diff --git a/README.md b/README.md index e7851da..56fa325 100644 --- a/README.md +++ b/README.md @@ -1,19 +1,24 @@ Go Date Parser --------------------------- -Parse Any date format without knowing format in advance. Uses -a Scan/Lex based approach to minimize shotgun based parse attempts. +Parse any date string without knowing format in advance. Uses +a scanner to read bytes and use a state machine to find format. +Much faster than shotgun based parse methods. See [bench_test.go](https://github.com/araddon/dateparse/blob/master/bench_test.go) for performance comparison. [![Codecov](https://img.shields.io/codecov/c/github/araddon/dateparse.svg)]() +**Timezones** The location your server is configured effects the results! +See example or https://play.golang.org/p/IDHRalIyXh and last paragraph here https://golang.org/pkg/time/#Parse. + See example https://github.com/araddon/dateparse/blob/master/example/main.go ```go package main import ( "fmt" + "time" "github.com/apcera/termtables" "github.com/araddon/dateparse" @@ -84,11 +89,23 @@ var examples = []string{ } func main() { + + // NOTE: This is very, very important to understand timezone parsing + // The time.Local global tells the parse function to use given + // location/zone for use in the time.Parse() function + // used by this library. + loc, _ := time.LoadLocation("America/Denver") + time.Local = loc + table := termtables.CreateTable() table.AddHeaders("Input", "Parsed, and Output as %v") for _, dateExample := range examples { - table.AddRow(dateExample, fmt.Sprintf("%v", dateparse.MustParse(dateExample))) + t, err := dateparse.ParseAny(dateExample) + if err != nil { + panic(err.Error()) + } + table.AddRow(dateExample, fmt.Sprintf("%v",t)) } fmt.Println(table.Render()) } @@ -96,66 +113,67 @@ func main() { **outputs** ``` -+-------------------------------------------------------+------------------------------------------+ -| Input | Parsed, and Output as %v | -+-------------------------------------------------------+------------------------------------------+ -| May 8, 2009 5:57:51 PM | 2009-05-08 17:57:51 +0000 UTC | -| Mon Jan 2 15:04:05 2006 | 2006-01-02 15:04:05 +0000 UTC | -| Mon Jan 2 15:04:05 MST 2006 | 2006-01-02 15:04:05 +0000 MST | -| Mon Jan 02 15:04:05 -0700 2006 | 2006-01-02 15:04:05 -0700 -0700 | -| Monday, 02-Jan-06 15:04:05 MST | 2006-01-02 15:04:05 +0000 MST | -| Mon, 02 Jan 2006 15:04:05 MST | 2006-01-02 15:04:05 +0000 MST | -| Mon Aug 10 15:44:11 UTC+0100 2015 | 2015-08-10 15:44:11 +0000 UTC | -| Fri Jul 03 2015 18:04:07 GMT+0100 (GMT Daylight Time) | 2015-07-03 18:04:07 +0100 GMT | -| Mon, 02 Jan 2006 15:04:05 -0700 | 2006-01-02 15:04:05 -0700 -0700 | -| 12 Feb 2006, 19:17 | 2006-02-12 19:17:00 +0000 UTC | -| 2015-02-18 00:12:00 +0000 GMT | 2015-02-18 00:12:00 +0000 +0000 | -| 2015-02-18 00:12:00 +0000 UTC | 2015-02-18 00:12:00 +0000 +0000 | -| 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 | -| 8/1/71 | 1971-08-01 00:00:00 +0000 UTC | -| 4/8/2014 22:05 | 2014-04-08 22:05:00 +0000 UTC | -| 04/08/2014 22:05 | 2014-04-08 22:05:00 +0000 UTC | -| 04/2/2014 03:00:51 | 2014-04-02 03:00:51 +0000 UTC | -| 8/8/1965 12:00:00 AM | 1965-08-08 00:00:00 +0000 UTC | -| 8/8/1965 01:00:01 PM | 1965-08-08 13:00:01 +0000 UTC | -| 8/8/1965 01:00 PM | 1965-08-08 13:00:00 +0000 UTC | -| 8/8/1965 1:00 PM | 1965-08-08 13:00:00 +0000 UTC | -| 8/8/1965 12:00 AM | 1965-08-08 00:00:00 +0000 UTC | -| 4/02/2014 03:00:51 | 2014-04-02 03:00:51 +0000 UTC | -| 03/19/2012 10:11:59 | 2012-03-19 10:11:59 +0000 UTC | -| 03/19/2012 10:11:59.3186369 | 2012-03-19 10:11:59.3186369 +0000 UTC | -| 2014/3/31 | 2014-03-31 00:00:00 +0000 UTC | -| 2014/03/31 | 2014-03-31 00:00:00 +0000 UTC | -| 2014/4/8 22:05 | 2014-04-08 22:05:00 +0000 UTC | -| 2014/04/08 22:05 | 2014-04-08 22:05:00 +0000 UTC | -| 2014/04/2 03:00:51 | 2014-04-02 03:00:51 +0000 UTC | -| 2014/4/02 03:00:51 | 2014-04-02 03:00:51 +0000 UTC | -| 2012/03/19 10:11:59 | 2012-03-19 10:11:59 +0000 UTC | -| 2012/03/19 10:11:59.3186369 | 2012-03-19 10:11:59.3186369 +0000 UTC | -| 2009-08-12T22:15:09-07:00 | 2009-08-12 22:15:09 -0700 PDT | -| 2009-08-12T22:15:09Z | 2009-08-12 22:15:09 +0000 UTC | -| 2009-08-12T22:15:09 | 2009-08-12 22:15:09 +0000 UTC | -| 2014-04-26 17:24:37.3186369 | 2014-04-26 17:24:37.3186369 +0000 UTC | -| 2014-04-26 17:24:37.318636 | 2014-04-26 17:24:37.318636 +0000 UTC | -| 2012-08-03 18:31:59.257000000 +0000 UTC | 2012-08-03 18:31:59.257 +0000 +0000 | -| 2015-09-30 18:48:56.35272715 +0000 UTC | 2015-09-30 18:48:56.35272715 +0000 +0000 | -| 2012-08-03 18:31:59.257000000 | 2012-08-03 18:31:59.257 +0000 UTC | -| 2013-04-01 22:43:22 | 2013-04-01 22:43:22 +0000 UTC | -| 2014-04-26 17:24:37.123 | 2014-04-26 17:24:37.123 +0000 UTC | -| 2014-12-16 06:20:00 UTC | 2014-12-16 06:20:00 +0000 UTC | -| 2014-12-16 06:20:00 GMT | 2014-12-16 06:20:00 +0000 UTC | -| 2014-04-26 05:24:37 PM | 2014-04-26 17:24:37 +0000 UTC | -| 2014-04-26 13:13:43 +0800 | 2014-04-26 13:13:43 +0800 +0800 | -| 2014-04-26 13:13:44 +09:00 | 2014-04-26 13:13:44 +0900 +0900 | -| 2014-04-26 | 2014-04-26 00:00:00 +0000 UTC | -| 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 01:20:13.787 -0700 PDT | -| 20140601 | 2014-06-01 00:00:00 +0000 UTC | -| 1332151919 | 2012-03-19 03:11:59 -0700 PDT | -| 1384216367189 | 2013-11-11 16:32:47.189 -0800 PST | -+-------------------------------------------------------+------------------------------------------+ - ++-------------------------------------------------------+----------------------------------------+ +| Input | Parsed, and Output as %v | ++-------------------------------------------------------+----------------------------------------+ +| May 8, 2009 5:57:51 PM | 2009-05-08 17:57:51 +0000 UTC | +| Mon Jan 2 15:04:05 2006 | 2006-01-02 15:04:05 +0000 UTC | +| Mon Jan 2 15:04:05 MST 2006 | 2006-01-02 15:04:05 +0000 MST | +| Mon Jan 02 15:04:05 -0700 2006 | 2006-01-02 15:04:05 -0700 -0700 | +| Monday, 02-Jan-06 15:04:05 MST | 2006-01-02 15:04:05 +0000 MST | +| Mon, 02 Jan 2006 15:04:05 MST | 2006-01-02 15:04:05 +0000 MST | +| Tue, 11 Jul 2017 16:28:13 +0200 (CEST) | 2017-07-11 16:28:13 +0200 +0200 | +| Mon, 02 Jan 2006 15:04:05 -0700 | 2006-01-02 15:04:05 -0700 -0700 | +| Mon Aug 10 15:44:11 UTC+0100 2015 | 2015-08-10 15:44:11 +0000 UTC | +| Fri Jul 03 2015 18:04:07 GMT+0100 (GMT Daylight Time) | 2015-07-03 18:04:07 +0100 GMT | +| 12 Feb 2006, 19:17 | 2006-02-12 19:17:00 +0000 UTC | +| 2015-02-18 00:12:00 +0000 GMT | 2015-02-18 00:12:00 +0000 UTC | +| 2015-02-18 00:12:00 +0000 UTC | 2015-02-18 00:12:00 +0000 UTC | +| 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 | +| 8/1/71 | 1971-08-01 00:00:00 +0000 UTC | +| 4/8/2014 22:05 | 2014-04-08 22:05:00 +0000 UTC | +| 04/08/2014 22:05 | 2014-04-08 22:05:00 +0000 UTC | +| 04/2/2014 03:00:51 | 2014-04-02 