David A. Black wrote:
>  Hi --
>  
>  On Fri, 9 May 2008, 7stud -- wrote:
>  
> >>>> false
> >>      else
> >
> >    puts
> > passes your test, it is not true that all the characters in the string
> > "abc"  appear in in the string "aaa".
>  
>  Do it the other way around (and don't forget the \z):
>  

Whoops.


>     if /\A[#{str}]*\z/ =~ chars
>  
>  It's really the characters in str that you're testing, to make sure
>  that none of them fail to match the characters in chars. If the
>  variable names seem backwards, you can change them. It's the logic
>  that's important, and it works fine.
>  

Nice.
-- 
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