Initial shaderlang commit

include/Nazara/Shader/ShaderLangLexer.hpp

@@ -0,0 +1,56 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Renderer module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_SHADER_LANGLEXER_HPP
+#define NAZARA_SHADER_LANGLEXER_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Shader/Config.hpp>
+#include <stdexcept>
+#include <string>
+#include <variant>
+#include <vector>
+
+namespace Nz::ShaderLang
+{
+	enum class TokenType
+	{
+#define NAZARA_SHADERLANG_TOKEN(X) X,
+
+#include <Nazara/Shader/ShaderLangTokenList.hpp>
+	};
+
+	struct Token
+	{
+		unsigned int column;
+		unsigned int line;
+		TokenType type;
+		std::variant<double, long long, std::string> data;
+	};
+
+	class BadNumber : public std::exception
+	{
+		using exception::exception;
+	};
+
+	class NumberOutOfRange : public std::exception
+	{
+		using exception::exception;
+	};
+
+	class UnrecognizedToken : public std::exception
+	{
+		using exception::exception;
+	};
+
+	NAZARA_SHADER_API std::vector<Token> Tokenize(const std::string_view& str);
+	NAZARA_SHADER_API const char* ToString(TokenType tokenType);
+	NAZARA_SHADER_API std::string ToString(const std::vector<Token>& tokens, bool pretty = true);
+}
+
+#include <Nazara/Shader/ShaderLangLexer.inl>
+
+#endif

include/Nazara/Shader/ShaderLangLexer.inl

@@ -0,0 +1,12 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Shader generator"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Shader/ShaderLangLexer.hpp>
+#include <Nazara/Shader/Debug.hpp>
+
+namespace Nz
+{
+}
+
+#include <Nazara/Shader/DebugOff.hpp>

include/Nazara/Shader/ShaderLangParser.hpp

@@ -0,0 +1,58 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Renderer module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_SHADER_LANGPARSER_HPP
+#define NAZARA_SHADER_LANGPARSER_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Shader/Config.hpp>
+#include <Nazara/Shader/ShaderLangLexer.hpp>
+
+namespace Nz::ShaderLang
+{
+	class ExpectedToken : public std::exception
+	{
+		public:
+			using exception::exception;
+	};
+
+	class UnexpectedToken : public std::exception
+	{
+		public:
+			using exception::exception;
+	};
+
+	class NAZARA_SHADER_API Parser
+	{
+		public:
+			inline Parser();
+			~Parser() = default;
+
+			void Parse(const std::vector<Token>& tokens);
+
+		private:
+			const Token& Advance();
+			void Expect(const Token& token, TokenType type);
+			void ExpectNext(TokenType type);
+			void ParseFunctionBody();
+			void ParseFunctionDeclaration();
+			void ParseFunctionParameter();
+			const Token& PeekNext();
+
+			struct Context
+			{
+				std::size_t tokenCount;
+				std::size_t tokenIndex = 0;
+				const Token* tokens;
+			};
+
+			Context* m_context;
+	};
+}
+
+#include <Nazara/Shader/ShaderLangParser.inl>
+
+#endif

include/Nazara/Shader/ShaderLangParser.inl

@@ -0,0 +1,16 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Shader generator"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Shader/ShaderLangParser.hpp>
+#include <Nazara/Shader/Debug.hpp>
+
+namespace Nz::ShaderLang
+{
+	inline Parser::Parser() :
+	m_context(nullptr)
+	{
+	}
+}
+
+#include <Nazara/Shader/DebugOff.hpp>

include/Nazara/Shader/ShaderLangTokenList.hpp

@@ -0,0 +1,36 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Renderer module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#if !defined(NAZARA_SHADERLANG_TOKEN)
+#error You must define NAZARA_SHADERLANG_TOKEN before including this file
+#endif
+
+#ifndef NAZARA_SHADERLANG_TOKENT_LAST
+#define NAZARA_SHADERLANG_TOKEN_LAST(X) NAZARA_SHADERLANG_TOKEN(X)
+#endif
+
+NAZARA_SHADERLANG_TOKEN(Add)
+NAZARA_SHADERLANG_TOKEN(BoolFalse)
+NAZARA_SHADERLANG_TOKEN(BoolTrue)
+NAZARA_SHADERLANG_TOKEN(ClosingParenthesis)
+NAZARA_SHADERLANG_TOKEN(ClosingCurlyBracket)
+NAZARA_SHADERLANG_TOKEN(Colon)
+NAZARA_SHADERLANG_TOKEN(Comma)
+NAZARA_SHADERLANG_TOKEN(Divide)
+NAZARA_SHADERLANG_TOKEN(Dot)
+NAZARA_SHADERLANG_TOKEN(FloatingPointValue)
+NAZARA_SHADERLANG_TOKEN(EndOfStream)
+NAZARA_SHADERLANG_TOKEN(FunctionDeclaration)
+NAZARA_SHADERLANG_TOKEN(FunctionReturn)
+NAZARA_SHADERLANG_TOKEN(IntegerValue)
+NAZARA_SHADERLANG_TOKEN(Identifier)
+NAZARA_SHADERLANG_TOKEN(Multiply)
+NAZARA_SHADERLANG_TOKEN(OpenCurlyBracket)
+NAZARA_SHADERLANG_TOKEN(OpenParenthesis)
+NAZARA_SHADERLANG_TOKEN(Semicolon)
+NAZARA_SHADERLANG_TOKEN(Return)
+NAZARA_SHADERLANG_TOKEN(Subtract)
+
+#undef NAZARA_SHADERLANG_TOKEN
+#undef NAZARA_SHADERLANG_TOKEN_LAST