lexer.h

typedef struct alpha_token {
    unsigned int line;
    unsigned int token_number;
    char* content;
    enum TOKEN_T_ENUM token_type;
    struct alpha_token* next;
    struct alpha_token *lex;

} *alpha_token_t;

#define YY_DECL int alpha_yylex(alpha_token_t token_param)
extern YY_DECL;

alpha_token_t head = NULL;

void print_token(enum TOKEN_T_ENUM tokentype, alpha_token_t token_arg);