[Haskell-cafe] Re: Need some help with an infinite list

Tom Pledger tom at pledger.gen.nz
Tue Jun 16 21:09:52 EDT 2009

GüŸnther Schmidt <gue.schmidt <at> web.de> writes:

> Hi guys,
> I'd like to generate an infinite list, like
> ["a", "b", "c" .. "z", "aa", "ab", "ac" .. "az", "ba", "bb", "bc" .. 
> "bz", "ca" ...]

If you're happy to have a "" before the "a", you can do this as a fairly cute
one-liner in a similar style to this list of Fibonacci numbers.

    fib = 0:1:[m + n | (m, n) <- zip fib (tail fib)]


More information about the Haskell-Cafe mailing list