Subject: bug#2910: closed (Re: bug#2910: 23.0.60; Shell-script coloring bug)

From: [email-masked] (GNU bug Tracking System)
Date: Sat, 14 Oct 2023 15:03:02 +0000

Your bug report

#26217: 23.0.60; Shell-script coloring bug

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
26217: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=26217
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: Re: bug#2910: 23.0.60; Shell-script coloring bug
From: Stefan Monnier <[email-masked]>
To: Mauro Aranda <[email-masked]>
Cc: Martin Vath <[email-masked]>, [email-masked], [email-masked]
Date: Sat, 14 Oct 2023 11:01:40 -0400
List-Id: <debbugs-submit.debbugs.gnu.org>

>> I haven't found problems, but I'm suspicious because it seems too easy.
> Welcome to the world of Emacs, where "if it's easy it must be right".

BTW, pushed to `master`, thank you.

        Stefan

Subject: 23.0.60; Shell-script coloring bug
From: Reuben Thomas <[email-masked]>
To: [email-masked]
Date: Mon, 6 Apr 2009 22:46:30 +0100 (BST)

In shell-script mode (at least for Shell-script[sh]), in the following line:

for i do

the token “do” is not colored as a keyword, which it should be. From
the relevant POSIX documentation:

http://www.opengroup.org/onlinepubs/000095399/utilities/xcu_chap02.html#tag_02

The format for the for loop is as follows:

     for name [ in [word ... ]]do
         compound-list

     done

Note that there is no explicit mention of semi-colons (this appears to
be the issue, as if the line is changed to

for i; do

then it is colored correctly, although in fact this syntax is NOT
permitted by POSIX, although bash accepts it.) A semi-colon is only
needed (and indeed, rqeuired) when an “in” clause is used, as the
“word” list mentioned above must end in a semicolon.

Hence, two things seem to need fixing:

1. In Shell-script[sh,bash] modes, “for name do” should color “do” as
    a keyword.

2. In Shell-script[sh], “for name; do” should *not* color “do” as a
    keyword.

In GNU Emacs 23.0.60.1 (i486-pc-linux-gnu, GTK+ Version 2.14.3)
  of 2008-10-13 on rothera, modified by Debian
  (emacs-snapshot package, version 1:20081013-1)
Windowing system distributor `The X.Org Foundation', version 11.0.10600000
configured using `configure  '--build' 'i486-linux-gnu' '--host' 
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib' '--localstatedir=/var' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--with-pop=yes' 
'--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.0.60/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.0.60/site-lisp:/usr/share/emacs/site-lisp' 
'--with-x=yes' '--with-x-toolkit=gtk' 'build_alias=i486-linux-gnu' 
'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -DSITELOAD_PURESIZE_EXTRA=5000 
-g -O2' 'LDFLAGS=-g -Wl,--as-needed' 'CPPFLAGS=''

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_GB.UTF-8
   value of $XMODIFIERS: nil
   locale-coding-system: utf-8-unix
   default-enable-multibyte-characters: t

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Listening to: 'Sanctus and Benedictus' from 'Mass of the Children and other
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