Visual debugger for yacc, anyone?
18 Mar 1998 22:56:09 -0500

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Newsgroups: comp.compilers
Date: 18 Mar 1998 22:56:09 -0500
Organization: Deja News - The Leader in Internet Discussion
Keywords: yacc, debug, comment

I am contemplating creating a visual debugger for LALR parsers. It
would allow the user to step through a parse, get example input token
streams to illustrate shift/reduce conflicts, reduce/reduce conflicts,
etc. It could give sample input streams for a given nonterminal or
production. The user could explore the grammar in a hypertext-like
way. Parser states would be available for those familiar with LR
parser generation.

I am currently deciding what to do for a class project. If you would
be interested in the tool described above, please send me mail and I
will send you a more detailed questionnaire. Don't worry -- it is very
brief; we haven't even decided whether we're doing this project
yet. (It depends on whether the idea generates sufficient interest.)

Steve <>

PS Pointers to similar systems would also be appreciated. Please tell me if
I'm reinventing the wheel!
[MKS yacc has a somewhat similar wheel, as do a few of the commercial
yacc-like systems. -John]

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