##// END OF EJS Templates
go to appropriate line when coming from another cell...
go to appropriate line when coming from another cell Sets the cursor on the last line of the cell when moved up from the top of the cell below, and sets the cursors to the first line when moving down from the bottom of a last line. Here, we retain the character that the cursor was on, so that users wishing to have up-down functionality like one document can still use this shortcut handler and simple adjust the at_top and at_bottom methods

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completer.py
58 lines | 1.9 KiB | text/x-python | PythonLexer
"""Adapt readline completer interface to make ZMQ request.
"""
# -*- coding: utf-8 -*-
try:
from queue import Empty # Py 3
except ImportError:
from Queue import Empty # Py 2
from IPython.config import Configurable
from IPython.core.completer import IPCompleter
from IPython.utils.traitlets import Float
import IPython.utils.rlineimpl as readline
class ZMQCompleter(IPCompleter):
"""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."""
timeout = Float(5.0, config=True, help='timeout before completion abort')
def __init__(self, shell, client, config=None):
super(ZMQCompleter,self).__init__(config=config)
self.shell = shell
self.client = client
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.client.shell_channel.complete(text=text, line=line,
cursor_pos=cursor_pos)
msg = self.client.shell_channel.get_msg(timeout=self.timeout)
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.')
pass
try:
return self.matches[state]
except IndexError:
return None
def complete(self, text, line, cursor_pos=None):
return self.rlcomplete(text, 0)