package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^(?:ISBN(?:-10)?:? )?(?:(?<number>\d{9})|(?=[\dX -]{13}$)(?<registrationGroup>\d{1,5})[ -](?<registrant>\d{1,7})[ -](?<publication>\d{1,6})[ -])(?<checkDigit>[\dX])$`)
var str = `359821508X
3598215083X
35982150X
3-598-21508-8
3-598-215087-8
3-598-2150-8
3598-2150-8
359821-5-0-8`
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/