package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(\d+)(?<!10)\.(\d+)(?<!192\.168)(?<!172\.(1[6-9]|2\d|3[0-1]))\.(\d+)\.(\d+)`)
var str = `10.10.2.246
10.10.2.246
10.10.2.246
169.54.137.73
10.10.2.246
10.10.2.246
10.10.2.246
188.172.213.5
`
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/