Re: [Caml-list] Parsing simple type expressions

[Martin Jambon <martin.jambon@ens-lyon.org>]

David Allsopp wrote:
> ocamlyacc - you can get most of it for free out of parsing/parser.mly in the OCaml sources... the section on type expressions starts at line 1144 for OCaml 3.11.0.

Our json-wheel library is a complete example:

http://martin.jambon.free.fr/json-wheel.html


Martin

>> -----Original Message-----
>> From: caml-list-bounces@yquem.inria.fr [mailto:caml-list-
>> bounces@yquem.inria.fr] On Behalf Of Paolo Donadeo
>> Sent: 06 January 2009 14:04
>> To: OCaml mailing list
>> Subject: [Caml-list] Parsing simple type expressions
>>
>> 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

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