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From: | Fischlin Andreas |
Subject: | Re: ISO FORWARD is now implemented |
Date: | Sat, 7 Dec 2024 14:22:31 +0000 |
Hi Gaius, I doubt this is correct, as PIM does (unofficially for sure as of PIM3) also know about FORWARD. E.g. in Wirth et al., 1992 (attached) we wrote And in EBNF this means
As all 1-pass Modula-2 compilers coming from N. Wirth tolerated above extension of the language, I would suggest to leave it in for all PIM variants (e.g. Wirth, 1985a,b; Wirth, 1987; Wirth et al., 1992). This may also matter for recursive use of procedures, which is not only a 1-pass compiler issue, but may matter quite importantly for code making use of recursive procedure calls. Regards, Andreas Cited References: ------------------------ Wirth, N., 1985a. A single-pass Modula-2 compiler for Lilith. Institut für Informatik, ETH, Zürich: 3. Wi269 Wirth, N., 1985b. A fast and compact compiler for Modula-2. Institut für Informatik, ETH, Zürich. Internal Report 64, 1-22. Wi261 Wirth, N., 1987. From Modula to Oberon. Institut für Computersysteme ETHZ, Swiss Federal Institute of Technology, Zürich, Switzerland. Internal report 82, 3-10. doi: 10.3929/ethz-a-005363226 Wi031 Wirth, N., Gutknecht, J., Heiz, W., Schär, H., Seiler, H., Vetterli, C. & Fischlin, A., 1992. MacMETH. A fast Modula-2 language system for the Apple Macintosh. User Manual. 4th, completely revised ed. Department of Computer Sciences (ETH), Zürich, Switzerland. User Manual , 116pp. https://www.sysecol2.ethz.ch/SimSoftware/RAMSES/Documents/MacMETH_Manual.pdf Wi068 ETH Zurich Prof. em. Dr. Andreas Fischlin Formerly IPCC Vice-Chair WGII Systems Ecology - Institute of Biogeochemistry and Pollutant Dynamics CHN E 24 Universitaetstrasse 16 8092 Zurich SWITZERLAND +41 44 633-6090 phone +41 79 595-4050 mobile Make it as simple as possible, but distrust it! ________________________________________________________________________ |
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