Hi! It's nice to hear this. As Mariano said, I started to work in something like this some months ago, but I couldn't make something useful yet because I don't have much free time. I can give you a hand if you need. I don't know about OS Process, but I have some experience with FFI, so I'll look for some examples. I also have some questions, - 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 Pimás Ciudad de Buenos Aires