Bug #5483
Updated by Michael Kay about 2 years ago
By design, a filter expression of the form `SEQ[position() `SEQ[posiiton() = 1 to $n]` should be optimised to `subsequence(SEQ, 1, $n)`. This isn't happening (revealed by xslt30-extra test case opt-016). The subexpression `1 to $n` is extracted into a variable, which means that the pattern `posiiton() = 1 to $n` doesn't get recognized.
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