package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`\w+@(?!gmail|hotmail|yahoo)\w+(?:-\w+)?\.[A-Za-z]{2,4}`)
var str = `Is there any validation in javascript or ruby on rails to allow user registration via corporate email
for example of corporate email:-
1) jai@jai.com where jai is domain name
2) ajay@google.com where google.com is domain name
and not allow other email service email
example :-
1) jai@gmail.com
2) jai@hotmail.com
3) jai@yahoo.com`
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/