The Scanner has been refactored and some responsibilities were pulled from it. Confirmed working, the Parser still needs to be touched on however.

token.c

@@ -0,0 +1,51 @@
+#include "token.h"
+
+KeyValuePair TokenTypeMappings[TOKENTYPE_MAPPINGS_COUNT] = {
+    { "(", LParen}, { ")", RParen}, { ",", Comma }, { ".", Dot },
+    { "-", Minus }, { "+", Plus }, { ";", Semicolon }, { "/", Slash}, { "*", Star },
+    { "!", Bang }, { "!=", Bang_Equal }, { "=", Equal }, { "==", Equal_Equal },
+    { ">", Greater }, { ">=", Greater_Equal }, { "<", Less }, { "<=", Less_Equal },
+    { "and", AND }, { "class", CLASS }, { "else", ELSE },
+    { "false", FALSE }, { "for", FOR }, { "fun", FUN },
+    { "if", IF }, { "nil", NIL }, { "or", OR },
+    { "print", PRINT }, { "return", RETURN }, { "super", SUPER },
+    { "this", THIS }, { "true", TRUE }, { "var", VAR }, { "while", WHILE },
+    { "", EndOF }
+};
+
+const char* GetLexemeMapping(TokenType);
+
+Token* CreateToken(const char* lexeme, int line, TokenType type) {
+    Token* token = calloc(1, sizeof(Token));
+    
+    if (!token) {
+        fprintf(stderr, "Failed to calloc token. %s", strerror(errno));
+        return NULL;
+    }
+
+    if (lexeme) token->lexeme = lexeme;
+    else { 
+        const char* mapping_result = GetLexemeMapping(type);
+        
+        if (!mapping_result) {
+            fprintf(stderr, "Failed to get the mapping for %s\n", lexeme);
+            free(token);
+            return NULL;
+        }
+
+        token->lexeme = mapping_result;
+    }
+
+    token->line = line;
+    token->type = type;
+
+    return token;
+}
+
+const char* GetLexemeMapping(TokenType type) {
+    for (int i = 0; i < TOKENTYPE_MAPPINGS_COUNT; i++) {
+        if (TokenTypeMappings[i].type == type) return TokenTypeMappings[i].lexeme;
+    }
+
+    return NULL;
+}