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 21434 invoked from network); 26 May 2021 00:19:51 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 26 May 2021 00:19:51 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 4F1369C091; Wed, 26 May 2021 10:19:48 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 104319B6B4; Wed, 26 May 2021 10:19:17 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=utah.edu header.i=@utah.edu header.b="Y0sNWWlf"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 6DE139B6B4; Wed, 26 May 2021 10:19:11 +1000 (AEST) X-Greylist: delayed 427 seconds by postgrey-1.36 at minnie.tuhs.org; Wed, 26 May 2021 10:19:10 AEST Received: from ipo8.cc.utah.edu (ipo8.cc.utah.edu [155.97.144.47]) by minnie.tuhs.org (Postfix) with ESMTPS id 0D6389B654 for ; Wed, 26 May 2021 10:19:10 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=utah.edu; i=@utah.edu; q=dns/txt; s=UniversityOfUtah; t=1621988350; x=1653524350; h=date:from:to:cc:subject:message-id; bh=6vjfdseX/JWKEEWLLtOEiMQ1gCIW+E+/kYg1IAPhtp0=; b=Y0sNWWlfOKsuhjaG/TfHaSxLoyVUVkC0d3cadinLynpVS3mhfZSJe37F WLYvsErc690ZTNnNKt6vaJExnWKYoGRba19ktI+7iZIWZQvaQNzexDbdK a56OEQeossXYCalzWPym2I2NT/Y0NfL/CUgRybcC+3sHbeIu034TMGs/p HFGHyhVYQB54iAqmakI0ZwOWA7JgJilNt+YCImCODZz8scTvXPiXH/g7/ uGYhYCkCSnQfst4x9cXPWJPMevmtQewtXwTJqxGWVeKk3TWbY0rr0aGQ1 z69SLo1fB/wmAe4/cw6nTNcJ21m0FlhfE0GiSwDoMIuwXfDLXwm9kerO5 w==; IronPort-SDR: o+DFBDGZ+nD1xhrxECbYsb1MFXbu7ctufCIwNMF6dUxWLlpFdLnyyLyRwMXg7uU14fM8BMErgf qheuqjFlVDxMbIwFQnz5rO83jcplrWSrc25BvgSYnFcltq0qldA1JGkLoL2xVe/5Nwn3pOkcE/ F50+jyjyhVPNiSDnz72zsuwT7p7SsAfhUMGx1yTv07A9AY+/hjp4/ZKQm0ML9R2/3lK3f/08UF 0tRghmOH8qfvg9/YtZUQGH5qm0qMpge0B9aePBK1ZTwLqZBGDaldKVPmSrPUh8mRKn//QnY1PN JkM= X-IronPort-AV: E=Sophos;i="5.82,329,1613458800"; d="scan'208";a="305516821" Received: from mail.math.utah.edu ([155.101.98.135]) by ipo8smtp.cc.utah.edu with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 May 2021 18:12:02 -0600 Received: from gamma.math.utah.edu (gamma.math.utah.edu [155.101.96.20]) by mail.math.utah.edu (8.16.1/8.16.1) with ESMTP id 14Q0C0a1009116; Tue, 25 May 2021 18:12:00 -0600 (MDT) Received: from gamma.math.utah.edu (localhost [127.0.0.1]) by gamma.math.utah.edu (8.15.1/8.15.1) with ESMTP id 14Q0C0Pt005168; Tue, 25 May 2021 18:12:00 -0600 Received: (from beebe@localhost) by gamma.math.utah.edu (8.15.1/8.15.1/Submit) id 14Q0C0KM005166; Tue, 25 May 2021 18:12:00 -0600 Date: Tue, 25 May 2021 18:12:00 -0600 From: "Nelson H. F. Beebe" To: "The Unix Heritage Society mailing list" X-US-Mail: "Department of Mathematics, 110 LCB, University of Utah, 155 S 1400 E RM 233, Salt Lake City, UT 84112-0090, USA" X-Telephone: +1 801 581 5254 X-FAX: +1 801 581 4148 X-URL: http://www.math.utah.edu/~beebe Message-ID: X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.3.8 (mail.math.utah.edu [155.101.98.135]); Tue, 25 May 2021 18:12:00 -0600 (MDT) Subject: [TUHS] [tuhs] Dennis Ritchie's couch 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" The last article of the latest issue of the Communications of the ACM that appeared electronically earlier today is a brief interview with this year's ACM Turing Award winners, Al Aho and Jeff Ullman. The article is Last byte: Shaping the foundations of programming languages https://doi.org/10.1145/3460442 Comm. ACM 64(6), 120, 119, June 2021. and it includes a picture of the two winners sitting on Dennis Ritchie's couch. I liked this snippet from Jeff Ullman, praising fellow list member Steve Johnson's landmark program, yacc: >> ... >> At the time of the first Fortran compiler, it took several >> person-years to write a parser. By the time yacc came around, >> you could do it in an afternoon. >> ... ------------------------------------------------------------------------------- - Nelson H. F. Beebe Tel: +1 801 581 5254 - - University of Utah FAX: +1 801 581 4148 - - Department of Mathematics, 110 LCB Internet e-mail: beebe@math.utah.edu - - 155 S 1400 E RM 233 beebe@acm.org beebe@computer.org - - Salt Lake City, UT 84112-0090, USA URL: http://www.math.utah.edu/~beebe/ - -------------------------------------------------------------------------------