
    if (/[\s\u2002-\u200B\u202F\u205F\u3000\uFEFF\uDB40\uDC20]/.test(tld)) {
      return false;
    }
  }
  for (var part, i = 0; i < parts.length; i++) {
    part = parts[i];
    if (options.allow_underscores) {
      part = part.replace(/_/g, '');
    }
    if (!/^[a-z\u00a1-\uffff0-9-]+$/i.test(part)) {
      return false;
    }
    // disallow full-width chars
    if (/[\uff01-\uff5e]/.test(part)) {
      return false;
    }
    if (part[0] === '-' || part[part.length - 1] === '-') {
      return false;
    }
  }
  return true;
}
module.exports = exports['default'];
});

unwrapExports(isFQDN);

var isEmail_1 = createCommonjsModule(function (module, exports) {
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isEmail;



var _assertString2 = _interopRequireDefault(assertString_1);



var _merge2 = _interopRequireDefault(merge_1);



var _isByteLength2 = _interopRequireDefault(isByteLength_1);



var _isFQDN2 = _interopRequireDefault(isFQDN);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var default_email_options = {
  allow_display_name: false,
  require_display_name: false,
  allow_utf8_local_part: true,
  require_tld: true
};

/* eslint-disable max-len */
/* eslint-disable no-control-regex */
var displayName = /^[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~\.\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~\,\.\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF\s]*<(.+)>$/i;
var emailUserPart = /^[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~]+$/i;
var quotedEmailUser = /^([\s\x01-\x08\x0b\x0c\x0e-\x1f\x7f\x21\x23-\x5b\x5d-\x7e]|(\\[\x01-\x09\x0b\x0c\x0d-\x7f]))*$/i;
var emailUserUtf8Part = /^[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+$/i;
var quotedEmailUserUtf8 = /^([\s\x01-\x08\x0b\x0c\x0e-\x1f\x7f\x21\x23-\x5b\x5d-\x7e\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]|(\\[\x01-\x09\x0b\x0c\x0d-\x7f\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))*$/i;
/* eslint-enable max-len */
/* eslint-enable no-control-regex */

function isEmail(str, options) {
  (0, _assertString2.default)(str);
  options = (0, _merge2.default)(options, default_email_options);

  if (options.require_display_name || options.allow_display_name) {
    var display_email = str.match(displayName);
    if (display_email) {
      str = display_email[1];
    } else if (options.require_display_name) {
      return false;
    }
  }

  var parts = str.split('@');
  var domain = parts.pop();
  var user = parts.join('@');

  var lower_domain = domain.toLowerCase();
  if (lower_domain === 'gmail.com' || lower_domain === 'googlemail.com') {
    user = user.replace(/\./g, '').toLowerCase();
  }

  if (!(0, _isByteLength2.default)(user, { max: 64 }) || !(0, _isByteLength2.default)(domain, { max: 254 })) {
    return false;
  }

  if (!(0, _isFQDN2.default)(domain, { require_tld: options.require_tld })) {
    return false;
  }

  if (user[0] === '"') {
    user = user.slice(1, user.length - 1);
    return options.allow_utf8_local_part ? quotedEmailUserUtf8.test(user) : quotedEmailUser.test(user);
  }

  var pattern = options.allow_utf8_local_part ? emailUserUtf8Part : emailUserPart;

  var user_parts = user.split('.');
  for (var i = 0; i < user_parts.length; i++) {
    if (!pattern.test(user_parts[i])) {
      return false;
    }
  }

  return true;
}
module.exports = exports['default'];
});

var isEmail = unwrapExports(isEmail_1);

var validate$7 = function (value) {
  if (Array.isArray(value)) {
    return value.every(function (val) { return isEmail(String(val)); });
  }

  return isEmail(String(value));
};

var ext = function (files, extensions) {
  var regex = new RegExp((".(" + (extensions.join('|')) + ")$"), 'i');

  return files.every(function (file) { return regex.test(file.name); });
};

var image = function (files) { return files.every(function (file) { return /\.(jpg|svg|jpeg|png|bmp|gif)$/i.test(file.name); }
); };

var validate$8 = function (value, options) {
  if (Array.isArray(value)) {
    return value.every(function (val) { return validate$8(val, options); });
  }

  // eslint-disable-next-line
  return !! options.filter(function (option) { return option == value; }).length;
};

var is = function (value, ref) {
  if ( ref === void 0 ) ref = [];
  var other = ref[0];

  return value === other;
};

var isIP_1 = createCommonjsModule(function (module, exports) {
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isIP;



var _assertString2 = _interopRequireDefault(assertString_1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var ipv4Maybe = /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/;
var ipv6Block = /^[0-9A-F]{1,4}$/i;

function isIP(str) {
  var version = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';

  (0, _assertString2.default)(str);
  version = String(version);
  if (!version) {
    return isIP(str, 4) || isIP(str, 6);
  } else if (version === '4') {
    if (!ipv4Maybe.test(str)) {
      return false;
    }
    var parts = str.split('.').sort(function (a, b) {
      return a - b;
    });
    return parts[3] <= 255;
  } else if (version === '6') {
    var blocks = str.split(':');
    var foundOmissionBlock = false; // marker to indicate ::

    // At least some OS accept the last 32 bits of an IPv6 address
    // (i.e. 2 of the blocks) in IPv4 notation, and RFC 3493 says
    // that '::ffff:a.b.c.d' is valid for IPv4-mapped IPv6 addresses,
    // and '::a.b.c.d' is deprecated, but also valid.
    var foundIPv4TransitionBlock = isIP(blocks[blocks.length - 1], 4);
    var expectedNumberOfBlocks = foundIPv4TransitionBlock ? 7 : 8;

    if (blocks.length > expectedNumberOfBlocks) {
      return false;
    }
    // initial or final ::
    if (str === '::') {
      return true;
    } else if (str.substr(0, 2) === '::') {
      blocks.shift();
      blocks.shift();
      foundOmissionBlock = true;
    } else if (str.substr(str.length - 2) === '::') {
      blocks.pop();
      blocks.pop();
      foundOmissionBlock = true;
    }

    for (var i = 0; i < blocks.length; ++i) {
      // test for a :: which can not be at the string start/end
      // since those cases have been handled above
      if (blocks[i] === '' && i > 0 && i < blocks.length - 1) {
        if (foundOmissionBlock) {
          return false; // multiple :: in address
        }
        foundOmissionBlock = true;
      } else if (foundIPv4TransitionBlock && i === blocks.length - 1) {
        // it has been checked before that the last
        // block is a valid IPv4 address
      } else if (!ipv6Block.test(blocks[i])) {
        return false;
      }
    }
    if (foundOmissionBlock) {
      return blocks.length >= 1;
    }
    return blocks.length === expectedNumberOfBlocks;
  }
  return false;
}
module.exports = exports['default'];
});

var isIP = unwrapExports(isIP_1);

// 

/**
 * Gets the data attribute. the name must be kebab-case.
 */
var getDataAttribute = function (el, name) { return el.getAttribute(("data-vv-" + name)); };

/**
 * Checks if the value is either null or undefined.
 */
var isNullOrUndefined = function (value) {
  return value === null || value === undefined;
};

/**
 * Sets the data attribute.
 */
var setDataAttribute = function (el, name, value) { return el.setAttribute(("data-vv-" + name), value); };

/**
 * Creates a proxy object if available in the environment.
 */
var createProxy = function (target, handler) {
  if (typeof Proxy === 'undefined') {
    return target;
  }

  return new Proxy(target, handler);
};

/**
 * Creates the default flags object.
 */
var createFlags = function () { return ({
  untouched: true,
  touched: false,
  dirty: false,
  pristine: true,
  valid: null,
  invalid: null,
  validated: false,
  pending: false,
  required: false
}); };

/**
 * Shallow object comparison.
 */
var isEqual$1 = function (lhs, rhs) {
  if (lhs instanceof RegExp && rhs instanceof RegExp) {
    return isEqual$1(lhs.source, rhs.source) && isEqual$1(lhs.flags, rhs.flags);
  }

  if (Array.isArray(lhs) && Array.isArray(rhs)) {
    if (lhs.length !== rhs.length) { return false; }

    for (var i = 0; i < lhs.length; i++) {
      if (!isEqual$1(lhs[i], rhs[i])) {
        return false;
      }
    }

    return true;
  }

  // if both are objects, compare each key recursively.
  if (isObject(lhs) && isObject(rhs)) {
    return Object.keys(lhs).every(function (key) {
      return isEqual$1(lhs[key], rhs[key]);
    }) && Object.keys(rhs).every(function (key) {
      return isEqual$1(lhs[key], rhs[key]);
    });
  }

  return lhs === rhs;
};

/**
 * Determines the input field scope.
 */
var getScope = function (el) {
  var scope = getDataAttribute(el, 'scope');
  if (isNullOrUndefined(scope) && el.form) {
    scope = getDataAttribute(el.form, 'scope');
  }

  return !isNullOrUndefined(scope) ? scope : null;
};

/**
 * Gets the value in an object safely.
 */
var getPath = function (path, target, def) {
  if ( def === void 0 ) def = undefined;

  if (!path || !target) { return def; }

  var value = target;
  path.split('.').every(function (prop) {
    if (! Object.prototype.hasOwnProperty.call(value, prop) && value[prop] === undefined) {
      value = def;

      return false;
    }

    value = value[prop];

    return true;
  });

  return value;
};

/**
 * Checks if path exists within an object.
 */
var hasPath = function (path, target) {
  var obj = target;
  return path.split('.').every(function (prop) {
    if (! Object.prototype.hasOwnProperty.call(obj, prop)) {
      return false;
    }

    obj = obj[prop];

    return true;
  });
};

/**
 * Parses a rule string expression.
 */
var parseRule = function (rule) {
  var params = [];
  var name = rule.split(':')[0];

  if (~rule.indexOf(':')) {
    params = rule.split(':').slice(1).join(':').split(',');
  }

  return { name: name, params: params };
};

/**
 * Debounces a function.
 */
var debounce = function (fn, wait, immediate) {
  if ( wait === void 0 ) wait = 0;
  if ( immediate === void 0 ) immediate = false;

  if (wait === 0) {
    return fn;
  }

  var timeout;

  return function () {
    var args = [], len = arguments.length;
    while ( len-- ) args[ len ] = arguments[ len ];

    var later = function () {
      timeout = null;
      if (!immediate) { fn.apply(void 0, args); }
    };
    /* istanbul ignore next */
    var callNow = immediate && !timeout;
    clearTimeout(timeout);
    timeout = setTimeout(later, wait);
    /* istanbul ignore next */
    if (callNow) { fn.apply(void 0, args); }
  };
};

/**
 * Normalizes the given rules expression.
 */
var normalizeRules = function (rules) {
  // if falsy value return an empty object.
  if (!rules) {
    return {};
  }

  if (isObject(rules)) {
    // $FlowFixMe
    return Object.keys(rules).reduce(function (prev, curr) {
      var params = [];
      // $FlowFixMe
      if (rules[curr] === true) {
        params = [];
      } else if (Array.isArray(rules[curr])) {
        params = rules[curr];
      } else {
        params = [rules[curr]];
      }

      // $FlowFixMe
      if (rules[curr] !== false) {
        prev[curr] = params;
      }

      return prev;
    }, {});
  }

  if (typeof rules !== 'string') {
    warn('rules must be either a string or an object.');
    return {};
  }

  return rules.split('|').reduce(function (prev, rule) {
    var parsedRule = parseRule(rule);
    if (!parsedRule.name) {
      return prev;
    }

    prev[parsedRule.name] = parsedRule.params;
    return prev;
  }, {});
};

/**
 * Emits a warning to the console.
 */
var warn = function (message) {
  console.warn(("[vee-validate] " + message)); // eslint-disable-line
};

/**
 * Creates a branded error object.
 */
var createError = function (message) { return new Error(("[vee-validate] " + message)); };

/**
 * Checks if the value is an object.
 */
var isObject = function (obj) { return obj !== null && obj && typeof obj === 'object' && ! Array.isArray(obj); };

/**
 * Checks if a function is callable.
 */
var isCallable = function (func) { return typeof func === 'function'; };

