package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?mi).*\.(\w{3,})$`)
var str = `http://www.w3schools.com/jsref/jsref_regexp_exec.asp
https://translate.google.com/#en/pt/Thank%20you%20Engr!%20That%20is%20awesome.php
www.facebook.com/index.asp`
var substitution = "$1"
fmt.Println(re.ReplaceAllString(str, substitution))
}
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/