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refactor to improve cell switching in edit mode...
refactor to improve cell switching in edit mode This code was repeated in both CodeCell and TextCell, both of which are extensions of Cell, so this just unifies the logic in Cell. TextCell had logic here to check if the cell was rendered or not, but I don't believe it is possible to end up triggering such a code path. (Should that be required, I can always just add back these methods to TextCell, performing the .rendered==True check, and calling the Cell prior to this, code mirror at_top would only return true on if the cursor was at the first character of the top line. Now, pressing up arrow on any character on the top line will take you to the cell above. The same applies for the bottom line. Pressing down arrow would only go to the next cell if the cursor was at a location *after* the last character (something that is only possible to achieve in vim mode if the last line is empty, for example). Now, down arrow on any character of the last line will go to the next cell.
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decorators.py
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/ IPython / utils / decorators.py
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# encoding: utf-8
"""Decorators that don't go anywhere else.
This module contains misc. decorators that don't really go with another module
in :mod:`IPython.utils`. Beore putting something here please see if it should
go into another topical module in :mod:`IPython.utils`.
"""
#-----------------------------------------------------------------------------
# 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.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Code
#-----------------------------------------------------------------------------
def flag_calls(func):
"""Wrap a function to detect and flag when it gets called.
This is a decorator which takes a function and wraps it in a function with
a 'called' attribute. wrapper.called is initialized to False.
The wrapper.called attribute is set to False right before each call to the
wrapped function, so if the call fails it remains False. After the call
completes, wrapper.called is set to True and the output is returned.
Testing for truth in wrapper.called allows you to determine if a call to
func() was attempted and succeeded."""
# don't wrap twice
if hasattr(func, 'called'):
return func
def wrapper(*args,**kw):
wrapper.called = False
out = func(*args,**kw)
wrapper.called = True
return out
wrapper.called = False
wrapper.__doc__ = func.__doc__
return wrapper
def undoc(func):
"""Mark a function or class as undocumented.
This is found by inspecting the AST, so for now it must be used directly
as @undoc, not as e.g. @decorators.undoc
"""
return func