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Date: Tue, 09 Jul 2013 22:23:56 -0400
From: Hongbo Zhang <bobzhang1988@gmail.com>
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To: Marc Weber <marco-oweber@gmx.de>, Caml List <caml-list@inria.fr>
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Subject: [Caml-list] Re: cppo and camlp4 ? which way to go ?

Hi,
    I think an easy way is to write a wrapper(in python, for example) to 
wrap both cppo and camlp4.
    btw, camlp4 does have optcomp which has similar functionality as cppo.
On 7/9/13 10:03 PM, Marc Weber wrote:
> It looks like ocaml supports only one -pp option?
> Now I want both: first cppo, then camlp4?
>
> Which way to go?
> way 1) find a way to make ocaml accept multiple -pp
>
> way 2) KISS: -pp 'cppo | camlp4', unlikely to work, because -pp adds the
>         input file as last argument?
>
>         Well - could be using -pp 'sh -c "cppo $1 | camlp4 $1 ..." '
>
>         that's linux, only, starting quoting hell
>
> way 3)
>    make cppo accept additional options, and make it call camlp4 and pass
>    its data to it
>    3.1: using a file: batteries includes with_temp_file, but would add
>          new dependencies
>    3.2: pipe through command, which cross platform implementation does
>          exist?
>
>
> way 4) rewrite my tracing code to use new -ppx (would take too long ?)
>
> Have I missed a simple solution ?
>
> I appologize if I've missed the obvious.
>
> Marc Weber
>