- how did you implement the parser, by hand or with a framework?

- did you implement a preprocessor or used the output of something like CPP?
- what about the output of the parser, do you create an AST?

Regards,

�� Javier

On Fri, Jun 17, 2011 at 1:34 PM, Dave Mason <dmason@mason-rose.ca> wrote:

I'm working on making a clean interface layer on top of FFI (and possibly Alien and NativeBoost).

It will look something like:

�� FFIParse createFFI: #System category: 'My-Category' library: 'System'.
�� System parseSystemHeader: 'sys/resource.h'.
�� rusage := System struct: #rusage.
�� System getrusage: 0 with: rusage.
�� Transcript show: 'Used ';
�� show: rusage ru_utime tv_sec;
�� show: '.';
�� show: rusage ru_utime tv_usec;
�� show: ' seconds of user CPU time';
�� cr.
�� System parseSystemHeaer: 'unistd.h';
�� sleep: 5.
�� pid := System getpid

I have a very compact, almost compete C header parser but I need to be able to get the output from
�� popen("echo \"#include <unistd.h>\"|gcc -E -","r")
or equivalent. ��The popen is easy enough to get at through FFI, but is there a way to connect either the FILE* or the file descriptor up to some ReadStream. ��In the worst case, I could probably use FFI to call fread(3) but is there a better way?

I'd also appreciate any simple examples of using FFI, especially with ExternalStructure subclasses.

Finally is there a way to get external variables such as 'extern int errno;' ?

Thanks in advance!

../Dave

--
Javier Pim��s
Ciudad de Buenos Aires