def comment_add_command(request, post_pk, message, comment_number=None):
'''
#1234 Blah-blah-blah - Answer to message #1234
#1234/5 Blah - Answer to reply #1234/5
'''
comment = PostInterface(request.user).add_reply(message, post_pk,
comment_number, from_client=request.from_jid.resource)
text = '''Reply posted\n%s %s''' % (
comment.get_number(),
comment.get_full_url()
)
return text
