Current File : /var/www/html/node_modules/date-fns/esm/parseISO/index.js
import { millisecondsInHour, millisecondsInMinute } from "../constants/index.js";
import requiredArgs from "../_lib/requiredArgs/index.js";
import toInteger from "../_lib/toInteger/index.js";
/**
* @name parseISO
* @category Common Helpers
* @summary Parse ISO string
*
* @description
* Parse the given string in ISO 8601 format and return an instance of Date.
*
* Function accepts complete ISO 8601 formats as well as partial implementations.
* ISO 8601: http://en.wikipedia.org/wiki/ISO_8601
*
* If the argument isn't a string, the function cannot parse the string or
* the values are invalid, it returns Invalid Date.
*
* ### v2.0.0 breaking changes:
*
* - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
*
* - The previous `parse` implementation was renamed to `parseISO`.
*
* ```javascript
* // Before v2.0.0
* parse('2016-01-01')
*
* // v2.0.0 onward
* parseISO('2016-01-01')
* ```
*
* - `parseISO` now validates separate date and time values in ISO-8601 strings
* and returns `Invalid Date` if the date is invalid.
*
* ```javascript
* parseISO('2018-13-32')
* //=> Invalid Date
* ```
*
* - `parseISO` now doesn't fall back to `new Date` constructor
* if it fails to parse a string argument. Instead, it returns `Invalid Date`.
*
* @param {String} argument - the value to convert
* @param {Object} [options] - an object with 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:
* const result = parseISO('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:
* const result = parseISO('+02014101', { additionalDigits: 1 })
* //=> Fri Apr 11 2014 00:00:00
*/
export default function parseISO(argument, dirtyOptions) {
requiredArgs(1, arguments);
var options = dirtyOptions || {};
var additionalDigits = options.additionalDigits == null ? 2 : toInteger(options.additionalDigits);
if (additionalDigits !== 2 && additionalDigits !== 1 && additionalDigits !== 0) {
throw new RangeError('additionalDigits must be 0, 1 or 2');
}
if (!(typeof argument === 'string' || Object.prototype.toString.call(argument) === '[object String]')) {
return new Date(NaN);
}
var dateStrings = splitDateString(argument);
var date;
if (dateStrings.date) {
var parseYearResult = parseYear(dateStrings.date, additionalDigits);
date = parseDate(parseYearResult.restDateString, parseYearResult.year);
}
if (!date || isNaN(date.getTime())) {
return new Date(NaN);
}
var timestamp = date.getTime();
var time = 0;
var offset;
if (dateStrings.time) {
time = parseTime(dateStrings.time);
if (isNaN(time)) {
return new Date(NaN);
}
}
if (dateStrings.timezone) {
offset = parseTimezone(dateStrings.timezone);
if (isNaN(offset)) {
return new Date(NaN);
}
} else {
var dirtyDate = new Date(timestamp + time); // js parsed string assuming it's in UTC timezone
// but we need it to be parsed in our timezone
// so we use utc values to build date in our timezone.
// Year values from 0 to 99 map to the years 1900 to 1999
// so set year explicitly with setFullYear.
var result = new Date(0);
result.setFullYear(dirtyDate.getUTCFullYear(), dirtyDate.getUTCMonth(), dirtyDate.getUTCDate());
result.setHours(dirtyDate.getUTCHours(), dirtyDate.getUTCMinutes(), dirtyDate.getUTCSeconds(), dirtyDate.getUTCMilliseconds());
return result;
}
return new Date(timestamp + time + offset);
}
var patterns = {
dateTimeDelimiter: /[T ]/,
timeZoneDelimiter: /[Z ]/i,
timezone: /([Z+-].*)$/
};
var dateRegex = /^-?(?:(\d{3})|(\d{2})(?:-?(\d{2}))?|W(\d{2})(?:-?(\d{1}))?|)$/;
var timeRegex = /^(\d{2}(?:[.,]\d*)?)(?::?(\d{2}(?:[.,]\d*)?))?(?::?(\d{2}(?:[.,]\d*)?))?$/;
var timezoneRegex = /^([+-])(\d{2})(?::?(\d{2}))?$/;
function splitDateString(dateString) {
var dateStrings = {};
var array = dateString.split(patterns.dateTimeDelimiter);
var timeString; // The regex match should only return at maximum two array elements.
