Initial commit

Parser/Lexer.h

@@ -0,0 +1,66 @@
+#pragma once
+#include <list>
+#include <string_view>
+#include <ranges>
+#include <sys/types.h>
+#include <string>
+
+namespace Parser
+{
+    class Lexer
+    {
+    public:
+        struct Token
+        {
+            enum TokenType
+            {
+                INT,
+                PLUS,
+                MINUS,
+                MULTIPLY,
+                DIVIDE,
+                ASSIGNMENT,
+                BRACKET_LEFT,
+                BRACKET_RIGHT,
+                IDENTIFIER
+            };
+
+            TokenType type;
+            uint line;
+            std::string_view occurence;
+
+            Token(TokenType type, uint line, std::string_view&& str)
+            {
+                this->type = type;
+                this->line = line;
+                occurence = str;
+            }
+
+            std::string toString(){
+                return std::to_string(type) + " " + std::string(occurence);
+            }
+        };
+
+        Lexer() = default;
+        std::list<Lexer::Token> tokenize(const std::string_view &text);
+
+    private:
+        uint current{};
+        uint start{};
+        uint line{};
+
+        std::string_view text;
+        std::list<Token> tokens;
+
+        
+
+    private:
+        void identifier();
+        bool isAlpha(const char& c);
+        bool isDigit(const char& c);
+        void number();
+        void advance();
+        char peek();
+        void token(const Token::TokenType type);
+    };
+}