#ifndef ANIMTOOL_LEX_H_
#define ANIMTOOL_LEX_H_

#include "util/container.h"
#include "util/str.h"
#include "source.h"
#include "op.h"

enum token_type
{
    TOKEN_NUMBER,
    TOKEN_STRING,
    TOKEN_VAR,
    TOKEN_IDENT,
    TOKEN_OP,
};

struct token
{
    struct range loc;
    enum token_type type;
    union
    {
        double number;
        str string;
        str var;
        str ident;
        struct
        {
            enum op_type type;
            struct range name_loc;
            array(struct token) children;
        } op;
    };
};

bool lex_token(struct source *source, struct token *tok);
void free_token(struct token *tok);

#endif