/**
 * Check if element has the css class on it.
 */
var hasClass = function (el, className) {
  if (el.classList) {
    return el.classList.contains(className);
  }

  return !!el.className.match(new RegExp(("(\\s|^)" + className + "(\\s|$)")));
};

/**
 * Adds the provided css className to the element.
 */
var addClass = function (el, className) {
  if (el.classList) {
    el.classList.add(className);
    return;
  }

  if (!hasClass(el, className)) {
    el.className += " " + className;
  }
};

/**
 * Remove the provided css className from the element.
 */
var removeClass = function (el, className) {
  if (el.classList) {
    el.classList.remove(className);
    return;
  }

  if (hasClass(el, className)) {
    var reg = new RegExp(("(\\s|^)" + className + "(\\s|$)"));
    el.className = el.className.replace(reg, ' ');
  }
};

/**
 * Adds or removes a class name on the input depending on the status flag.
 */
var toggleClass = function (el, className, status) {
  if (!el || !className) { return; }

  if (status) {
    return addClass(el, className);
  }

  removeClass(el, className);
};

/**
 * Converts an array-like object to array, provides a simple polyfill for Array.from
 */
var toArray = function (arrayLike) {
  if (isCallable(Array.from)) {
    return Array.from(arrayLike);
  }

  var array = [];
  var length = arrayLike.length;
  for (var i = 0; i < length; i++) {
    array.push(arrayLike[i]);
  }

  return array;
};

/**
 * Assign polyfill from the mdn.
 */
var assign = function (target) {
  var others = [], len = arguments.length - 1;
  while ( len-- > 0 ) others[ len ] = arguments[ len + 1 ];

  /* istanbul ignore else */
  if (isCallable(Object.assign)) {
    return Object.assign.apply(Object, [ target ].concat( others ));
  }

  /* istanbul ignore next */
  if (target == null) {
    throw new TypeError('Cannot convert undefined or null to object');
  }

  /* istanbul ignore next */
  var to = Object(target);
  /* istanbul ignore next */
  others.forEach(function (arg) {
    // Skip over if undefined or null
    if (arg != null) {
      Object.keys(arg).forEach(function (key) {
        to[key] = arg[key];
      });
    }
  });
  /* istanbul ignore next */
  return to;
};

var id = 0;
var idTemplate = '{id}';

/**
 * Generates a unique id.
 */
var uniqId = function () {
  // handle too many uses of uniqId, although unlikely.
  if (id >= 9999) {
    id = 0;
    // shift the template.
    idTemplate = idTemplate.replace('{id}', '_{id}');
  }

  id++;
  var newId = idTemplate.replace('{id}', String(id));

  return newId;
};

/**
 * finds the first element that satisfies the predicate callback, polyfills array.find
 */
var find = function (arrayLike, predicate) {
  var array = toArray(arrayLike);

  if (isCallable(array.find)) {
    return array.find(predicate);
  }

  var result;
  array.some(function (item) {
    if (predicate(item)) {
      result = item;
      return true;
    }

    return false;
  });

  return result;
};

/**
 * Returns a suitable event name for the input element.
 */
var getInputEventName = function (el) {
  if (el && (el.tagName === 'SELECT' || ~['radio', 'checkbox', 'file'].indexOf(el.type))) {
    return 'change';
  }

  return 'input';
};

var isBuiltInComponent = function (vnode) {
  if (!vnode) {
    return false;
  }

  var tag = vnode.componentOptions.tag;

  return /keep-alive|transition|transition-group/.test(tag);
};

var makeEventsArray = function (events) {
  return (typeof events === 'string' && events.length) ? events.split('|') : [];
};

var makeDelayObject = function (events, delay, delayConfig) {
  if (typeof delay === 'number') {
    return events.reduce(function (prev, e) {
      prev[e] = delay;
      return prev;
    }, {});
  }

  return events.reduce(function (prev, e) {
    if (typeof delay === 'object' && e in delay) {
      prev[e] = delay[e];
      return prev;
    }

    if (typeof delayConfig === 'number') {
      prev[e] = delayConfig;
      return prev;
    }

    prev[e] = (delayConfig && delayConfig[e]) || 0;

    return prev;
  }, {});
};

var deepParseInt = function (input) {
  if (typeof input === 'number') { return input; }

  if (typeof input === 'string') { return parseInt(input); }

  var map = {};
  for (var element in input) {
    map[element] = parseInt(input[element]);
  }

  return map;
};

var merge$1 = function (target, source) {
  if (! (isObject(target) && isObject(source))) {
    return target;
  }

  Object.keys(source).forEach(function (key) {
    if (isObject(source[key])) {
      if (! target[key]) {
        assign(target, ( obj = {}, obj[key] = {}, obj ));
        var obj;
      }

      merge$1(target[key], source[key]);
      return;
    }

    assign(target, ( obj$1 = {}, obj$1[key] = source[key], obj$1 ));
    var obj$1;
  });

  return target;
};

var ip = function (value, ref) {
  if ( ref === void 0 ) ref = [];
  var version = ref[0]; if ( version === void 0 ) version = 4;

  if (isNullOrUndefined(value)) {
    value = '';
  }

  if (Array.isArray(value)) {
    return value.every(function (val) { return isIP(val, version); });
  }

  return isIP(value, version);
};

/**
 * @param {Array|String} value
 * @param {Number} length
 * @param {Number} max
 */
var compare = function (value, length, max) {
  if (max === undefined) {
    return value.length === length;
  }

  // cast to number.
  max = Number(max);

  return value.length >= length && value.length <= max;
};

var length = function (value, ref) {
  var length = ref[0];
  var max = ref[1]; if ( max === void 0 ) max = undefined;

  length = Number(length);
  if (value === undefined || value === null) {
    return false;
  }

  if (typeof value === 'number') {
    value = String(value);
  }

  if (!value.length) {
    value = toArray(value);
  }

  return compare(value, length, max);
};

var integer = function (value) {
  if (Array.isArray(value)) {
    return value.every(function (val) { return /^-?[0-9]+$/.test(String(val)); });
  }

  return /^-?[0-9]+$/.test(String(value));
};

var max$1 = function (value, ref) {
  var length = ref[0];

  if (value === undefined || value === null) {
    return length >= 0;
  }

  return String(value).length <= length;
};

var max_value = function (value, ref) {
  var max = ref[0];

  if (Array.isArray(value) || value === null || value === undefined || value === '') {
    return false;
  }

  return Number(value) <= max;
};

var mimes = function (files, mimes) {
  var regex = new RegExp(((mimes.join('|').replace('*', '.+')) + "$"), 'i');

  return files.every(function (file) { return regex.test(file.type); });
};

var min$1 = function (value, ref) {
  var length = ref[0];

  if (value === undefined || value === null) {
    return false;
  }
  return String(value).length >= length;
};

var min_value = function (value, ref) {
  var min = ref[0];

  if (Array.isArray(value) || value === null || value === undefined || value === '') {
    return false;
  }

  return Number(value) >= min;
};

var validate$9 = function (value, options) {
  if (Array.isArray(value)) {
    return value.every(function (val) { return validate$9(val, options); });
  }

  // eslint-disable-next-line
  return ! options.filter(function (option) { return option == value; }).length;
};

var numeric = function (value) {
  if (Array.isArray(value)) {
    return value.every(function (val) { return /^[0-9]+$/.test(String(val)); });
  }

  return /^[0-9]+$/.test(String(value));
};

var regex = function (value, ref) {
  var regex = ref[0];
  var flags = ref.slice(1);

  if (regex instanceof RegExp) {
    return regex.test(value);
  }

  return new RegExp(regex, flags).test(String(value));
};

var required = function (value, ref) {
  if ( ref === void 0 ) ref = [];
  var invalidateFalse = ref[0]; if ( invalidateFalse === void 0 ) invalidateFalse = false;

  if (Array.isArray(value)) {
    return !! value.length;
  }

  // incase a field considers `false` as an empty value like checkboxes.
  if (value === false && invalidateFalse) {
    return false;
  }

  if (value === undefined || value === null) {
    return false;
  }

  return !! String(value).trim().length;
};

var size = function (files, ref) {
  var size = ref[0];

  if (isNaN(size)) {
    return false;
  }

  var nSize = Number(size) * 1024;
  for (var i = 0; i < files.length; i++) {
    if (files[i].size > nSize) {
      return false;
    }
  }

  return true;
};

var isURL_1 = createCommonjsModule(function (module, exports) {
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isURL;



var _assertString2 = _interopRequireDefault(assertString_1);



var _isFQDN2 = _interopRequireDefault(isFQDN);



var _isIP2 = _interopRequireDefault(isIP_1);



var _merge2 = _interopRequireDefault(merge_1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var default_url_options = {
  protocols: ['http', 'https', 'ftp'],
  require_tld: true,
  require_protocol: false,
  require_host: true,
  require_valid_protocol: true,
  allow_underscores: false,
  allow_trailing_dot: false,
  allow_protocol_relative_urls: false
};

var wrapped_ipv6 = /^\[([^\]]+)\](?::([0-9]+))?$/;

function isRegExp(obj) {
  return Object.prototype.toString.call(obj) === '[object RegExp]';
}

function checkHost(host, matches) {
  for (var i = 0; i < matches.length; i++) {
    var match = matches[i];
    if (host === match || isRegExp(match) && match.test(host)) {
      return true;
    }
  }
  return false;
}

function isURL(url, options) {
  (0, _assertString2.default)(url);
  if (!url || url.length >= 2083 || /[\s<>]/.test(url)) {
    return false;
  }
  if (url.indexOf('mailto:') === 0) {
    return false;
  }
  options = (0, _merge2.default)(options, default_url_options);
  var protocol = void 0,
      auth = void 0,
      host = void 0,
      hostname = void 0,
      port = void 0,
      port_str = void 0,
      split = void 0,
      ipv6 = void 0;

  split = url.split('#');
  url = split.shift();

  split = url.split('?');
  url = split.shift();

  split = url.split('://');
  if (split.length > 1) {
    protocol = split.shift();
    if (options.require_valid_protocol && options.protocols.indexOf(protocol) === -1) {
      return false;
    }
  } else if (options.require_protocol) {
    return false;
  } else if (options.allow_protocol_relative_urls && url.substr(0, 2) === '//') {
    split[0] = url.substr(2);
  }
  url = split.join('://');

  if (url === '') {
    return false;
  }

  split = url.split('/');
  url = split.shift();

  if (url === '' && !options.require_host) {
    return true;
  }

  split = url.split('@');
  if (split.length > 1) {
    auth = split.shift();
    if (auth.indexOf(':') >= 0 && auth.split(':').length > 2) {
      return false;
    }
  }
  hostname = split.join('@');

  port_str = null;
  ipv6 = null;
  var ipv6_match = hostname.match(wrapped_ipv6);
  if (ipv6_match) {
    host = '';
    ipv6 = ipv6_match[1];
    port_str = ipv6_match[2] || null;
  } else {
    split = hostname.split(':');
    host = split.shift();
    if (split.length) {
      port_str = split.join(':');
    }
  }

  if (port_str !== null) {
    port = parseInt(port_str, 10);
    if (!/^[0-9]+$/.test(port_str) || port <= 0 || port > 65535) {
      return false;
    }
  }

  if (!(0, _isIP2.default)(host) && !(0, _isFQDN2.default)(host, options) && (!ipv6 || !(0, _isIP2.default)(ipv6, 6))) {
    return false;
  }

  host = host || ipv6;

  if (options.host_whitelist && !checkHost(host, options.host_whitelist)) {
    return false;
  }
  if (options.host_blacklist && checkHost(host, options.host_blacklist)) {
    return false;
  }

  return true;
}
module.exports = exports['default'];
});

var isURL = unwrapExports(isURL_1);

var url = function (value, ref) {
  if ( ref === void 0 ) ref = [];
  var requireProtocol = ref[0]; if ( requireProtocol === void 0 ) requireProtocol = false;

  var options = { require_protocol: !!requireProtocol, allow_underscores: true };
  if (isNullOrUndefined(value)) {
    value = '';
  }

  if (Array.isArray(value)) {
    return value.every(function (val) { return isURL(val, options); });
  }

  return isURL(value, options);
};

