memcpy (w->lf, ei.lf, sizeof w->lf);
for (ofs = 0; ofs + ei.unit <= sizeof w->spaces; ofs += ei.unit)
memcpy (&w->spaces[ofs], ei.space, ei.unit);
memcpy (w->lf, ei.lf, sizeof w->lf);
for (ofs = 0; ofs + ei.unit <= sizeof w->spaces; ofs += ei.unit)
memcpy (&w->spaces[ofs], ei.space, ei.unit);