h s/.*e// :1 s/[1-9]/&+/g y/123456789/012345678/ s/+0/9+/ t1 x;G : s/e.*\n0*\|\.\B\|-$// s/\.\(.\)\(\w*\)+/\1.\2/ s/\(.\)\.\(.*-\)0*+/0.\1\2/ t y/+/0/
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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