[Caml-list] stupid q: camlp4

[Anastasia Gornostaeva]

Hello.

How can I learn modern Camlp4?

thx.
ermine

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[Jon Harrop]

On Saturday 08 November 2008 20:00:44 Anastasia Gornostaeva wrote:
> Hello.
>
> How can I learn modern Camlp4?

The new Camlp4 is not yet fully documented. The official documentation is on a
wiki here:

http://brion.inria.fr/gallium/index.php/Camlp4

Richard Jones' OCaml tutorial site has a simple "foreach" example:

http://www.ocaml-tutorial.org/camlp4_3.10/

Our OCaml Journal published an article about parsers and macros using the new
Camlp4 on 23rd November 2007:

http://www.ffconsultancy.com/products/ocaml_journal/?ol

I once posted a simple compiler for the "Minim" language that was written
using Camlp4:

http://caml.inria.fr/pub/ml-archives/caml-list/2007/08/c92bb15c444511674faf0c898d2e9986.en.html

--
Dr Jon Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/?e

[Anastasia Gornostaeva]

On Sat, Nov 08, 2008 at 09:24:05PM +0000, Jon Harrop wrote:
> On Saturday 08 November 2008 20:00:44 Anastasia Gornostaeva wrote:
> > Hello.
> >
> > How can I learn modern Camlp4?
>
> The new Camlp4 is not yet fully documented. The official documentation is on a
> wiki here:
>
> http://brion.inria.fr/gallium/index.php/Camlp4
>
> Richard Jones' OCaml tutorial site has a simple "foreach" example:
>
> http://www.ocaml-tutorial.org/camlp4_3.10/
>
> Our OCaml Journal published an article about parsers and macros using the new
> Camlp4 on 23rd November 2007:
>
> http://www.ffconsultancy.com/products/ocaml_journal/?ol
>
> I once posted a simple compiler for the "Minim" language that was written
> using Camlp4:
>
> http://caml.inria.fr/pub/ml-archives/caml-list/2007/08/c92bb15c444511674faf0c898d2e9986.en.html
>

Oh, how many useful links! I spent some time on ocaml.org site
to figure out something interesting for new camlp4, but it was not always clear
if the article is about new or old camlp4.

[Jon Harrop]

On Saturday 08 November 2008 21:03:33 Anastasia Gornostaeva wrote:
> On Sat, Nov 08, 2008 at 09:24:05PM +0000, Jon Harrop wrote:
> > Richard Jones' OCaml tutorial site has a simple "foreach" example:
> >
> > http://www.ocaml-tutorial.org/camlp4_3.10/
> >
> > Our OCaml Journal published an article about parsers and macros using the
> > new Camlp4 on 23rd November 2007:
> >
> > http://www.ffconsultancy.com/products/ocaml_journal/?ol
>

> Oh, how many useful links! I spent some time on ocaml.org site
> to figure out something interesting for new camlp4, but it was not always
> clear if the article is about new or old camlp4.

Well, you get what you pay for. ;-)

--
Dr Jon Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/?e

_______________________________________________

[Richard Jones]

On Sat, Nov 08, 2008 at 11:00:44PM +0300, Anastasia Gornostaeva wrote:
> How can I learn modern Camlp4?

With difficulty. That's sad because it's very powerful.

I would suggest starting with Martin's Jambon's tutorial. Even though
it refers to the "old" camlp4 / camlp5, it's still useful to
understand the concepts:

http://martin.jambon.free.fr/extend-ocaml-syntax.html

Then take a look at Martin's example of what changed between the two
versions:

http://martin.jambon.free.fr/examples/pa_json_static_3100beta.html

The camlp4 wiki has already been mentioned, and is very useful. This
is probably the most useful reference page of all:

http://brion.inria.fr/gallium/index.php/AST

Finally take a look at some real examples:

http://caml.inria.fr/cgi-bin/hump.en.cgi?sort=0&browse=92

Rich.

--
Richard Jones
Red Hat