package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(?:ID Number: ([A-Z0-9]{2})|(?<!^)\G):?([A-Z0-9]{2})`)
var str = `ID Number: 4D:9B:C4:C6:F1:G5:Y6 foo :C5:D4:Y6`
var substitution = "$1 $2"
fmt.Println(re.ReplaceAllString(str, substitution))
}
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/