insert_node      3093 ext/mbstring/oniguruma/regcomp.c   Node *head, *np, *insert_node;
insert_node      3105 ext/mbstring/oniguruma/regcomp.c     insert_node = onig_node_new_anchor(anc_type);
insert_node      3106 ext/mbstring/oniguruma/regcomp.c     CHECK_NULL_RETURN_MEMERR(insert_node);
insert_node      3107 ext/mbstring/oniguruma/regcomp.c     NANCHOR(insert_node)->target = NCAR(np);
insert_node      3108 ext/mbstring/oniguruma/regcomp.c     NCAR(np) = insert_node;