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[24.113.81.134]) by smtp.gmail.com with ESMTPSA id e7-20020a63ee07000000b0041b2f37c571sm6063429pgi.34.2022.08.21.13.07.44 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 21 Aug 2022 13:07:44 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.7\)) From: Rich Morin In-Reply-To: Date: Sun, 21 Aug 2022 13:07:42 -0700 Content-Transfer-Encoding: quoted-printable Message-Id: <48947943-90FA-43DA-A7FD-4B75BE9549C7@cfcl.com> References: To: TUHS main list X-Mailer: Apple Mail (2.3608.120.23.2.7) Message-ID-Hash: NEIR76GFP7MFZ3EF5ARQRKGKXIW2CW7L X-Message-ID-Hash: NEIR76GFP7MFZ3EF5ARQRKGKXIW2CW7L X-MailFrom: rdm@cfcl.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Nice video with Brian Kernighan List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: > On Aug 21, 2022, at 08:09, John Cowan wrote: >=20 > On Sat, Aug 20, 2022 at 2:26 PM Rich Morin wrote: > =20 > - used AWK to convert the data for use with my SunCore interpreter >=20 > What is this SunCore of which you speak? Dr. Google reports too many = confounds. ... I was able to find some web mentions of the relevant SunCore. I've put = a set of links below, which others may well be able to improve upon. = Anyway, the SunCore Graphics Package shipped with early versions of = SunOS. It was a set of C libraries which allowed programs to draw on the = bitmapped display. My interpreter read simple text commands (eg, = "fn_name arg_1 ..."), parsed them, and made the specified library calls. -r P.S. For the curious... The dendrogram plotting software, which ran on U of MD's IBM and Univac = mainframes, generated line printer plot files. These used characters = such as dashes and vertical bars to draw the dendrogram "trees". So, = Vicki's code needed to scan the files, extract the shape of each tree, = and generate plotting commands for my interpreter. The production process for that part of Vicki's thesis was roughly as = follows: - hand-code data files in a common, human-friendly format (vi) - convert into formats for the IBM and Univac software (AWK) - upload and process the files, then download the results - analyze the line printer plot files of dendrograms (AWK) - generate commands for the SunCore interpreter (AWK) - run the interpreter, generating diagrams on the display - dump bitmap images of the displayed diagrams - print the images, using a dot-matrix printer The text portion of the thesis was generated using a different tool = chain: - create and/or edit the thesis text (vi) - format the text for printing (nroff) - print on an IBM I/O selectric (Datel 30) Printing on the Datel 30 was complicated by several factors. It wanted = BCDIC correspondence code, rather than ASCII. Also, it needed null = characters to provide enough time for various activities (eg, print ball = rotation, carriage returns, line feeds). And, given that paper feeding = was a manual process, we needed a way to initiate printing of a new = page, reprint botched pages, etc. So, I wrote a small utility program = that handled all of this. # Links https://en.wikipedia.org/wiki/Dendrogram = http://vtda.org/docs/computing/Sun/software/800-1115-01%20-%20SunOS%201.1%= 20Programmer's%20Reference%20Manual%20for%20SunCore.pdf = http://vtda.org/docs/computing/Sun/software/800-1787-10_SunCoreReferenceMa= nual_RevA_9May88.pdf = http://www-lehre.inf.uos.de/~sp/Man/_Man_SunOS_4.1.3_html/html6/suncoredem= os.6.html