[Webkit-unassigned] [Bug 85729] New: Add support for menclose element

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=85729

           Summary: Add support for menclose element
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
               URL: http://www.w3.org/TR/MathML/chapter3.html#presm.menclo
                    se
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: MathML
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: fred.wang at free.fr
                CC: fred.wang at free.fr


"The menclose element renders its content inside the enclosing notation specified by its notation attribute. menclose accepts a single argument possibly being an inferred mrow of multiple children"

MathJax relies on the menclose element to implement various LaTeX commands like \enclose, \boxed, \cancel, \bcancel, \xcancel or \cancelto. Other examples include "\begin{array}{c}\hline ... \end{array}" or "\begin{array}{c}\hdashline ... \end{array}".

Some reftests:
http://devel.mathjax.org/testing/testsuite/MathMLToDisplay/Presentation/GeneralLayout/menclose/

A testcase:
http://www.w3.org/Math/testsuite/build/main/Presentation/GeneralLayout/menclose/menclose-cancellation1-simple.xhtml

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