From: skaller <skaller@maxtal.com.au>
To: frouaix@liquidmarket.com
Cc: caml-list@inria.fr
Subject: Re: ocamlyacc/lex reentrancy
Date: Fri, 31 Dec 1999 06:09:39 +1100 [thread overview]
Message-ID: <386BADF3.80F07395@maxtal.com.au> (raw)
In-Reply-To: <199912301830.KAA12278@fiji01.liquidmarket.com>
Francois Rouaix wrote:
>
> I don't use ocamlyacc, but I do have lots of ocamllex lexers that need
> to be reentrant. I don't remember if I've posted that trick to the list
> already, but this is what you can do:
>
> In your opening section of the lexer:
>
> {
> type t = <something to store the data>
>
> let create_data () = .... (* unit -> t *)
>
> }
>
> and then for all rules, use
>
> rule somerule = parse
> | somepattern { (fun lexdata -> action) }
>
> And, when invoking a lexer function or entry point, you need to pass the
> additionnal argument, a in
> somerule lexbuf lexdata
Ahhhh! Thank you. I see how this works.
--
John Skaller, mailto:skaller@maxtal.com.au
10/1 Toxteth Rd Glebe NSW 2037 Australia
homepage: http://www.maxtal.com.au/~skaller
voice: 61-2-9660-0850
next prev parent reply other threads:[~2000-01-01 1:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-12-24 21:31 skaller
1999-12-30 18:30 ` Francois Rouaix
1999-12-30 19:09 ` skaller [this message]
2000-01-03 9:46 ` Markus Mottl
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