This site is work in progress and therefore incomplete yet.
Miscellaneous steps, which are usually used for housekeeping purposes in the pipeline.
C E F H I M S W
p:cast-content-type - Changes the media type of a document.
p:compare - Compares documents for equality.
p:count - Count the number of documents.
p:error - Raises an error.
p:filter - Selects parts of a document.
p:hash - Computes a hash code for a value.
p:identity - Copies the source to the result without modifications.
p:make-absolute-uris - Make specific URIs in the document absolute.
p:set-properties - Sets or changes document-properties.
p:sink - Discards all source documents.
p:wrap-sequence - Wraps a sequence of documents in an element.