[Bug 26742] New: [xslt 3.0] Histogram of preceding sibling counters

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[Bug 26742] New: [xslt 3.0] Histogram of preceding sibling counters

Bugzilla from bugzilla@jessica.w3.org
https://www.w3.org/Bugs/Public/show_bug.cgi?id=26742

            Bug ID: 26742
           Summary: [xslt 3.0] Histogram of preceding sibling counters
           Product: XPath / XQuery / XSLT
           Version: Working drafts
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XSLT 3.0
          Assignee: [hidden email]
          Reporter: [hidden email]
        QA Contact: [hidden email]

At one time we proposed that a streamed node should carry with it some kind of
set of counters indicating basic information about the number of preceding
siblings of different kinds. I don't believe there is now any functionality in
the spec that relies on this. However, I found a couple of references to the
idea:

Section 2.10 "However, constructs (for example, simple forms of xsl:number, and
simple positional patterns) that require knowledge of the number of preceding
elements by name are permitted."

Similarly in 4.6: "Summary data about the preceding siblings of the node, and
of each of its ancestor nodes:
specifically, for each distinct combination of node kind, node name, and type
annotation, a count of the number
of preceding siblings that have that combination of properties. This
information allows patterns such as
match="para[1]" to be used, and it permits some limited use of the xsl:number
instruction."

I think these two paragraphs are obsolete and should be deleted.

(For info: Saxon's streaming implementation does in fact carry this
information, but makes very little use of it; about the only use I can find is
to support simple positional patterns such as para[1]).

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[Bug 26742] [xslt 3.0] Histogram of preceding sibling counters

Bugzilla from bugzilla@jessica.w3.org
https://www.w3.org/Bugs/Public/show_bug.cgi?id=26742

Michael Kay <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from Michael Kay <[hidden email]> ---
The WG agreed that these paragraphs should go.

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[Bug 26742] [xslt 3.0] Histogram of preceding sibling counters

Bugzilla from bugzilla@jessica.w3.org
In reply to this post by Bugzilla from bugzilla@jessica.w3.org
https://www.w3.org/Bugs/Public/show_bug.cgi?id=26742

Michael Kay <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #2 from Michael Kay <[hidden email]> ---
The changes have been applied.

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