1 files changed, 138 insertions, 0 deletions
diff --git a/core/variant_parser.h b/core/variant_parser.h
new file mode 100644
index 0000000000..16d576a6b4
--- /dev/null
+++ b/core/variant_parser.h
@@ -0,0 +1,138 @@
+#ifndef VARIANT_PARSER_H
+#define VARIANT_PARSER_H
+
+#include "variant.h"
+#include "os/file_access.h"
+#include "resource.h"
+
+class VariantParser {
+public:
+
+	struct Stream {
+
+		virtual CharType get_char()=0;
+		virtual bool is_utf8() const=0;
+		virtual bool is_eof() const=0;
+
+		CharType saved;
+
+		Stream() { saved=0; }
+		virtual ~Stream() {}
+	};
+
+	struct StreamFile : public Stream {
+
+		FileAccess *f;
+
+		virtual CharType get_char();
+		virtual bool is_utf8() const;
+		virtual bool is_eof() const;
+
+		StreamFile() { f=NULL; }
+
+	};
+
+	struct StreamString : public Stream {
+
+		String s;
+		int pos;
+
+		virtual CharType get_char();
+		virtual bool is_utf8() const;
+		virtual bool is_eof() const;
+
+		StreamString() { pos=0; }
+
+	};
+
+	typedef Error (*ParseResourceFunc)(void* p_self, Stream* p_stream,Ref<Resource>& r_res,int &line,String &r_err_str);
+
+	struct ResourceParser {
+
+		void *userdata;
+		ParseResourceFunc func;
+		ParseResourceFunc ext_func;
+		ParseResourceFunc sub_func;
+
+	};
+
+	enum TokenType {
+		TK_CURLY_BRACKET_OPEN,
+		TK_CURLY_BRACKET_CLOSE,
+		TK_BRACKET_OPEN,
+		TK_BRACKET_CLOSE,
+		TK_PARENTHESIS_OPEN,
+		TK_PARENTHESIS_CLOSE,
+		TK_IDENTIFIER,
+		TK_STRING,
+		TK_NUMBER,
+		TK_COLOR,
+		TK_COLON,
+		TK_COMMA,
+		TK_EQUAL,
+		TK_EOF,
+		TK_ERROR,
+		TK_MAX
+	};
+
+	enum Expecting {
+
+		EXPECT_OBJECT,
+		EXPECT_OBJECT_KEY,
+		EXPECT_COLON,
+		EXPECT_OBJECT_VALUE,
+	};
+
+	struct Token {
+
+		TokenType type;
+		Variant value;
+	};
+
+	struct Tag {
+
+		String name;
+		Map<String,Variant> fields;
+	};
+
+private:
+	static const char * tk_name[TK_MAX];
+
+	template<class T>
+	static Error _parse_construct(Stream *p_stream, Vector<T>& r_construct, int &line, String &r_err_str);
+	static Error _parse_enginecfg(Stream *p_stream, Vector<String>& strings, int &line, String &r_err_str);
+	static Error _parse_dictionary(Dictionary &object, Stream *p_stream, int &line, String &r_err_str,ResourceParser *p_res_parser=NULL);
+	static Error _parse_array(Array &array, Stream *p_stream, int &line, String &r_err_str,ResourceParser *p_res_parser=NULL);
+	static Error _parse_tag(Token& token,Stream *p_stream, int &line, String &r_err_str,Tag& r_tag,ResourceParser *p_res_parser=NULL);
+
+public:
+
+	static Error parse_tag(Stream *p_stream, int &line, String &r_err_str,Tag& r_tag,ResourceParser *p_res_parser=NULL);
+	static Error parse_tag_assign_eof(Stream *p_stream, int &line, String &r_err_str, Tag& r_tag, String &r_assign, Variant &r_value,ResourceParser *p_res_parser=NULL);
+
+	static Error parse_value(Token& token,Variant &value, Stream *p_stream, int &line, String &r_err_str,ResourceParser *p_res_parser=NULL);
+	static Error get_token(Stream *p_stream,Token& r_token,int &line,String &r_err_str);
+	static Error parse(Stream *p_stream, Variant &r_ret, String &r_err_str, int &r_err_line,ResourceParser *p_res_parser=NULL);
+};
+
+
+
+
+class VariantWriter {
+public:
+
+	typedef Error (*StoreStringFunc)(void *ud,const String& p_string);
+	typedef String (*EncodeResourceFunc)(void *ud,const RES& p_resource);
+
+	static Error write(const Variant& p_variant, StoreStringFunc p_store_string_func, void *p_store_string_ud,EncodeResourceFunc p_encode_res_func,void* p_encode_res_ud);
+	static Error write_to_string(const Variant& p_variant, String& r_string, EncodeResourceFunc p_encode_res_func=NULL,void* p_encode_res_ud=NULL);
+
+
+};
+
+
+
+
+
+
+#endif // VARIANT_PARSER_H