From: Daniel DeLorme <dan-ml@...42.com>
Date: 2007-08-12T10:52:57+09:00
Subject: Re: first and last char

Stefan Rusterholz wrote:
> Ew, that's awfully complex. You create n new objects from which you 
> throw n-1 away again...
> Think of the memory! ;-)
> def first; self[0,1]; end; def last; self[-1,1]; end

wrong, that's the first and last *bytes*, not characters.

def first; self[/\A./m]; end
def last; self[/.\z/m]; end

 >> $KCODE='u'
=> "u"
 >> "日本語".first
=> "日"
 >> "日本語".last
=> "語"

Daniel