go-pkg/dateparse
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maint: support unix timestamps from floats/scientific notation

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This commit is contained in:
drewlanenga 2024-12-04 14:44:41 -08:00
parent 6b43995a97
commit 744343ff5f
2 changed files with 21 additions and 9 deletions
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29
parseany.go
View File

@ -5,6 +5,7 @@ package dateparse
import (
"fmt"
"math/big"
"strconv"
"strings"
"time"
@ -170,15 +171,14 @@ func ParseIn(datestr string, loc *time.Location, opts ...ParserOption) (time.Tim
// Set Location to time.Local. Same as ParseIn Location but lazily uses
// the global time.Local variable for Location argument.
//
// denverLoc, _ := time.LoadLocation("America/Denver")
// time.Local = denverLoc
// denverLoc, _ := time.LoadLocation("America/Denver")
// time.Local = denverLoc
//
// t, err := dateparse.ParseLocal("3/1/2014")
// t, err := dateparse.ParseLocal("3/1/2014")
//
// Equivalent to:
//
// t, err := dateparse.ParseIn("3/1/2014", denverLoc)
//
// t, err := dateparse.ParseIn("3/1/2014", denverLoc)
func ParseLocal(datestr string, opts ...ParserOption) (time.Time, error) {
p, err := parseTime(datestr, time.Local, opts...)
if err != nil {
@ -204,9 +204,8 @@ func MustParse(datestr string, opts ...ParserOption) time.Time {
// ParseFormat parse's an unknown date-time string and returns a layout
// string that can parse this (and exact same format) other date-time strings.
//
// layout, err := dateparse.ParseFormat("2013-02-01 00:00:00")
// // layout = "2006-01-02 15:04:05"
//
// layout, err := dateparse.ParseFormat("2013-02-01 00:00:00")
// // layout = "2006-01-02 15:04:05"
func ParseFormat(datestr string, opts ...ParserOption) (string, error) {
p, err := parseTime(datestr, nil, opts...)
if err != nil {
@ -714,7 +713,7 @@ iterRunes:
break
}
case dateDigitDot:
// This is the 2nd period
// This might be the 2nd period
// 3.31.2014
// 08.21.71
// 2014.05
@ -735,6 +734,18 @@ iterRunes:
p.stateDate = dateDigitDotDot
}
}
// This is likely a unix-ish timestamp in scientific notation
// 1.384216367111e+12
if r == 'e' {
// try to convert to an int64
if f, err := strconv.ParseFloat(datestr, 64); err == nil {
bf := big.NewFloat(f)
bi, _ := bf.Int(nil)
datestr = bi.String()
p.stateDate = dateDigit
break iterRunes
}
}
case dateDigitDotDot:
// iterate all the way through
case dateAlpha:

1
parseany_test.go
View File

@ -415,6 +415,7 @@ var testInputs = []dateTest{
{in: "1332151919", out: "2012-03-19 10:11:59 +0000 UTC"},
{in: "1332151919", out: "2012-03-19 10:11:59 +0000 UTC", loc: "America/Denver"},
{in: "1384216367111", out: "2013-11-12 00:32:47.111 +0000 UTC"},
{in: "1.384216367111e+12", out: "2013-11-12 00:32:47.111 +0000 UTC"},
{in: "1384216367111222", out: "2013-11-12 00:32:47.111222 +0000 UTC"},
{in: "1384216367111222333", out: "2013-11-12 00:32:47.111222333 +0000 UTC"},
}