[Webkit-unassigned] [Bug 159513] New: MathOperator: Add a mapping from combining to non-combining equivalents

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=159513

            Bug ID: 159513
           Summary: MathOperator: Add a mapping from combining to
                    non-combining equivalents
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: MathML
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fred.wang at free.fr

Many math fonts provide stretch variants and assemblies for combining characters instead of their non-combining equivalent contrary to what MathML says (https://www.w3.org/TR/MathML3/chapter7.html#chars.comb-chars). For example ̲ U+0332 COMBINING LOW LINE instead of _ U+005F LOW LINE. We should have mapping from combining to non-combining forms in order to be able to use the corresponding variant and assemblies from these math fonts.

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