I had a similar problem.  The solution was to create another module
which was opened inside the Parser module.  This way you can add your
own interface on top of the Parser/Lexer module.  I hope this helps.

Chris

On 11/10/10 13:55, Basile Starynkevitch wrote:
> On Mon, 11 Oct 2010 12:22:49 +0200
> oliver@first.in-berlin.de wrote:
>>
>> the header-section from ocamlyacc appears in the
>> *.ml file of the parser, but not in the mli-file.
> 
> 
> Maybe menhir is better in that respect (I don't know). Did you try it?
> http://gallium.inria.fr/~fpottier/menhir/
> 
> 
> Cheers.