From: celldee <celldee@...>
Date: 2007-04-15T09:35:03+09:00
Subject: Re: Counting pairs of newline characters in a string

Thanks Chad, works a treat.

On Apr 15, 1:00 am, "Chad Fowler" <c...@chadfowler.com> wrote:
> On 4/14/07, celldee <cell...@gmail.com> wrote:
>
>
>
> > I have a string that is text read in from a file. Within it there are
> > pairs of newline characters and I want to count how many there are.
> > Here is an irb example:-
>
> > irb(main):001:0> str = "bob
> > irb(main):002:0"
> > irb(main):003:0" and Jane"
> > => "bob\n\nand Jane"
> > irb(main):004:0> str.count("\n\n")
> > => 2
>
> > Each newline character is counted separately so I get the number 2
> > returned instead of the number 1 which is what I require.
> > Is there a way for me to count pairs of newline characters with a
> > simple function?
>
> Hi.  One way is: str.scan(/\n\n/).size
>
> Chad