void 
c_open(char *file) {
        file += 2;
        FILE *f = fopen(file, "r");                  
        if (f == NULL) { 
		puts("couldnt open file.");
                return;
        }        
        b_truncate(buffer);
        Row *row = buffer; 
        row->n = NULL;  
        while (1) {
                size_t red = fread(&row->text, 1, ROW_SIZE, f);
                if (red < ROW_SIZE) {
                        break; 
                } else {  
                        Row *new_row = calloc(1, sizeof(Row));
                        new_row->p = row;
                        row->n = new_row;
                        row = new_row;
                }
        }
}