While extending my own regexp-engine with a split method,
I discovered something odd about Ruby's split.

irb(main):001:0> 'ab1ab'.split(/\D+/)
=> ["", "1"]

Its asymmetric, it has a special case for eliminating
the last empty string.. but apparently not the first empty string.

I would have expected above to be symmetric, and output:
=> ["1"]

-- 
Simon Strandgaard