hp2ps -vs- hp2pretty benchmarks

$ time ./Main <in.hp >out.svg

real	0m38.786s
user	0m38.120s
sys	0m0.360s

real	0m39.423s
user	0m38.800s
sys	0m0.250s

real	0m38.674s
user	0m38.110s
sys	0m0.400s


$ time hp2ps <in.hp >out.ps

real	0m38.474s
user	0m38.350s
sys	0m0.090s

real	0m38.765s
user	0m38.200s
sys	0m0.140s

real	0m38.017s
user	0m37.860s
sys	0m0.150s


$ wc in.hp
 1484749  2969502 37406420 in.hp