/* eslint-disable camelcase */
var Rules = {
  after: after,
  alpha_dash: validate$1,
  alpha_num: validate$2,
  alpha_spaces: validate$3,
  alpha: validate,
  before: before,
  between: validate$4,
  confirmed: confirmed,
  credit_card: credit_card,
  date_between: date_between,
  date_format: date_format,
  decimal: validate$5,
  digits: validate$6,
  dimensions: dimensions,
  email: validate$7,
  ext: ext,
  image: image,
  in: validate$8,
  integer: integer,
  length: length,
  ip: ip,
  is: is,
  max: max$1,
  max_value: max_value,
  mimes: mimes,
  min: min$1,
  min_value: min_value,
  not_in: validate$9,
  numeric: numeric,
  regex: regex,
  required: required,
  size: size,
  url: url
};

/**
 * Formates file size.
 *
 * @param {Number|String} size
 */
var formatFileSize = function (size) {
  var units = ['Byte', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
  var threshold = 1024;
  size = Number(size) * threshold;
  var i = size === 0 ? 0 : Math.floor(Math.log(size) / Math.log(threshold));
  return (((size / Math.pow(threshold, i)).toFixed(2) * 1) + " " + (units[i]));
};

/**
 * Checks if vee-validate is defined globally.
 */
var isDefinedGlobally = function () {
  return typeof VeeValidate !== 'undefined';
};

var messages = {
  _default: function (field) { return ("The " + field + " value is not valid."); },
  after: function (field, ref) {
    var target = ref[0];
    var inclusion = ref[1];

    return ("The " + field + " must be after " + (inclusion ? 'or equal to ' : '') + target + ".");
},
  alpha_dash: function (field) { return ("The " + field + " field may contain alpha-numeric characters as well as dashes and underscores."); },
  alpha_num: function (field) { return ("The " + field + " field may only contain alpha-numeric characters."); },
  alpha_spaces: function (field) { return ("The " + field + " field may only contain alphabetic characters as well as spaces."); },
  alpha: function (field) { return ("The " + field + " field may only contain alphabetic characters."); },
  before: function (field, ref) {
    var target = ref[0];
    var inclusion = ref[1];

    return ("The " + field + " must be before " + (inclusion ? 'or equal to ' : '') + target + ".");
},
  between: function (field, ref) {
    var min = ref[0];
    var max = ref[1];

    return ("The " + field + " field must be between " + min + " and " + max + ".");
},
  confirmed: function (field) { return ("The " + field + " confirmation does not match."); },
  credit_card: function (field) { return ("The " + field + " field is invalid."); },
  date_between: function (field, ref) {
    var min = ref[0];
    var max = ref[1];

    return ("The " + field + " must be between " + min + " and " + max + ".");
},
  date_format: function (field, ref) {
    var format = ref[0];

    return ("The " + field + " must be in the format " + format + ".");
},
  decimal: function (field, ref) {
    if ( ref === void 0 ) ref = [];
    var decimals = ref[0]; if ( decimals === void 0 ) decimals = '*';

    return ("The " + field + " field must be numeric and may contain " + (!decimals || decimals === '*' ? '' : decimals) + " decimal points.");
},
  digits: function (field, ref) {
    var length = ref[0];

    return ("The " + field + " field must be numeric and exactly contain " + length + " digits.");
},
  dimensions: function (field, ref) {
    var width = ref[0];
    var height = ref[1];

    return ("The " + field + " field must be " + width + " pixels by " + height + " pixels.");
},
  email: function (field) { return ("The " + field + " field must be a valid email."); },
  ext: function (field) { return ("The " + field + " field must be a valid file."); },
  image: function (field) { return ("The " + field + " field must be an image."); },
  in: function (field) { return ("The " + field + " field must be a valid value."); },
  integer: function (field) { return ("The " + field + " field must be an integer."); },
  ip: function (field) { return ("The " + field + " field must be a valid ip address."); },
  length: function (field, ref) {
    var length = ref[0];
    var max = ref[1];

    if (max) {
      return ("The " + field + " length be between " + length + " and " + max + ".");
    }

    return ("The " + field + " length must be " + length + ".");
  },
  max: function (field, ref) {
    var length = ref[0];

    return ("The " + field + " field may not be greater than " + length + " characters.");
},
  max_value: function (field, ref) {
    var max = ref[0];

    return ("The " + field + " field must be " + max + " or less.");
},
  mimes: function (field) { return ("The " + field + " field must have a valid file type."); },
  min: function (field, ref) {
    var length = ref[0];

    return ("The " + field + " field must be at least " + length + " characters.");
},
  min_value: function (field, ref) {
    var min = ref[0];

    return ("The " + field + " field must be " + min + " or more.");
},
  not_in: function (field) { return ("The " + field + " field must be a valid value."); },
  numeric: function (field) { return ("The " + field + " field may only contain numeric characters."); },
  regex: function (field) { return ("The " + field + " field format is invalid."); },
  required: function (field) { return ("The " + field + " field is required."); },
  size: function (field, ref) {
    var size = ref[0];

    return ("The " + field + " size must be less than " + (formatFileSize(size)) + ".");
},
  url: function (field) { return ("The " + field + " field is not a valid URL."); }
};

var locale$1 = {
  name: 'en',
  messages: messages,
  attributes: {}
};

if (isDefinedGlobally()) {
  // eslint-disable-next-line
  VeeValidate.Validator.addLocale(locale$1);
}

// 

var ErrorBag = function ErrorBag () {
  this.items = [];
};

/**
 * Adds an error to the internal array.
 */
ErrorBag.prototype.add = function add (error) {
  // handle old signature.
  if (arguments.length > 1) {
    error = {
      field: arguments[0],
      msg: arguments[1],
      rule: arguments[2],
      scope: !isNullOrUndefined(arguments[3]) ? arguments[3] : null,
      regenerate: null
    };
  }

  error.scope = !isNullOrUndefined(error.scope) ? error.scope : null;
  this.items.push(error);
};

/**
 * Regenrates error messages if they have a generator function.
 */
ErrorBag.prototype.regenerate = function regenerate () {
  this.items.forEach(function (i) {
    i.msg = isCallable(i.regenerate) ? i.regenerate() : i.msg;
  });
};

/**
 * Updates a field error with the new field scope.
 */
ErrorBag.prototype.update = function update (id, error) {
  var item = find(this.items, function (i) { return i.id === id; });
  if (!item) {
    return;
  }

  var idx = this.items.indexOf(item);
  this.items.splice(idx, 1);
  item.scope = error.scope;
  this.items.push(item);
};

/**
 * Gets all error messages from the internal array.
 */
ErrorBag.prototype.all = function all (scope) {
  if (isNullOrUndefined(scope)) {
    return this.items.map(function (e) { return e.msg; });
  }

  return this.items.filter(function (e) { return e.scope === scope; }).map(function (e) { return e.msg; });
};

/**
 * Checks if there are any errors in the internal array.
 */
ErrorBag.prototype.any = function any (scope) {
  if (isNullOrUndefined(scope)) {
    return !!this.items.length;
  }

  return !!this.items.filter(function (e) { return e.scope === scope; }).length;
};

/**
 * Removes all items from the internal array.
 */
ErrorBag.prototype.clear = function clear (scope) {
    var this$1 = this;

  if (isNullOrUndefined(scope)) {
    scope = null;
  }

  for (var i = 0; i < this.items.length; ++i) {
    if (this$1.items[i].scope === scope) {
      this$1.items.splice(i, 1);
      --i;
    }
  }
};

/**
 * Collects errors into groups or for a specific field.
 */
ErrorBag.prototype.collect = function collect (field, scope, map) {
    if ( map === void 0 ) map = true;

  if (!field) {
    var collection = {};
    this.items.forEach(function (e) {
      if (! collection[e.field]) {
        collection[e.field] = [];
      }

      collection[e.field].push(map ? e.msg : e);
    });

    return collection;
  }

  field = !isNullOrUndefined(field) ? String(field) : field;
  if (isNullOrUndefined(scope)) {
    return this.items.filter(function (e) { return e.field === field; }).map(function (e) { return (map ? e.msg : e); });
  }

  return this.items.filter(function (e) { return e.field === field && e.scope === scope; })
    .map(function (e) { return (map ? e.msg : e); });
};
/**
 * Gets the internal array length.
 */
ErrorBag.prototype.count = function count () {
  return this.items.length;
};

/**
 * Finds and fetches the first error message for the specified field id.
 */
ErrorBag.prototype.firstById = function firstById (id) {
  var error = find(this.items, function (i) { return i.id === id; });

  return error ? error.msg : null;
};

/**
 * Gets the first error message for a specific field.
 */
ErrorBag.prototype.first = function first (field, scope) {
    var this$1 = this;
    if ( scope === void 0 ) scope = null;

  field = !isNullOrUndefined(field) ? String(field) : field;
  var selector = this._selector(field);
  var scoped = this._scope(field);

  if (scoped) {
    var result = this.first(scoped.name, scoped.scope);
    // if such result exist, return it. otherwise it could be a field.
    // with dot in its name.
    if (result) {
      return result;
    }
  }

  if (selector) {
    return this.firstByRule(selector.name, selector.rule, scope);
  }

  for (var i = 0; i < this.items.length; ++i) {
    if (this$1.items[i].field === field && (this$1.items[i].scope === scope)) {
      return this$1.items[i].msg;
    }
  }

  return null;
};

/**
 * Returns the first error rule for the specified field
 */
ErrorBag.prototype.firstRule = function firstRule (field, scope) {
  var errors = this.collect(field, scope, false);

  return (errors.length && errors[0].rule) || null;
};

/**
 * Checks if the internal array has at least one error for the specified field.
 */
ErrorBag.prototype.has = function has (field, scope) {
    if ( scope === void 0 ) scope = null;

  return !!this.first(field, scope);
};

/**
 * Gets the first error message for a specific field and a rule.
 */
ErrorBag.prototype.firstByRule = function firstByRule (name, rule, scope) {
    if ( scope === void 0 ) scope = null;

  var error = this.collect(name, scope, false).filter(function (e) { return e.rule === rule; })[0];

  return (error && error.msg) || null;
};

/**
 * Gets the first error message for a specific field that not match the rule.
 */
ErrorBag.prototype.firstNot = function firstNot (name, rule, scope) {
    if ( rule === void 0 ) rule = 'required';
    if ( scope === void 0 ) scope = null;

  var error = this.collect(name, scope, false).filter(function (e) { return e.rule !== rule; })[0];

  return (error && error.msg) || null;
};

/**
 * Removes errors by matching against the id.
 */
ErrorBag.prototype.removeById = function removeById (id) {
    var this$1 = this;

  for (var i = 0; i < this.items.length; ++i) {
    if (this$1.items[i].id === id) {
      this$1.items.splice(i, 1);
      --i;
    }
  }
};

/**
 * Removes all error messages associated with a specific field.
 */
ErrorBag.prototype.remove = function remove (field, scope, id) {
    var this$1 = this;

  field = !isNullOrUndefined(field) ? String(field) : field;
  var removeCondition = function (e) {
    if (e.id && id) {
      return e.id === id;
    }

    if (!isNullOrUndefined(scope)) {
      return e.field === field && e.scope === scope;
    }

    return e.field === field && e.scope === null;
  };

  for (var i = 0; i < this.items.length; ++i) {
    if (removeCondition(this$1.items[i])) {
      this$1.items.splice(i, 1);
      --i;
    }
  }
};

/**
 * Get the field attributes if there's a rule selector.
 */
ErrorBag.prototype._selector = function _selector (field) {
  if (field.indexOf(':') > -1) {
    var ref = field.split(':');
      var name = ref[0];
      var rule = ref[1];

    return { name: name, rule: rule };
  }

  return null;
};

/**
 * Get the field scope if specified using dot notation.
 */
ErrorBag.prototype._scope = function _scope (field) {
  if (field.indexOf('.') > -1) {
    var ref = field.split('.');
      var scope = ref[0];
      var name = ref.slice(1);

    return { name: name.join('.'), scope: scope };
  }

  return null;
};

