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Re: [xsl] [XSLT Streaming] Are xsl:for-each and xsl:iterate equivalent?

Subject: Re: [xsl] [XSLT Streaming] Are xsl:for-each and xsl:iterate equivalent?
From: David Carlisle <davidc@xxxxxxxxx>
Date: Thu, 29 Aug 2013 14:22:46 +0100

On 29/08/2013 14:10, Costello, Roger L. wrote:
I realize that xsl:iterate has some capabilities that xsl:for-each
doesn't have, such as the ability to break out of the loop before
processing the entire sequence.

But leaving that aside, they are both ways of looping over a
sequence of items, right?

It's best not to think of for-each in those terms (even though it can be streamed if the select attribute xpath is streamable) as in general it gives no guarantee on execution order at all (which is why it wouldn't make sense to "break out" of the loop). It is best to think of it as being a parallel region in which all the selected items are processed (even if a given, or all, implementations actually process the items one at a time)


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