hugoWebsite/node_modules/date-fns/parse/_lib/utils.js

155 lines
3.9 KiB
JavaScript

"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;
}