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60 lines
1.5 KiB
Go
60 lines
1.5 KiB
Go
package values
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import (
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"reflect"
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"time"
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)
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var zeroTime time.Time
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var dateLayouts = []string{
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// from the Go library
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time.ANSIC, // "Mon Jan _2 15:04:05 2006"
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time.UnixDate, // "Mon Jan _2 15:04:05 MST 2006"
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time.RubyDate, // "Mon Jan 02 15:04:05 -0700 2006"
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time.RFC822, // "02 Jan 06 15:04 MST"
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time.RFC822Z, // "02 Jan 06 15:04 -0700" // RFC822 with numeric zone
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time.RFC850, // "Monday, 02-Jan-06 15:04:05 MST"
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time.RFC1123, // "Mon, 02 Jan 2006 15:04:05 MST"
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time.RFC1123Z, // "Mon, 02 Jan 2006 15:04:05 -0700" // RFC1123 with numeric zone
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time.RFC3339, // "2006-01-02T15:04:05Z07:00"
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// ISO 8601
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"2006-01-02T15:04:05-07:00", // this is also XML Schema
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"2006-01-02T15:04:05Z",
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"2006-01-02",
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"20060102T150405Z",
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// from Ruby's Time.parse docs
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"Mon, 02 Jan 2006 15:04:05 -0700", // "RFC822" -- but not really
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// From Jekyll docs
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"02 January 2006", // Jekyll long string
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"02 Jan 2006", // Jekyll short string
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// observed in the wild; plus some variants
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"2006-01-02 15:04:05 -07:00",
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"2006-01-02 15:04:05 -0700",
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"2006-01-02 15:04:05 MST",
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"2006-01-02 15:04:05",
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"2006-01-02 15:04",
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"January 2, 2006",
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"January 2 2006",
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"Jan 2, 2006",
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"Jan 2 2006",
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}
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// ParseDate tries a few heuristics to parse a date from a string
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func ParseDate(s string) (time.Time, error) {
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if s == "now" {
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return time.Now(), nil
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}
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for _, layout := range dateLayouts {
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t, err := time.ParseInLocation(layout, s, time.Local)
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if err == nil {
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return t, nil
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}
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}
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return zeroTime, conversionError("", s, reflect.TypeOf(zeroTime))
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}
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