A class supporting chat-style (command/response) protocols.
 
This class adds support for 'chat' style protocols - where one side
sends a 'command', and the other sends a response (examples would be
the common internet protocols - smtp, nntp, ftp, etc..).
 
The handle_read() method looks at the input stream for the current
'terminator' (usually '
' for single-line responses, '
.
'
for multi-line output), calling found_terminator() on its
receipt.
 
for example:
Say you build an async nntp client using this class.  At the start
of the connection, you'll have self.terminator set to '
', in
order to process the single-line greeting.  Just before issuing a
'LIST' command you'll set it to '
.
'.  The output of the LIST
command will be accumulated (using your own 'collect_incoming_data'
method) up to the terminator, and then control will be returned to
you - by calling your found_terminator() method.

Modules
		asyncore regex socket string

Classes
		asyncore.dispatcher async_chat fifo simple_producer   class async_chat(asyncore.dispatcher)       This is an abstract class.  You must derive from this class, and add the two methods collect_incoming_data() and found_terminator()      __getattr__(self, attr) from asyncore.dispatcher __init__(self, conn=None) __repr__(self) from asyncore.dispatcher accept(self) from asyncore.dispatcher add_channel(self) from asyncore.dispatcher bind(self, addr) from asyncore.dispatcher close(self) from asyncore.dispatcher close_when_done(self) automatically close this channel once the outgoing queue is empty connect(self, address) from asyncore.dispatcher create_socket(self, family, type) from asyncore.dispatcher del_channel(self) from asyncore.dispatcher discard_buffers(self) get_terminator(self) handle_accept(self) from asyncore.dispatcher handle_close(self) handle_connect(self) from asyncore.dispatcher handle_error(self) from asyncore.dispatcher handle_expt(self) from asyncore.dispatcher handle_expt_event(self) from asyncore.dispatcher handle_read(self) handle_read_event(self) from asyncore.dispatcher handle_write(self) handle_write_event(self) from asyncore.dispatcher initiate_send(self) listen(self, num) from asyncore.dispatcher log(self, message) from asyncore.dispatcher push(self, data) push_with_producer(self, producer) readable(self) predicate for inclusion in the readable for select() recv(self, buffer_size) from asyncore.dispatcher refill_buffer(self) # refill the outgoing buffer by calling the more() method # of the first producer in the queue send(self, data) from asyncore.dispatcher set_reuse_addr(self) from asyncore.dispatcher set_socket(self, socket) from asyncore.dispatcher set_terminator(self, term) Set the input delimiter.  Can be a fixed string of any length, an integer, or None writable(self) predicate for inclusion in the writable for select()   class fifo            __init__(self, list=None) __len__(self) first(self) is_empty(self) pop(self) push(self, data)   class simple_producer            __init__(self, data, buffer_size=512) more(self)

Functions
		find_prefix_at_end(haystack, needle) prefix_regex(needle)

Data
		__file__ = '/usr/lib/python1.6/asynchat.pyc' __name__ = 'asynchat' prefix_cache = {}