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Fix #4777 and #7887...
Fix #4777 and #7887 The function in charge of actually converting cursor offset to CodeMirror line number and character number was actually crashing when the cursor was at the last character (loop until undefined, then access length of variable, which is undefined). This was hiding a bug in which when you would completer to a single completion pressing tab after as-you-type filtering, the completion would be completed twice. The logic that was supposed to detect whether or not all completions had a common prefix was actually faulty as the common prefix used to be a string but was then changed to an object. Hence the logic to check whether or not there was actually a common prefix was always true, even for empty string, leading to the deletion of the line (replace by '') in some cases.

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r13356:0a3c3bee
r20538:ae7f6d6a
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data.py
37 lines | 1.2 KiB | text/x-python | PythonLexer
# encoding: utf-8
"""Utilities for working with data structures like lists, dicts and tuples.
"""
#-----------------------------------------------------------------------------
# Copyright (C) 2008-2011 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
from .py3compat import xrange
def uniq_stable(elems):
"""uniq_stable(elems) -> list
Return from an iterable, a list of all the unique elements in the input,
but maintaining the order in which they first appear.
Note: All elements in the input must be hashable for this routine
to work, as it internally uses a set for efficiency reasons.
"""
seen = set()
return [x for x in elems if x not in seen and not seen.add(x)]
def flatten(seq):
"""Flatten a list of lists (NOT recursive, only works for 2d lists)."""
return [x for subseq in seq for x in subseq]
def chop(seq, size):
"""Chop a sequence into chunks of the given size."""
return [seq[i:i+size] for i in xrange(0,len(seq),size)]