Initial commit of basis persistence

JSON parser lifted almost verbatim for libjsonpp running into some
custom code for populating ilt objects. Pretty minimal per object code
requirements.

1 files changed, 43 insertions, 0 deletions

diff --git a/lib/jsonParse.h b/lib/jsonParse.h
new file mode 100644
index 0000000..6b1249f
--- /dev/null
+++ b/lib/jsonParse.h
@@ -0,0 +1,43 @@
+#ifndef JSONFLEXLEXER_H
+#define JSONFLEXLEXER_H
+
+#ifndef FLEX_SCANNER
+#	define yyFlexLexer jsonBaseFlexLexer
+#	include <FlexLexer.h>
+#endif
+#include <cassert>
+#include <filesystem>
+#include <fstream>
+#include <memory>
+#include <stdexcept>
+#include <string>
+
+namespace json {
+	class jsonParser : public yyFlexLexer {
+	public:
+		using yyFlexLexer::yyFlexLexer;
+		int yylex() override;
+
+		static void appendEscape(const char *, std::string &);
+		static void appendEscape(unsigned long, std::string &);
+
+	protected:
+		virtual void BeginObject() = 0;
+		virtual void BeginArray() = 0;
+
+		virtual void PushBoolean(bool) = 0;
+		virtual void PushNumber(float) = 0;
+		virtual void PushNull() = 0;
+		virtual void PushText(std::string &&) = 0;
+		virtual void PushKey(std::string &&) = 0;
+
+		virtual void EndArray() = 0;
+		virtual void EndObject() = 0;
+
+		void LexerError(const char * msg) override;
+
+		std::string buf;
+	};
+}
+
+#endif