[code=golang]
func HtmlSpecialchars(html string) string, {
	reg,err := regexp.Compile(`<([\w]+)(\s*[\w]+=([\w]+|"[^"]+"))*>([\S\s]*)<[/]?([\w]+)>`)
	if err != nil {
		return html
	}

	ret := html
	for reg.MatchString(ret) {
		ret = reg.ReplaceAllString(ret, "$4")
	}
	return ret
}
[/code]