package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?i)((?:(?:https?):\/\/)?(?:\S+(?::\S*)?@)?(?:(?:[a-z0-9][a-z0-9\-]*?[a-z0-9]+)(?:\.(?:[a-z0-9\-])*[a-z0-9]+)*(?:\.(?:[a-z]{2,})(:\d{1,5})?))(?:\/[^\s]*)?)(?:[ ]+[^< ]|\Z|\n)`)
var str = `jkNKLJNLKJASSDNBVKLJAVD http://www.google.com
http://www.google.com
<a href="http://www.w3schools.com">Visit W3Schools.com!</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/