🚀 go-pugleaf

even installed "GhostView" to see the result. but no luck in it. since my programs looks like below,output was empty page.

%PS mark 0.5 setlinewidth currentpoint
%PS 22 1 50 {dup 0 0 t! (B) eq {20 99 t! show crlf}{exit}ifelse }for
%PS dup 22 ne{3 1 roll gsave
%PS currentpoint -6 8 translate 4 -2 roll moveto currentpoint exch pop 546 exch lineto
%PS dup 546 exch lineto lineto closepath stroke grestore
%PS 22 sub 12 mul}{pop pop pop 0}ifelse
%PS currentpoint
%PS 26 1 49 {dup 0 0 t! (D) eq {20 99 t! show crlf}{exit}ifelse }for
%PS dup 26 ne{3 1 roll gsave
%PS currentpoint -6 8 translate 4 -2 roll moveto currentpoint exch pop 546 exch lineto
%PS dup 546 exch lineto lineto closepath stroke grestore
%PS 26 sub 12 mul}{pop pop pop 0}ifelse
%PS add neg 0 exch translate
%PS cleartomark