From: Alexander Schofield <pcs3@...>
Date: 2002-02-27T02:24:55+09:00
Subject: Re: Nested paired brackets in regexp

Check RAA, I saw a Ruby version of Lex, or Rockit might be what you
need.

Yasuo Saito wrote:
> 
> Hi.
> 
> Ruby's regular expression is very powerful.
> 
> But, I cannot express paired brackets(<...>), which
> might be nested, in a single regular expression.
> 
> How can I check nested paired brackets by a single/simple
> (extended) regular expression, if possible?
> 
> eg.
>  input            | expected
> ------------------+--------------
> "ab<cd>ef"        | "<cd>"
> "ab<cd>e<fg>"     | "<cd>"
> "ab<cd<e<>fg>h>i" | "<cd<e<>gh>i>"
> "ab<cd<e>f"       | not matched
> 
> Y.Saito

-- 
Alexander Schofield