package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^(?=[a-z][a-z0-9.-]{1,14}[a-z0-9]$)(?!.*--)[a-z0-9-]+(?:\.[a-z][a-z0-9-]+[a-z0-9])*$`)
var str = `test
test.test
ab1
abc.ab9.a-c
abc.abc.a-c.a-3
aaa
a-a-a
a-3
abc.abc.a-c.-b-a
test.t
test--s
abc.ab9.a--
2-a`
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/