// 

var LOCALE = 'en';

var Dictionary = function Dictionary (dictionary) {
  if ( dictionary === void 0 ) dictionary = {};

  this.container = {};
  this.merge(dictionary);
};

var prototypeAccessors$2 = { locale: {} };

prototypeAccessors$2.locale.get = function () {
  return LOCALE;
};

prototypeAccessors$2.locale.set = function (value) {
  LOCALE = value || 'en';
};

Dictionary.prototype.hasLocale = function hasLocale (locale) {
  return !!this.container[locale];
};

Dictionary.prototype.setDateFormat = function setDateFormat (locale, format) {
  if (!this.container[locale]) {
    this.container[locale] = {};
  }

  this.container[locale].dateFormat = format;
};

Dictionary.prototype.getDateFormat = function getDateFormat (locale) {
  if (!this.container[locale] || !this.container[locale].dateFormat) {
    return null;
  }

  return this.container[locale].dateFormat;
};

Dictionary.prototype.getMessage = function getMessage (locale, key, data) {
  var message = null;
  if (!this.hasMessage(locale, key)) {
    message = this._getDefaultMessage(locale);
  } else {
    message = this.container[locale].messages[key];
  }

  return isCallable(message) ? message.apply(void 0, data) : message;
};

/**
 * Gets a specific message for field. falls back to the rule message.
 */
Dictionary.prototype.getFieldMessage = function getFieldMessage (locale, field, key, data) {
  if (!this.hasLocale(locale)) {
    return this.getMessage(locale, key, data);
  }

  var dict = this.container[locale].custom && this.container[locale].custom[field];
  if (!dict || !dict[key]) {
    return this.getMessage(locale, key, data);
  }

  var message = dict[key];
  return isCallable(message) ? message.apply(void 0, data) : message;
};

Dictionary.prototype._getDefaultMessage = function _getDefaultMessage (locale) {
  if (this.hasMessage(locale, '_default')) {
    return this.container[locale].messages._default;
  }

  return this.container.en.messages._default;
};

Dictionary.prototype.getAttribute = function getAttribute (locale, key, fallback) {
    if ( fallback === void 0 ) fallback = '';

  if (!this.hasAttribute(locale, key)) {
    return fallback;
  }

  return this.container[locale].attributes[key];
};

Dictionary.prototype.hasMessage = function hasMessage (locale, key) {
  return !! (
    this.hasLocale(locale) &&
          this.container[locale].messages &&
          this.container[locale].messages[key]
  );
};

Dictionary.prototype.hasAttribute = function hasAttribute (locale, key) {
  return !! (
    this.hasLocale(locale) &&
          this.container[locale].attributes &&
          this.container[locale].attributes[key]
  );
};

Dictionary.prototype.merge = function merge$1$$1 (dictionary) {
  merge$1(this.container, dictionary);
};

Dictionary.prototype.setMessage = function setMessage (locale, key, message) {
  if (! this.hasLocale(locale)) {
    this.container[locale] = {
      messages: {},
      attributes: {}
    };
  }

  this.container[locale].messages[key] = message;
};

Dictionary.prototype.setAttribute = function setAttribute (locale, key, attribute) {
  if (! this.hasLocale(locale)) {
    this.container[locale] = {
      messages: {},
      attributes: {}
    };
  }

  this.container[locale].attributes[key] = attribute;
};

Object.defineProperties( Dictionary.prototype, prototypeAccessors$2 );

// 

var normalizeValue = function (value) {
  if (isObject(value)) {
    return Object.keys(value).reduce(function (prev, key) {
      prev[key] = normalizeValue(value[key]);

      return prev;
    }, {});
  }

  if (isCallable(value)) {
    return value('{0}', ['{1}', '{2}', '{3}']);
  }

  return value;
};

var normalizeFormat = function (locale) {
  // normalize messages
  var messages = normalizeValue(locale.messages);
  var custom = normalizeValue(locale.custom);

  return {
    messages: messages,
    custom: custom,
    attributes: locale.attributes,
    dateFormat: locale.dateFormat
  };
};

var I18nDictionary = function I18nDictionary (i18n, rootKey) {
  this.i18n = i18n;
  this.rootKey = rootKey;
};

var prototypeAccessors$3 = { locale: {} };

prototypeAccessors$3.locale.get = function () {
  return this.i18n.locale;
};

prototypeAccessors$3.locale.set = function (value) {
  warn('Cannot set locale from the validator when using vue-i18n, use i18n.locale setter instead');
};

I18nDictionary.prototype.getDateFormat = function getDateFormat (locale) {
  return this.i18n.getDateTimeFormat(locale || this.locale);
};

I18nDictionary.prototype.setDateFormat = function setDateFormat (locale, value) {
  this.i18n.setDateTimeFormat(locale || this.locale, value);
};

I18nDictionary.prototype.getMessage = function getMessage (locale, key, data) {
  var path = (this.rootKey) + ".messages." + key;
  if (!this.i18n.te(path)) {
    return this.i18n.t(((this.rootKey) + ".messages._default"), locale, data);
  }

  return this.i18n.t(path, locale, data);
};

I18nDictionary.prototype.getAttribute = function getAttribute (locale, key, fallback) {
    if ( fallback === void 0 ) fallback = '';

  var path = (this.rootKey) + ".attributes." + key;
  if (!this.i18n.te(path)) {
    return fallback;
  }

  return this.i18n.t(path, locale);
};

I18nDictionary.prototype.getFieldMessage = function getFieldMessage (locale, field, key, data) {
  var path = (this.rootKey) + ".custom." + field + "." + key;
  if (this.i18n.te(path)) {
    return this.i18n.t(path);
  }

  return this.getMessage(locale, key, data);
};

I18nDictionary.prototype.merge = function merge$1$$1 (dictionary) {
    var this$1 = this;

  Object.keys(dictionary).forEach(function (localeKey) {
    // i18n doesn't deep merge
    // first clone the existing locale (avoid mutations to locale)
    var clone = merge$1({}, getPath((localeKey + "." + (this$1.rootKey)), this$1.i18n.messages, {}));
    // Merge cloned locale with new one
    var locale = merge$1(clone, normalizeFormat(dictionary[localeKey]));
    this$1.i18n.mergeLocaleMessage(localeKey, ( obj = {}, obj[this$1.rootKey] = locale, obj ));
      var obj;
    if (locale.dateFormat) {
      this$1.i18n.setDateTimeFormat(localeKey, locale.dateFormat);
    }
  });
};

I18nDictionary.prototype.setMessage = function setMessage (locale, key, value) {
  this.merge(( obj$1 = {}, obj$1[locale] = {
      messages: ( obj = {}, obj[key] = value, obj )
    }, obj$1 ));
    var obj;
    var obj$1;
};

I18nDictionary.prototype.setAttribute = function setAttribute (locale, key, value) {
  this.merge(( obj$1 = {}, obj$1[locale] = {
      attributes: ( obj = {}, obj[key] = value, obj )
    }, obj$1 ));
    var obj;
    var obj$1;
};

Object.defineProperties( I18nDictionary.prototype, prototypeAccessors$3 );

// 

var defaultConfig = {
  locale: 'en',
  delay: 0,
  errorBagName: 'errors',
  dictionary: null,
  strict: true,
  fieldsBagName: 'fields',
  classes: false,
  classNames: null,
  events: 'input|blur',
  inject: true,
  fastExit: true,
  aria: true,
  validity: false,
  i18n: null,
  i18nRootKey: 'validation'
};

var currentConfig = assign({}, defaultConfig);
var dependencies = {
  dictionary: new Dictionary({
    en: {
      messages: {},
      attributes: {},
      custom: {}
    }
  })
};

var Config = function Config () {};

var staticAccessors$1 = { default: {},current: {} };

staticAccessors$1.default.get = function () {
  return defaultConfig;
};

staticAccessors$1.current.get = function () {
  return currentConfig;
};

Config.dependency = function dependency (key) {
  return dependencies[key];
};

/**
 * Merges the config with a new one.
 */
Config.merge = function merge (config) {
  currentConfig = assign({}, currentConfig, config);
  if (currentConfig.i18n) {
    Config.register('dictionary', new I18nDictionary(currentConfig.i18n, currentConfig.i18nRootKey));
  }
};

/**
 * Registers a dependency.
 */
Config.register = function register (key, value) {
  dependencies[key] = value;
};

/**
 * Resolves the working config from a Vue instance.
 */
Config.resolve = function resolve (context) {
  var selfConfig = getPath('$options.$_veeValidate', context, {});

  return assign({}, Config.current, selfConfig);
};

Object.defineProperties( Config, staticAccessors$1 );

/**
 * Generates the options required to construct a field.
 */
var Generator = function Generator () {};

Generator.generate = function generate (el, binding, vnode) {
  var model = Generator.resolveModel(binding, vnode);
  var options = Config.resolve(vnode.context);

  return {
    name: Generator.resolveName(el, vnode),
    el: el,
    listen: !binding.modifiers.disable,
    scope: Generator.resolveScope(el, binding, vnode),
    vm: Generator.makeVM(vnode.context),
    expression: binding.value,
    component: vnode.child,
    classes: options.classes,
    classNames: options.classNames,
    getter: Generator.resolveGetter(el, vnode, model),
    events: Generator.resolveEvents(el, vnode) || options.events,
    model: model,
    delay: Generator.resolveDelay(el, vnode, options),
    rules: Generator.resolveRules(el, binding),
    initial: !!binding.modifiers.initial,
    validity: options.validity,
    aria: options.aria,
    initialValue: Generator.resolveInitialValue(vnode)
  };
};

Generator.getCtorConfig = function getCtorConfig (vnode) {
  if (!vnode.child) { return null; }

  var config = getPath('child.$options.$_veeValidate', vnode);

  return config;
};

/**
 * Resolves the rules defined on an element.
 */
Generator.resolveRules = function resolveRules (el, binding) {
  if (!binding.value && (!binding || !binding.expression)) {
    return getDataAttribute(el, 'rules');
  }

  if (typeof binding.value === 'string') {
    return binding.value;
  }

  if (~['string', 'object'].indexOf(typeof binding.value.rules)) {
    return binding.value.rules;
  }

  return binding.value;
};

/**
 * @param {*} vnode
 */
Generator.resolveInitialValue = function resolveInitialValue (vnode) {
  var model = vnode.data.model || find(vnode.data.directives, function (d) { return d.name === 'model'; });

  return model && model.value;
};

/**
 * Creates a non-circular partial VM instance from a Vue instance.
 * @param {*} vm
 */
Generator.makeVM = function makeVM (vm) {
  return {
    get $el () {
      return vm.$el;
    },
    get $refs () {
      return vm.$refs;
    },
    $watch: vm.$watch ? vm.$watch.bind(vm) : function () {},
    $validator: vm.$validator ? {
      errors: vm.$validator.errors,
      validate: vm.$validator.validate.bind(vm.$validator),
      update: vm.$validator.update.bind(vm.$validator)
    } : null
  };
};

/**
 * Resolves the delay value.
 * @param {*} el
 * @param {*} vnode
 * @param {Object} options
 */
Generator.resolveDelay = function resolveDelay (el, vnode, options) {
  var delay = getDataAttribute(el, 'delay');
  var globalDelay = (options && 'delay' in options) ? options.delay : 0;

  if (!delay && vnode.child && vnode.child.$attrs) {
    delay = vnode.child.$attrs['data-vv-delay'];
  }

  return (delay) ? { local: { input: parseInt(delay) }, global: deepParseInt(globalDelay) } : { global: deepParseInt(globalDelay) };
};

/**
 * Resolves the events to validate in response to.
 * @param {*} el
 * @param {*} vnode
 */
Generator.resolveEvents = function resolveEvents (el, vnode) {
  var events = getDataAttribute(el, 'validate-on');

  if (!events && vnode.child && vnode.child.$attrs) {
    events = vnode.child.$attrs['data-vv-validate-on'];
  }

  if (!events && vnode.child) {
    var config = Generator.getCtorConfig(vnode);
    events = config && config.events;
  }

  return events;
};

/**
 * Resolves the scope for the field.
 * @param {*} el
 * @param {*} binding
 */
Generator.resolveScope = function resolveScope (el, binding, vnode) {
    if ( vnode === void 0 ) vnode = {};

  var scope = null;
  if (isObject(binding.value)) {
    scope = binding.value.scope;
  }

  if (vnode.child && isNullOrUndefined(scope)) {
    scope = vnode.child.$attrs && vnode.child.$attrs['data-vv-scope'];
  }

  return !isNullOrUndefined(scope) ? scope : getScope(el);
};

