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[Bug 23411] New: [xslt 3.0] Accumulators and xsl:stream

From: <bugzilla@jessica.w3.org>
Date: Tue, 01 Oct 2013 16:44:07 +0000
To: public-qt-comments@w3.org
Message-ID: <bug-23411-523@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=23411

            Bug ID: 23411
           Summary: [xslt 3.0] Accumulators and xsl:stream
           Product: XPath / XQuery / XSLT
           Version: Working drafts
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XSLT 3.0
          Assignee: mike@saxonica.com
          Reporter: mike@saxonica.com
        QA Contact: public-qt-comments@w3.org

We say:

If a call on accumulator-before or accumulator-after is evaluated for a
streamable accumulator then:

The evaluation must occur in the course of evaluating a pre-descent or
post-descent instruction in some streamed template rule T, respectively

This appears to rule out accessing an accumulator as the last thing done within
an xsl:stream instruction.

We should generalize the rules about pre-descent and post-descent instructions
to cover the sequence constructor in xsl:stream as well as that in a streamable
template rule.

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