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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Removing entire branches from a node-set
 I'd like to create a node-set by applying a specific criterion to whole branches. Formally: test(): a predicate test on nodes tree(R, C1, C2, ...): a tree with root R and immediate children C1, C2, ... rfilter(T) = NULL, if not test(T.root)
tree (T.root, rfilter (T.c1), rfilter (T.c2), ...), if test (T.root)The problem is, if I do something like /descendant::node()[test()], the children of nodes that do not meet test() are still considered. Specifically, what I want is having an input like this: <root> <node>This node should always be included in the node-set</node> <node lang="en">This node should only be included in the <b>English</b> node-set</node> <node lang="de">This node should only be included in the <b>German</b> node-set</node> </root> test() = (@lang='en' or not(@lang)) Of course, the problem comes from /root/node[3]/b: it passes test(), but since it has an ancestor (/root/node[3]) that doesn't, it shouldn't be included in the node-set. I tried /descendant::node()[(ancestor-or-self::node()/@lang='en'
or not (ancestor-or-self::node()/@lang))
and not(ancestor-or-self::node()/@lang!='en')]but this just results in everything getting included in the node-set several times (as a grandchild of an included node, then as a child, then as itself), plus, since it matches /root, it first includes the whole tree unfiltered :( Any ideas how I could solve this? --
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