html.EscapeString
// EscapeString escapes special characters like "<" to become "<". It
// escapes only five such characters: <, >, &, ' and ".
// UnescapeString(EscapeString(s)) == s always holds, but the converse isn't
// always true.
func EscapeString(s string) string
html.Fuzz
func Fuzz(data []byte) int
html.UnescapeString
// UnescapeString unescapes entities like "<" to become "<". It unescapes a
// larger range of entities than EscapeString escapes. For example, "á"
// unescapes to "รก", as does "á" and "á".
// UnescapeString(EscapeString(s)) == s always holds, but the converse isn't
// always true.
func UnescapeString(s string) string