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Message-ID: <4b5157c30901060603k6d0589d2m469b170dc5ec7c8e@mail.gmail.com>
Date: Tue, 6 Jan 2009 15:03:51 +0100
From: "Paolo Donadeo" <p.donadeo@gmail.com>
To: "OCaml mailing list" <caml-list@yquem.inria.fr>
Subject: Parsing simple type expressions
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X-Spam: no; 0.00; serializer:01 ocaml:01 ocaml:01 bool:01 sscanf:01 genlex:01 camlp:01 char:01 parsing:01 functions:01 tuples:01 int:01 int:01 tuple:02 tuple:02 

For a serializer I'm writing I need to parse simple OCaml type
expressions composed by OCaml basic types, tuples, options and lists.
Given a string like "(int * string option) list" and this type:

type types =
  | Int
  | String
  | Float
  | Char
  | Bool
  | Option of types
  | List of types
  | Tuple of types list

the function I need should return something like List (Tuple ([Int;
Option(String)]))

Before starting with low level sscanf functions I looked at the Genlex
module, but it wasn't so inspiring. Then I tried with Camlp4 but the
documentation doesn't really shine :-)

So is there a simple way to write this function using some standard module?

TIA,


-- 
Paolo
~
~
:wq