Re: 3 XSLT2 quickies

Note also that the rule about concatenating text nodes comes into play here:
if your input were

<a>foo<!--hey!-->bar</a>

the result would be "foobar" rather than "foo-ostrich-bar" because of the
rule that adjacent text nodes are concatenated before atomization.

document-node(schema-element(rubberduck))


document-node()[child::schema-element(rubberduck)]

Obviously this only works when used as a step in a path expression, or as pattern: not for example when used in an "as" attribute.

Technically I think the rewrite is more like:

document-node()[count(child::*)=1 and count(child::text()=0) and
(child::schema-element(rubberduck))]