From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, HTML_MESSAGE,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 29090 invoked from network); 3 Sep 2020 18:12:35 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 3 Sep 2020 18:12:35 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 3B6B29CA6E; Fri, 4 Sep 2020 04:12:33 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id AB4D69CA4C; Fri, 4 Sep 2020 04:12:14 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=pass (2048-bit key; unprotected) header.d=bsdimp-com.20150623.gappssmtp.com header.i=@bsdimp-com.20150623.gappssmtp.com header.b="na14PfM0"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 16CD29CA4C; Fri, 4 Sep 2020 04:12:12 +1000 (AEST) Received: from mail-qk1-f175.google.com (mail-qk1-f175.google.com [209.85.222.175]) by minnie.tuhs.org (Postfix) with ESMTPS id DE1119CA4B for ; Fri, 4 Sep 2020 04:12:10 +1000 (AEST) Received: by mail-qk1-f175.google.com with SMTP id n133so3906766qkn.11 for ; Thu, 03 Sep 2020 11:12:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=gHg6sW/jrYCf9D3/FHpVzmMTruJFLElSL5rbNrAM03E=; b=na14PfM0Bx9dmmKr/QMyyKETsd108aEJOLnPRmwC/a7ewy7P++HZbHx2hKYeyx5UU8 Nh4Z3nCdxzWbrsCwG9F7eRi0kPGIcECS9kXTYbZKyRuevGHq5uM4KXpt9G4x4fn0J+MK DLI+o4NC77bk8OkdbE6lahEF55wBLTENDREGy5yaNWTkBBkIihYjMPPCASdlxpXaIE7d gMbvGQdF+WYD4VJ5XcofCYzO94jx34gX0IHIcDM9/nrM9d1up9moMP/x6u9dFdc0kvlG 7cGIMQKtWwlRJs+SVTpnCD++IkJZ0OwdPyMh1noZy0Ou0+qvkvtlgMloVNYO1i4GQp1V KDbQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=gHg6sW/jrYCf9D3/FHpVzmMTruJFLElSL5rbNrAM03E=; b=KpotVtxH2ioE8wg7VTFTWdF3HN5xYiNUuS/ZFLowa6h67hsUI+SDL5DKuCF5ZrS4HN bI6PiTO0EeA0wtH+VntxjmWa8u2FGlEtJa+3h9pp9zp0E/oiYz+tQtTU2ZqTJXHZtoOW oNZEmGE4C7Pzg84PEGiQuCHPDFxsVBNHtD2A8zjWV8NuBe6U6AK1JZGgwlf/AOEIRd2c dGVUqU3dSe43Xrx/ywbfYn/vD2JUFhecoRaPX0QvLdMNiQk1dZHOIwd5Pkih0+ovoKhy QhWYPnasLaZSZ1QLMmasnLaFwf1VrOgDt8s1hcYRWwVhKnAxKqYC6g3dVZsEPq6VjV3u XkPA== X-Gm-Message-State: AOAM530rxiR8rCTtOq1pnMUO9Z5L4JaDb/zgwgi14mH5u5e+oBpbrvya zr5nKv7rJWQtFhSj4CZfPHZVTX/ud7NOqCbQAT3NTw== X-Google-Smtp-Source: ABdhPJxdoywIvKQmyqYLgPSJayEWpm/+XcfHguZ+1mTw22TobM9y+TEaeoW+1jEaJhga+e8r00sBY00FVY+cMndM7N0= X-Received: by 2002:a37:b801:: with SMTP id i1mr4113468qkf.240.1599156729693; Thu, 03 Sep 2020 11:12:09 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Warner Losh Date: Thu, 3 Sep 2020 12:11:58 -0600 Message-ID: To: Dave Horsfall Content-Type: multipart/alternative; boundary="000000000000d05b6705ae6cb04f" Subject: Re: [TUHS] Whence did "XXX" come about? X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: The Eunuchs Hysterical Society Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --000000000000d05b6705ae6cb04f Content-Type: text/plain; charset="UTF-8" The earliest my quick grep could find was 4.0BSD. I didn't find it in this sense in pwb, but it was a quick grep... xxx is used extensively in prior versions, but there it's meaning is 'placeholder' or 'don't care'. Mostly for /tmp/XXXX files, but also for things like Jxxx handles all the jump commands or dates of the form 24 Feb XXXX or stuff like that. Warner On Thu, Sep 3, 2020 at 11:34 AM Dave Horsfall wrote: > For yonks I've been seeing "XXX" as a flag to mean "needs more work" or > "look at this carefully, just in case" etc, and I use it myself. > > Whence did it come about? I think I saw it as early as PWB, but can't be > sure. > > -- Dave, wondering how many nanny-filters he triggered with "XXX" > --000000000000d05b6705ae6cb04f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
The earliest my quick grep could find was 4.0BSD. I d= idn't find it in this sense in pwb, but it was a quick grep...

xxx is used extensively in prior versions, but there it= 9;s meaning is 'placeholder' or 'don't care'. Mostly fo= r /tmp/XXXX files, but also for things like Jxxx handles all the jump comma= nds or dates of the form 24 Feb XXXX or stuff like that.

Warner

On Thu, Sep 3, 2020 at 11:34 AM Dave Horsfall <dave@horsfall.org> wrote:
For yonks I've been seeing &q= uot;XXX" as a flag to mean "needs more work" or
"look at this carefully, just in case" etc, and I use it myself.<= br>
Whence did it come about?=C2=A0 I think I saw it as early as PWB, but can&#= 39;t be
sure.

-- Dave, wondering how many nanny-filters he triggered with "XXX"=
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