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Re: searching for closest previous element

Subject: Re: searching for closest previous element
From: Norman Walsh <norm@xxxxxxxxxxxxx>
Date: Wed, 18 Mar 1998 12:38:27 -0500
| 
| "Reverse" takes a lot of time with many elements.  But there seems no 
| way around it: there's no quick way to access the last node in a node 
| list, so that I can walk the tree list backwards.

From dblib.dsl:

(define (node-list-last nl)
  ;; REFENTRY
  ;; PURP Implements node-list-last as per ISO/IEC 10179:1996
  ;; DESC
  ;; Implements 'node-list-last' as per ISO/IEC 10179:1996
  ;; /DESC
  ;; AUTHOR From ISO/IEC 10179:1996
  ;; /REFENTRY
  (node-list-ref nl
		 (- (node-list-length nl) 1)))


--norm


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