/**
 * Checks if the node directives contains a v-model or a specified arg.
 * Args take priority over models.
 *
 * @return {Object}
 */
Generator.resolveModel = function resolveModel (binding, vnode) {
  if (binding.arg) {
    return binding.arg;
  }

  if (isObject(binding.value) && binding.value.arg) {
    return binding.value.arg;
  }

  var model = vnode.data.model || find(vnode.data.directives, function (d) { return d.name === 'model'; });
  if (!model) {
    return null;
  }

  var watchable = /^[a-z_]+[0-9]*(\w*\.[a-z_]\w*)*$/i.test(model.expression) && hasPath(model.expression, vnode.context);

  if (!watchable) {
    return null;
  }

  return model.expression;
};

/**
   * Resolves the field name to trigger validations.
   * @return {String} The field name.
   */
Generator.resolveName = function resolveName (el, vnode) {
  var name = getDataAttribute(el, 'name');

  if (!name && !vnode.child) {
    return el.name;
  }

  if (!name && vnode.child && vnode.child.$attrs) {
    name = vnode.child.$attrs['data-vv-name'] || vnode.child.$attrs['name'];
  }

  if (!name && vnode.child) {
    var config = Generator.getCtorConfig(vnode);
    if (config && isCallable(config.name)) {
      var boundGetter = config.name.bind(vnode.child);

      return boundGetter();
    }

    return vnode.child.name;
  }

  return name;
};

/**
 * Returns a value getter input type.
 */
Generator.resolveGetter = function resolveGetter (el, vnode, model) {
  if (model) {
    return function () {
      return getPath(model, vnode.context);
    };
  }

  if (vnode.child) {
    var path = getDataAttribute(el, 'value-path') || (vnode.child.$attrs && vnode.child.$attrs['data-vv-value-path']);
    if (path) {
      return function () {
        return getPath(path, vnode.child);
      };
    }

    var config = Generator.getCtorConfig(vnode);
    if (config && isCallable(config.value)) {
      var boundGetter = config.value.bind(vnode.child);

      return function () {
        return boundGetter();
      };
    }

    return function () {
      return vnode.child.value;
    };
  }

  switch (el.type) {
  case 'checkbox': return function () {
    var els = document.querySelectorAll(("input[name=\"" + (el.name) + "\"]"));

    els = toArray(els).filter(function (el) { return el.checked; });
    if (!els.length) { return undefined; }

    return els.map(function (checkbox) { return checkbox.value; });
  };
  case 'radio': return function () {
    var els = document.querySelectorAll(("input[name=\"" + (el.name) + "\"]"));
    var elm = find(els, function (el) { return el.checked; });

    return elm && elm.value;
  };
  case 'file': return function (context) {
    return toArray(el.files);
  };
  case 'select-multiple': return function () {
    return toArray(el.options).filter(function (opt) { return opt.selected; }).map(function (opt) { return opt.value; });
  };
  default: return function () {
    return el && el.value;
  };
  }
};

// 

var DEFAULT_OPTIONS = {
  targetOf: null,
  initial: false,
  scope: null,
  listen: true,
  name: null,
  rules: {},
  vm: null,
  classes: false,
  validity: true,
  aria: true,
  events: 'input|blur',
  delay: 0,
  classNames: {
    touched: 'touched', // the control has been blurred
    untouched: 'untouched', // the control hasn't been blurred
    valid: 'valid', // model is valid
    invalid: 'invalid', // model is invalid
    pristine: 'pristine', // control has not been interacted with
    dirty: 'dirty' // control has been interacted with
  }
};

var Field = function Field (el, options) {
  if ( options === void 0 ) options = {};

  this.id = uniqId();
  this.el = el;
  this.updated = false;
  this.dependencies = [];
  this.watchers = [];
  this.events = [];
  this.delay = 0;
  this.rules = {};
  this._cacheId(options);
  options = assign({}, DEFAULT_OPTIONS, options);
  this._delay = typeof options.delay === 'number' ? options.delay : (options.delay && options.delay.global); // cache initial delay
  this.validity = options.validity;
  this.aria = options.aria;
  this.flags = createFlags();
  this.vm = options.vm;
  this.component = options.component;
  this.ctorConfig = this.component ? getPath('$options.$_veeValidate', this.component) : undefined;
  this.update(options);
  this.updated = false;
};

var prototypeAccessors$1 = { validator: {},isRequired: {},isDisabled: {},alias: {},value: {},rejectsFalse: {} };

prototypeAccessors$1.validator.get = function () {
  if (!this.vm || !this.vm.$validator) {
    warn('No validator instance detected.');
    return { validate: function () {} };
  }

  return this.vm.$validator;
};

prototypeAccessors$1.isRequired.get = function () {
  return !!this.rules.required;
};

prototypeAccessors$1.isDisabled.get = function () {
  return !!(this.component && this.component.disabled) || !!(this.el && this.el.disabled);
};

/**
 * Gets the display name (user-friendly name).
 */
prototypeAccessors$1.alias.get = function () {
  if (this._alias) {
    return this._alias;
  }

  var alias = null;
  if (this.el) {
    alias = getDataAttribute(this.el, 'as');
  }

  if (!alias && this.component) {
    return this.component.$attrs && this.component.$attrs['data-vv-as'];
  }

  return alias;
};

/**
 * Gets the input value.
 */

prototypeAccessors$1.value.get = function () {
  if (!isCallable(this.getter)) {
    return undefined;
  }

  return this.getter();
};

/**
 * If the field rejects false as a valid value for the required rule.
 */

prototypeAccessors$1.rejectsFalse.get = function () {
  if (this.component && this.ctorConfig) {
    return !!this.ctorConfig.rejectsFalse;
  }

  if (!this.el) {
    return false;
  }

  return this.el.type === 'checkbox';
};

/**
 * Determines if the instance matches the options provided.
 */
Field.prototype.matches = function matches (options) {
  if (options.id) {
    return this.id === options.id;
  }

  if (options.name === undefined && options.scope === undefined) {
    return true;
  }

  if (options.scope === undefined) {
    return this.name === options.name;
  }

  if (options.name === undefined) {
    return this.scope === options.scope;
  }

  return options.name === this.name && options.scope === this.scope;
};

/**
 * Caches the field id.
 */
Field.prototype._cacheId = function _cacheId (options) {
  if (this.el && !options.targetOf) {
    setDataAttribute(this.el, 'id', this.id); // cache field id if it is independent and has a root element.
  }
};

/**
 * Updates the field with changed data.
 */
Field.prototype.update = function update (options) {
  this.targetOf = options.targetOf || null;
  this.initial = options.initial || this.initial || false;

  // update errors scope if the field scope was changed.
  if (!isNullOrUndefined(options.scope) && options.scope !== this.scope && isCallable(this.validator.update)) {
    this.validator.update(this.id, { scope: options.scope });
  }
  this.scope = !isNullOrUndefined(options.scope) ? options.scope
    : !isNullOrUndefined(this.scope) ? this.scope : null;
  this.name = (!isNullOrUndefined(options.name) ? String(options.name) : options.name) || this.name || null;
  this.rules = options.rules !== undefined ? normalizeRules(options.rules) : this.rules;
  this.model = options.model || this.model;
  this.listen = options.listen !== undefined ? options.listen : this.listen;
  this.classes = (options.classes || this.classes || false) && !this.component;
  this.classNames = options.classNames || this.classNames || DEFAULT_OPTIONS.classNames;
  this.getter = isCallable(options.getter) ? options.getter : this.getter;
  this._alias = options.alias || this._alias;
  this.events = (options.events) ? makeEventsArray(options.events) : this.events;
  this.delay = (options.delay) ? makeDelayObject(this.events, options.delay, this._delay) : makeDelayObject(this.events, this.delay, this._delay);
  this.updateDependencies();
  this.addActionListeners();

  // update required flag flags
  if (options.rules !== undefined) {
    this.flags.required = this.isRequired;
  }

  // validate if it was validated before and field was updated and there was a rules mutation.
  if (this.flags.validated && options.rules !== undefined && this.updated) {
    this.validator.validate(("#" + (this.id)));
  }

  this.updated = true;

  // no need to continue.
  if (!this.el) {
    return;
  }

  this.updateClasses();
  this.addValueListeners();
  this.updateAriaAttrs();
};

/**
 * Resets field flags and errors.
 */
Field.prototype.reset = function reset () {
    var this$1 = this;

  var defaults = createFlags();
  Object.keys(this.flags).forEach(function (flag) {
    this$1.flags[flag] = defaults[flag];
  });

  this.addActionListeners();
  this.updateClasses();
  this.updateAriaAttrs();
  this.updateCustomValidity();
};

/**
 * Sets the flags and their negated counterparts, and updates the classes and re-adds action listeners.
 */
Field.prototype.setFlags = function setFlags (flags) {
    var this$1 = this;

  var negated = {
    pristine: 'dirty',
    dirty: 'pristine',
    valid: 'invalid',
    invalid: 'valid',
    touched: 'untouched',
    untouched: 'touched'
  };

  Object.keys(flags).forEach(function (flag) {
    this$1.flags[flag] = flags[flag];
    // if it has a negation and was not specified, set it as well.
    if (negated[flag] && flags[negated[flag]] === undefined) {
      this$1.flags[negated[flag]] = !flags[flag];
    }
  });

  if (
    flags.untouched !== undefined ||
    flags.touched !== undefined ||
    flags.dirty !== undefined ||
    flags.pristine !== undefined
  ) {
    this.addActionListeners();
  }
  this.updateClasses();
  this.updateAriaAttrs();
  this.updateCustomValidity();
};

/**
 * Determines if the field requires references to target fields.
*/
Field.prototype.updateDependencies = function updateDependencies () {
    var this$1 = this;

  // reset dependencies.
  this.dependencies.forEach(function (d) { return d.field.destroy(); });
  this.dependencies = [];

  // we get the selectors for each field.
  var fields = Object.keys(this.rules).reduce(function (prev, r) {
    if (r === 'confirmed') {
      prev.push({ selector: this$1.rules[r][0] || ((this$1.name) + "_confirmation"), name: r });
    } else if (Validator.isTargetRule(r)) {
      prev.push({ selector: this$1.rules[r][0], name: r });
    }

    return prev;
  }, []);

  if (!fields.length || !this.vm || !this.vm.$el) { return; }

  // must be contained within the same component, so we use the vm root element constrain our dom search.
  fields.forEach(function (ref) {
      var selector = ref.selector;
      var name = ref.name;

    var el = null;
    // vue ref selector.
    if (selector[0] === '$') {
      el = this$1.vm.$refs[selector.slice(1)];
    } else {
      try {
        // try query selector
        el = this$1.vm.$el.querySelector(selector);
      } catch (err) {
        el = null;
      }
    }

    if (!el) {
      try {
        el = this$1.vm.$el.querySelector(("input[name=\"" + selector + "\"]"));
      } catch (err) {
        el = null;
      }
    }

    if (!el) {
      return;
    }

    var options = {
      vm: this$1.vm,
      classes: this$1.classes,
      classNames: this$1.classNames,
      delay: this$1.delay,
      scope: this$1.scope,
      events: this$1.events.join('|'),
      initial: this$1.initial,
      targetOf: this$1.id
    };

    // probably a component.
    if (isCallable(el.$watch)) {
      options.component = el;
      options.el = el.$el;
      options.getter = Generator.resolveGetter(el.$el, { child: el });
    } else {
      options.el = el;
      options.getter = Generator.resolveGetter(el, {});
    }

    this$1.dependencies.push({ name: name, field: new Field(options.el, options) });
  });
};

/**
 * Removes listeners.
 */
Field.prototype.unwatch = function unwatch (tag) {
    if ( tag === void 0 ) tag = null;

  if (!tag) {
    this.watchers.forEach(function (w) { return w.unwatch(); });
    this.watchers = [];
    return;
  }

  this.watchers.filter(function (w) { return tag.test(w.tag); }).forEach(function (w) { return w.unwatch(); });
  this.watchers = this.watchers.filter(function (w) { return !tag.test(w.tag); });
};

