#ifndef LEXER_H
#define LEXER_H

#include <sys/types.h>

/* @return: char*, the next token
 *
 */
char *get_token(void);

/*
 * @warning: NOT IMPLEMENTED.
 *
 * @note: maybe usefull for subshells.
 */

char *get_token_str(void);

/*
 * @brief: return a newly allocated token.
 *         This token contains [size] chars, starting from [begin].
 *
 * @return: NULL on error, null-terminated char* otherwise.
 *
 */
char *new_token(char *begin, ssize_t size);

/*
 * @brief: checks if the stream used for the last token creation is empty.
 *         If it is, it calls stream_read() from IO_backend,
 *         and sets [remaing_chars].
 *         If not, it starts from the end of the last token.
 *
 * @return: char* stream from which we tokenise.
 */
char *stream_init(void);

#endif /* ! LEXER_H */