push_hold_buf     256 nkf.c          static  int     push_hold_buf PROTO((int c2));
push_hold_buf    1610 nkf.c              push_hold_buf(c2);
push_hold_buf    1611 nkf.c              push_hold_buf(c1);
push_hold_buf    1620 nkf.c                  if (push_hold_buf(c1) == EOF || estab_f){