package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^([0-9A-Fa-f]{0,4}:){2,7}([0-9A-Fa-f]{1,4}$|((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.|$)){4})$`)
var str = `Valid:
1:2:3:4:5:6:7:8
1::
::1
2001:db8:3:4::192.0.2.33
64:ff9b::192.0.2.33
FEDC:BA98:7654:3210:FEDC:BA98:7654:3210
1080:0:0:0:8:800:200C:417A
0:0:0:0:0:0:0:1
::0:0:0:FFFF:129.144.52.38
FEDC:BA98::3210:FEDC:BA98:7654:3210
::13.1.68.3
Invalid:
128.0.0.1
FEDC:BA98:7654:3210:FEDC:BA98:7654:3210:AA31
`
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/