>The simplest way to check that a list of strings is in sorted 
>order is to
>sort it and see if the output equals the input. It's probably 
>possible to
>improve the following:

code snipped for brevity.

Thanks Mike, I'll study that.
Turns out that I had been losing data
for months due to this one!

There's a design pattern here.
Is the sorted output tree count 
identical to the 
unsorted input count.
(Probably another one for Schematron?)

Regards, DaveP


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