bool hasOperatorFlag(MathMLOperatorDictionary::Flag flag) const { return m_operatorFlags & flag; }
// FIXME: The displaystyle property is not implemented (https://bugs.webkit.org/show_bug.cgi?id=118737).
bool isLargeOperatorInDisplayStyle() const { return !hasOperatorFlag(MathMLOperatorDictionary::Stretchy) && hasOperatorFlag(MathMLOperatorDictionary::LargeOp); }
+ bool isVertical() const { return m_isVertical; }
virtual void updateStyle() override final;