成员的完整列表，这些成员属于 LatexDocVisitor::TableState,包括所有继承而来的类成员

currentColumn	LatexDocVisitor::TableState
firstRow	LatexDocVisitor::TableState
inColSpan	LatexDocVisitor::TableState
inRowSpan	LatexDocVisitor::TableState
numCols	LatexDocVisitor::TableState
rowSpans	LatexDocVisitor::TableState