/**
 * Updates the element classes depending on each field flag status.
 */
Field.prototype.updateClasses = function updateClasses () {
  if (!this.classes) { return; }

  toggleClass(this.el, this.classNames.dirty, this.flags.dirty);
  toggleClass(this.el, this.classNames.pristine, this.flags.pristine);
  toggleClass(this.el, this.classNames.valid, !!this.flags.valid);
  toggleClass(this.el, this.classNames.invalid, !!this.flags.invalid);
  toggleClass(this.el, this.classNames.touched, this.flags.touched);
  toggleClass(this.el, this.classNames.untouched, this.flags.untouched);
};

/**
 * Adds the listeners required for automatic classes and some flags.
 */
Field.prototype.addActionListeners = function addActionListeners () {
    var this$1 = this;

  // remove previous listeners.
  this.unwatch(/class/);

  var onBlur = function () {
    this$1.flags.touched = true;
    this$1.flags.untouched = false;
    if (this$1.classes) {
      toggleClass(this$1.el, this$1.classNames.touched, true);
      toggleClass(this$1.el, this$1.classNames.untouched, false);
    }

    // only needed once.
    this$1.unwatch(/^class_blur$/);
  };

  var inputEvent = getInputEventName(this.el);
  var onInput = function () {
    this$1.flags.dirty = true;
    this$1.flags.pristine = false;
    if (this$1.classes) {
      toggleClass(this$1.el, this$1.classNames.pristine, false);
      toggleClass(this$1.el, this$1.classNames.dirty, true);
    }

    // only needed once.
    this$1.unwatch(/^class_input$/);
  };

  if (this.component && isCallable(this.component.$once)) {
    this.component.$once('input', onInput);
    this.component.$once('blur', onBlur);
    this.watchers.push({
      tag: 'class_input',
      unwatch: function () {
        this$1.component.$off('input', onInput);
      }
    });
    this.watchers.push({
      tag: 'class_blur',
      unwatch: function () {
        this$1.component.$off('blur', onBlur);
      }
    });
    return;
  }

  if (!this.el) { return; }

  this.el.addEventListener(inputEvent, onInput);
  // Checkboxes and radio buttons on Mac don't emit blur naturally, so we listen on click instead.
  var blurEvent = ['radio', 'checkbox'].indexOf(this.el.type) === -1 ? 'blur' : 'click';
  this.el.addEventListener(blurEvent, onBlur);
  this.watchers.push({
    tag: 'class_input',
    unwatch: function () {
      this$1.el.removeEventListener(inputEvent, onInput);
    }
  });

  this.watchers.push({
    tag: 'class_blur',
    unwatch: function () {
      this$1.el.removeEventListener(blurEvent, onBlur);
    }
  });
};

/**
 * Adds the listeners required for validation.
 */
Field.prototype.addValueListeners = function addValueListeners () {
    var this$1 = this;

  this.unwatch(/^input_.+/);
  if (!this.listen) { return; }

  var fn = this.targetOf ? function () {
    this$1.validator.validate(("#" + (this$1.targetOf)));
  } : function () {
      var args = [], len = arguments.length;
      while ( len-- ) args[ len ] = arguments[ len ];

    // if its a DOM event, resolve the value, otherwise use the first parameter as the value.
    if (args.length === 0 || (isCallable(Event) && args[0] instanceof Event) || (args[0] && args[0].srcElement)) {
      args[0] = this$1.value;
    }
    this$1.validator.validate(("#" + (this$1.id)), args[0]);
  };

  var inputEvent = getInputEventName(this.el);
  // replace input event with suitable one.
  var events = this.events.map(function (e) {
    return e === 'input' ? inputEvent : e;
  });

  // if there is a watchable model and an on input validation is requested.
  if (this.model && events.indexOf(inputEvent) !== -1) {
    var debouncedFn = debounce(fn, this.delay[inputEvent]);
    var unwatch = this.vm.$watch(this.model, function () {
        var args = [], len = arguments.length;
        while ( len-- ) args[ len ] = arguments[ len ];

      this$1.flags.pending = true;
      debouncedFn.apply(void 0, args);
    });
    this.watchers.push({
      tag: 'input_model',
      unwatch: unwatch
    });
    // filter out input event as it is already handled by the watcher API.
    events = events.filter(function (e) { return e !== inputEvent; });
  }

  // Add events.
  events.forEach(function (e) {
    var debouncedFn = debounce(fn, this$1.delay[e]);
    var validate = function () {
        var args = [], len = arguments.length;
        while ( len-- ) args[ len ] = arguments[ len ];

      this$1.flags.pending = true;
      debouncedFn.apply(void 0, args);
    };

    if (this$1.component) {
      this$1.component.$on(e, validate);
      this$1.watchers.push({
        tag: 'input_vue',
        unwatch: function () {
          this$1.component.$off(e, validate);
        }
      });
      return;
    }

    if (~['radio', 'checkbox'].indexOf(this$1.el.type)) {
      var els = document.querySelectorAll(("input[name=\"" + (this$1.el.name) + "\"]"));
      toArray(els).forEach(function (el) {
        el.addEventListener(e, validate);
        this$1.watchers.push({
          tag: 'input_native',
          unwatch: function () {
            el.removeEventListener(e, validate);
          }
        });
      });

      return;
    }

    this$1.el.addEventListener(e, validate);
    this$1.watchers.push({
      tag: 'input_native',
      unwatch: function () {
        this$1.el.removeEventListener(e, validate);
      }
    });
  });
};

/**
 * Updates aria attributes on the element.
 */
Field.prototype.updateAriaAttrs = function updateAriaAttrs () {
  if (!this.aria || !this.el || !isCallable(this.el.setAttribute)) { return; }

  this.el.setAttribute('aria-required', this.isRequired ? 'true' : 'false');
  this.el.setAttribute('aria-invalid', this.flags.invalid ? 'true' : 'false');
};

/**
 * Updates the custom validity for the field.
 */
Field.prototype.updateCustomValidity = function updateCustomValidity () {
  if (!this.validity || !this.el || !isCallable(this.el.setCustomValidity)) { return; }

  this.el.setCustomValidity(this.flags.valid ? '' : (this.validator.errors.firstById(this.id) || ''));
};

/**
 * Removes all listeners.
 */
Field.prototype.destroy = function destroy () {
  this.watchers.forEach(function (w) { return w.unwatch(); });
  this.watchers = [];
  this.dependencies.forEach(function (d) { return d.field.destroy(); });
  this.dependencies = [];
};

Object.defineProperties( Field.prototype, prototypeAccessors$1 );

// 

var FieldBag = function FieldBag () {
  this.items = [];
};

var prototypeAccessors$4 = { length: {} };

/**
 * Gets the current items length.
 */

prototypeAccessors$4.length.get = function () {
  return this.items.length;
};

/**
 * Finds the first field that matches the provided matcher object.
 */
FieldBag.prototype.find = function find$1 (matcher) {
  return find(this.items, function (item) { return item.matches(matcher); });
};

/**
 * Filters the items down to the matched fields.
 */
FieldBag.prototype.filter = function filter (matcher) {
  // multiple matchers to be tried.
  if (Array.isArray(matcher)) {
    return this.items.filter(function (item) { return matcher.some(function (m) { return item.matches(m); }); });
  }

  return this.items.filter(function (item) { return item.matches(matcher); });
};

/**
 * Maps the field items using the mapping function.
 */
FieldBag.prototype.map = function map (mapper) {
  return this.items.map(mapper);
};

/**
 * Finds and removes the first field that matches the provided matcher object, returns the removed item.
 */
FieldBag.prototype.remove = function remove (matcher) {
  var item = null;
  if (matcher instanceof Field) {
    item = matcher;
  } else {
    item = this.find(matcher);
  }

  if (!item) { return null; }

  var index = this.items.indexOf(item);
  this.items.splice(index, 1);

  return item;
};

/**
 * Adds a field item to the list.
 */
FieldBag.prototype.push = function push (item) {
  if (! (item instanceof Field)) {
    throw createError('FieldBag only accepts instances of Field that has an id defined.');
  }

  if (!item.id) {
    throw createError('Field id must be defined.');
  }

  if (this.find({ id: item.id })) {
    throw createError(("Field with id " + (item.id) + " is already added."));
  }

  this.items.push(item);
};

Object.defineProperties( FieldBag.prototype, prototypeAccessors$4 );

// 

var RULES = {};
var STRICT_MODE = true;
var TARGET_RULES = ['confirmed', 'after', 'before'];
var ERRORS = []; // HOLD errors references to trigger regeneration.

var Validator = function Validator (validations, options) {
  var this$1 = this;
  if ( options === void 0 ) options = { vm: null, fastExit: true };

  this.strict = STRICT_MODE;
  this.errors = new ErrorBag();
  ERRORS.push(this.errors);
  this.fields = new FieldBag();
  this.flags = {};
  this._createFields(validations);
  this.paused = false;
  this.fastExit = options.fastExit || false;
  this.ownerId = options.vm && options.vm._uid;
  // create it statically since we don't need constant access to the vm.
  this.reset = options.vm && isCallable(options.vm.$nextTick) ? function (matcher) {
    return new Promise(function (resolve) {
      options.vm.$nextTick(function () {
        resolve(this$1._reset(matcher));
      });
    });
  } : this._reset;
};

var prototypeAccessors = { dictionary: {},locale: {},rules: {} };
var staticAccessors = { dictionary: {},locale: {},rules: {} };

/**
 * Getter for the dictionary.
 */
prototypeAccessors.dictionary.get = function () {
  return Config.dependency('dictionary');
};

/**
 * Static Getter for the dictionary.
 */
staticAccessors.dictionary.get = function () {
  return Config.dependency('dictionary');
};

/**
 * Getter for the current locale.
 */
prototypeAccessors.locale.get = function () {
  return this.dictionary.locale;
};

/**
 * Setter for the validator locale.
 */
prototypeAccessors.locale.set = function (value) {
  Validator.locale = value;
};

/**
* Static getter for the validator locale.
*/
staticAccessors.locale.get = function () {
  return Validator.dictionary.locale;
};

/**
 * Static setter for the validator locale.
 */
staticAccessors.locale.set = function (value) {
  var hasChanged = value !== Validator.dictionary.locale;
  Validator.dictionary.locale = value;
  if (hasChanged) {
    Validator.regenerate();
  }
};

/**
 * Getter for the rules object.
 */
prototypeAccessors.rules.get = function () {
  return RULES;
};

/**
 * Static Getter for the rules object.
 */
staticAccessors.rules.get = function () {
  return RULES;
};

/**
 * Static constructor.
 */
Validator.create = function create (validations, options) {
  return new Validator(validations, options);
};

/**
 * Adds a custom validator to the list of validation rules.
 */
Validator.extend = function extend (name, validator, options) {
    if ( options === void 0 ) options = {};

  Validator._guardExtend(name, validator);
  Validator._merge(name, validator);
  if (options && options.hasTarget) {
    TARGET_RULES.push(name);
  }
};

/**
 * Regenerates error messages across all validators.
 */
Validator.regenerate = function regenerate () {
  ERRORS.forEach(function (errorBag) { return errorBag.regenerate(); });
};

/**
 * Removes a rule from the list of validators.
 */
Validator.remove = function remove (name) {
  delete RULES[name];
  var idx = TARGET_RULES.indexOf(name);
  if (idx === -1) { return; }

  TARGET_RULES.splice(idx, 1);
};

/**
 * Checks if the given rule name is a rule that targets other fields.
 */
Validator.isTargetRule = function isTargetRule (name) {
  return TARGET_RULES.indexOf(name) !== -1;
};

/**
 * Sets the operating mode for all newly created validators.
 * strictMode = true: Values without a rule are invalid and cause failure.
 * strictMode = false: Values without a rule are valid and are skipped.
 */
Validator.setStrictMode = function setStrictMode (strictMode) {
    if ( strictMode === void 0 ) strictMode = true;

  STRICT_MODE = strictMode;
};

/**
 * Adds and sets the current locale for the validator.
 */
Validator.prototype.localize = function localize (lang, dictionary) {
  Validator.localize(lang, dictionary);
};

