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Make readline tab-completion work in two-process terminal frontend.
Make readline tab-completion work in two-process terminal frontend.

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completer.py
52 lines | 1.7 KiB | text/x-python | PythonLexer
# -*- coding: utf-8 -*-
import readline
import time
import sys
stdout = sys.stdout
class ClientCompleter2p(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,client, km):
self.km = km
self.matches = []
self.client = client
def complete_request(self,text):
line = readline.get_line_buffer()
#msg_id = self.km.xreq_channel.complete(text=text,line=line)#this method is not working, the code not continue
msg = self.km.session.send(self.km.xreq_channel.socket,
'complete_request',
dict(text=text, line=line))
# send completion request to kernel
# Give the kernel up to 0.5s to respond
msg_matches = None
for i in range(5):
if self.km.xreq_channel.was_called():
msg_xreq = self.km.xreq_channel.get_msg()
if msg["header"]['session'] == msg_xreq["parent_header"]['session'] :
if msg_xreq["content"]["status"] == 'ok' :
if msg_xreq["msg_type"] == "complete_reply" :
msg_matches = msg_xreq["content"]["matches"]
#break
time.sleep(0.1)
return msg_matches
def complete(self, text, state):
if state == 0 :
self.matches = self.complete_request(text)
if self.matches is None:
self.matches = []
print('WARNING: Kernel timeout on tab completion.')
#print self.matches
try:
return self.matches[state]
except IndexError:
return None