I'm trying to make a Common Lisp front end to the Asymptote vector graphics language. I'd like to establish communication between a Lisp process and an Asymptote process and I have problems with this. Somehow Asymptote is hard to communicate with. The only working piece of code I have (stripped from xasy2asy.py) is in Python 2 and looks like this:
I'd love to implement this in Lisp (since I don't see another way of doing that). However, there's much to be desired about my real-life Lisp skills, and what's more I'm not much skilled in inter-process communication. I've been reading a lot these days, and I've got a mess of descriptors, sockets, and suchlike in my head.
I'd be happy if you at least point me in the right direction: usocket, iolib, implementation dependent tools...
As for the result, of course I'd like it to be portable. Or at least SBCL and CLISP. Or at least SBCL.
Any help appreciated.
import os
from subprocess import *
(rx, wx) = os.pipe()
(ra, wa) = os.pipe()
asy = Popen(['asy', '-noV', '-multline', '-q', '-inpipe=' + str(rx), '-outpipe=' + str(wa)])
fout = os.fdopen(wx, 'w')
fin = os.fdopen(ra, 'r')
fout.write("file fout = output(mode = 'pipe');\n")
fout.write("write(fout, sin(1), endl);\n") # just an example: calculate sin(1)
fout.flush()
print fin.readline() # this works, indeed!I'd love to implement this in Lisp (since I don't see another way of doing that). However, there's much to be desired about my real-life Lisp skills, and what's more I'm not much skilled in inter-process communication. I've been reading a lot these days, and I've got a mess of descriptors, sockets, and suchlike in my head.
I'd be happy if you at least point me in the right direction: usocket, iolib, implementation dependent tools...As for the result, of course I'd like it to be portable. Or at least SBCL and CLISP. Or at least SBCL.
Any help appreciated.