|
|
# -*- coding: utf-8 -*-
|
|
|
import readline
|
|
|
from Queue import Empty
|
|
|
|
|
|
class ZMQCompleter(object):
|
|
|
"""Client-side completion machinery.
|
|
|
|
|
|
How it works: self.complete will be called multiple times, with
|
|
|
state=0,1,2,... When state=0 it should compute ALL the completion matches,
|
|
|
and then return them for each value of state."""
|
|
|
|
|
|
def __init__(self, shell, km):
|
|
|
self.shell = shell
|
|
|
self.km = km
|
|
|
self.matches = []
|
|
|
|
|
|
def complete_request(self,text):
|
|
|
line = readline.get_line_buffer()
|
|
|
cursor_pos = readline.get_endidx()
|
|
|
|
|
|
# send completion request to kernel
|
|
|
# Give the kernel up to 0.5s to respond
|
|
|
msg_id = self.km.shell_channel.complete(text=text, line=line,
|
|
|
cursor_pos=cursor_pos)
|
|
|
|
|
|
msg = self.km.shell_channel.get_msg(timeout=0.5)
|
|
|
if msg['parent_header']['msg_id'] == msg_id:
|
|
|
return msg["content"]["matches"]
|
|
|
return []
|
|
|
|
|
|
def rlcomplete(self, text, state):
|
|
|
if state == 0:
|
|
|
try:
|
|
|
self.matches = self.complete_request(text)
|
|
|
except Empty:
|
|
|
print('WARNING: Kernel timeout on tab completion.')
|
|
|
|
|
|
try:
|
|
|
return self.matches[state]
|
|
|
except IndexError:
|
|
|
return None
|
|
|
|
|
|
def complete(self, text, line, cursor_pos=None):
|
|
|
return self.rlcomplete(text, 0)
|
|
|
|
