New date format 2020-07-20+00:00 fixes #110

Author: Aaron Raddon

README.md

@@ -154,6 +154,8 @@ var examples = []string{
 	"2014-04",
 	"2014",
 	"2014-05-11 08:20:13,787",
+	// yyyy-mm-dd-07:00
+	"2020-07-20+08:00",
 	// mm.dd.yy
 	"3.31.2014",
 	"03.31.2014",
@@ -302,6 +304,7 @@ func main() {
 | 2014-04                                               | 2014-04-01 00:00:00 +0000 UTC           |
 | 2014                                                  | 2014-01-01 00:00:00 +0000 UTC           |
 | 2014-05-11 08:20:13,787                               | 2014-05-11 08:20:13.787 +0000 UTC       |
+| 2020-07-20+08:00                                      | 2020-07-20 00:00:00 +0800 +0800         |
 | 3.31.2014                                             | 2014-03-31 00:00:00 +0000 UTC           |
 | 03.31.2014                                            | 2014-03-31 00:00:00 +0000 UTC           |
 | 08.21.71                                              | 1971-08-21 00:00:00 +0000 UTC           |

example/main.go

@@ -111,6 +111,8 @@ var examples = []string{
 	"2014-04",
 	"2014",
 	"2014-05-11 08:20:13,787",
+	// yyyy-mm-dd-07:00
+	"2020-07-20+08:00",
 	// mm.dd.yy
 	"3.31.2014",
 	"03.31.2014",
@@ -259,6 +261,7 @@ func main() {
 | 2014-04                                               | 2014-04-01 00:00:00 +0000 UTC           |
 | 2014                                                  | 2014-01-01 00:00:00 +0000 UTC           |
 | 2014-05-11 08:20:13,787                               | 2014-05-11 08:20:13.787 +0000 UTC       |
+| 2020-07-20+08:00                                      | 2020-07-20 00:00:00 +0800 +0800         |
 | 3.31.2014                                             | 2014-03-31 00:00:00 +0000 UTC           |
 | 03.31.2014                                            | 2014-03-31 00:00:00 +0000 UTC           |
 | 08.21.71                                              | 1971-08-21 00:00:00 +0000 UTC           |

parseany.go

@@ -61,35 +61,36 @@ const (
 	dateYearDashDash
 	dateYearDashDashWs // 5
 	dateYearDashDashT
+	dateYearDashDashOffset
 	dateDigitDash
 	dateDigitDashAlpha
-	dateDigitDashAlphaDash
-	dateDigitDot // 10
+	dateDigitDashAlphaDash // 10
+	dateDigitDot
 	dateDigitDotDot
 	dateDigitSlash
 	dateDigitYearSlash
-	dateDigitSlashAlpha
-	dateDigitColon // 15
+	dateDigitSlashAlpha // 15
+	dateDigitColon
 	dateDigitChineseYear
 	dateDigitChineseYearWs
 	dateDigitWs
-	dateDigitWsMoYear
-	dateDigitWsMolong // 20
+	dateDigitWsMoYear // 20
+	dateDigitWsMolong
 	dateAlpha
 	dateAlphaWs
 	dateAlphaWsDigit
-	dateAlphaWsDigitMore
-	dateAlphaWsDigitMoreWs // 25
+	dateAlphaWsDigitMore // 25
+	dateAlphaWsDigitMoreWs
 	dateAlphaWsDigitMoreWsYear
 	dateAlphaWsMonth
 	dateAlphaWsDigitYearmaybe
 	dateAlphaWsMonthMore
-	dateAlphaWsMonthSuffix // 30
+	dateAlphaWsMonthSuffix
 	dateAlphaWsMore
 	dateAlphaWsAtTime
 	dateAlphaWsAlpha
-	dateAlphaWsAlphaYearmaybe
-	dateAlphaPeriodWsDigit // 35
+	dateAlphaWsAlphaYearmaybe // 35
+	dateAlphaPeriodWsDigit
 	dateWeekdayComma
 	dateWeekdayAbbrevComma
 )
@@ -434,7 +435,14 @@ iterRunes:
 			//  2006-01-02T15:04:05Z07:00
 			// dateYearDashDashWs
 			//  2013-04-01 22:43:22
+			// dateYearDashDashOffset
+			//  2020-07-20+00:00
 			switch r {
+			case '+', '-':
+				p.offseti = i
+				p.daylen = i - p.dayi
+				p.stateDate = dateYearDashDashOffset
+				p.setDay()
 			case ' ':
 				p.daylen = i - p.dayi
 				p.stateDate = dateYearDashDashWs
@@ -454,6 +462,15 @@ iterRunes:
 			//  2006-01-02T15:04:05Z07:00
 			//  2020-08-17T17:00:00:000+0100
 
+		case dateYearDashDashOffset:
+			//  2020-07-20+00:00
+			switch r {
+			case ':':
+				p.set(p.offseti, "-07:00")
+				// case ' ':
+				// 	return nil, unknownErr(datestr)
+			}
+
 		case dateYearDashAlphaDash:
 			// 2013-Feb-03
 			switch r {
@@ -1777,6 +1794,16 @@ iterRunes:
 		// 2006-01-2
 		return p, nil
 
+	case dateYearDashDashOffset:
+		///  2020-07-20+00:00
+		switch len(p.datestr) - p.offseti {
+		case 5:
+			p.set(p.offseti, "-0700")
+		case 6:
+			p.set(p.offseti, "-07:00")
+		}
+		return p, nil
+
 	case dateYearDashAlphaDash:
 		// 2013-Feb-03
 		// 2013-Feb-3

parseany_test.go

@@ -11,8 +11,8 @@ import (
 func TestOne(t *testing.T) {
 	time.Local = time.UTC
 	var ts time.Time
-	ts = MustParse("Thu, 17 Dec 2020 15:39:13 GMT")
-	assert.Equal(t, "2020-12-17 15:39:13 +0000 UTC", fmt.Sprintf("%v", ts.In(time.UTC)))
+	ts = MustParse("2020-07-20+08:00")
+	assert.Equal(t, "2020-07-19 16:00:00 +0000 UTC", fmt.Sprintf("%v", ts.In(time.UTC)))
 }
 
 type dateTest struct {
@@ -236,6 +236,9 @@ var testInputs = []dateTest{
 	{in: "2014-04-02", out: "2014-04-02 00:00:00 +0000 UTC"},
 	{in: "2014-03-31", out: "2014-03-31 00:00:00 +0000 UTC"},
 	{in: "2014-4-2", out: "2014-04-02 00:00:00 +0000 UTC"},
+	//   yyyy-mm-dd-07:00
+	{in: "2020-07-20+08:00", out: "2020-07-19 16:00:00 +0000 UTC"},
+	{in: "2020-07-20+0800", out: "2020-07-19 16:00:00 +0000 UTC"},
 	//   dd-mmm-yy
 	{in: "28-Feb-02", out: "2002-02-28 00:00:00 +0000 UTC"},
 	{in: "15-Jan-18", out: "2018-01-15 00:00:00 +0000 UTC"},