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[Bug 21011] New: [XP30] [XQ30] Context position definition

From: <bugzilla@jessica.w3.org>
Date: Fri, 15 Feb 2013 09:51:24 +0000
To: public-qt-comments@w3.org
Message-ID: <bug-21011-523@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=21011

            Bug ID: 21011
           Summary: [XP30] [XQ30] Context position definition
    Classification: Unclassified
           Product: XPath / XQuery / XSLT
           Version: Candidate Recommendation
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XPath 3.0
          Assignee: jonathan.robie@gmail.com
          Reporter: tim@cbcl.co.uk
        QA Contact: public-qt-comments@w3.org

The focus is defined as follows:

"The first three components of the dynamic context (context item, context
position, and context size) are called the focus of the expression."

The value of the context position includes:

"Definition: ... When the focus is defined, the value of the context position
is an integer greater than zero. ..."

Perhaps this should be stated as:

"Definition: ... When the context item is defined, the value of the context
position is an integer greater than zero. ..."

to avoid a circular definition of the context position in terms of the focus,
of which context position is itself a part.

Also, in the definition of context, size perhaps

"Its value is always an integer greater than zero. "

should be amended to

"When the context item is defined, its value is always an integer greater than
zero. "

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