func main() {
reg := regex.Compile(`\s+|[-+*/]|\d+(?:\.\d+)?(?:[eE][-+]?\d+)?|\(#{0}+?\)`)
for _, u := range reg.FindAllStringSubmatch("1+(2-3)*(4/5.33)*((6-7)+8)") {
for _, v := range u {
fmt.Print(v, " ")
}
fmt.Println("")
}
}
func main() {
reg := regex.Compile(`(?<!\d)(?:0|1\d{0,2}|2(?:[0-4]\d?|5[0-5]?|[6-9])?|[3-9]\d?)\.#{1}\.#{1}\.#{1}(?::\d{1,5})?`)
for _, s := range reg.FindAllStringSubmatch("127.0.0.1:8087 255.33.1.2:12345 217.169.209.2:6666 192.227.139.106:7808") {
fmt.Printf("%-24s", s[0])
for _, x := range s[1:] {
fmt.Printf("%-8s", x)
}
fmt.Println("")
}
}
func main() {
reg := regex.Compile(`(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})(?::(\d{1,5}))?`)
for _, s := range reg.FindAllString("127.0.0.1:8087 255.33.1.2:12345 217.169.209.2:6666 192.227.139.106:7808") {
fmt.Printf("%-24s\n", s[0])
}
}