The saxon:entity-ref element is useful to generate entities such as   in HTML output. To do this, write:

<saxon:entity-ref name="nbsp"/>

Note: the preferred way to produce a non-breaking space character in the output is simply to write &#160; or &#xa0; in the stylesheet. By default, with HTML output, this will be serialized as &nbsp;, though the way it is serialized doesn't actually matter as far as the HTML browser is concerned.

saxon:entity-ref is permitted only in contexts where disable-output-escaping would be permitted: that is, when writing to a serialized output destination.