GNU bug report logs - #20301
11.88.3; mathtools.el: multlined environment inserts a spurious newline

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: gojjoe <at> gmail.com
To: bug-auctex <at> gnu.org
Subject: 11.88.3;
 mathtools.el: multlined environment inserts a spurious newline
Date: Sat, 11 Apr 2015 11:49:41 +0200

Dear All,

Inserting a multlined (note the final 'd') environment via 
LaTeX-environment, a spurious newline is inserted. Example: 
call C-c C-e multlined [ret]. The result is:

\begin{multlined}


\end{multlined}

with a spurious newline and the cursor in the second empty 
line. Insertion of all other math environments I tried 
behaves correctly instead, eg

\begin{equation}

\end{equation}

The same happens also inserting multlined when a region is 
selected. For example, marking the expression

a + b

(or its whole line) and calling C-c C-e multlined [ret] gives

\begin{multlined}
a + b

\end{multlined}

again with a spurious newline.

I think the problem is in mathtools.el: @line 198, maybe 
"newline-and-indent" is causing the problem?

Cheers!
J



Emacs  : GNU Emacs 24.3.1 (i386-mingw-nt6.1.7601)
 of 2013-03-17 on MARVIN
Package: 11.88.3

current state:
==============
(setq
 AUCTeX-date "2015-03-22"
 window-system 'w32
 LaTeX-version "2e"
 TeX-style-path '("~/.emacs.d/auctex"
		  "c:/Users/***/work/.emacs.d/elpa/auctex-11.88.3/style"
		  "c:/Users/***/work/.emacs.d/auctex/auctex-auto"
		  "c:/Users/***/work/.emacs.d/auctex/auctex-style"
		  "auctex-auto" "auctex-style")
 TeX-auto-save t
 TeX-parse-self t
 TeX-master t
 )

Message #10 received at 20301-done <at> debbugs.gnu.org (full text, mbox):

From: Tassilo Horn <tsdh <at> gnu.org>
To: gojjoe <at> gmail.com
Cc: 20301-done <at> debbugs.gnu.org
Subject: Re: bug#20301: 11.88.3;
 mathtools.el: multlined environment inserts a spurious newline
Date: Sat, 11 Apr 2015 21:50:29 +0200

gojjoe <at> gmail.com writes:

Hi!

> Inserting a multlined (note the final 'd') environment via
> LaTeX-environment, a spurious newline is inserted. Example: call C-c
> C-e multlined [ret]. The result is:
>
> \begin{multlined}
>
>
> \end{multlined}
>
> I think the problem is in mathtools.el: @line 198, maybe
> "newline-and-indent" is causing the problem?

Yes, exactly.  It's now fixed in Git.

Thanks for reporting!
Tassilo

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