[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Find the number of elements that are prior to the
On 12.03.2019 18:35, Costello, Roger L. costello@xxxxxxxxx wrote:
I have an XML document containing a long list of Byte elements, e.g., I have a string of hex values, e.g., What is an efficient way to solve this problem? I think it can be done in XQuery 3 with a windowing clause, I am not sure whether you need a sliding or a tumbling window but along the lines of let $req := '04000000FF' let $len := string-length($req) return head( for sliding window $w in /Bytes/Byte start $b1 at $s when $b1 = substring($req, 1, 2) end at $e when $e - $s + 1 = $len idiv 2 where string-join($w) eq $req return $s - 1 )
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