Return sequence of element nodes with IDREF values
containing at least a specified ID value.
The following construct(s) refer to this construct:
fn:idref(xs:string* $arg, node() $node) => element()*
This function returns a sequence, in document order, of those elements
that are in the same document as $node that have
an IDREF value matching one or more of the xs:IDs in the list of
candidate xs:IDs. The list of xs:IDs results from parsing the string argument:
the string is treated as a sequence of tokens separated by space, and each of
the tokens is considered a value of type xs:ID. If the token is
not a lexically valid xs:ID value, it is ignored. If no
xs:ID value matches the IDREFS value of any element,
the function returns the empty sequence. The match is performed strictly using
Unicode codepoints, that is, without a collation.
This function allows reverse navigation from xs:ID values or
DTD ID values to xs:IDREF, xs:IDREFS or
the DTD types IDREF or IDREFS values.
| $arg |
string that can be tokenized into valid values of type
|
|---|---|
| $node |
a node |