D2d offscreen rendering finish up.

src/publishing/latex/LatexMathExpression.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include "LatexSymbols.h"
+
+#include <string>
+#include <memory>
+#include <vector>
+
+class LatexMathExpression
+{
+public:
+	LatexMathExpression(const std::string& expression = {})
+		: mRawExpression(expression)
+	{
+
+	}
+
+	void parse()
+	{
+		for (auto c : mRawExpression)
+		{
+
+		}
+	}
+
+	const std::vector<LatexMathSymbol>& getSymbols() const
+	{
+		return mSymbols;
+	}
+
+private:
+
+	unsigned mOpenTagCount{ 0 };
+
+	std::string mRawExpression;
+	std::unique_ptr<LatexMathExpression> mSuperScriptExpr;
+	std::unique_ptr<LatexMathExpression> mSubScriptExpr;
+	std::unique_ptr<LatexMathExpression> mEnclosedExpr;
+
+	std::vector<LatexMathSymbol> mSymbols;
+};