bug#23108: 25.0.92; emacs-lisp-mode: wrong indentation in `let' binding list

bug#23108: 25.0.92; emacs-lisp-mode: wrong indentation in `let' binding list

[Michael Heerdegen]

Hello,

in emacs -Q, this expression:

--8<---------------cut here---------------start------------->8---
(let (from to
           (temp-buffer (generate-new-buffer "temp")))
  body
  body)
--8<---------------cut here---------------end--------------->8---

is indented exactly as I pasted it here, e.g. in scratch or any
emacs-lisp-mode buffer.  IMHO the `temp-buffer' binding should be
indented to the same column as `from'.

When I wrap `from' in parens (which doesn't change the semantic of the
expression), the indentation suddenly works as I expect.


Thanks,

Michael.




In GNU Emacs 25.0.92.5 (x86_64-pc-linux-gnu, GTK+ Version 3.18.9)
 of 2016-03-23 built on drachen
Repository revision: c0165ea4d6ecf81db6728782c7322c311ee0a783
Windowing system distributor 'The X.Org Foundation', version 11.0.11802000
System Description:	Debian GNU/Linux testing (stretch)

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GSETTINGS NOTIFY
LIBXML2 FREETYPE XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11

Important settings:
  value of $LC_ALL: de_DE.utf8
  value of $LC_COLLATE: C
  value of $LC_TIME: C
  value of $LANG: de_DE.utf8
  locale-coding-system: utf-8-unix

Major mode: Emacs-Lisp

bug#23108: 25.0.92; emacs-lisp-mode: wrong indentation in `let' binding list

[Kaushal Modi]

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I would also like to have a solution to this.

For now, I arrange my let bindings as follows:

--8<---------------cut here---------------start------------->8---
(let ((temp-buffer (generate-new-buffer "temp"))
      from to)
  body
  body)
--8<---------------cut here---------------end--------------->8---

--
Kaushal Modi

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bug#23108: 25.0.92; emacs-lisp-mode: wrong indentation in `let' binding list

[Dmitry Gutov]

On 03/25/2016 06:04 PM, Kaushal Modi wrote:
> I would also like to have a solution to this.
>
> For now, I arrange my let bindings as follows:

Me too, on both counts.

bug#23108: 25.0.92; emacs-lisp-mode: wrong indentation in `let' binding list

[Michael Heerdegen]

Michael Heerdegen <michael_heerdegen@web.de> writes:

> (let (from to
>            (temp-buffer (generate-new-buffer "temp")))
>   body
>   body)

Hmm, `let' has just simply lisp-indent-function -> 1, so it seems the
list of bindings is not treated specially.  Thus, in the above case you
get an indentation like for a function call.


Michael.