From: Eric Christopherson <echristopherson@...>
Date: 2012-04-26T05:28:19+09:00
Subject: Re: matching substrings

On Wed, Apr 25, 2012 at 2:48 PM, Clay Tzoucalis <lists@ruby-forum.com> wrote:
> I need a little help with an assignment. Following is the code I am
> being asked to create, any help with this would be great.
>
> Ask the user to enter two strings, a and b. Then return the number of
> positions where they contain the same length 2 substring. So “xxcaazz”
> and “xxbaaz” yields 3, since the “xx”, “aa”, and “az” substrings appear
> in the same place in both strings.
>
> string_match('xxcaazz', 'xxbaaz') → 3
> string_match('abc', 'abc') → 2
> string_match('abc', 'axc') → 0

We generally don't do homework outright on this forum/list. Perhaps
you could write up some code, see if it works, and if not, post it
here and we can discuss how to improve it.