package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`((https?|ftp)://(?:www\.|(?!www))[^\s.]+\.\S{2,}|www\.\S+\.\S{2,})`)
var str = `Look at http://www.google.com some more text here possibly
Look at https://www.google.com some more text here possibly
Look at ftp://www.google.com some more text here possibly
Look at http://google.com some more text here possibly
Look at www.google.com some more text here possibly`
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/