cclenter
np = op2(CCL, NIL, (Node*) cclenter((const char *) rlxstr));
np = op2(NCCL, NIL, (Node *) cclenter((const char *) rlxstr));
return unary(op2(CCL, NIL, (Node *) cclenter("")));
return (concat(op2(CAT, op2(CCL, NIL, (Node *) cclenter("")),
extern int *cclenter(const char *);