.ds Bf b		\" default format; use i for icons and faces.ds Bn /tmp/btroff\n($$	\" temporary file, reused on each macro call.ds Bp /usr/lib/btroff	\" bitmap filter.de BM.if \\n(.$=1 .ds Bf \\$1.if \\n(.$=2 \{.	\" copy request, perhaps diverted.ie '\\n(.z'' .Bm \\$1 \\$2.el \!.BM \\$1 \\$2\}.if \\n(.$=4 \{.	\" size request, numerator only.nr Bz \\$2.sy \\*(Bp -s -\\*(Bf -d\\n(Bz \\$1 | awk '{\	print ".nr \\$3 " $1; \	print ".nr \\$4 " $2; \	exit }' >\\*(Bn.so \\*(Bn.sy /bin/rm -f \\*(Bn \}.if \\n(.$=5 \{.	\" size request, numerator and denominator.nr Bz \\$2.sy \\*(Bp -s -\\*(Bf -d\\n(Bz \\$1 | awk '{\	print ".nr \\$4 " $1 "/\\$3"; \	print ".nr \\$5 " $2 "/\\$3"; \	exit }' >\\*(Bn.so \\*(Bn.sy /bin/rm -f \\*(Bn \}...de Bm			\" copy request, for real.if \\n(.P>0 \{.	\" maybe.fl.ie '\\$2'0' \{.	\" ask driver to read the bits.br\\X'Bitmap \\$1'.sp -1 \}.el \{.			\" use the Bitmap font.sy \\*(Bp -\\*(Bf -d\\$2 \\$1 >\\*(Bn.fp 9 BM Bitmap.ft 9.ps \\$2.cf \\*(Bn	\" next line is for pm to consume\!n0 1.ft.ps.sy /bin/rm -f \\*(Bn \}.fl \}..