package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^(?:(?:(?:0?[1-9]|1\d|2[0-8])[/](?:0?[1-9]|1[0-2])|(?:29|30)[/](?:0?[13-9]|1[0-2])|31[/](?:0?[13578]|1[02]))[/](?:0{2,3}[1-9]|0{1,2}[1-9]\d|0?[1-9]\d{2}|[1-9]\d{3})|29[/]0?2[/](?:\d{1,2}(?:0[48]|[2468][048]|[13579][26])|(?:0?[48]|[13579][26]|[2468][048])00))$`)
var str = `31/5/2000
31/05/2000
32/5/2000
30/6/2000
31/6/2000
28/2/2014
29/2/2014
28/02/2016
29/02/2016`
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/