[IPython-dev] Highlight lines of code in code cells?

[Mark Voorhies]

On 12/02/2013 04:22 PM, Mark Voorhies wrote:
> On 12/02/2013 04:10 PM, Gabriel Becker wrote:
>> On Mon, Dec 2, 2013 at 3:54 PM, Mark Voorhies <mark.voorhies at ucsf.edu>wrote:
>>
>>> On 12/02/2013 03:19 PM, Greg Wilson wrote:
>>>
>>>> Thanks,
>>>> Greg
>>>
>>> Just started fiddling with this, using rmagic.py and cythonmagic.py as
>>> references.
>>>
>>> Can anyone point me at documentation for getting at retrieving cell
>>> content by
>>> number and/or tag via the IPython shell instance?
>>>
>>
>> I could be entirely off base here, but my understanding is that the IPython
>> kernel (which provides the magics) used by the notebook doesn't have any
>> concept of cells/the whole notebook in the way you are going to need them.
>
> Looks like shell.history_manager.get_range works for cell numbers
> (and that the "tags" that Greg mentioned aren't yet implemented).

Here's a simple prototype:
https://github.com/markvoorhies/ipython/tree/diffmagic
(https://github.com/markvoorhies/ipython/commit/d24bbb8cd76ba420c61b428b2c9802651f815c6d)

"%diff 3 5"

Gives a simple text rendering of a line-based diff of cells 3 and 5, e.g.:

- def Hello():
+ def Hello(s):
?           +

       # A simple function
-     print "Hello, world"
?                   ^^^^^

+     print "Hello, %s" % s
?                   ^^ ++++

--Mark


>
> --Mark
>
>
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