From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Drew Adams" Newsgroups: gmane.emacs.bugs Subject: bug#12054: 24.1; regression? font-lock no-break-space with nil nobreak-char-display Date: Sat, 3 Nov 2012 11:04:47 -0700 Message-ID: <1B5F63574D8D49EBAF8F9EFB8849D2CF@us.oracle.com> References: <87mwyzyn76.fsf@gnu.org><45DEAA69BC6E4630BA8DA0B07A0ECE92@us.oracle.com><87lieimx9n.fsf@gnu.org><36A068647715410282C1FB4F5FC89CEC@us.oracle.com> <87mwyyk1ne.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1351965912 18604 80.91.229.3 (3 Nov 2012 18:05:12 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 3 Nov 2012 18:05:12 +0000 (UTC) Cc: 12054@debbugs.gnu.org To: "'Chong Yidong'" Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Nov 03 19:05:21 2012 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1TUi5w-0004xe-Ha for geb-bug-gnu-emacs@m.gmane.org; Sat, 03 Nov 2012 19:05:20 +0100 Original-Received: from localhost ([::1]:45996 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TUi5n-0006uG-Q0 for geb-bug-gnu-emacs@m.gmane.org; Sat, 03 Nov 2012 14:05:11 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:56786) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TUi5l-0006sY-Bc for bug-gnu-emacs@gnu.org; Sat, 03 Nov 2012 14:05:10 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TUi5k-0001oM-4s for bug-gnu-emacs@gnu.org; Sat, 03 Nov 2012 14:05:09 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:37205) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TUi5k-0001o3-0Q for bug-gnu-emacs@gnu.org; Sat, 03 Nov 2012 14:05:08 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1TUi8Y-0006Dm-9j for bug-gnu-emacs@gnu.org; Sat, 03 Nov 2012 14:08:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: "Drew Adams" Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 03 Nov 2012 18:08:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 12054 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 12054-submit@debbugs.gnu.org id=B12054.135196607723903 (code B ref 12054); Sat, 03 Nov 2012 18:08:02 +0000 Original-Received: (at 12054) by debbugs.gnu.org; 3 Nov 2012 18:07:57 +0000 Original-Received: from localhost ([127.0.0.1]:47456 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TUi8S-0006DT-Fa for submit@debbugs.gnu.org; Sat, 03 Nov 2012 14:07:57 -0400 Original-Received: from aserp1040.oracle.com ([141.146.126.69]:46795) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TUi8R-0006DM-2q for 12054@debbugs.gnu.org; Sat, 03 Nov 2012 14:07:55 -0400 Original-Received: from ucsinet21.oracle.com (ucsinet21.oracle.com [156.151.31.93]) by aserp1040.oracle.com (Sentrion-MTA-4.2.2/Sentrion-MTA-4.2.2) with ESMTP id qA3I4w57022489 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sat, 3 Nov 2012 18:04:59 GMT Original-Received: from acsmt356.oracle.com (acsmt356.oracle.com [141.146.40.156]) by ucsinet21.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id qA3I4vLe020514 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 3 Nov 2012 18:04:58 GMT Original-Received: from abhmt102.oracle.com (abhmt102.oracle.com [141.146.116.54]) by acsmt356.oracle.com (8.12.11.20060308/8.12.11) with ESMTP id qA3I4v2d020253; Sat, 3 Nov 2012 13:04:57 -0500 Original-Received: from dradamslap1 (/10.159.185.65) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sat, 03 Nov 2012 11:04:56 -0700 X-Mailer: Microsoft Office Outlook 11 In-reply-to: <87mwyyk1ne.fsf@gnu.org> Thread-Index: Ac257RL06CD0ObC+RnG+SZFojW7YNgAABSOA X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 X-Source-IP: ucsinet21.oracle.com [156.151.31.93] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:66400 Archived-At: > > So just what is the "most general read syntax for a char" now? > > The literal representation of the character. This should > work on older Emacsen too, I think. And on Emacs >= 22, you > can use \uNNNN and \U00NNNNNN escape sequences if you like. Got it. So I guess there is no escape syntax that will work with older Emacs versions also. (You didn't say that, but I'm guessing.) One problem with using a literal char is when you need the Lisp code to be digestible by applications that choke on such chars. That's one reason we _have_ an escape syntax. For example, uploading files containing certain control chars to certain sites can result in them being filtered out. Using escape syntax allows the actual chars in the file to be ascii. I understand that the \u and \U escape syntax fits the bill here, but not for older Emacs versions.