From: Robert Feldt <feldt@...>
Date: 2001-10-24T04:00:28+09:00
Subject: [ruby-talk:23070] Re: splitting a string with nested elements

On Wed, 24 Oct 2001, Joseph McDonald wrote:

> Hi,
> 
Hi,

> Is there a way to do such a thing with a regex, or do I need to resort
> to a scanning technique, keeping track of the nested elements?
> 
Nested comments is the canonical example of what can *NOT* be done with
regexps. But since I now said this I'm sure some smart ruby guru will tell
you it can be done anyway (I'm not fully aware of the difference between
RegularExpressions (the CS theory one) and their Perl and Ruby
implementations). 

BTW, the an upcoming version of Rockit will have an expanded
tokenizing/lexing/scanning formalism that can easily handle this.

Regards,

Robert