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import { millisecondsInHour, millisecondsInMinute, millisecondsInSecond } from "../../constants/index.js";
import { numericPatterns } from "./constants.js";
export function mapValue(parseFnResult, mapFn) {
if (!parseFnResult) {
return parseFnResult;
}
return {
value: mapFn(parseFnResult.value),
rest: parseFnResult.rest
};
}
export 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)
};
}
export 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 * millisecondsInHour + minutes * millisecondsInMinute + seconds * millisecondsInSecond),
rest: dateString.slice(matchResult[0].length)
};
}
export function parseAnyDigitsSigned(dateString) {
return parseNumericPattern(numericPatterns.anyDigitsSigned, dateString);
}
export function parseNDigits(n, dateString) {
switch (n) {
case 1:
return parseNumericPattern(numericPatterns.singleDigit, dateString);
case 2:
return parseNumericPattern(numericPatterns.twoDigits, dateString);
case 3:
return parseNumericPattern(numericPatterns.threeDigits, dateString);
case 4:
return parseNumericPattern(numericPatterns.fourDigits, dateString);
default:
return parseNumericPattern(new RegExp('^\\d{1,' + n + '}'), dateString);
}
}
export function parseNDigitsSigned(n, dateString) {
switch (n) {
case 1:
return parseNumericPattern(numericPatterns.singleDigitSigned, dateString);
case 2:
return parseNumericPattern(numericPatterns.twoDigitsSigned, dateString);
case 3:
return parseNumericPattern(numericPatterns.threeDigitsSigned, dateString);
case 4:
return parseNumericPattern(numericPatterns.fourDigitsSigned, dateString);
default:
return parseNumericPattern(new RegExp('^-?\\d{1,' + n + '}'), dateString);
}
}
export 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;
}
}
export 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;
}
export function isLeapYearIndex(year) {
return year % 400 === 0 || year % 4 === 0 && year % 100 !== 0;
}
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