Re: [Caml-list] [ANN] cppo 0.9.2 - cpp for OCaml

[Alexy Khrabrov <deliverable@gmail.com>]

Perhaps it should be called opp?  Or does c stand for "compatible
preprocessor for ocaml"? :)

A+

On Fri, Aug 12, 2011 at 2:44 AM, Martin Jambon
<martin.jambon@ens-lyon.org> wrote:
> Dear list,
>
> I would like to announce the release of cppo 0.9.2 which contains a few
> additional features since the last announcement in 2009.
>
>  http://martin.jambon.free.fr/cppo.html
>
> cppo is a lightweight preprocessor analogous to cpp and compatible with
> the OCaml syntax. It provides the classic directives #define, #include,
> #ifdef, etc.
>
> Documentation: http://martin.jambon.free.fr/cppo-manual-0.9.2.txt
>
>
> New features:
>
> 1. #ext directive: calling external preprocessors
> 2. STRINGIFY and CONCAT
>
>
> 1. #ext directive: calling external preprocessors
> =================================================
>
> The new #ext directive allows to call an external command to process a
> lines of input until #endext.
>
> $ cat example1.ml
> let msg =
> #ext rot13
>  "BPnzy ehyrf!"
> #endext
>
> let () = print_endline msg
>
> $ ocamlopt -o example1 \
>  -pp "cppo -x rot13:\"tr '[a-zA-Z]' '[n-za-mN-ZA-M]'\"" example1.ml
>
> $ ./example1
> OCaml rules!
>
>
> 2. STRINGIFY and CONCAT
> =======================
>
> STRINGIFY allows to build string literals from unquoted text. This is
> useful for including source code in error messages. STRINGIFY(foo) is
> the equivalent of #foo in cpp syntax.
>
> CONCAT concatenates its two arguments into a single identifier.
> CONCAT(a, b) is the equivalent of a ## b in cpp syntax.
>
>
>
> Enjoy.
>
>
> Martin
>
> --
>
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>
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