03:00:51 +0000 UTC | +| 8/8/1965 12:00:00 AM | 1965-08-08 00:00:00 +0000 UTC | +| 8/8/1965 01:00:01 PM | 1965-08-08 13:00:01 +0000 UTC | +| 8/8/1965 01:00 PM | 1965-08-08 13:00:00 +0000 UTC | +| 8/8/1965 1:00 PM | 1965-08-08 13:00:00 +0000 UTC | +| 8/8/1965 12:00 AM | 1965-08-08 00:00:00 +0000 UTC | +| 4/02/2014 03:00:51 | 2014-04-02 03:00:51 +0000 UTC | +| 03/19/2012 10:11:59 | 2012-03-19 10:11:59 +0000 UTC | +| 03/19/2012 10:11:59.3186369 | 2012-03-19 10:11:59.3186369 +0000 UTC | +| 2014/3/31 | 2014-03-31 00:00:00 +0000 UTC | +| 2014/03/31 | 2014-03-31 00:00:00 +0000 UTC | +| 2014/4/8 22:05 | 2014-04-08 22:05:00 +0000 UTC | +| 2014/04/08 22:05 | 2014-04-08 22:05:00 +0000 UTC | +| 2014/04/2 03:00:51 | 2014-04-02 03:00:51 +0000 UTC | +| 2014/4/02 03:00:51 | 2014-04-02 03:00:51 +0000 UTC | +| 2012/03/19 10:11:59 | 2012-03-19 10:11:59 +0000 UTC | +| 2012/03/19 10:11:59.3186369 | 2012-03-19 10:11:59.3186369 +0000 UTC | +| 2009-08-12T22:15:09-07:00 | 2009-08-12 22:15:09 -0700 -0700 | +| 2009-08-12T22:15:09Z | 2009-08-12 22:15:09 +0000 UTC | +| 2009-08-12T22:15:09 | 2009-08-12 22:15:09 +0000 UTC | +| 2006-01-02T15:04:05+0000 | 2006-01-02 15:04:05 +0000 UTC | +| 2014-04-26 17:24:37.3186369 | 2014-04-26 17:24:37.3186369 +0000 UTC | +| 2014-04-26 17:24:37.318636 | 2014-04-26 17:24:37.318636 +0000 UTC | +| 2012-08-03 18:31:59.257000000 +0000 UTC | 2012-08-03 18:31:59.257 +0000 UTC | +| 2015-09-30 18:48:56.35272715 +0000 UTC | 2015-09-30 18:48:56.35272715 +0000 UTC | +| 2012-08-03 18:31:59.257000000 | 2012-08-03 18:31:59.257 +0000 UTC | +| 2013-04-01 22:43:22 | 2013-04-01 22:43:22 +0000 UTC | +| 2014-04-26 17:24:37.123 | 2014-04-26 17:24:37.123 +0000 UTC | +| 2014-12-16 06:20:00 UTC | 2014-12-16 06:20:00 +0000 UTC | +| 2014-12-16 06:20:00 GMT | 2014-12-16 06:20:00 +0000 UTC | +| 2014-04-26 05:24:37 PM | 2014-04-26 17:24:37 +0000 UTC | +| 2014-04-26 13:13:43 +0800 | 2014-04-26 13:13:43 +0800 +0800 | +| 2014-04-26 13:13:44 +09:00 | 2014-04-26 13:13:44 +0900 +0900 | +| 2014-04-26 | 2014-04-26 00:00:00 +0000 UTC | +| 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 | +| 20140601 | 2014-06-01 00:00:00 +0000 UTC | +| 1332151919 | 2012-03-19 10:11:59 +0000 UTC | +| 1384216367189 | 2013-11-12 00:32:47.189 +0000 UTC | ++-------------------------------------------------------+----------------------------------------+ ``` \ No newline at end of file diff --git a/example/main.go b/example/main.go index d5b6922..cd73cf9 100644 --- a/example/main.go +++ b/example/main.go @@ -1,7 +1,9 @@ package main import ( + "flag" "fmt" + "time" "github.com/apcera/termtables" "github.com/araddon/dateparse" @@ -74,12 +76,32 @@ var examples = []string{ "1384216367189", } +var ( + timezone = "" +) + func main() { + flag.StringVar(&timezone, "timezone", "UTC", "Timezone aka `America/Los_Angeles` formatted time-zone") + flag.Parse() + + if timezone != "" { + // NOTE: This is very, very important to understand + // time-parsing in go + loc, err := time.LoadLocation(timezone) + if err != nil { + panic(err.Error()) + } + time.Local = loc + } + table := termtables.CreateTable() table.AddHeaders("Input", "Parsed, and Output as %v") for _, dateExample := range examples { - t := dateparse.MustParse(dateExample) + t, err := dateparse.ParseAny(dateExample) + if err != nil { + panic(err.Error()) + } table.AddRow(dateExample, fmt.Sprintf("%v", t)) } fmt.Println(table.Render())