Fix parse value when format has not year (MM-dd)

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## 2.14.2 - 2024 Nov 25
+- Fix parse value when format has not year (MM-dd) (@jorgejaime)
+
 ## 2.14.1 - 2024 Nov 6
 - Fix value bindings not always causing updates (@asdfghjkkl11)
 

src/lib/DateInput.svelte

@@ -77,7 +77,7 @@
 
 	function textUpdate(text: string, formatTokens: FormatToken[]) {
 		if (text.length) {
-			const result = parse(text, formatTokens, $store)
+			const result = parse(text, formatTokens, $store, min)
 			if (result.date !== null) {
 				valid = true
 				store.set(result.date)
@@ -210,7 +210,7 @@
 				e.currentTarget.value === text + e.data
 			) {
 				// check for missing punctuation, and add if there is any
-				let result = parse(text, formatTokens, $store)
+				let result = parse(text, formatTokens, $store, min)
 				if (result.missingPunctuation !== '' && !result.missingPunctuation.startsWith(e.data)) {
 					text = text + result.missingPunctuation + e.data
 					return

src/lib/parse.ts

@@ -15,11 +15,16 @@ type ParseResult = {
 }
 
 /** Parse a string according to the supplied format tokens. Returns a date if successful, and the missing punctuation if there is any that should be after the string */
-export function parse(str: string, tokens: FormatToken[], baseDate: Date | null): ParseResult {
+export function parse(
+	str: string,
+	tokens: FormatToken[],
+	baseDate: Date | null,
+	min: Date | null,
+): ParseResult {
 	let missingPunctuation = ''
 	let valid = true
 
-	baseDate = baseDate || new Date(2020, 0, 1, 0, 0, 0, 0)
+	baseDate = min || baseDate || new Date(new Date().getFullYear(), 0, 1, 0, 0, 0, 0)
 	let year = baseDate.getFullYear()
 	let month = baseDate.getMonth()
 	let day = baseDate.getDate()

src/lib/utils.test.ts

@@ -105,7 +105,7 @@ describe('parse()', () => {
 	const format = createFormat('yyyy--MM-dd HH:mm:ss')
 
 	it('works with a basic date', () => {
-		const result = parse('1234--12-31 23:59:59', format, baseDate)
+		const result = parse('1234--12-31 23:59:59', format, baseDate, null)
 		expect(result).toEqual({
 			date: new Date(1234, 11, 31, 23, 59, 59, 999),
 			missingPunctuation: '',
@@ -114,7 +114,7 @@ describe('parse()', () => {
 
 	it('works with a short month date', () => {
 		const format = createFormat('dd MMM yyyy HH:mm:ss')
-		const result = parse('31 Dec 2022 23:59:59', format, baseDate)
+		const result = parse('31 Dec 2022 23:59:59', format, baseDate, null)
 		expect(result).toEqual({
 			date: new Date(2022, 11, 31, 23, 59, 59, 999),
 			missingPunctuation: '',
@@ -123,7 +123,7 @@ describe('parse()', () => {
 
 	it('works with a short month date in non-En locale', () => {
 		const format = createFormat('dd MMM yyyy HH:mm:ss', localeFromDateFnsLocale(nb))
-		const result = parse('31 des. 2022 23:59:59', format, baseDate)
+		const result = parse('31 des. 2022 23:59:59', format, baseDate, null)
 		expect(result).toEqual({
 			date: new Date(2022, 11, 31, 23, 59, 59, 999),
 			missingPunctuation: '',
@@ -132,23 +132,23 @@ describe('parse()', () => {
 
 	it('handles badly formed month name', () => {
 		const format = createFormat('dd MMM yyyy HH:mm:ss')
-		const result = parse('31 Dex 2022 23:59:59', format, baseDate)
+		const result = parse('31 Dex 2022 23:59:59', format, baseDate, null)
 		expect(result).toEqual({
 			date: null,
 			missingPunctuation: '',
 		})
 	})
 
 	it('handles missing punctuation', () => {
-		const result = parse('2345', format, baseDate)
+		const result = parse('2345', format, baseDate, null)
 		expect(result).toEqual({
 			date: null,
 			missingPunctuation: '--',
 		})
 	})
 
 	it('fails with too high minute', () => {
-		const result = parse('1234--12-31 23:99:59', format, baseDate)
+		const result = parse('1234--12-31 23:99:59', format, baseDate, null)
 		expect(result).toEqual({
 			date: null,
 			missingPunctuation: '',
@@ -157,15 +157,15 @@ describe('parse()', () => {
 
 	it('fails with too high date-of-month', () => {
 		// separate test because some months have less than 31 days
-		const dayOfMonthOverflow = parse('1234--02-31 23:59:59', format, baseDate)
+		const dayOfMonthOverflow = parse('1234--02-31 23:59:59', format, baseDate, null)
 		expect(dayOfMonthOverflow).toEqual({
 			date: null,
 			missingPunctuation: '',
 		})
 	})
 
 	it('fails when the second has a non-numeric character', () => {
-		const noNumber = parse('1234--02-31 23:59:5d', format, baseDate)
+		const noNumber = parse('1234--02-31 23:59:5d', format, baseDate, null)
 		expect(noNumber).toEqual({
 			date: null,
 			missingPunctuation: '',