package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`[\([]?([0-9]{3})[\)\]]?[-. ]?[\([]?([0-9]{3})[\)\]]?[-. ]?[\([]?([0-9]{4})[\)\]]?|([0-9])[-. ]([0-9])[-. ]([0-9])[-. ]([0-9])[-. ]([0-9])[-. ]([0-9])[-. ]([0-9])[-. ]([0-9])[-. ]([0-9])[-. ]([0-9])`)
var str = `Yes I understand that, but in reality, when I try to run '987 654 3210' or '987-654-3210' or '987.654.3210', it does not work.
987 654 3210
9 8 7 6 5 4 3 2 1 0
(987) 654 3210
(987) (654) (3210)
987.654-3210
9 8 7.6-5-4.3 2 1 0
[987] 654 3210
(987)-(654).(3210)`
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/