Add PDF writer.

src/web/markdown/MarkdownParser.h

@@ -4,13 +4,27 @@
 
 class MarkdownParser
 {
-	HtmlDocumentPtr mHtmlDocument;
+    enum class DocumentState
+    {
+        None
+    };
+
+    enum class LineState
+    {
+        None
+    };
+
+
+    DocumentState mDocumentState {DocumentState::None};
+    HtmlDocumentPtr mHtmlDocument;
 
 public:
 
-	MarkdownParser();
+    MarkdownParser();
 
-	void ProcessLine(const std::string);
+    HtmlDocumentPtr GetHtml();
 
-	HtmlDocumentPtr GetHtml();
+    void ProcessLine(const std::string& line);
+
+    void Run(const std::string& content);
 };