From: nobu.nokada@...
Date: 2002-05-16T08:14:52+09:00
Subject: Re: How to Convert Regex Back to String in Exact Match?

Hi,

At Thu, 16 May 2002 02:39:56 +0900,
William Djaja Tjokroaminata wrote:
> Now, given a regex "reg" that was created from a string "str" such as
> above, is there any simple way to recover str back from reg?  I know that
> in general it is impossible to convert a regex into a string.  However, in
> the special case such as above (we know how reg was created from str), is
> there an easy way to convert reg to str?

Keeping original string. :)

> Basically, I need the inverse of the method escape.  I can remove '\A'
> and '\z' without any problem, but I don't know how to deal with all the
> replacements that have been done by the method escape.  Thanks.

Strip backslashes followed by any letter.

  reg.source.sub(/\A\\A/, '').sub(/\\z\z/, '').gsub(/\\(.)/, '\1')

-- 
Nobu Nakada