From: Pavel Smerk <smerk@...>
Date: 2006-08-03T04:05:14+09:00
Subject: Re: How to split(//) with respect to bigraphs?

Paul Battley wrote:
> On 02/08/06, Justin Collins <collinsj@seattleu.edu> wrote:
> 
>> irb(main):001:0> "czech".split(/([Cc][Hh])|/)
>> => ["c", "z", "e", "ch"]
>> irb(main):002:0> "check czech".split(/([Cc][Hh])|/)
>> => ["", "ch", "e", "c", "k", " ", "c", "z", "e", "ch"]
>> irb(main):003:0> "cHeck czeCh".split(/([Cc][Hh])|/)
>> => ["", "cH", "e", "c", "k", " ", "c", "z", "e", "Ch"]
> 
> 
> Or use scan:
> 
> str.scan(/(?:ch)|./i)

Yes, the use of scan strikes me in the meantime too. Why (?:)? 
str.scan(/ch|./i) does exactly the same, doesn't it?

Thank you,

P.