package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?:(?:\d{1,3}\.){3}\d{1,3}\s*){2}([a-z]+)`)
var str = `192.10.678.234 192.12.898.123 public
192.10.567.6 3.3.3.3 public
192.20.123.39 123.34.31.678 private`
var substitution = "\1"
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/