Symbol: BIFONT
usr/src/cmd/troff/nroff.d/n10.c
461
if (oxfont == ulfont || oxfont == BIFONT)
usr/src/cmd/troff/nroff.d/n10.c
465
if (xfont == ulfont || xfont == BIFONT)
usr/src/cmd/troff/nroff.d/n10.c
471
if ((xfont == ulfont || xfont == BIFONT) && !(*t.iton & 0377)) {