From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Kaushal Modi Newsgroups: gmane.emacs.help Subject: Canonical way of marking a buf local var to be safe if nil/t? Date: Thu, 12 May 2016 17:32:28 +0000 Message-ID: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1463074380 2908 80.91.229.3 (12 May 2016 17:33:00 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 12 May 2016 17:33:00 +0000 (UTC) To: Help Gnu Emacs mailing list Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu May 12 19:32:59 2016 Return-path: Envelope-to: geh-help-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 1b0uTp-0005bc-0w for geh-help-gnu-emacs@m.gmane.org; Thu, 12 May 2016 19:32:57 +0200 Original-Received: from localhost ([::1]:58987 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b0uTk-0002pU-Uw for geh-help-gnu-emacs@m.gmane.org; Thu, 12 May 2016 13:32:52 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44208) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b0uTZ-0002nf-RA for help-gnu-emacs@gnu.org; Thu, 12 May 2016 13:32:42 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b0uTX-00081Q-LO for help-gnu-emacs@gnu.org; Thu, 12 May 2016 13:32:40 -0400 Original-Received: from mail-oi0-x22c.google.com ([2607:f8b0:4003:c06::22c]:33406) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b0uTX-000815-G5 for help-gnu-emacs@gnu.org; Thu, 12 May 2016 13:32:39 -0400 Original-Received: by mail-oi0-x22c.google.com with SMTP id v145so130992397oie.0 for ; Thu, 12 May 2016 10:32:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to; bh=WniSQn65+bionb0xJ5ZPsCg7AZX8Q+Zf0JXJeubHPLY=; b=uGiCfU4Dg16DV9bPGvFVeFfUuFZQZUvgbTf2Y5ltMGu6OfupZ4WkO4R9p63rmowxq+ imlX58gem8jyWZCazi3E87zCKboLwSKWt0N6H7p01ORjZjEqPX/YLjUMK91eZDBjaOsO aUC8b9plaa1F94iXArgthxtZunSsSks6auWDku2Jv8YowRaBTkjX8GwiyYXQxp98Ktec QuFqaRQeO02d5fFpKhxn0nwYiciI8cuvwmd9/0LYAC/dOA8AE3XJMGcPvPXQ00ZNBaXV 1tjh1RhWG265FAVsK982OJiO4JNn3FpZ7MXJhjD39VN3ZikVHv2z52m1LoOftfOf9TWx 7IoA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=WniSQn65+bionb0xJ5ZPsCg7AZX8Q+Zf0JXJeubHPLY=; b=cSkNLUSTuEVQrT73/OS4OVXF4Wy6zwc/hIjw8giCCbAwL8KAd7ZSSf+fw/iaBMCIgA v6pEdB7Hvj1OBa8GPhvfzzE4eKKUDAL/Q1cZxtJTZOnzO6hlFdSwNnlW3w4X7a+DrWbn w/IVI12mscFV0LAJgpvhRbLUIeWTqY6vjmaO0m0IutDst5v0mzacbh53evPd5aFVL/cc A+b3u3tQfZut1m0IWkode02VPZrxEZR7kcJzzRhygAtYx70pYsoUKPw4BGQje39Z+vYd UmIQZW+99KwncAB8oJQXMp5JJ7LELnFYcCrS0IlSGzxVpOcosf+45tPFiPTGacOBZi7d D7kg== X-Gm-Message-State: AOPr4FVojBip1JStU80Sy3hPx5cYnKD1j8IiHE7kp+d+flLb1PRfG3mSKGmgdUvZYqtnPi9YgE8u/g8n9ZHjYg== X-Received: by 10.157.45.136 with SMTP id g8mr6504158otb.133.1463074358719; Thu, 12 May 2016 10:32:38 -0700 (PDT) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2607:f8b0:4003:c06::22c X-Content-Filtered-By: Mailman/MimeDel 2.1.21 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:109935 Archived-At: Hi, What would be a canonical way (if any) of setting a var to be a safe buffer local variable as long as its value is either nil or t? I use (put 'my-foo-var 'safe-local-variable (lambda (val) (or (equal val nil) (equal val t)))) -- -- Kaushal Modi