From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#8632: 23.2; shell-script[bash] doesn't handle bitshift $(( 1 << 16 )) Date: Fri, 13 May 2011 16:12:54 -0300 Message-ID: References: <7jmxiz1mlu.fsf@asome.wongs.net> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1305314052 30645 80.91.229.12 (13 May 2011 19:14:12 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 13 May 2011 19:14:12 +0000 (UTC) Cc: 8632@debbugs.gnu.org To: Ben Wong Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri May 13 21:14:08 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QKxoM-00011S-8T for geb-bug-gnu-emacs@m.gmane.org; Fri, 13 May 2011 21:14:06 +0200 Original-Received: from localhost ([::1]:59056 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QKxoL-0005MP-Ks for geb-bug-gnu-emacs@m.gmane.org; Fri, 13 May 2011 15:14:05 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:50139) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QKxoJ-0005ME-QP for bug-gnu-emacs@gnu.org; Fri, 13 May 2011 15:14:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QKxoI-0000nt-U4 for bug-gnu-emacs@gnu.org; Fri, 13 May 2011 15:14:03 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:56280) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QKxoI-0000nn-S0 for bug-gnu-emacs@gnu.org; Fri, 13 May 2011 15:14:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1QKxoI-0004cs-CQ; Fri, 13 May 2011 15:14:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 13 May 2011 19:14:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 8632 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 8632-submit@debbugs.gnu.org id=B8632.130531398717695 (code B ref 8632); Fri, 13 May 2011 19:14:02 +0000 Original-Received: (at 8632) by debbugs.gnu.org; 13 May 2011 19:13:07 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1QKxnO-0004bM-UQ for submit@debbugs.gnu.org; Fri, 13 May 2011 15:13:07 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1QKxnM-0004ao-69 for 8632@debbugs.gnu.org; Fri, 13 May 2011 15:13:04 -0400 Original-Received: from 213-159-126-200.fibertel.com.ar ([200.126.159.213]:34791 helo=ceviche.home) by fencepost.gnu.org with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1QKxnG-0004Y4-F7; Fri, 13 May 2011 15:12:58 -0400 Original-Received: by ceviche.home (Postfix, from userid 20848) id 0BC8966152; Fri, 13 May 2011 16:12:55 -0300 (ART) In-Reply-To: <7jmxiz1mlu.fsf@asome.wongs.net> (Ben Wong's message of "Fri, 06 May 2011 15:38:05 -0700") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Fri, 13 May 2011 15:14:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) 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:46452 Archived-At: > In shell-script mode (bash minor mode) Emacs 23.2 incorrectly parses the > following line as a HERE DOCUMENT. > echo $(( 1 << 16 )) > It is confused because sh-font-lock-open-heredoc (in sh-script.el) > does not know about bash's ARITHMETIC EXPANSION. Indeed, thanks for spotting this. > There should be a function, similar to sh-in-comment-or-string, which > parses the script looking for arithmetic expansion. I guess the way to do it would be to try to handle $(( as a string-opener in sh-syntax-propertize-function and then write code to jump to the matching )) to mark it as the string-closer. Patch welcome, Stefan