From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Drew Adams" Newsgroups: gmane.emacs.devel Subject: RE: problem using call-process with grep Date: Fri, 23 Dec 2005 14:18:24 -0800 Message-ID: References: NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-15" Content-Transfer-Encoding: 7bit X-Trace: sea.gmane.org 1135376325 3656 80.91.229.2 (23 Dec 2005 22:18:45 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 23 Dec 2005 22:18:45 +0000 (UTC) Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Dec 23 23:18:43 2005 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1EpvFJ-0002I7-GJ for ged-emacs-devel@m.gmane.org; Fri, 23 Dec 2005 23:18:41 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1EpvGN-0003if-QT for ged-emacs-devel@m.gmane.org; Fri, 23 Dec 2005 17:19:47 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1EpvGD-0003iO-60 for emacs-devel@gnu.org; Fri, 23 Dec 2005 17:19:37 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1EpvGB-0003i9-Ix for emacs-devel@gnu.org; Fri, 23 Dec 2005 17:19:36 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1EpvGB-0003i6-GQ for emacs-devel@gnu.org; Fri, 23 Dec 2005 17:19:35 -0500 Original-Received: from [148.87.122.30] (helo=rgminet01.oracle.com) by monty-python.gnu.org with esmtp (TLS-1.0:DHE_RSA_3DES_EDE_CBC_SHA:24) (Exim 4.34) id 1EpvFY-0000XZ-0G for emacs-devel@gnu.org; Fri, 23 Dec 2005 17:18:56 -0500 Original-Received: from rgmsgw301.us.oracle.com (rgmsgw301.us.oracle.com [138.1.186.50]) by rgminet01.oracle.com (Switch-3.1.6/Switch-3.1.6) with ESMTP id jBNMIQED032319 for ; Fri, 23 Dec 2005 15:18:26 -0700 Original-Received: from rgmsgw301.us.oracle.com (localhost [127.0.0.1]) by rgmsgw301.us.oracle.com (Switch-3.1.7/Switch-3.1.7) with ESMTP id jBNMIPI3028593 for ; Fri, 23 Dec 2005 15:18:25 -0700 Original-Received: from dradamslap (dradams-lap.us.oracle.com [130.35.177.126]) by rgmsgw301.us.oracle.com (Switch-3.1.7/Switch-3.1.7) with SMTP id jBNMIPkM028579 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NO) for ; Fri, 23 Dec 2005 15:18:25 -0700 Original-To: X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) In-Reply-To: Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:48270 Archived-At: > When I run grep 'epsilon\($\)' foo > from the shell, it finds a match. What does your grep do? > > I said: > > And if I run grep from the Cygwin command line (with either > parenthetical regexp - single or double backslashes), it > works OK. I only have the problem when I use `call-process'. > > By command line, I meant shell (bash from Cygwin). (I showed > the regexp with double-quotes, but single-quotes work too.) > > Summary: grep works with that regexp when run from the shell > or when using the Emacs `grep' command. The only problem is > with `call-process'. The quotes are not part of the regex, and are only necessary when running the command via a shell (`M-x grep' uses start-process-shell-command). The correct way to use call-process would be: (call-process "grep" nil BUFFER nil "epsilon\\($\\)" "foo") Uh, isn't that what I wrote(?): (call-process "grep" nil (generate-new-buffer "Result") nil "epsilon\\($\\)" "foo") This does *not* work for me. That's the point - that is the code I started with. It works if I change \\($\\) to $ (but that's not what I need in the general case). (And yes, I realize that the quotes are not part of the regexp. By "I showed the regexp with double-quotes" I meant that I showed it enclosed in double-quotes.)