bug#29659: Fwd: Re: bug#29659: 25.2; better rmail-summary-by-topic

[Eli Zaretskii]

> Date: Wed, 24 Jan 2018 13:00:59 +0100
> From: Francesco Potortì <pot@gnu.org>
> Cc: 29659@debbugs.gnu.org
> 
> (resending after reopening the bug)
> 
> There is an obvious error in the following code, which for some reason
> did work for me but works no more after an Emacs restart.
> 
> The regexp variable should start with a double backslash:
>       (regexp "\\`[ \t\n]*\\(\\(\\w\\{1,3\\}:\\|\\[[^]]+]\\)[ \t\n]+\\)*"))
> 
> rather than
>       (regexp "\`[ \t\n]*\\(\\(\\w\\{1,3\\}:\\|\\[[^]]+]\\)[ \t\n]+\\)*"))

Thanks, fixed.