From: Simon Strandgaard <neoneye@...>
Date: 2004-11-19T05:34:16+09:00
Subject: Re: Tales of the Regex (Re: About Regular Expressions)

On Thursday 18 November 2004 21:19, Mauricio Fern�ndez wrote:
[snip english (sorry)]
> Also Simon Strandgaard's re might interest you; you can do things like
>
> >> puts /ab|cd(?=x)|xxx/.tree
> +-Alternation
>   +-Sequence
>   | +-Inside set="a"
>   | +-Inside set="b"
>   +-Sequence
>   | +-Inside set="c"
>   | +-Inside set="d"
>   | +-Lookahead positive
>   |   +-Inside set="x"
>   +-Sequence
>     +-Inside set="x"
>     +-Inside set="x"
>     +-Inside set="x"
> => nil

Thanks Mauricio for mentioning this.

It can be obtained through raa (or via rpa)

http://raa.ruby-lang.org/project/regexp/



btw: does any one use this package?
(got ideas for improvement?)

--
Simon Strandgaard