From: Ammar Ali <ammarabuali@...>
Date: 2012-02-17T04:01:06+09:00
Subject: Re: Any parser *for* regular expressions?

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On Thu, Feb 16, 2012 at 7:53 PM, Brian Candler <b.candler@pobox.com> wrote:

> Is there some existing code (preferably ruby) which can take a regular
> expression and build a parse tree from it?
>

I wrote one a while ago. It doesn't exactly produce a tree like you
described, but it does provide outputs that I think can be easily used to
create such a tree.

 https://github.com/ammar/regexp_parser

 https://rubygems.org/gems/regexp_parser


I only have one public, and simple, project that uses it so far:

  https://github.com/ammar/meta_re

HTH,
Ammar

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