How do I XML-encode a string in Erlang?

Question

I have a erlang string which may contain characters like & " < and so on:

1> Unenc = "string & \"stuff\" <".
ok

Is there a Erlang function somewhere that parses the string and encodes all the needed HTML/XML entities, such as:

2> Enc = xmlencode(Unenc).
"string & "stuff" <".

?

My use case is for relatively short strings, which come from user input. The output strings of the xmlencode function will be the content of XML attributes:

<company name="Acme &amp; C." currency="&euro;" />

The final XML will be sent over the wire appropriately.