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[Bug 29961] New: [XP31] Kleene operator

From: <bugzilla@jessica.w3.org>
Date: Sat, 29 Oct 2016 03:33:51 +0000
To: public-qt-comments@w3.org
Message-ID: <bug-29961-523@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=29961

            Bug ID: 29961
           Summary: [XP31] Kleene operator
           Product: XPath / XQuery / XSLT
           Version: Candidate Recommendation
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: trivial
          Priority: P2
         Component: XPath 3.1
          Assignee: jonathan.robie@gmail.com
          Reporter: abel.braaksma@xs4all.nl
        QA Contact: public-qt-comments@w3.org
  Target Milestone: ---

In section A.1.2 (extra grammatical constraints), the part on occurrence
operators [1] introduces the term "Kleene operators".

While it may be considered common knowledge what a Kleene operator is (and
certainly it can be deducted here from the context), it is the only usage of
his name, so I suggest either to drop it, or to reference it, or to change it
to say:

"As written, the grammar in A XPath 3.1 Grammar is ambiguous for some forms
using the '+' and '*' occurrence indicators, sometimes also referred to as
Kleene operators. [...]"


[1]
https://www.w3.org/XML/Group/qtspecs/specifications/xquery-31/html/xpath-31-diff.html#parse-note-occurrence-indicators

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