Re: Is there a tool for visualizing grammar specifications?

Eliot & Linda <>
20 Jul 1998 17:03:56 -0400

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Is there a tool for visualizing grammar specifications? (1998-07-03)
Re: Is there a tool for visualizing grammar specifications? (Eliot & Linda) (1998-07-20)
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From: Eliot & Linda <>
Newsgroups: comp.compilers
Date: 20 Jul 1998 17:03:56 -0400
Organization: Compilers Central
References: 98-07-036
Keywords: parse, tools

Peter J. Farley III wrote:
> Pardon a very newbie question, but is there a public domain tool
> available (besides VCG) that can directly display the structure of a
> grammar from a yacc or ebnf description? The problem with VCG, as far
> as I can see so far, is that one has to write a grammar-to-graph
> translator before one could use it for this application.
> I'm particularly interested in such a tool for visually comparing
> different specifications of the same language, so a tool that
> permitted side-by-side or multiple-window comparisons of different
> grammars would be very helpful.
> Either Win95 or linux/X11 implementations would be the most useful to
> me, with a preference for Win95 at the moment.
> TIA for any help, info or ftp/url pointers you can provide.

Take a look at SIC, The Smalltalk-based Interactive Compiler-compiler:

by Dr. Lothar Schmitz of Munich University:

The new version:

runs above VisualWorks Non-Commercial

I should warn you I'm ruthlessly pushing VisualWorks Non-Commercial on
Eliot Miranda, ParcPlace division, ObjectShare

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