package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^style="url\((['"])?(?:\.\.)?(?<url>[^'"]+)\1?\)"`)
var str = `style="url(/test.png)"
style="url("/test.png")"
style="url('/test.png')"
style="url(../test.png)"
style="url("../test.png")"
style="url('../test.png')"`
var substitution = "style="url($1http://mysite.com$2$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/