Add bitfield support to the groveller

[Luís Oliveira]

On Sat, May 1, 2010 at 1:26 AM, Desmond O. Chang <email address hidden> wrote:
> Hi all,
>
> This patch adds bitfield support to the groveller. Here is the usage:
>
> In grovel file, write:
>
> (bitfield flags-ctype
>  ((:flag-a "FLAG_A")
>    :documentation "DOCU_A")
>  ((:flag-b "FLAG_B")
>    :documentation "DOCU_B")
>  ((:flag-c "FLAG_C")
>    :documentation "DOCU_C"))
>
> And if the C header file has:
>
> #define FLAG_A 1
> #define FLAG_B 2
> #define FLAG_C 4
>
> This will generate:
>
> (cffi:defbitfield (flags-ctype)
>  (:flag-a 1)
>  (:flag-b 2)
>  (:flag-c 4))
>
> Documentation is also provided in the patch.

[2fc61b15b9d24aebf9466b941187216f (2fc61b15b9d24aebf9466b941187216f-deactivatedaccount)]

Tested on SBCL 1.0.42 on Linux 64 bits, works fine.
I hope it will be integrated to cffi, this is a very useful patch.