[Webkit-unassigned] [Bug 118856] New: mfenced element and its expanded form do not stretch fences the same way

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=118856

           Summary: mfenced element and its expanded form do not stretch
                    fences the same way
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.8
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: MathML
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: fred.wang at free.fr


mfenced should be equivalent to its expanded form

<mrow>
   <mo fence="true"> opening-fence </mo>
   <mrow>
      arg#1
      <mo separator="true"> sep#1 </mo>
      ...
      <mo separator="true"> sep#(n-1) </mo>
      arg#n
   </mrow>
   <mo fence="true"> closing-fence </mo>
</mrow>

However in Mac, it seems that mfenced does not take into account the size of separators to compute the stretch size (see the result of mathml/presentation/fenced-mi.html in bug 118853 comment 3).

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