// Encode returns the encoded-word form of s. If s is ASCII without special
// characters, it is returned unchanged. The provided charset is the IANA
// charset name of s. It is case insensitive.
public static @string Encode(this WordEncoder e, @string charset, @string s)
{
if (!needsEncoding(s))
{
return(s);
}
return(e.encodeWord(charset, s));
}
