From: Ron Jeffries <ronjeffries@...>
Date: 2002-02-07T20:03:33+09:00
Subject: Re: shuffle (all possible sequences)

On Thu, 07 Feb 2002 09:45:03 GMT, Tobias Reif <tobiasreif@pinkjuice.com>
wrote:

>I'm sorry; it would be way better to have a boolean method, like:
>"abc".consists_of?("abc") # -> true
>"acb".consists_of?("abc") # -> true
>"bac".consists_of?("abc") # -> true
>"bca".consists_of?("abc") # -> true
>
>And then, how can I say
>
>word_list = ['foo', 'bca']
>word_list.include? word_consisting_of('abc')
># => true

There might be some really cool way that isn't coming to mind this
early. Here are some possibly useful truths:

1. 'abc'.to_a.sort equals 'cba'.to_a.sort

2. ['foo' 'abc'].sort equals ['abc' 'foo'].sort

3. ['foo' 'abc'].sort doesn't equal ['cba' 'oof'].sort

4. 'abc'.include? ?b   is true

5. 'abc'.include? 'b' is true

6. 'abc'.to_a.to_s == 'abc'



Ronald E Jeffries
http://www.XProgramming.com
http://www.objectmentor.com
I'm giving the best advice I have. You get to decide whether it's true for you.