package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`PO\h*-\h*\K|(?<!\G)\b([A-Z\d]{5})\b`)
var str = `License #: U9X5L
Purchase #:PO-A6H4Y
Purchase #:PO - A6H4Y
SKU #: IRK5L8BN`
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/