Xpath

Returns a sequence of 1-based integer positions where a value occurs in a sequence, using value equality.

Returns a new sequence with one or more items inserted at a specified 1-based position, without modifying the original sequence.

Looks up nodes using a named xsl:key index, returning all nodes whose key value matches the given value.

Returns true if the context node's xml:lang attribute matches the given language code, following BCP 47 prefix rules.

Returns the size of the context node-set, i.e. the index of the last item in the current iteration context.

Returns the local part of the expanded name of a node, stripping any namespace prefix.

Converts every character of a string to its Unicode lowercase equivalent using locale-independent Unicode case mapping.

Returns true if a map contains an entry with the specified key, false otherwise.

Creates a singleton map containing exactly one key-value pair.

Returns the value associated with a key in a map, or the empty sequence if the key is not present.