From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Francis Belliveau Newsgroups: gmane.emacs.help Subject: Re: ASCII - Why...? -- as promised. Date: Thu, 14 Jan 2021 17:21:11 -0500 Message-ID: References: <62acbe7b-18f5-4b76-9f05-265218a58db7@default> <87mtxiecxq.fsf@omarpolo.com> <6CA23431-CF45-4B06-A560-1CE767153BC1@comcast.net> Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.20.0.2.21\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="11314"; mail-complaints-to="usenet@ciao.gmane.io" To: help-gnu-emacs Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Thu Jan 14 23:21:59 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l0B0A-0002fn-JT for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 14 Jan 2021 23:21:58 +0100 Original-Received: from localhost ([::1]:38052 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l0B09-0003wV-Ly for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 14 Jan 2021 17:21:57 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54724) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l0Azd-0003vn-V3 for help-gnu-emacs@gnu.org; Thu, 14 Jan 2021 17:21:26 -0500 Original-Received: from resqmta-ch2-06v.sys.comcast.net ([2001:558:fe21:29:69:252:207:38]:41878) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l0Azb-0004vL-81 for help-gnu-emacs@gnu.org; Thu, 14 Jan 2021 17:21:24 -0500 Original-Received: from resomta-ch2-14v.sys.comcast.net ([69.252.207.110]) by resqmta-ch2-06v.sys.comcast.net with ESMTP id 02cllRGpPsjoS0AzYlbJp8; Thu, 14 Jan 2021 22:21:20 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=20190202a; t=1610662880; bh=GQDFR/x/DAyxzQz4orHtsPWhyhYUFloZo7bPKuLBbhY=; h=Received:Received:Content-Type:Mime-Version:Subject:From:Date: Message-Id:To; b=1vOD29Qd+zeAzPR8kgjpPn1xr0+rX/uNwJps9JkiFIiZlEJhtWU+ix47f5HkZq216 iwG7d4TVanstQAQbw4K1UvFundR9RlFshRUbsMEu/y9x0KKkt2v0Na22JPBOxh+aFM JZfR5yQIKxzz/XCQtM82CgbfIpc3k1scfKOGQ7IMTKvNSi5ewxd+NXbPQcji1tCqNK TSMsXb3BGaPvwg3GQkbwDuKkgPusj3zhkIH3ng4IadtP0pnSGo6yfuqVkMGER/VzcL cpznHT6MZaIr3mHJprBbNEAuEEir0wXVxPPU5qyYCCm+PYYpn+K6Sl8hH82Wo2TLHZ nTob2TOza9ktg== Original-Received: from [192.168.1.105] ([73.119.168.97]) by resomta-ch2-14v.sys.comcast.net with ESMTPSA id 0AzPlOsWul0290AzRlNGNE; Thu, 14 Jan 2021 22:21:20 +0000 X-Xfinity-VAAS: gggruggvucftvghtrhhoucdtuddrgeduledrtddtgddufeegucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuvehomhgtrghsthdqtfgvshhipdfqfgfvpdfpqffurfetoffkrfenuceurghilhhouhhtmecufedtudenucenucfjughrpegtggfuhfgjfffgkfhfvffosehtqhhmtdhhtddvnecuhfhrohhmpefhrhgrnhgtihhsuceuvghllhhivhgvrghuuceofhdrsggvlhhlihhvvggruhestghomhgtrghsthdrnhgvtheqnecuggftrfgrthhtvghrnhepvdfgkeffgfffleetgeeiffejgeeiudeghfehveeugeduleffhfelkeejkeejjeevnecuffhomhgrihhnpegruggrmhgsrdhmvgenucfkphepjeefrdduudelrdduieekrdeljeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhephhgvlhhopegludelvddrudeikedruddruddthegnpdhinhgvthepjeefrdduudelrdduieekrdeljedpmhgrihhlfhhrohhmpehfrdgsvghllhhivhgvrghusegtohhmtggrshhtrdhnvghtpdhrtghpthhtohephhgvlhhpqdhgnhhuqdgvmhgrtghssehgnhhurdhorhhgpdhrtghpthhtohephhhonhhghihirdiihhgrohesghhmrghilhdr tghomh X-Xfinity-VMeta: sc=0.00;st=legit In-Reply-To: <6CA23431-CF45-4B06-A560-1CE767153BC1@comcast.net> X-Mailer: Apple Mail (2.3654.20.0.2.21) Received-SPF: pass client-ip=2001:558:fe21:29:69:252:207:38; envelope-from=f.belliveau@comcast.net; helo=resqmta-ch2-06v.sys.comcast.net X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:127251 Archived-At: All, It was more work that I had expected, and life got in the way a bit, but = I put up a page that has my explanation of ASCII. It can be found at > http://flb.adamb.me/software/ascii_explaination.html I would appreciate comments on what I say there. However, since that will take us far off topic, they should probably not = be sent here, but rather directly to me. I hope that at least some of you find what I have to say on the subject = useful. Fran > On Jan 9, 2021, at 12:20, Francis Belliveau = wrote: >=20 > All, >=20 >>>=20 >>> You shouldn't mix the hexadecimal and decimal representation of the >>> characters. The ASCII characters 0x01-0x1a (inclusive), i.e. the >>> characters in the range 1-26 (decimal), are the ctrl- variant of the = A-Z >>> ASCII characters (0x41-0x5a). >>=20 >> Why is the ASCII table designed into this strange layout? >>=20 >=20 > My answer is that it is not when viewed in light of a binary design = implementation. > This, and a number of similar questions asked previously, has prompted = me to write a more extensive explanation of ASCII. I will post a short = off-topic link back here when I put it on-line. >=20 > Fran >=20 >=20 >=20