From 2cbb9d374c4ca56795eb1273f39dcf640fe5bef7 Mon Sep 17 00:00:00 2001
From: liushaobo <liushaobo@jiagouyun.com>
Date: Wed, 10 Mar 2021 11:07:49 +0800
Subject: [PATCH] rabbitmq log datetime support

---
 parseany.go      | 30 ++++++++++++++++++++++++++++++
 parseany_test.go |  2 ++
 2 files changed, 32 insertions(+)

diff --git a/parseany.go b/parseany.go
index b97e54e..774ef19 100644
--- a/parseany.go
+++ b/parseany.go
@@ -491,6 +491,35 @@ iterRunes:
 				}
 				p.stateTime = timeStart
 				break iterRunes
+			case ':':
+				p.link++
+				if p.link == 2 {
+					// we need to find if this was 4 digits, aka year
+					// or 2 digits which makes it ambiguous year/day
+					length := i - (p.moi + p.molen + 2)
+					if length == 4 {
+						p.yearlen = 4
+						p.set(p.yeari, "2006")
+						// We now also know that part1 was the day
+						p.dayi = 0
+						p.daylen = p.part1Len
+						p.setDay()
+					} else if length == 2 {
+						// We have no idea if this is
+						// yy-mon-dd   OR  dd-mon-yy
+						//
+						// We are going to ASSUME (bad, bad) that it is dd-mon-yy  which is a horible assumption
+						p.ambiguousMD = true
+						p.yearlen = 2
+						p.set(p.yeari, "06")
+						// We now also know that part1 was the day
+						p.dayi = 0
+						p.daylen = p.part1Len
+						p.setDay()
+					}
+					p.stateTime = timeStart
+					break iterRunes
+				}
 			}
 
 		case dateDigitSlash:
@@ -1839,6 +1868,7 @@ type parser struct {
 	datestr                    string
 	fullMonth                  string
 	skip                       int
+	link                       int
 	extra                      int
 	part1Len                   int
 	yeari                      int
diff --git a/parseany_test.go b/parseany_test.go
index 8e19076..3003514 100644
--- a/parseany_test.go
+++ b/parseany_test.go
@@ -532,6 +532,8 @@ var testParseFormat = []dateTest{
 	{in: "2009-08-12T22:15:09-0700", out: "2006-01-02T15:04:05-0700"},
 	//   yyyy-mm-ddThh:mm:ssZ
 	{in: "2009-08-12T22:15Z", out: "2006-01-02T15:04Z"},
+
+	{in: "8-Mar-2018::14:09:27", out: "2-Jan-2006::15:04:05"},
 }
 
 func TestParseLayout(t *testing.T) {