/**
 * Adds and sets the current locale for the validator.
 */
Validator.localize = function localize (lang, dictionary) {
  if (isObject(lang)) {
    Validator.dictionary.merge(lang);
    return;
  }

  // merge the dictionary.
  if (dictionary) {
    var locale = lang || dictionary.name;
    dictionary = assign({}, dictionary);
    Validator.dictionary.merge(( obj = {}, obj[locale] = dictionary, obj ));
      var obj;
  }

  if (lang) {
    // set the locale.
    Validator.locale = lang;
  }
};

/**
 * Registers a field to be validated.
 */
Validator.prototype.attach = function attach (field) {
  // deprecate: handle old signature.
  if (arguments.length > 1) {
    field = assign({}, {
      name: arguments[0],
      rules: arguments[1]
    }, arguments[2] || { vm: { $validator: this } });
  }

  // fixes initial value detection with v-model and select elements.
  var value = field.initialValue;
  if (!(field instanceof Field)) {
    field = new Field(field.el || null, field);
  }

  this.fields.push(field);

  // validate the field initially
  if (field.initial) {
    this.validate(("#" + (field.id)), value || field.value);
  } else {
    this._validate(field, value || field.value, true).then(function (result) {
      field.flags.valid = result.valid;
      field.flags.invalid = !result.valid;
    });
  }

  this._addFlag(field, field.scope);
  return field;
};

/**
 * Sets the flags on a field.
 */
Validator.prototype.flag = function flag (name, flags) {
  var field = this._resolveField(name);
  if (! field || !flags) {
    return;
  }

  field.setFlags(flags);
};

/**
 * Removes a field from the validator.
 */
Validator.prototype.detach = function detach (name, scope) {
  var field = name instanceof Field ? name : this._resolveField(name, scope);
  if (!field) { return; }

  field.destroy();
  this.errors.remove(field.name, field.scope, field.id);
  this.fields.remove(field);
  var flags = this.flags;
  if (!isNullOrUndefined(field.scope) && flags[("$" + (field.scope))]) {
    delete flags[("$" + (field.scope))][field.name];
  } else if (isNullOrUndefined(field.scope)) {
    delete flags[field.name];
  }

  this.flags = assign({}, flags);
};

/**
 * Adds a custom validator to the list of validation rules.
 */
Validator.prototype.extend = function extend (name, validator, options) {
    if ( options === void 0 ) options = {};

  Validator.extend(name, validator, options);
};

/**
 * Updates a field, updating both errors and flags.
 */
Validator.prototype.update = function update (id, ref) {
    var scope = ref.scope;

  var field = this._resolveField(("#" + id));
  if (!field) { return; }

  // remove old scope.
  this.errors.update(id, { scope: scope });
  if (!isNullOrUndefined(field.scope) && this.flags[("$" + (field.scope))]) {
    delete this.flags[("$" + (field.scope))][field.name];
  } else if (isNullOrUndefined(field.scope)) {
    delete this.flags[field.name];
  }

  this._addFlag(field, scope);
};

/**
 * Removes a rule from the list of validators.
 */
Validator.prototype.remove = function remove (name) {
  Validator.remove(name);
};

/**
 * Validates a value against a registered field validations.
 */
Validator.prototype.validate = function validate (name, value, scope) {
    var this$1 = this;
    if ( scope === void 0 ) scope = null;

  if (this.paused) { return Promise.resolve(true); }

  // overload to validate all.
  if (arguments.length === 0) {
    return this.validateScopes();
  }

  // overload to validate scope-less fields.
  if (arguments.length === 1 && arguments[0] === '*') {
    return this.validateAll();
  }

  // overload to validate a scope.
  if (arguments.length === 1 && typeof arguments[0] === 'string' && /^(.+)\.\*$/.test(arguments[0])) {
    var matched = arguments[0].match(/^(.+)\.\*$/)[1];
    return this.validateAll(matched);
  }

  var field = this._resolveField(name, scope);
  if (!field) {
    return this._handleFieldNotFound(name, scope);
  }

  field.flags.pending = true;
  if (arguments.length === 1) {
    value = field.value;
  }

  var silentRun = field.isDisabled;

  return this._validate(field, value, silentRun).then(function (result) {
    field.setFlags({
      pending: false,
      valid: result.valid,
      validated: true
    });

    this$1.errors.remove(field.name, field.scope, field.id);
    if (silentRun) {
      return Promise.resolve(true);
    } else if (result.errors) {
      result.errors.forEach(function (e) { return this$1.errors.add(e); });
    }

    return result.valid;
  });
};

/**
 * Pauses the validator.
 */
Validator.prototype.pause = function pause () {
  this.paused = true;

  return this;
};

/**
 * Resumes the validator.
 */
Validator.prototype.resume = function resume () {
  this.paused = false;

  return this;
};

/**
 * Validates each value against the corresponding field validations.
 */
Validator.prototype.validateAll = function validateAll (values) {
    var arguments$1 = arguments;
    var this$1 = this;

  if (this.paused) { return Promise.resolve(true); }

  var matcher = null;
  var providedValues = false;

  if (typeof values === 'string') {
    matcher = { scope: values };
  } else if (isObject(values)) {
    matcher = Object.keys(values).map(function (key) {
      return { name: key, scope: arguments$1[1] || null };
    });
    providedValues = true;
  } else if (arguments.length === 0) {
    matcher = { scope: null }; // global scope.
  } else if (Array.isArray(values)) {
    matcher = values.map(function (key) {
      return { name: key, scope: arguments$1[1] || null };
    });
  }

  var promises = this.fields.filter(matcher).map(function (field) { return this$1.validate(
    ("#" + (field.id)),
    providedValues ? values[field.name] : field.value
  ); });

  return Promise.all(promises).then(function (results) { return results.every(function (t) { return t; }); });
};

/**
 * Validates all scopes.
 */
Validator.prototype.validateScopes = function validateScopes () {
    var this$1 = this;

  if (this.paused) { return Promise.resolve(true); }

  var promises = this.fields.map(function (field) { return this$1.validate(
    ("#" + (field.id)),
    field.value
  ); });

  return Promise.all(promises).then(function (results) { return results.every(function (t) { return t; }); });
};

/**
 * Perform cleanup.
 */
Validator.prototype.destroy = function destroy () {
  // Remove ErrorBag instance.
  var idx = ERRORS.indexOf(this.errors);
  if (idx === -1) { return; }

  ERRORS.splice(idx, 1);
};

/**
 * Creates the fields to be validated.
 */
Validator.prototype._createFields = function _createFields (validations) {
    var this$1 = this;

  if (!validations) { return; }

  Object.keys(validations).forEach(function (field) {
    var options = assign({}, { name: field, rules: validations[field] });
    this$1.attach(options);
  });
};

/**
 * Date rules need the existence of a format, so date_format must be supplied.
 */
Validator.prototype._getDateFormat = function _getDateFormat (validations) {
  var format = null;
  if (validations.date_format && Array.isArray(validations.date_format)) {
    format = validations.date_format[0];
  }

  return format || this.dictionary.getDateFormat(this.locale);
};

/**
 * Checks if the passed rule is a date rule.
 */
Validator.prototype._isADateRule = function _isADateRule (rule) {
  return !! ~['after', 'before', 'date_between', 'date_format'].indexOf(rule);
};

/**
 * Formats an error message for field and a rule.
 */
Validator.prototype._formatErrorMessage = function _formatErrorMessage (field, rule, data, targetName) {
    if ( data === void 0 ) data = {};
    if ( targetName === void 0 ) targetName = null;

  var name = this._getFieldDisplayName(field);
  var params = this._getLocalizedParams(rule, targetName);

  return this.dictionary.getFieldMessage(this.locale, field.name, rule.name, [name, params, data]);
};

/**
 * Translates the parameters passed to the rule (mainly for target fields).
 */
Validator.prototype._getLocalizedParams = function _getLocalizedParams (rule, targetName) {
    if ( targetName === void 0 ) targetName = null;

  if (~TARGET_RULES.indexOf(rule.name) && rule.params && rule.params[0]) {
    var localizedName = targetName || this.dictionary.getAttribute(this.locale, rule.params[0], rule.params[0]);
    return [localizedName].concat(rule.params.slice(1));
  }

  return rule.params;
};

/**
 * Resolves an appropriate display name, first checking 'data-as' or the registered 'prettyName'
 */
Validator.prototype._getFieldDisplayName = function _getFieldDisplayName (field) {
  return field.alias || this.dictionary.getAttribute(this.locale, field.name, field.name);
};

/**
 * Adds a field flags to the flags collection.
 */
Validator.prototype._addFlag = function _addFlag (field, scope) {
    if ( scope === void 0 ) scope = null;

  if (isNullOrUndefined(scope)) {
    this.flags = assign({}, this.flags, ( obj = {}, obj[("" + (field.name))] = field.flags, obj ));
      var obj;
    return;
  }

  var scopeObj = assign({}, this.flags[("$" + scope)] || {}, ( obj$1 = {}, obj$1[("" + (field.name))] = field.flags, obj$1 ));
    var obj$1;
  this.flags = assign({}, this.flags, ( obj$2 = {}, obj$2[("$" + scope)] = scopeObj, obj$2 ));
    var obj$2;
};

/**
 * Resets fields that matches the matcher options or all fields if not specified.
 */
Validator.prototype._reset = function _reset (matcher) {
    var this$1 = this;

  return new Promise(function (resolve) {
    if (matcher) {
      this$1.fields.filter(matcher).forEach(function (field) {
        field.reset(); // reset field flags.
        this$1.errors.remove(field.name, field.scope, field.id);
      });

      return resolve();
    }

    this$1.fields.items.forEach(function (i) { return i.reset(); });
    this$1.errors.clear();
    resolve();
  });
};

/**
 * Tests a single input value against a rule.
 */
Validator.prototype._test = function _test (field, value, rule) {
    var this$1 = this;

  var validator = RULES[rule.name];
  var params = Array.isArray(rule.params) ? toArray(rule.params) : [];
  var targetName = null;
  if (!validator || typeof validator !== 'function') {
    throw createError(("No such validator '" + (rule.name) + "' exists."));
  }

  // has field dependencies.
  if (TARGET_RULES.indexOf(rule.name) !== -1) {
    var target = find(field.dependencies, function (d) { return d.name === rule.name; });
    if (target) {
      targetName = target.field.alias;
      params = [target.field.value].concat(params.slice(1));
    }
  } else if (rule.name === 'required' && field.rejectsFalse) {
    // invalidate false if no args were specified and the field rejects false by default.
    params = params.length ? params : [true];
  }

  if (this._isADateRule(rule.name)) {
    var dateFormat = this._getDateFormat(field.rules);
    if (rule.name !== 'date_format') {
      params.push(dateFormat);
    }
  }

  var result = validator(value, params);

  // If it is a promise.
  if (isCallable(result.then)) {
    return result.then(function (values) {
      var allValid = true;
      var data = {};
      if (Array.isArray(values)) {
        allValid = values.every(function (t) { return (isObject(t) ? t.valid : t); });
      } else { // Is a single object/boolean.
        allValid = isObject(values) ? values.valid : values;
        data = values.data;
      }

      return {
        valid: allValid,
        error: allValid ? undefined : this$1._createFieldError(field, rule, data, targetName)
      };
    });
  }

  if (!isObject(result)) {
    result = { valid: result, data: {} };
  }

  return {
    valid: result.valid,
    error: result.valid ? undefined : this._createFieldError(field, rule, result.data, targetName)
  };
};

/**
 * Merges a validator object into the RULES and Messages.
 */
Validator._merge = function _merge (name, validator) {
  if (isCallable(validator)) {
    RULES[name] = validator;
    return;
  }

  RULES[name] = validator.validate;
  if (validator.getMessage) {
    Validator.dictionary.setMessage(this.locale, name, validator.getMessage);
  }
};

/**
 * Guards from extension violations.
 */
Validator._guardExtend = function _guardExtend (name, validator) {
  if (isCallable(validator)) {
    return;
  }

  if (!isCallable(validator.validate)) {
    throw createError(
      ("Extension Error: The validator '" + name + "' must be a function or have a 'validate' method.")
    );
  }

  if (!isCallable(validator.getMessage) && typeof validator.getMessage !== 'string') {
    throw createError(
      ("Extension Error: The validator '" + name + "' object must have a 'getMessage' method or string.")
    );
  }
};

