#ifndef LEXER_H
#define LEXER_H

#include "../libft/includes/libft.h"

typedef enum
{
    TOKEN_PLUS,           // +
    TOKEN_MINUS,          // -
    TOKEN_VARIABLE,       // x, y, etc.
    TOKEN_NUMBER,         // int or double
    TOKEN_POWER,          // ^ or **
    TOKEN_MULTIPLICATION, // *
    TOKEN_DIVISION,       // /
    TOKEN_END             // null (end of input)
} token_type;

typedef struct
{
    token_type type;
    union
    {
        double num_value; // For NUMBER
        char var_value;   // For VARIABLE (single char, e.g., 'x')
    };
} token;

#define MAX_TOKENS 100
int lexerize(const char *input, token tokens[MAX_TOKENS]);

#endif