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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,52fd60a337c05842 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-06-18 11:04:00 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!canoe.uoregon.edu!csulb.edu!newshub.sdsu.edu!west.cox.net!cox.net!newsfeed1.earthlink.net!newsfeed.earthlink.net!stamper.news.pas.earthlink.net!newsread2.prod.itd.earthlink.net.POSTED!not-for-mail Message-ID: <3D0F7605.285CA9D4@acm.org> From: Jeffrey Carter X-Mailer: Mozilla 4.7 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: ada paper critic References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Tue, 18 Jun 2002 18:04:00 GMT NNTP-Posting-Host: 63.184.8.56 X-Complaints-To: abuse@earthlink.net X-Trace: newsread2.prod.itd.earthlink.net 1024423440 63.184.8.56 (Tue, 18 Jun 2002 11:04:00 PDT) NNTP-Posting-Date: Tue, 18 Jun 2002 11:04:00 PDT Organization: EarthLink Inc. -- http://www.EarthLink.net Xref: archiver1.google.com comp.lang.ada:26273 Date: 2002-06-18T18:04:00+00:00 List-Id: Robert A Duff wrote: > > By the way, is it true that Algol 60 and/or Algol 68 was font-sensitive > (i.e. "reserved words" are distinguished by being in boldface)? I've never used A68, but I knew someone who used it in the early 1980s who explained that keywords were somehow distinguishable from other identifiers. In text this difference was boldface, so calling the difference "font" seems as good as any. In practice, the compiler required the keywords to be marked somehow to indicate that they were in the keyword representation. I don't recall the actual details of how they were marked. Sorry. Other things I recall: The programmer could declare new infix operators. This seemed like a lot of work for the programmer, and no doubt for the compiler writer. What Ada calls "type" A68 called "mode". I'm not sure what that was supposed to mean. "Type" seems better, though still not great, since usually declaring a type in Ada requires more than just the type declaration. These are remarks by an ignorant non-A68 user, so weigh them appropriately. -- Jeff Carter "I unclog my nose towards you." Monty Python & the Holy Grail