record array(a,b,c,d,e,f,g) procedure dummy(u,v,x,y,z) suspend u | v return x end procedure main() write("f := open(\"foo.baz\",\"w\") ----> ",image(f := open("foo.baz","w")) | "none") write("write(f,\"hello world\") ----> ",image(write(f,"hello world")) | "none") write("close(f) ----> ",image(close(f)) | "none") write("system(\"rm -f foo.baz\") ----> ",image(system("rm -f foo.baz")) | "none") write("system(\"system()\") ----> ",image(system("system()")) | "none") end