Re: [xsl] Need help with XSLT tokenize

["Alan Painter alan.painter@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

xsl:iterate has become my current favorite XSL instruction.
It's so nifty how it incorporates the initial state, the state change per
iteration and the different possibilities for termination.
Also, no need to worry about the conditions for tail-recursion.


On Thu, Aug 13, 2020 at 1:10 PM Michael Kay mike@xxxxxxxxxxxx <
xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:

>
> Confession: I came relatively late to functional programming and Ibve
> probably only used fold-left about a dozen times.
>
>
> Me too. But once you discover folds (or xsl:iterate) you find yourself
> using them a lot.
>
> I did an (XSD-like) validator in Scala once, and used a fold operation to
> process a sequence of elements through a finite state machine (with the
> data passed from one iteration to the next being the state in the machine);
> the result was a single line of code that did the same thing as about 30
> lines of procedural Java code in the Saxon XSD validator. I found it really
> hard to believe that it could be so simple.
>
> Michael Kay
> Saxonica
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