From 15d7196bf3a3244f078f63645783c4c3f2534d92 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Tue, 21 Feb 2023 00:57:37 +0000
Subject: Implement XML deserializer with SAXParse

---
 lib/saxParse-persistence.h | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 lib/saxParse-persistence.h

(limited to 'lib/saxParse-persistence.h')

diff --git a/lib/saxParse-persistence.h b/lib/saxParse-persistence.h
new file mode 100644
index 0000000..91daecc
--- /dev/null
+++ b/lib/saxParse-persistence.h
@@ -0,0 +1,43 @@
+#pragma once
+
+#include "persistence.h"
+#include "saxParse.h"
+#include <cstdio>
+#include <mxml.h>
+
+namespace Persistence {
+	class SAXParsePersistence : public SAXParse {
+	private:
+		template<typename T> struct Root : public Persistable {
+			T t {};
+			bool
+			persist(PersistenceStore & store)
+			{
+				return STORE_TYPE && STORE_NAME_MEMBER("ilt", t);
+			}
+		};
+
+		void loadStateInternal(FILE * in);
+
+	public:
+		template<typename T>
+		auto
+		loadState(FILE * in)
+		{
+			std::unique_ptr<Root<T>> root;
+			stk.push(std::make_unique<SelectionT<decltype(root)>>(std::ref(root)));
+			loadStateInternal(in);
+			return std::move(root->t);
+		}
+
+	protected:
+		void elementOpen(mxml_node_t * n) override;
+		void elementClose(mxml_node_t *) override;
+		void data(mxml_node_t *) override;
+		void directive(mxml_node_t *) override;
+		void cdata(mxml_node_t *) override;
+
+	private:
+		Stack stk;
+	};
+}
-- 
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