component-list-descendant-node-list

Description

Finds the first ancestor of inputnd in complist and then returns a list of all the elements in inputlist within that component.

WARNING: this requires walking over *all* the descendants of the ancestor node. This may be *slow*.

Author

Norman Walsh, <ndw@nwalsh.com>

Source Code

(define (component-list-descendant-node-list inputnd inputlist complist)
  ;; Find all elements of a list of elements in a component
  (let ((nd (ancestor-member inputnd complist)))
    (let loop ((nl (descendants nd)) (result (empty-node-list)))
      (if (node-list-empty? nl)
	  result
	  (if (member (gi (node-list-first nl)) inputlist)
	      (loop (node-list-rest nl) 
		    (node-list result (node-list-first nl)))
	      (loop (node-list-rest nl) 
		    result))))))