#ifndef LEXER_H
#define LEXER_H

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

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

typedef struct
{
    token_type type;
    union
    {
        char value_char;
        int value_int;
        double value_double;
    };
} token;

void lexerize(const char *input, token *tokens);

#endif