From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,PLING_QUERY autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: a07f3367d7,b6d862eabdeb1fc4 X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII Path: g2news2.google.com!news3.google.com!feeder.news-service.com!feeder.news-service.com!85.214.198.2.MISMATCH!eternal-september.org!.POSTED!not-for-mail From: "J-P. Rosen" Newsgroups: comp.lang.ada Subject: Re: Ada noob here! Is Ada widely used? Date: Tue, 25 May 2010 20:16:24 +0200 Organization: Adalog Message-ID: References: <4bfbbdcb$0$6882$9b4e6d93@newsspool2.arcor-online.net> <93a818e9c91ccba6d8ea3a7258ef3265@mixmaster.it> <4bfbdd95$0$6776$9b4e6d93@newsspool3.arcor-online.net> <7aqxv2d9qatt.owvat4lrco20.dlg@40tude.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Injection-Date: Tue, 25 May 2010 18:16:36 +0000 (UTC) Injection-Info: mx02.eternal-september.org; posting-host="Dn22F68J9CHYFQQlT81DGA"; logging-data="22484"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19p0ub+XUq7ihfkYOA3Mgkv" User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) In-Reply-To: <7aqxv2d9qatt.owvat4lrco20.dlg@40tude.net> Cancel-Lock: sha1:GpebhT/tuWioBJtmZNuHbCubmCI= Xref: g2news2.google.com comp.lang.ada:11979 Date: 2010-05-25T20:16:24+02:00 List-Id: Dmitry A. Kazakov a �crit : >> In most programming languages, there is a relation between the structure >> of the language itself and the kind of data it handles best. For this >> reason, and others like ease of porting, it is generally a good idea to >> write the compiler in its own language, safe for special cases like >> initial bootstrapping. > > I don't think this is true. I said "in most programming languages..." > > 1. Theoretically there is no obvious connection between the language and > the things it describes. The word "red" is not red. English grammar is not > influenced by Maxwell's equations, etc. [*] I was talking about computer languages. > 2. Practically, is there any SQL parser written in SQL? OK, that's an exception. > The languages in which a compiler can be written are in minority. Maybe more than you think. C compilers are in C, I wouldn't be surprised if C++ compilers were in C++ and PL/1 compilers in PL/1. Most Ada compilers are in Ada; I once knew a Lisp compiler in Lisp, and of course there is someone who swears that Cobol is a great language for writing Cobol compilers ;-). Hint: he wrote one of the best Cobol compilers for the PC - in Cobol. -- --------------------------------------------------------- J-P. Rosen (rosen@adalog.fr) Visit Adalog's web site at http://www.adalog.fr