From: Rob Biedenharn <Rob@...>
Date: 2009-02-11T05:46:36+09:00
Subject: Re: String#split "feature"

On Feb 10, 2009, at 3:38 PM, 7stud -- wrote:

> Gary Yngve wrote:
>>
>> The 1.8 docs are silent on this, but the 1.9 docs at least say
>> "If pattern contains groups, the respective matches will be  
>> returned in
>> the
>> array as well. "
>>
>
> pickaxe2 p.619:
> =====
> split
> ...
> ...
> If pattern includes groups, these groups will be included in the
> returned values.
> ...
> =====

Interestingly, this feature is described in String#scan, but the ri  
docs for my Apple-provided ruby do not have the sentence for  
String#split.

$ ruby -v
ruby 1.8.6 (2008-03-03 patchlevel 114) [universal-darwin9.0]

-Rob

>> This "feature" surprised the heck out of me..  Anyone know if this
>> functionality is intentional (from the enduser standpoint), or  
>> rather a
>> byproduct of implementation details?
>>
>
> It can be a really handy feature.  python's regex split() function  
> works
> the same way.
>
>
>> Anyhoo, if anyone else gets weird behavior for string split including
>> the
>> pattern, or with groups in the pattern, maybe you'll remember this or
>> maybe
>> google will tell you about this.
>>
>> Thanks,
>> -Gary
>

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com