package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)username\s([a-zA-Z0-9]*)(?>\sprivilege\s([0-9]{1,2}))?.*`)
var str = `username ytnflvby secret <hash>
username eec privilege 15 secret <hash>
username protuser privilege 3 password 7 <hash>
username wheel privilege 0 secret <hash>
`
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/