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From: Jake Donham <jake@donham.org>
Date: Tue, 15 Sep 2009 18:03:38 -0700
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Subject: Re: [Caml-list] Re: Generating comments from camlp4
To: Anil Madhavapeddy <anil@recoil.org>
Cc: Alexey Rodriguez <mrchebas@gmail.com>,
	OCaml List <caml-list@inria.fr>
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X-Spam: no; 0.00; camlp:01 anil:01 anil:01 camlp:01 ocamldoc:01 ocaml:01 ocaml:01 2009:98 wrote:01 caml-list:01 functions:01 lex:01 ast:02 output:02 string:02 

On Tue, Sep 15, 2009 at 5:42 AM, Anil Madhavapeddy <anil@recoil.org> wrote:
> I dont believe you can add comments with camlp4; I'm using type-conv to h=
ack
> on an ORM layer, and it would be lovely to have the generated functions a=
lso
> have comments to not dirty up the OCamldoc. =A0And also, to maintain sani=
ty
> when reading through pages of generated OCaml...

Comments are not passed through the AST, but somehow they make it from
the input file to the output file. It looks like in
Camlp4/Printers/OCaml.ml there is a hook into the tokenizer to keep
track of comments as they are tokenized (search for CommentFilter).
Maybe there is some way to inject comments (at particular locations)?
Possibly by calling Gram.lex_string and/or Gram.filter? A hack, no
doubt.

Jake