From: James Edward Gray II <james@...>
Date: 2005-09-14T23:59:08+09:00
Subject: Re: Quick and dirty word wrapping.

On Sep 14, 2005, at 9:48 AM, Gavin Kistner wrote:

> On Sep 14, 2005, at 8:38 AM, James Edward Gray II wrote:
>
>>> str.scan(/(.{1,30})(?:\s+|$)/)
>>>
>> I'm still puzzling out how that works...
>>
>
> Up to 30 characters, but there has to be whitespace after it (to  
> keep it from splitting in the middle of the word) or be the very  
> end of the string. The greedy regexp will grab all 30 if it can  
> find them with whitespace after, otherwise it will backtrack until  
> it finds the right spot.

I do understand the Regexp, but isn't that a look-ahead assertion at  
the end?  That's not supposed to consume characters, right?  So why  
doesn't the very next match start with the leading whitespace that  
ended the last match?

I know I just haven't got me head all the way around it yet.  I'm  
working on it...  ;)

James Edward Gray II