Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!bionet!arisia!sgi!shinobu!odin!delrey!shap
From: shap@delrey.sgi.com (Jonathan Shapiro)
Newsgroups: comp.lang.c++
Subject: Re: YACCable grammars available for C++ and C
Keywords: Grammar, C++
Message-ID: <5130@odin.SGI.COM>
Date: 12 Mar 90 14:37:50 GMT
References: <25F844F7.28923@paris.ics.uci.edu>
Sender: news@odin.SGI.COM
Distribution: usa
Organization: Silicon Graphics, Inc., Mountain View, CA
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In article <25F844F7.28923@paris.ics.uci.edu> schmidt@crimee.ics.uci.edu (Doug Schmidt) writes:
>
>Jim Roskind
>jar@ileaf.com
>
>--
>facilis descensus avernus
>----------------------------------------
>schmidt@ics.uci.edu (ARPA)
>office: (714) 856-4043

Jim, I think your grammar is terrific.  I, too, would be interested in
getting a PD lexer to go along with it if you know of one - there are
lots of tools that could be built from this basis.  If one doesn't
show up in the next day or so, however, perhaps I'll just post the one
I've been building here.

I also want to report a bug in both grammars (or rather, an
oversight): they don't accept the empty file, which should be legal.
In my copy, I fixed this by changing

    prog.start:
	    translation.unit
	    ;

to

    prog.start:
	    |
	    translation.unit
	    ;

Doing it in translation.unit led to shift-reduce errors.


Jonathan Shapiro
Silicon Graphics, Inc.