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digitalmars.D - regex-dna speed

I was looking through the speed comparison results and noticed that compilers
like C C++ and D all kinda fail the regex-dna bench, while fortan perl and
python have no problems with it. 

http://shootout.alioth.debian.org/benchmark.php?test=regexdna&lang=all

Why this enormous difference?
(sorry if this is a really n00b question)
Feb 09 2006