Lisp: Add source

src/reader.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2023 Riyyi
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#include <cstddef> // size_t
+#include <vector>
+
+#include "ast.h"
+#include "lexer.h"
+
+namespace blaze {
+
+// Parsing -> creates AST
+class Reader {
+public:
+	Reader(std::vector<Token>&& tokens) noexcept;
+	virtual ~Reader();
+
+	void read();
+
+	void dump();
+
+	ASTNode* node() { return m_node; }
+
+private:
+	bool isEOF() const;
+	Token peek() const;
+	Token consume();
+	void ignore();
+
+	ASTNode* readImpl();
+	ASTNode* readList();
+	ASTNode* readString();
+	ASTNode* readValue();
+
+	void dumpImpl(ASTNode* node);
+
+	size_t m_index { 0 };
+	size_t m_indentation { 0 };
+	std::vector<Token> m_tokens;
+
+	ASTNode* m_node { nullptr };
+};
+
+} // namespace blaze