package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?mi)(?<year>[\d]{4})-(?<month>0[1-9]|1[1-2])-(?<day>0[1-9]|[1-2][0-9]|3[0-1])T(?<hour>[0-1][0-9]|2[0-3]):(?<minute>[0-5][0-9]):(?<second>[0-5][0-9])(?:Z|.(?<millisecond>[0-9]{2,3}))`)
var str = `2021-03-31T19:52:52.01
2021-03-31T19:52:52Z
2021-11-31T19:52:52.010
2021-12-31T19:52:52Z
2021-12-31T23:52:52Z`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/