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- "use strict";
- Object.defineProperty(exports, "__esModule", {
- value: true
- });
- exports.dayPeriodEnumToHours = dayPeriodEnumToHours;
- exports.isLeapYearIndex = isLeapYearIndex;
- exports.mapValue = mapValue;
- exports.normalizeTwoDigitYear = normalizeTwoDigitYear;
- exports.parseAnyDigitsSigned = parseAnyDigitsSigned;
- exports.parseNDigits = parseNDigits;
- exports.parseNDigitsSigned = parseNDigitsSigned;
- exports.parseNumericPattern = parseNumericPattern;
- exports.parseTimezonePattern = parseTimezonePattern;
- var _index = require("../../constants/index.js");
- var _constants = require("./constants.js");
- function mapValue(parseFnResult, mapFn) {
- if (!parseFnResult) {
- return parseFnResult;
- }
- return {
- value: mapFn(parseFnResult.value),
- rest: parseFnResult.rest
- };
- }
- function parseNumericPattern(pattern, dateString) {
- var matchResult = dateString.match(pattern);
- if (!matchResult) {
- return null;
- }
- return {
- value: parseInt(matchResult[0], 10),
- rest: dateString.slice(matchResult[0].length)
- };
- }
- function parseTimezonePattern(pattern, dateString) {
- var matchResult = dateString.match(pattern);
- if (!matchResult) {
- return null;
- }
- // Input is 'Z'
- if (matchResult[0] === 'Z') {
- return {
- value: 0,
- rest: dateString.slice(1)
- };
- }
- var sign = matchResult[1] === '+' ? 1 : -1;
- var hours = matchResult[2] ? parseInt(matchResult[2], 10) : 0;
- var minutes = matchResult[3] ? parseInt(matchResult[3], 10) : 0;
- var seconds = matchResult[5] ? parseInt(matchResult[5], 10) : 0;
- return {
- value: sign * (hours * _index.millisecondsInHour + minutes * _index.millisecondsInMinute + seconds * _index.millisecondsInSecond),
- rest: dateString.slice(matchResult[0].length)
- };
- }
- function parseAnyDigitsSigned(dateString) {
- return parseNumericPattern(_constants.numericPatterns.anyDigitsSigned, dateString);
- }
- function parseNDigits(n, dateString) {
- switch (n) {
- case 1:
- return parseNumericPattern(_constants.numericPatterns.singleDigit, dateString);
- case 2:
- return parseNumericPattern(_constants.numericPatterns.twoDigits, dateString);
- case 3:
- return parseNumericPattern(_constants.numericPatterns.threeDigits, dateString);
- case 4:
- return parseNumericPattern(_constants.numericPatterns.fourDigits, dateString);
- default:
- return parseNumericPattern(new RegExp('^\\d{1,' + n + '}'), dateString);
- }
- }
- function parseNDigitsSigned(n, dateString) {
- switch (n) {
- case 1:
- return parseNumericPattern(_constants.numericPatterns.singleDigitSigned, dateString);
- case 2:
- return parseNumericPattern(_constants.numericPatterns.twoDigitsSigned, dateString);
- case 3:
- return parseNumericPattern(_constants.numericPatterns.threeDigitsSigned, dateString);
- case 4:
- return parseNumericPattern(_constants.numericPatterns.fourDigitsSigned, dateString);
- default:
- return parseNumericPattern(new RegExp('^-?\\d{1,' + n + '}'), dateString);
- }
- }
- function dayPeriodEnumToHours(dayPeriod) {
- switch (dayPeriod) {
- case 'morning':
- return 4;
- case 'evening':
- return 17;
- case 'pm':
- case 'noon':
- case 'afternoon':
- return 12;
- case 'am':
- case 'midnight':
- case 'night':
- default:
- return 0;
- }
- }
- function normalizeTwoDigitYear(twoDigitYear, currentYear) {
- var isCommonEra = currentYear > 0;
- // Absolute number of the current year:
- // 1 -> 1 AC
- // 0 -> 1 BC
- // -1 -> 2 BC
- var absCurrentYear = isCommonEra ? currentYear : 1 - currentYear;
- var result;
- if (absCurrentYear <= 50) {
- result = twoDigitYear || 100;
- } else {
- var rangeEnd = absCurrentYear + 50;
- var rangeEndCentury = Math.floor(rangeEnd / 100) * 100;
- var isPreviousCentury = twoDigitYear >= rangeEnd % 100;
- result = twoDigitYear + rangeEndCentury - (isPreviousCentury ? 100 : 0);
- }
- return isCommonEra ? result : 1 - result;
- }
- function isLeapYearIndex(year) {
- return year % 400 === 0 || year % 4 === 0 && year % 100 !== 0;
- }
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