[xsl] What is $p in the definition of fn:subsequence ?

Subject: [xsl] What is $p in the definition of fn:subsequence ?
From: "Dimitre Novatchev" <dnovatchev@xxxxxxxxx>
Date: Fri, 4 Jul 2008 20:16:34 -0700
The definition of the fn:subsequence in the F & O   W3C  Recommendation at:


contains the following text:

"Summary: Returns the contiguous sequence of items in the value of
$sourceSeq beginning at the position indicated by the value of
$startingLoc and continuing for the number of items indicated by the
value of $length.

In the two-argument case, returns:

$sourceSeq[fn:round($startingLoc) le $p]
In the three-argument case, returns:

$sourceSeq[fn:round($startingLoc) le $p
     and $p lt fn:round($startingLoc) + fn:round($length)]"

There is no definition of $p and this definitely seems to be a bug in
the document.

Could somebody, please, confirm what is meant by "$p" in this text?

Dimitre Novatchev
Truly great madness cannot be achieved without significant intelligence.
To invent, you need a good imagination and a pile of junk
Never fight an inanimate object
You've achieved success in your field when you don't know whether what
you're doing is work or play

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