bug-gnu-emacs
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

sh-script indentation setting consistency improvements


From: Michael Wardle
Subject: sh-script indentation setting consistency improvements
Date: Thu, 12 May 2005 20:55:12 +1000 (EST)

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English, because the Emacs maintainers do not have
translators to read other languages for them.

Your bug report will be posted to the address@hidden mailing list,
and to the gnu.emacs.bug news group.

In GNU Emacs 21.4.1 (i386-pc-linux-gnu)
 of 2005-03-18 on trouble, modified by Debian
configured using `configure '--build=i386-linux' '--host=i386-linux' 
'--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' 
'--localstatedir=/var/lib' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--with-pop=yes' '--with-x=no' 'CFLAGS=-DDEBIAN -g 
-O2' 'build_alias=i386-linux' 'host_alias=i386-linux''
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_AU.utf8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:


Following on from my previous message of May 8, I have a few more
comments regarding the default settings for sh-mode indentation.

The current default indentation settings are:
sh-indent-for-do: +
sh-indent-after-do: *
sh-indent-after-loop-construct: +
sh-indent-after-if: +
sh-indent-for-then: +

Probably the most common shell style -- when indented using these
settings -- would look like this:

if [ -n "$verbose" ]; then
    for arg; do
        echo $arg
    done
fi

An alternate form that I prefer -- where the if..then..fi and
while..do..done are split over two lines, thus avoiding the
semi-colon -- looks like this using the same settings:

if [ -n "$verbose" ]
    then
    for arg
      do
      echo $arg
    done
fi

I think the form of indentation generated by Emacs sh-script for
the second example is, while elegant, needlessly different from
the first and does not reflect common usage.

I believe the second example should be indented this way:

if [ -n "$verbose" ]
then
    for arg
    do
        echo $arg
    done
fi

This indentation style maintains the loop bodies in the same column
irrespective of whether semi-colons are used.  It is also the one
that appears in the second edition of "Learning the Korn Shell" by
Bill Rosenblatt, the same style that sh-mode claims to support.

Refer:
if..then: page 136
for..do: page 154

The settings to achieve this indentation style are:
sh-indent-after-if: + (unchanged)
sh-indent-for-then: 0 (previously +)
sh-indent-for-do: 0 (previously +)
sh-indent-after-do: + (previously *)

Having investigated this, I am now aware of which settings I can
use in my .emacs file, but I would like these to become the
defaults so that all users can benefit from them.







reply via email to

[Prev in Thread] Current Thread [Next in Thread]