Re: Algol68

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Article #3133

#3133

From: Charles Lindsey
Date: Mon, 25 Mar 1991 10:55

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In <1991Mar22.013748.4944@ico.isc.com> rcd@ico.isc.com (Dick Dunn) writes:

>it to answer a question.  (Particularly in the revised report, chasing down
>all the myriad productions sent you all over the language...and the worst
>of it was that the simple concept "this is not allowed" was expressed as
>giving you something to search for, which didn't exist!  If it came down
>to MURF MORFETY FOOBLE REFFOOBLETY, and you couldn't find a definition for
>that, it wasn't legal.)

Not at all. We carefully arranged for the production rules to be cross
referenced (both forwards and backwards). So if you wanted to know where or
whether some rule was defined the cross reference pointed you to a finite
number of places where it could be, and even warned you if there was a blind
alley.

I know of no subsequent language definition which has cross referenced its
grammar so thoroughly.

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References: <3787@bruce.cs.monash.OZ.AU> <chl.668272227@m1> <9168@castle.ed.ac.uk> <1991Mar22.013748.4944@ico.isc.com>

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From: chl@cs.man.ac.uk (Charles Lindsey)
Newsgroups: comp.lang.misc,comp.arch
Subject: Re: Algol68
Message-ID: <chl.669898523@m1>
Date: 25 Mar 91 10:55:23 GMT
References: <3787@bruce.cs.monash.OZ.AU> <chl.668272227@m1> <9168@castle.ed.ac.uk> <1991Mar22.013748.4944@ico.isc.com>
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