GNU bug report logs - #19873
Ill-formed regular expression is constructed in forward-paragraph.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Marcin Borkowski <mbork <at> amu.edu.pl>
Cc: acm <at> muc.de, 19873 <at> debbugs.gnu.org
Subject: bug#19873: Ill-formed regular expression is constructed in forward-paragraph.
Date: Sun, 26 Feb 2017 18:57:05 +0200

> From: Marcin Borkowski <mbork <at> amu.edu.pl>
> Date: Sun, 26 Feb 2017 17:44:51 +0100
> Cc: 19873 <at> debbugs.gnu.org
> 
> First of all, my Emacs has this as paragraph-start:
> 
> "\\|[ 	]*$"
> 
> and this as paragraph-separate:
> 
> "[ 	]*$"
> 
> and frankly speaking, I'm not sure why they differ at all (by default).

I believe this is explained in the Emacs manual, node "Paragraphs".
In a nutshell, these two regexps have different purposes.

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