[IPython-dev] A thought about nbconvert

Brian Granger ellisonbg at gmail.com
Fri Nov 16 12:25:31 EST 2012

We could also use these tags to filter cells in the actual notebook UI.  So
a presentation mode could filter out certain tags.

On Fri, Nov 16, 2012 at 9:24 AM, Brian Granger <ellisonbg at gmail.com> wrote:

> I like the idea of using cell metadata to filter the things that appear in
> the converted notebook.  What about creating a metadata field called tags
> that is a list of tags that cell has.  That would allow to to include and
> exclude different tags upon conversion.  We could do:
> export and exclude tag=['solutions'] to create a notebook without the
> solution to problems for example.
> On Thu, Nov 15, 2012 at 11:48 PM, Matthias BUSSONNIER <
> bussonniermatthias at gmail.com> wrote:
>> Le 16 nov. 2012 à 00:46, David Warde-Farley a écrit :
>> Hi David,
>> > Hey Paul,
>> >
>> > Hmm. So, two things:
>> >
>> > - If I were to add it to the "simple" metadata editor (as is currently
>> the case with slideshow stuff, I think?) wouldn't that force a key name?
>> This is one of the reason the Metadata UI is not moving forward right
>> now. it is not made only for slideshow.
>> I would like to make it easily extendable.
>> My first thought was that you could register a callback that get the
>> current cell as first argument, and the div of the clicked button as second.
>> So that you can do whatever you want (just toggle a value) or completely
>> open a jQuery dialog.
>> The problem is  when does the metadata extension append ? is it through a
>> Js plugin, or anytime a notebook is launched.
>> The main problem with the second one is that it is hard to extend both
>> already instantiated  metadata UI toolbar and class prototype.
>> Also if the metadata is modified by something else than the button, how
>> is the button state updated ?
>> Eventually this UI might be used for touch device (cut, copy, past,
>> run)... so we surely want to be able to at least partially load it. (hence
>> jsplugin is hard)
>> unless you only hide part with css.
>> (this is also something I want to talk to brian, because right now js
>> plugin are always loaded and you might want to load them only at some point)
>> As for the key name, you could use your own prefix.
>> like stuff things in `nbconvert.conversionOption.whatever`,
>> `nbconvert.conversionOption.anotherStuff`
>> > - similarly, fine-grained behaviour (code but not output, output but
>> not code) seems hard to accomplish in a generic way.
>> You can also use 'notebook' and 'worksheet' level metadata.
>> this can be a global flag, which is 'merged' into each cell metadata at
>> convert time to avoid all the
>> `if metadata.nooutput or worksheet.metadata.nooutput :`
>> But if there is no global flag from command line, I'm fine with it, it
>> could be a done programatically. As I wrote on the other PR let's build a
>> good module, and having command line tool will be convenience.
>> --
>> Matthias
>> >
>> > Thoughts?
>> >
>> > David
>> >
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> --
> Brian E. Granger
> Cal Poly State University, San Luis Obispo
> bgranger at calpoly.edu and ellisonbg at gmail.com

Brian E. Granger
Cal Poly State University, San Luis Obispo
bgranger at calpoly.edu and ellisonbg at gmail.com
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