// [date], [time], or [date, time].
if (array.length > 2) {
return dateStrings;
}
if (/:/.test(array[0])) {
timeString = array[0];
} else {
dateStrings.date = array[0];
timeString = array[1];
if (patterns.timeZoneDelimiter.test(dateStrings.date)) {
dateStrings.date = dateString.split(patterns.timeZoneDelimiter)[0];
timeString = dateString.substr(dateStrings.date.length, dateString.length);
}
}
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 regex = new RegExp('^(?:(\\d{4}|[+-]\\d{' + (4 + additionalDigits) + '})|(\\d{2}|[+-]\\d{' + (2 + additionalDigits) + '})$)');
var captures = dateString.match(regex); // Invalid ISO-formatted year
if (!captures) return {
year: NaN,
restDateString: ''
};
var year = captures[1] ? parseInt(captures[1]) : null;
var century = captures[2] ? parseInt(captures[2]) : null; // either year or century is null, not both
return {
year: century === null ? year : century * 100,
restDateString: dateString.slice((captures[1] || captures[2]).length)
};
}
function parseDate(dateString, year) {
// Invalid ISO-formatted year
if (year === null) return new Date(NaN);
var captures = dateString.match(dateRegex); // Invalid ISO-formatted string
if (!captures) return new Date(NaN);
var isWeekDate = !!captures[4];
var dayOfYear = parseDateUnit(captures[1]);
var month = parseDateUnit(captures[2]) - 1;
var day = parseDateUnit(captures[3]);
var week = parseDateUnit(captures[4]);
var dayOfWeek = parseDateUnit(captures[5]) - 1;
if (isWeekDate) {
if (!validateWeekDate(year, week, dayOfWeek)) {
return new Date(NaN);
}
return dayOfISOWeekYear(year, week, dayOfWeek);
} else {
var date = new Date(0);
if (!validateDate(year, month, day) || !validateDayOfYearDate(year, dayOfYear)) {
return new Date(NaN);
}
date.setUTCFullYear(year, month, Math.max(dayOfYear, day));
return date;
}
}
function parseDateUnit(value) {
return value ? parseInt(value) : 1;
}
function parseTime(timeString) {
var captures = timeString.match(timeRegex);
if (!captures) return NaN; // Invalid ISO-formatted time
var hours = parseTimeUnit(captures[1]);
var minutes = parseTimeUnit(captures[2]);
var seconds = parseTimeUnit(captures[3]);
if (!validateTime(hours, minutes, seconds)) {
return NaN;
}
return hours * millisecondsInHour + minutes * millisecondsInMinute + seconds * 1000;
}
function parseTimeUnit(value) {
return value && parseFloat(value.replace(',', '.')) || 0;
}
function parseTimezone(timezoneString) {
if (timezoneString === 'Z') return 0;
var captures = timezoneString.match(timezoneRegex);
if (!captures) return 0;
var sign = captures[1] === '+' ? -1 : 1;
var hours = parseInt(captures[2]);
var minutes = captures[3] && parseInt(captures[3]) || 0;
if (!validateTimezone(hours, minutes)) {
return NaN;
}
return sign * (hours * millisecondsInHour + minutes * millisecondsInMinute);
}
function dayOfISOWeekYear(isoWeekYear, week, day) {
var date = new Date(0);
date.setUTCFullYear(isoWeekYear, 0, 4);
var fourthOfJanuaryDay = date.getUTCDay() || 7;
var diff = (week - 1) * 7 + day + 1 - fourthOfJanuaryDay;
date.setUTCDate(date.getUTCDate() + diff);
return date;
} // Validation functions
// February is null to handle the leap year (using ||)
var daysInMonths = [31, null, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
function isLeapYearIndex(year) {
return year % 400 === 0 || year % 4 === 0 && year % 100 !== 0;
}
function validateDate(year, month, date) {
return month >= 0 && month <= 11 && date >= 1 && date <= (daysInMonths[month] || (isLeapYearIndex(year) ? 29 : 28));
}
function validateDayOfYearDate(year, dayOfYear) {
return dayOfYear >= 1 && dayOfYear <= (isLeapYearIndex(year) ? 366 : 365);
}
function validateWeekDate(_year, week, day) {
return week >= 1 && week <= 53 && day >= 0 && day <= 6;
}
function validateTime(hours, minutes, seconds) {
if (hours === 24) {
return minutes === 0 && seconds === 0;
}
return seconds >= 0 && seconds < 60 && minutes >= 0 && minutes < 60 && hours >= 0 && hours < 25;
}
function validateTimezone(_hours, minutes) {
return minutes >= 0 && minutes <= 59;
}
Mini Shell