[Caml-list] Stream parser in 3.03alpha ... ? <-> ??

[Caml-list] Stream parser in 3.03alpha ... ? <-> ??

[Christophe Raffalli]

I just noticed something is missing in the Upgrading file for ocaml-3.03:

II Non-label changes

Q2: I get a syntax error when I try to compile a program using stream
    parsers.

A2: Stream parser now require camlp4. It is included in the
    distribution, and you just need to use "ocamlc -pp camlp4o" in
    place of "ocamlc".

Q2': I still get a syntax error when I try to compile a program using stream
    parsers.

A2': Hops, we did come back to a single question mark (? instead of ??) for
    error management in stream parser.

So the story is 
  ocaml < 2.99 =          a single question mark
  ocaml >= 2.99 < 3.03    two question marks
  ocaml >= 3.03           a single question mark

PLEASE stay with two question marks because maintening OCaml software so that
they compile with many versions will become a nightmare soon :-(

-- 
Christophe Raffalli
Université de Savoie
Batiment Le Chablais, bureau 21
73376 Le Bourget-du-Lac Cedex

tél: (33) 4 79 75 81 03
fax: (33) 4 79 75 87 42
mail: Christophe.Raffalli@univ-savoie.fr
www: http://www.lama.univ-savoie.fr/~RAFFALLI
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Re: [Caml-list] Stream parser in 3.03alpha ... ? <-> ??

[Diego Olivier Fernandez Pons]

Christophe Raffalli à écrit :

< PLEASE stay with two quetion marks because maintening OCaml software
< so that they compile with many versions will become a nightmare soon
< :-(

Dans quelle mesure pourrait servir le CamlP4 à maintenir la
compatibilité entre les différentes versions du compilateur ?

Could CamlP4 be used to maintain the compatibility between the Caml
compilers ?

        Diego Olivier





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Re: [Caml-list] Stream parser in 3.03alpha ... ? <-> ??

[Daniel de Rauglaudre]

Hi,

On Thu, Nov 29, 2001 at 11:39:51AM +0100, Diego Olivier Fernandez Pons wrote:
> Christophe Raffalli à écrit :
> 
> < PLEASE stay with two quetion marks because maintening OCaml software
> < so that they compile with many versions will become a nightmare soon
> < :-(
> 
> Could CamlP4 be used to maintain the compatibility between the Caml
> compilers ?

Actually, this "?" instead of "??" was a bug in Camlp4: I had
forgotten to change it in Camlp4 when it had been changed in OCaml
yacc parser. I fixed it in the current version.

-- 
Daniel de RAUGLAUDRE
daniel.de_rauglaudre@inria.fr
http://cristal.inria.fr/~ddr/
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