package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)((25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.){3}(25[0-4]|2[0-4][0-9]|1[0-9][0-9]|[0-9]?[1-9])`)
var str = `192.168.1.1
8.8.8.8
9.9.9.9
127.0.0.1
255.255.255.255 # can't end in 255, reserved for broadcast
0.0.0.0 # can't end in 0, i don't know what that's reserved for
0.0.0.1
`
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/