package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^((2(?!5?[6-9])|1|(?!0\B))\d\d?\.?\b){4}$`)
var str = `1.160.10.240
192.001.32.47
1.2.3.
1.2.3
0.00.10.255
1.2.$.4
255.160.0.34
.1.1.1
1..1.1.1
1.1.1.-0
.1.1.+1
1 1 1 1
1
10.300.4.0
10.4F.10.99
fruit loops
1.2.3.4.5
0.0.0.0
0.0 0.0.
1.23..4`
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/