From: nobu.nokada@...
Date: 2002-12-08T00:59:13+09:00
Subject: Re: regexp: zero-width match for PRECEDING atom

Hi,

At Sun, 8 Dec 2002 00:43:06 +0900,
Emmanuel Touzery wrote:
> 	I'm looking for the pattern which is (?<!pattern) in perl and \@<! in vim  
> for ruby, but it seems not to exist (while some other (?:), (?=) (?!) 
> sequences do exist).

Currently, lookbehind is not implemented.  Oniguruma RE engine
has it and will be used in future.

> 	Any alternatives? Does it actually exist?
> 
> 	What i would like to do: split this string:
> "/home/emmanuel / /home/emmanuel/my\\ dir\\ with\\ spaces"
> 
> so that I get:
> ["/home/emmanuel", "/", "/home/emmanuel/my\\ dir\\ with\\ spaces"]

string.scan(/(?:\\ |[^ ])+/)

-- 
Nobu Nakada