Xslt3

Defines the body executed for each group of items sharing the same merge key during an xsl:merge operation, with access to the merged items and current key.

Defines the sort key for items in an xsl:merge-source, determining how items from different sources are aligned and interleaved during merging.

Defines one sorted input sequence for xsl:merge, specifying the source data and its merge keys so the merge algorithm can interleave items correctly.

Declares a named mode and its default behaviour when no template matches, enabling modular transformation strategies in XSLT 3.0.

Advances an xsl:iterate loop to the next item in the sequence, optionally updating loop parameters to carry state forward.

Generates fallback content when the sibling sequence constructor produces no nodes, enabling clean empty-state handling without extra variables.

Generates content only when the sibling sequence constructor produces at least one node, allowing conditional headers or wrappers without extra variables.

Processes a source document in streaming mode without loading it fully into memory, enabling transformation of arbitrarily large XML files.

Evaluates an XPath expression or sequence constructor and catches any dynamic errors, enabling graceful error handling in XSLT 3.0.

Suppresses the entire wrapper element, including its start and end tags, when its content sequence constructor produces no nodes.