On Mon, Sep 29, 2003 at 03:27:24PM +0200, James Leifer wrote:
> Do you mean the parser.output file produced when you use the -v
> option?
> 
>     ocamlyacc -v foo.mly
> 

No.  I mean that once the parser is *already running*, you get a
complete trace of the entire action of the parser for some particular
input.  What states it enters as it reads particular input tokens, the
contents of its stack as it enters and leaves states, and so on.  This
is possible with Bison and Yacc, and I've used it before to debug
grammars written with those tools.  I read nothing in Ocamlyacc's (very
meager) documentation that indicates how one should do this or if it is
even possible at all.

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