Subject: Re: bug#36496: [PATCH] Describe the rx notation in the lisp manual

From: Eli Zaretskii <[email-masked]>
Date: Sat, 06 Jul 2019 09:47:30 +0300

> From: Richard Stallman <[email-masked]>
> Cc: [email-masked], [email-masked]
> Date: Fri, 05 Jul 2019 20:10:26 -0400
> 
> In the past, various practical factors have made rx somewhat inconvenient,
> and that prevented rx from competing with the regexp syntax.
> Recently we have made some improvements in rx; are they enough to
> make rx a real competitor for regexps?

I cannot answer the question without knowing which practical factors
made rx inconvenient in the past.  Where can one find this
information?