From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Rusi Newsgroups: gmane.emacs.help Subject: Re: if vs. when vs. and: style question Date: Thu, 26 Mar 2015 06:00:47 -0700 (PDT) Message-ID: References: <87sicvwckx.fsf@wmi.amu.edu.pl> <87wq27yvqg.fsf@debian.uxu> <8d531e99-7260-4263-ac99-09c6871e2708@googlegroups.com> <87vbhq53lf.fsf@debian.uxu> <87a8z23p23.fsf@kuiper.lan.informatimago.com> <87lhilx0cf.fsf@debian.uxu> <87twx9360u.fsf@kuiper.lan.informatimago.com> <0d1d19ab-06e9-462d-8867-9a49b1e232d3@googlegroups.com> <87lhil2io1.fsf@kuiper.lan.informatimago.com> <87d23w3mzu.fsf@kuiper.lan.informatimago.com> <20150325222113.6ef43ce0@JRWUBU2> <0152f53d-dfe7-4b00-846c-efd261bbd910@googlegroups.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1427375123 3198 80.91.229.3 (26 Mar 2015 13:05:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 26 Mar 2015 13:05:23 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Mar 26 14:05:23 2015 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 1Yb7TM-0000Ro-85 for geh-help-gnu-emacs@m.gmane.org; Thu, 26 Mar 2015 14:05:20 +0100 Original-Received: from localhost ([::1]:44434 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Yb7TL-0007VS-EJ for geh-help-gnu-emacs@m.gmane.org; Thu, 26 Mar 2015 09:05:19 -0400 X-Received: by 10.140.235.83 with SMTP id g80mr15932984qhc.5.1427374848426; Thu, 26 Mar 2015 06:00:48 -0700 (PDT) X-Received: by 10.50.111.71 with SMTP id ig7mr153456igb.1.1427374848387; Thu, 26 Mar 2015 06:00:48 -0700 (PDT) Original-Path: usenet.stanford.edu!h3no4937262qgf.1!news-out.google.com!db6ni5igc.0!nntp.google.com!z20no3466398igj.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Original-Newsgroups: gnu.emacs.help In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=117.215.20.116; posting-account=mBpa7woAAAAGLEWUUKpmbxm-Quu5D8ui Original-NNTP-Posting-Host: 117.215.20.116 User-Agent: G2/1.0 Injection-Date: Thu, 26 Mar 2015 13:00:48 +0000 Original-Xref: usenet.stanford.edu gnu.emacs.help:211079 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 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-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:103359 Archived-At: On Thursday, March 26, 2015 at 3:31:59 PM UTC+5:30, Gian Uberto Lauri wrote= : > Rusi writes: >=20 > > Its worse than just 'misread' giving bugs: > > https://en.wikipedia.org/wiki/IDN_homograph_attack >=20 > This is interesting, but could be solved (for the misread part) at the > lexical analyzer level of a compiler/interpreter, i.e. refusing > strings that contain strings with character that do not belong to the > same (human) alphabet. I guess its important to distinguish two quite different kinds of problem: a. Stupidity/Carelessness =E2=87=92 Shoot oneself in foot b. Malice, Ill-intent, aka criminality *** Welcome to IELM *** Type (describe-mode) for help. ELISP> (setq =D0=BA 0) 0 (#o0, #x0, ?\C-@) ELISP> k *** Eval error *** Symbol's value as variable is void: k ELISP>=20 [May or may not be obvious depending on fonts that one k is latin the other= is cyrillic ] Now with at least aehkoptxy being present in Latin and Cyrillic, just as someone can spoof URLs, probably someone can introduce subtle 'viruses' into source code