If i have a nested list, is it easy or possible to select a slice of it?
For example, say I find the slice I want using
;-> ((0 3 1072))
(println end-pos)
;-> ((0 3 4973))
How can I remove everything outside that range? Or is it impossible?
I resorted to doing it the old-fashioned way... :)
(set 'end-pos (ref '(a ((name "appendix") (id "appendix"))) xml-source ))
(for (x (last start-pos) (last end-pos))
(push (xml-source (extend (chop start-pos) (list x))) res -1))
Ahh, now I understand, what you were looking for:
start-pos ;=> (0 3 1072)
end-pos ;=> (0 3 4973)
(set 'start (last start-pos))
(set 'size (- (last end-pos) (last start-pos)))
(start size (xml-source (chop start-pos)))
We assume that the chopped part of start-pos and end-pos are the same index vector. From you first post in the thread I assume start-pos an end-pos are both 3-element-lists where the first two elements are the same. So basically (xml-source (chop start-pos)) picks the sublist from which we take a slice of.
Yes, that's much better!