NULL_NODE        1877 regcomp.c      	  en->target = NULL_NODE;
NULL_NODE        2722 regcomp.c        Node* n = NULL_NODE;
NULL_NODE        3258 regcomp.c        while ((np = NCDR(np)) != NULL_NODE) {
NULL_NODE        3269 regcomp.c          } while ((np = NCDR(np)) != NULL_NODE);
NULL_NODE        3338 regcomp.c      	np = onig_node_new_list(NULL_NODE, NULL_NODE);
NULL_NODE        3341 regcomp.c      	NCDR(node) = onig_node_new_list(np, NULL_NODE);
NULL_NODE        3459 regcomp.c        *rnode = var_anode = NULL_NODE;
NULL_NODE        3470 regcomp.c          *rnode = var_anode = onig_node_new_alt(NULL_NODE, NULL_NODE);
NULL_NODE        3477 regcomp.c          anode = onig_node_new_alt(NULL_NODE, NULL_NODE);
NULL_NODE        3482 regcomp.c          *rnode = anode = onig_node_new_alt(NULL_NODE, NULL_NODE);
NULL_NODE        3506 regcomp.c          an = onig_node_new_alt(NULL_NODE, NULL_NODE);
NULL_NODE        3522 regcomp.c              xnode = onig_node_list_add(NULL_NODE, snode);
NULL_NODE        3581 regcomp.c        top_root = root = prev_node = snode = NULL_NODE;
NULL_NODE        3598 regcomp.c      	  top_root = root = onig_node_list_add(NULL_NODE, prev_node);
NULL_NODE        3629 regcomp.c      	top_root = root = onig_node_list_add(NULL_NODE, prev_node);
NULL_NODE        3660 regcomp.c            snode = NULL_NODE;
NULL_NODE        3679 regcomp.c            top_root = root = onig_node_list_add(NULL_NODE, prev_node);
NULL_NODE        3732 regcomp.c            Node* prev = NULL_NODE;
NULL_NODE        3880 regcomp.c            Node* prev = NULL_NODE;
NULL_NODE         971 regparse.c         env->mem_nodes_static[i] = NULL_NODE;
NULL_NODE        1006 regparse.c     	p[i] = NULL_NODE;
NULL_NODE        1312 regparse.c       if (IS_NULL(n)) return NULL_NODE;
NULL_NODE        1410 regparse.c       NCALL(node)->target    = NULL_NODE;
NULL_NODE        1431 regparse.c       NQTFR(node)->head_exact        = NULL_NODE;
NULL_NODE        1432 regparse.c       NQTFR(node)->next_head_exact   = NULL_NODE;
NULL_NODE        1627 regparse.c       Node* n = NULL_NODE;
NULL_NODE        2360 regparse.c       c->target = NULL_NODE;
NULL_NODE        4608 regparse.c       *np = *asc_np = NULL_NODE;
NULL_NODE        4638 regparse.c         asc_node = NULL_NODE;
NULL_NODE        5373 regparse.c     	work2 = onig_node_new_alt(work1, NULL_NODE);
NULL_NODE        5662 regparse.c         Node *snode = NULL_NODE;
NULL_NODE        5688 regparse.c           *(iarg->ptail) = onig_node_new_alt(snode, NULL_NODE);
NULL_NODE        5706 regparse.c       iarg.alt_root    = NULL_NODE;
NULL_NODE        5765 regparse.c       target1 = onig_node_new_alt(right, NULL_NODE);
NULL_NODE        5828 regparse.c           list2 = node_new_list(qn, NULL_NODE);