When I try
xml-to-json(
<map xmlns="http://www.w3.org/2005/xpath-functions"; key="root">
<number key="n">2</number>
<string key="foo">a</string>
<boolean key="checked">true</boolean>
</map>,
map { 'indent' : true() }
)
with BaseX 8.6.5 I get an error "[FOJS0006] Element 'map' must have no
key.".
Saxon 9.8 however parses that input fine.
Looking at https://www.w3.org/TR/xpath-functions-31/#func-xml-to-json
there is some text saying "An element node E having a key attribute
and/or an escaped-key attribute provided that E would satisfy one of the
above conditions if the key and/or escaped-key attributes were removed."
which sounds as if a "key" attribute should or could be ignored.
Or is BaseX schema-validating the argument and that way ("Otherwise, the
processor may attempt to validate the element against the schema, in
which case it is treated as valid if and only if the outcome of
validation is valid.") the "key" attribute is not allowed?
It seems the spec that way allows some confusing lack of interoperability.
