[Haskell-cafe] Dropping trailing nulls from a list of list

[Henning Thielemann]

On Wed, 8 Mar 2006 Jeff.Harper at handheld.com wrote:

> Today, I reviewed a function I wrote a few months ago.  The function,
> dropTrailNulls, takes a list of lists and drops trailing null lists.  For
> instance:
>
> *Main> dropTrailNulls [[1],[2,3],[],[]]
> [[1],[2,3]]

http://www.haskell.org/pipermail/libraries/2005-August/004217.html