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[Bug 24648] New: Streamability of unparsed text

From: <bugzilla@jessica.w3.org>
Date: Thu, 13 Feb 2014 09:59:05 +0000
To: public-qt-comments@w3.org
Message-ID: <bug-24648-523@http.www.w3.org/Bugs/Public/>

            Bug ID: 24648
           Summary: Streamability of unparsed text
           Product: XPath / XQuery / XSLT
           Version: Last Call drafts
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XSLT 3.0
          Assignee: mike@saxonica.com
          Reporter: abel.online@xs4all.nl
        QA Contact: public-qt-comments@w3.org

While I realize this subject is not new, it came up on the XSL List and Dimitry
Novatchev sent me a direct note pointing to it:

The points raised in this discussion are:

1) large text nodes are not streamable (consider a large base64 chunk)
2) externally resourced unparsed-text is not streamable, only if you are lucky
enough that unparsed-text-lines is processed using streaming, but the function
itself is stable, so buffering the whole input can be required.

Dimitry expressed his concern about both. I think we only need to address the
second point, in the sense that we should allow something similar to:

<xsl:stream unparsed-text-lines="http://example.com/largetext.txt">
   <!-- each context item here is a line and is grounded -->

The analysis of this is simple enough, the use-case is to allow multiple reads
to be non-deterministic.

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Received on Thursday, 13 February 2014 09:59:07 UTC

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