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From: tim@cmu-cs-k.ARPA (Tim Maroney)
Newsgroups: net.lang.c
Subject: Re: $ in identifiers and yacc
Message-ID: <20980030@cmu-cs-k.ARPA>
Date: Fri, 14-Dec-84 04:17:24 EST
Article-I.D.: cmu-cs-k.20980030
Posted: Fri Dec 14 04:17:24 1984
Date-Received: Sun, 16-Dec-84 05:08:52 EST
References: <2546@sdcc3.UUCP>
Organization: Carnegie-Mellon University, CS/RI
Lines: 17

There is no problem with yacc and a C compiler that accepts '$' in
identifiers.  All existing yacc programs would continue to work, and future
ones would simply be written without using '$' in the identifiers.  It is
not as if making the change would break anything or make yacc less useful.

It is my impression that the reason for '$' would be to access DEC OS
globals.  There are numerous other ways to do this, and that one
(assembly-language output filtering) requires absolutely no change to the
language.
-=-
Tim Maroney, Carnegie-Mellon University Computation Center
ARPA:	Tim.Maroney@CMU-CS-K	uucp:	seismo!cmu-cs-k!tim
CompuServe:	74176,1360	audio:	shout "Hey, Tim!"

"Remember all ye that existence is pure joy; that all the sorrows are
but as shadows; they pass & are done; but there is that which remains."
Liber AL, II:9.