Re: Boolean Value of a Sequence of Booleans

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Subject: Re: Boolean Value of a Sequence of Booleans
From: "G. Ken Holman g.ken.holman@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 5 Dec 2014 21:38:49 -0000

At 2014-12-05 20:39 +0000, Eliot Kimber ekimber@xxxxxxxxxxxx wrote:

Using XSLT2, I'm examining all the items in a key() map to see if any
entries in the map have more than 1 item. I'm doing this by iterating over
the keys. I'm then producing a boolean for each iteration and capturing
the sequence of booleans in a variable.

Not knowing the details of your key invocation, could you not do something like:

some $key in $allKeys satisfies count(key($key,$lookup)) > 1

But my question still remains: is there a built-in way to apply boolean
operators to a sequence of booleans or would I need to write my own
function?

If your operator is OR then:

some $b in $booleanSeq satisfies $b

If your operator is AND then:

every $b in $booleanSeq satisfies $b

By using 'some' and 'every' you are passing on the logic and optimization to the processor.

I hope this helps ... unless I'm missing something in your requirement.

. . . . . . Ken


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Current Thread
Boolean Value of a Sequence of Booleans Eliot Kimber ekimber@xxxxxxxxxxxx - 5 Dec 2014 20:39:21 -0000 Dimitre Novatchev dnovatchev@xxxxxxxxx - 5 Dec 2014 21:11:17 -0000 G. Ken Holman g.ken.holman@xxxxxxxxx - 5 Dec 2014 21:38:49 -0000 <=

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