fputs ("\n", fp);
fputs ("\012", fp);
writeattr_proc (node, data)    Node *node;    void *data;{    FILE *fp = (FILE *)data;    fputs ("F", fp);    fputs (node->key, fp);    fputs ("\t", fp);    fputs (node->data, fp);    fputs ("\n", fp);    return 0;}