What's an elegant definition of a Haskell function that takes two strings
and returns Nothing in case the first string isn't a substring of the
first, or Just i, where i is the index number of the position within the
first string where the second string begins?
my quick take, with Maybe and
R J rj248...@hotmail.com writes:
What's an elegant definition of a Haskell function that takes
two strings and returns Nothing in case the first string
isn't a substring of the first, or Just i, where i is the
index number of the position within the first string where the
second string
