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Re: Find the number of elements that are prior to the

Subject: Re: Find the number of elements that are prior to the series of elements that match a string?
From: "Michael Kay mike@xxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 12 Mar 2019 23:50:39 -0000
Re:  Find the number of elements that are prior to the
> It would be nice if a particular XSLT processor implements lazily the
> index-of() function,

Saxon does so.
>
> Of course, exactly the same reasoning applies to the implementation of
> <xsl:key> and the key() function, if a smart enough XSLT processor
> allows the key() function to operate on a partially-built index, and
> when a solution is found the building of the index is halted.

That's certainly theoretically possible, though it's considerably harder to
achieve if only because of the multi-threading complications.

Michael Kay
Saxonica

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