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On 26/04/2012 16:51, Michele R Combs wrote:
Hi all --Roughly, it selects all the @type attributes provided there is no @type attribute later in the document with the same value. And it does this very inefficiently (n*2 performance where n is the document size) - it can be done much more efficiently using keys. It also doesn't do quite what I said. Assuming it's used with "/" as the context item, It's actually looking for all @type attributes whose path is /ead/archdesc/dsc//container, provided they aren't the same as a following @type attribute whose path is //container. If there are @type attributes that match the first path and not the second, that could lead to some strange effects. It could even select duplicates. If there happens to be a structure like this: <container type="x"> <container type="x"/> </container> then both type attributes will be selected, because the second is not "following" the first. Michael Kay Saxonica
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