#define IN_LINE_BUFSIZE 1024
#define TOK_BUFSIZE 128
#define TOK_DELIMITER " ,\t"

char *get_line(void) {
    int bufsize = IN_LINE_BUFSIZE, pos = 0, c;
    char *buffer = malloc(sizeof(char) * bufsize);

    if (!buffer) {
        fprintf(stderr, "FATAL: failed to allocate memory");
        exit(EXIT_FAILURE);
    }

    while (1) {
        c = getchar();

        if (c == EOF || c == '\n') {
            buffer[pos] = '\0';
            return buffer;
        }
        else {
            buffer[pos] = c;
        }
        pos++;

        if (pos >= bufsize) {
            bufsize += IN_LINE_BUFSIZE;
            buffer = realloc(buffer, bufsize);
            if (!buffer) {
                fprintf(stderr, "FATAL: failed to allocate memory");
                exit(EXIT_FAILURE);
            }
        }
    }
}

char **parse_line(char *line) {
    int bufsize = TOK_BUFSIZE, pos = 0;
    char **tokens = malloc(bufsize * sizeof(char*));
    char *token;

    if (!tokens) {
        fprintf(stderr, "FATAL: failed to allocate memory");
        exit(EXIT_FAILURE);
    }

    token = strtok(line, TOK_DELIMITER);
    printf("Parse: token: %s\n", token);
    while (token != NULL) {
        tokens[pos] = token;
        pos++;

        if (pos >= bufsize) {
            bufsize += TOK_BUFSIZE;
            tokens = realloc(tokens, bufsize * sizeof(char*));
            if (!tokens) {
                fprintf(stderr, "FATAL: failed to allocate memory");
                exit(EXIT_FAILURE);
            }
        }

        token = strtok(NULL, TOK_DELIMITER);
    }

    tokens[pos] = NULL;
    return tokens;
}