GNU bug report logs - #2630
most keywords in emacs-lisp-mode has no syntax highlight

Please note: This is a static page, with minimal formatting, updated once a day.
Click here to see this page with the latest information and nicer formatting.

Package: emacs; Severity: wishlist; Reported by: xah lee <xah@HIDDEN>; dated Tue, 10 Mar 2009 21:40:03 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.
Severity set to `wishlist' from `normal' Request was from Chong Yidong <cyd@HIDDEN> to control@HIDDEN. Full text available.

Message received at submit@HIDDEN:


Received: (at submit) by emacsbugs.donarmstrong.com; 10 Mar 2009 21:33:02 +0000
From xah@HIDDEN Tue Mar 10 14:33:02 2009
X-Spam-Checker-Version: SpamAssassin 3.2.5-bugs.debian.org_2005_01_02
	(2008-06-10) on rzlab.ucr.edu
X-Spam-Level: 
X-Spam-Bayes: score:0.5 Bayes not run. spammytokens:Tokens not available.
	hammytokens:Tokens not available.
X-Spam-Status: No, score=0.0 required=4.0 tests=none autolearn=ham
	version=3.2.5-bugs.debian.org_2005_01_02
Received: from lists.gnu.org (lists.gnu.org [199.232.76.165])
	by rzlab.ucr.edu (8.13.8/8.13.8/Debian-3) with ESMTP id n2ALWxmq015909
	for <submit@HIDDEN>; Tue, 10 Mar 2009 14:33:00 -0700
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1Lh9ZK-0006Nc-R7
	for bug-gnu-emacs@HIDDEN; Tue, 10 Mar 2009 17:32:58 -0400
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1Lh9ZK-0006NH-5Q
	for bug-gnu-emacs@HIDDEN; Tue, 10 Mar 2009 17:32:58 -0400
Received: from [199.232.76.173] (port=56669 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43)
	id 1Lh9ZJ-0006NA-WC
	for bug-gnu-emacs@HIDDEN; Tue, 10 Mar 2009 17:32:58 -0400
Received: from mout.perfora.net ([74.208.4.195]:53570)
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <xah@HIDDEN>)
	id 1Lh9ZJ-0008OA-LA
	for bug-gnu-emacs@HIDDEN; Tue, 10 Mar 2009 17:32:57 -0400
Received: from [192.168.1.5] (c-24-6-175-142.hsd1.ca.comcast.net [24.6.175.142])
	by mrelay.perfora.net (node=mrus1) with ESMTP (Nemesis)
	id 0MKpCa-1Lh9Z740KT-000d1v; Tue, 10 Mar 2009 17:32:47 -0400
Mime-Version: 1.0 (Apple Message framework v753.1)
Content-Transfer-Encoding: quoted-printable
Message-Id: <E13CDC88-6F7A-4F04-8D1A-0186275DCFD1@HIDDEN>
Content-Type: text/plain; charset=UTF-8; delsp=yes; format=flowed
To: bug-gnu-emacs@HIDDEN
From: xah lee <xah@HIDDEN>
Subject: most keywords in emacs-lisp-mode has no syntax highlight
Date: Tue, 10 Mar 2009 14:31:25 -0700
X-Mailer: Apple Mail (2.753.1)
X-Provags-ID: V01U2FsdGVkX1/3f+u3lU20EPrHrCcCZWoxn8oPL1KPeji/wwI
 o/0LmXLw85skpvW0KZX1PS5t5GoKv+3Bae/ErPG7eINUrtxnT8
 jxVSDbM6VxObAThiiD2Aw==
X-detected-operating-system: by monty-python.gnu.org: Genre and OS details not recognized.

the syntax highlighting in emacs-lisp-mode only support the very =20
minimum of highlighting.

for example, these keywords would be colored purple by default:

  defun, lambda, while, if, progn, save-restriction

while the following built-in keywords are uncolored (black):
narrow-to-region, mapc, goto-char, point-min, search-forward, car,
nil, replace-match ... etc.

it appears that this is because only proper elisp =E2=80=9Cspecial =
forms=E2=80=9D =20
are are colored, while all the others are not (macros, functions, =20
commands, variables ...). (thanks to Nikolaj Schumacher & Tassilo Horn)

but in summary, i think the way it is is rather odd. It is rather =20
strange and difficult to understand unless the user has expert elisp =20
knowledge, and it is somewhat not typical with how most other major =20
mode for languages syntax color the lang's keywords.

(emacs-lisp-mode doesn't seem to support customize-group and font-=20
lock-maximum-decoration)

i think the current behavior is severe enough to be considered a bug.

This is emacs 22.x.

   Xah
=E2=88=91 http://xahlee.org/

=E2=98=84






Acknowledgement sent to xah lee <xah@HIDDEN>:
New bug report received and forwarded. Copy sent to Emacs Bugs <bug-gnu-emacs@HIDDEN>. Full text available.
Report forwarded to bug-submit-list@HIDDEN, Emacs Bugs <bug-gnu-emacs@HIDDEN>:
bug#2630; Package emacs. Full text available.
Please note: This is a static page, with minimal formatting, updated once a day.
Click here to see this page with the latest information and nicer formatting.
Last modified: Fri, 31 Oct 2014 17:00:04 UTC

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997 nCipher Corporation Ltd, 1994-97 Ian Jackson.