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=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 28323 invoked from network); 29 Mar 2021 20:41:28 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 29 Mar 2021 20:41:28 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 090009C8DF; Tue, 30 Mar 2021 06:41:25 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 6933E9C82B; Tue, 30 Mar 2021 06:41:08 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=dartmouth.edu header.i=@dartmouth.edu header.b="fefeswGJ"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 402CE9C82B; Tue, 30 Mar 2021 06:41:06 +1000 (AEST) Received: from mail-wr1-f51.google.com (mail-wr1-f51.google.com [209.85.221.51]) by minnie.tuhs.org (Postfix) with ESMTPS id 187689C829 for ; Tue, 30 Mar 2021 06:41:05 +1000 (AEST) Received: by mail-wr1-f51.google.com with SMTP id j7so14169979wrd.1 for ; Mon, 29 Mar 2021 13:41:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dartmouth.edu; s=google1; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=Ca7KlRQJy0pCYAadCPt+FV7thRaLybxRiwHvt/tpaD0=; b=fefeswGJZzAsNpE1Rzv6Fvc4fNmAid+MmOWVdrLTpR8pwsF8IuVOel9NArnpmS5Hp1 fn5Pixsy8r2FWFmyPAKQ2LrZeWyXD3c6BVfITIkd2Tqq8w+gXpn09huJMpJhXFwKZniw JMjEB6O1EH+IlVO1XLz1fPZsyug2yNoHPdJa2FqqTye6P0CsrLwekFgeojufNncDPand Z6k8EiX1oCgv4N4jDnxuht43BuP/s2mCveJQ/CzIqwDhdT4+Qi1FySZ5R+uL5Qn0fyPo tvO1nz6f1ewkuLvnnfdhqcEYSRiWCC1/LjfvJl44uSp8vwZrp1UTQH2car6RrBf9UpvG sG5A== 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; bh=Ca7KlRQJy0pCYAadCPt+FV7thRaLybxRiwHvt/tpaD0=; b=UVJD0Abhg7C9mhuDCDZ7GgGQ04trwYRCU4n5IXgWipNhUT14XYXgHONbQbIHLlLe8C nglw0y9ZlCEgU0CgYF4UkpTxAhhX9W+0QrWK43PL6+SdvPrO+iWc0Xjh4Zb2RUOav4qv jv+NNDXruUSzZHj8lY9SDzm/IfNuGW7PfwYtGf+EIfuVb6c9m7vkC2dy/u5za6WjGYUf A2Il5b8CbXRwmPqsQ0+TxzVT1iHM+kZzB5NX+kcmm9wyZYcGLCbZnjhLz/+lFkwtMqCy K8WaIZYntTYOR0kQ71h12q+IdM8jpMSSKXf9wG6IsufaweBLN2Pfi2DNu42GVMYYBaDS LYMQ== X-Gm-Message-State: AOAM531wIKxeWBT5+/tt6/E2BBGGLtEOY3jNFrge4S4LY2RaoD4wz2HA AQlRiOFTHbaCL65fRt5ieTPx90/Z3/hjm/5Ne4D5Ww== X-Google-Smtp-Source: ABdhPJylMlQCXRzY9ipVVoguNnszmeDnuMuHU4EW3i7la3hcUzDcCeEkgVOR9PYlljGLrAiwUnM63d0e4VieGrFzNWA= X-Received: by 2002:a5d:4ac7:: with SMTP id y7mr30847520wrs.395.1617050463781; Mon, 29 Mar 2021 13:41:03 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: M Douglas McIlroy Date: Mon, 29 Mar 2021 16:40:48 -0400 Message-ID: To: peter@schaffter.ca, TUHS main list Content-Type: text/plain; charset="UTF-8" Subject: Re: [TUHS] Soft hyphens 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: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Sorry, I hit send by mistake. I intended to conclude with: If you really want to hyphenate one day and not the next, you can pick a character c and use ".hc c" to turn it on and .char c \& to turn it off. Doug On Mon, Mar 29, 2021 at 4:28 PM M Douglas McIlroy wrote: > > > When hyphenation is disabled, soft (discretionary) hyphens are > > interpreted. > > In pre-Unix roff hyphenation mode 0 turned off all breaking of words. > The original troff, however, behaved as described above, and alsowant > broke genuinely hyphenated words in mode 0. If you t really wants > to break words one day, you may use