/**
 * Creates a Field Error Object.
 */
Validator.prototype._createFieldError = function _createFieldError (field, rule, data, targetName) {
    var this$1 = this;

  return {
    id: field.id,
    field: field.name,
    msg: this._formatErrorMessage(field, rule, data, targetName),
    rule: rule.name,
    scope: field.scope,
    regenerate: function () {
      return this$1._formatErrorMessage(field, rule, data, targetName);
    }
  };
};

/**
 * Tries different strategies to find a field.
 */
Validator.prototype._resolveField = function _resolveField (name, scope) {
  if (!isNullOrUndefined(scope)) {
    return this.fields.find({ name: name, scope: scope });
  }

  if (name[0] === '#') {
    return this.fields.find({ id: name.slice(1) });
  }

  if (name.indexOf('.') > -1) {
    var ref = name.split('.');
      var fieldScope = ref[0];
      var fieldName = ref.slice(1);
    var field = this.fields.find({ name: fieldName.join('.'), scope: fieldScope });
    if (field) {
      return field;
    }
  }

  return this.fields.find({ name: name, scope: null });
};

/**
 * Handles when a field is not found depending on the strict flag.
 */
Validator.prototype._handleFieldNotFound = function _handleFieldNotFound (name, scope) {
  if (!this.strict) { return Promise.resolve(true); }

  var fullName = isNullOrUndefined(scope) ? name : ("" + (!isNullOrUndefined(scope) ? scope + '.' : '') + name);
  throw createError(
    ("Validating a non-existent field: \"" + fullName + "\". Use \"attach()\" first.")
  );
};

/**
 * Starts the validation process.
 */
Validator.prototype._validate = function _validate (field, value, silent) {
    var this$1 = this;
    if ( silent === void 0 ) silent = false;

  if (!field.isRequired && (isNullOrUndefined(value) || value === '')) {
    return Promise.resolve({ valid: true });
  }

  var promises = [];
  var errors = [];
  var isExitEarly = false;
  // use of '.some()' is to break iteration in middle by returning true
  Object.keys(field.rules).some(function (rule) {
    var result = this$1._test(field, value, { name: rule, params: field.rules[rule] });
    if (isCallable(result.then)) {
      promises.push(result);
    } else if (this$1.fastExit && !result.valid) {
      errors.push(result.error);
      isExitEarly = true;
    } else {
      // promisify the result.
      promises.push(new Promise(function (resolve) {
        resolve(result);
      }));
    }

    return isExitEarly;
  });

  if (isExitEarly) {
    return Promise.resolve({
      valid: false,
      errors: errors
    });
  }

  return Promise.all(promises).then(function (values) { return values.map(function (v) {
    if (!v.valid) {
      errors.push(v.error);
    }

    return v.valid;
  }).every(function (t) { return t; }); }
  ).then(function (result) {
    return {
      valid: result,
      errors: errors
    };
  });
};

Object.defineProperties( Validator.prototype, prototypeAccessors );
Object.defineProperties( Validator, staticAccessors );

// 

/* istanbul ignore next */
var fakeFlags = createProxy({}, {
  get: function get (target, key) {
    // is a scope
    if (String(key).indexOf('$') === 0) {
      return fakeFlags;
    }

    return createFlags();
  }
});

/**
 * Checks if a parent validator instance was requested.
 */
var requestsValidator = function (injections) {
  if (! injections) {
    return false;
  }

  /* istanbul ignore next */
  if (Array.isArray(injections) && ~injections.indexOf('$validator')) {
    return true;
  }

  if (isObject(injections) && injections.$validator) {
    return true;
  }

  return false;
};

/**
 * Creates a validator instance.
 */
var createValidator = function (vm, options) { return new Validator(null, { vm: vm, fastExit: options.fastExit }); };

var mixin = {
  provide: function provide () {
    if (this.$validator && !isBuiltInComponent(this.$vnode)) {
      return {
        $validator: this.$validator
      };
    }

    return {};
  },
  beforeCreate: function beforeCreate () {
    // if built in do nothing.
    if (isBuiltInComponent(this.$vnode)) {
      return;
    }

    // if its a root instance set the config if it exists.
    if (!this.$parent) {
      Config.merge(this.$options.$_veeValidate || {});
    }

    var options = Config.resolve(this);
    var Vue = this.$options._base; // the vue constructor.
    // TODO: Deprecate
    /* istanbul ignore next */
    if (this.$options.$validates) {
      warn('The ctor $validates option has been deprecated please set the $_veeValidate.validator option to "new" instead');
      this.$validator = createValidator(this, options);
    }

    // if its a root instance, inject anyways, or if it requested a new instance.
    if (!this.$parent || (this.$options.$_veeValidate && /new/.test(this.$options.$_veeValidate.validator))) {
      this.$validator = createValidator(this, options);
    }

    var requested = requestsValidator(this.$options.inject);

    // if automatic injection is enabled and no instance was requested.
    if (! this.$validator && options.inject && !requested) {
      this.$validator = createValidator(this, options);
    }

    // don't inject errors or fieldBag as no validator was resolved.
    if (! requested && ! this.$validator) {
      return;
    }

    // There is a validator but it isn't injected, mark as reactive.
    if (! requested && this.$validator) {
      Vue.util.defineReactive(this.$validator, 'errors', this.$validator.errors);
      Vue.util.defineReactive(this.$validator, 'flags', this.$validator.flags);
    }

    if (! this.$options.computed) {
      this.$options.computed = {};
    }

    this.$options.computed[options.errorBagName || 'errors'] = function errorBagGetter () {
      return this.$validator.errors;
    };
    this.$options.computed[options.fieldsBagName || 'fields'] = function fieldBagGetter () {
      if (!Object.keys(this.$validator.flags).length) {
        return fakeFlags;
      }

      return this.$validator.flags;
    };
  },

  beforeDestroy: function beforeDestroy () {
    if (isBuiltInComponent(this.$vnode)) { return; }

    // mark the validator paused to prevent delayed validation.
    if (this.$validator && this.$validator.ownerId === this._uid) {
      this.$validator.pause();
      this.$validator.destroy();
    }
  }
};

// 

/**
 * Finds the requested field by id from the context object.
 */
var findField = function (el, context) {
  if (!context || !context.$validator) {
    return null;
  }

  return context.$validator.fields.find({ id: getDataAttribute(el, 'id') });
};

var directive = {
  bind: function bind (el, binding, vnode) {
    var validator = vnode.context.$validator;
    if (! validator) {
      warn("No validator instance is present on vm, did you forget to inject '$validator'?");
      return;
    }

    var fieldOptions = Generator.generate(el, binding, vnode);
    validator.attach(fieldOptions);
  },
  inserted: function (el, binding, vnode) {
    var field = findField(el, vnode.context);
    var scope = Generator.resolveScope(el, binding, vnode);

    // skip if scope hasn't changed.
    if (!field || scope === field.scope) { return; }

    // only update scope.
    field.update({ scope: scope });

    // allows the field to re-evaluated once more in the update hook.
    field.updated = false;
  },
  update: function (el, binding, vnode) {
    var field = findField(el, vnode.context);

    // make sure we don't do unneccasary work if no important change was done.
    if (!field || (field.updated && isEqual$1(binding.value, binding.oldValue))) { return; }
    var scope = Generator.resolveScope(el, binding, vnode);
    var rules = Generator.resolveRules(el, binding);

    field.update({
      scope: scope,
      rules: rules
    });
  },
  unbind: function unbind (el, binding, ref) {
    var context = ref.context;

    var field = findField(el, context);
    if (!field) { return; }

    context.$validator.detach(field);
  }
};

var Vue;

function install (_Vue, options) {
  if ( options === void 0 ) options = {};

  if (Vue) {
    warn('already installed, Vue.use(VeeValidate) should only be called once.');
    return;
  }

  Vue = _Vue;
  Config.merge(options);
  var ref = Config.current;
  var locale = ref.locale;
  var dictionary = ref.dictionary;
  var i18n = ref.i18n;

  if (dictionary) {
    Validator.localize(dictionary); // merge the dictionary.
  }

  // try to watch locale changes.
  if (i18n && i18n._vm && isCallable(i18n._vm.$watch)) {
    i18n._vm.$watch('locale', function () {
      Validator.regenerate();
    });
  }

  Validator.localize(locale); // set the locale
  Validator.setStrictMode(Config.current.strict);

  Vue.mixin(mixin);
  Vue.directive('validate', directive);
}

// 

function use (plugin, options) {
  if ( options === void 0 ) options = {};

  if (!isCallable(plugin)) {
    return warn('The plugin must be a callable function');
  }

  plugin({ Validator: Validator, ErrorBag: ErrorBag, Rules: Validator.rules }, options);
}

// 

var normalize = function (fields) {
  if (Array.isArray(fields)) {
    return fields.reduce(function (prev, curr) {
      if (~curr.indexOf('.')) {
        prev[curr.split('.')[1]] = curr;
      } else {
        prev[curr] = curr;
      }

      return prev;
    }, {});
  }

  return fields;
};

// Combines two flags using either AND or OR depending on the flag type.
var combine = function (lhs, rhs) {
  var mapper = {
    pristine: function (lhs, rhs) { return lhs && rhs; },
    dirty: function (lhs, rhs) { return lhs || rhs; },
    touched: function (lhs, rhs) { return lhs || rhs; },
    untouched: function (lhs, rhs) { return lhs && rhs; },
    valid: function (lhs, rhs) { return lhs && rhs; },
    invalid: function (lhs, rhs) { return lhs || rhs; },
    pending: function (lhs, rhs) { return lhs || rhs; },
    required: function (lhs, rhs) { return lhs || rhs; },
    validated: function (lhs, rhs) { return lhs && rhs; }
  };

  return Object.keys(mapper).reduce(function (flags, flag) {
    flags[flag] = mapper[flag](lhs[flag], rhs[flag]);

    return flags;
  }, {});
};

var mapScope = function (scope, deep) {
  if ( deep === void 0 ) deep = true;

  return Object.keys(scope).reduce(function (flags, field) {
    if (!flags) {
      flags = assign({}, scope[field]);
      return flags;
    }

    // scope.
    var isScope = field.indexOf('$') === 0;
    if (deep && isScope) {
      flags = mapScope(scope[field]);
      return flags;
    } else if (!deep && isScope) {
      return flags;
    }

    flags = combine(flags, scope[field]);

    return flags;
  }, null);
};

/**
 * Maps fields to computed functions.
 */
var mapFields = function (fields) {
  if (!fields) {
    return function () {
      return mapScope(this.$validator.flags);
    };
  }

  var normalized = normalize(fields);
  return Object.keys(normalized).reduce(function (prev, curr) {
    var field = normalized[curr];
    prev[curr] = function mappedField () {
      // if field exists
      if (this.$validator.flags[field]) {
        return this.$validator.flags[field];
      }

      // scopeless fields were selected.
      if (normalized[curr] === '*') {
        return mapScope(this.$validator.flags, false);
      }

      // if it has a scope defined
      var index = field.indexOf('.');
      if (index <= 0) {
        return {};
      }

      var ref = field.split('.');
      var scope = ref[0];
      var name = ref.slice(1);

      scope = this.$validator.flags[("$" + scope)];
      name = name.join('.');

      // an entire scope was selected: scope.*
      if (name === '*' && scope) {
        return mapScope(scope);
      }

      if (scope && scope[name]) {
        return scope[name];
      }

      return {};
    };

    return prev;
  }, {});
};

var minimal$1 = {
  install: install,
  use: use,
  directive: directive,
  mixin: mixin,
  mapFields: mapFields,
  Validator: Validator,
  ErrorBag: ErrorBag,
  version: '2.0.0-rc.26'
};

// rules plugin definition.
var rulesPlugin = function (ref) {
  var Validator = ref.Validator;

  Object.keys(Rules).forEach(function (rule) {
    Validator.extend(rule, Rules[rule]);
  });

  // Merge the english messages.
  Validator.localize('en', locale$1);
};

// install the rules via the plugin API.
minimal$1.use(rulesPlugin);

minimal$1.Rules = Rules;

return minimal$1;

})));
